Jurnal Inovasi Teknologi Terapan

Rancang Bangun Sistem Kendali PID Motor DC Berbasis Blynk untuk meningkatkan Efisiensi dan Fleksibilitas

2025-08-11T07:52:24+00:00

Efficiency in setting PID parameters is important in supporting control system performance, especially in automation applications. This research compares two methods of PID settings, namely manually using keypads and LCDs with an online IoT-based way through the Blynk application. The system is designed to control the speed of a 12V DC motor with the response of an FC-51 infrared sensor. Testing is done through an experimental approach by recording the system response to variations in KP, KI, and KD values. The results show that the IoT-based method provides better control efficiency, high flexibility, and ease of data visualization in real time. Blynk also allows storing historical data in graphical form, although it has limitations, such as a maximum limit of sending 30,000 data per month and a limited number of widgets in the free version. Therefore, for future development, it is recommended to use a standalone dashboard or integration with Node-RED to make the system more flexible, secure, and minimal code. Overall, this research shows that the application of IoT to PID control systems can improve the effectiveness of settings and has the potential to be applied more widely in modern automation systems.

Evaluasi Partikel Cangkang Buah Maja Sebagai Filler Pada Komposit Kampas Rem Organik

2025-08-11T14:02:46+00:00

The exploration of natural resources as materials for engineering applications is increasingly important, as organic materials offer greater environmental benefits. The Maja fruit, a typical Indonesian plant, has not been fully utilized for engineering purposes, particularly its shells. The goal of utilizing this material is to contribute to sustainable development. In this study, Maja fruit particles were used as a filler in combination with rice husk ash. The particle compositions of Maja fruit were set at 20%, 30%, and 40%, respectively. The composite fabrication process was conducted under cold conditions at a pressure of 30 MPa. The results indicated that an increase in the composition of Maja fruit shell particles led to higher compressive strength in the composite, although this caused a decrease in surface hardness. The optimal composite performance was achieved with a composition of 40% Maja fruit shell particles and 60% epoxy resin, as determined by a weighting method. It was also observed that while the inclusion of rice husk ash tended to reduce compressive strength, it contributed to enhancing the hardness of the composite.

Pengaruh Kombinasi Briket Batubara Antrasit Dan Serbuk Arang Tempurung Kelapa Terhadap Kuat Tekan Dengan Variasi Parameter Proses

2025-01-08T02:57:08+00:00

Coal is one of Indonesia's most abundant energy and mineral resources in the mining sector, remaining a primary energy source globally. This study aims to analyze the effect of combining anthracite coal and coconut shell charcoal powder on the compressive strength of briquettes with variations in process parameters, including temperature, heating time, and water:molasses ratio as a binder. Briquettes were produced using a composition of 90% anthracite coal and 10% coconut shell charcoal powder, with molasses binders in ratios of 4:1 and 4:3. Compressive strength tests were conducted at temperatures of 100°C and 120°C with heating times of 60 and 90 minutes. The results indicate that the optimal combination to achieve the highest compressive strength was at a temperature of 120°C, a heating time of 90 minutes, and a water:molasses ratio of 4:3, yielding a compressive strength of 506.3 kPa (5.166 kg/cm²). Increasing temperature and a higher molasses ratio significantly improved the mechanical strength of the briquettes, while prolonged heating at lower temperatures tended to reduce compressive strength due to binder degradation. Therefore, further research is needed to optimize process parameters to meet national standards and enhance briquette durability.

Modifikasi Mesin Pembelah Bambu Dengan Menambah Fungsi Menjadi Mesin Pengirat Dan Perajang Bambu

2025-08-11T14:00:46+00:00

Bamboo processing is one of the activities in the home industry in many rural areas. Currently, bamboo craftsmen in Indonesia still slice and chop bamboo manually. The process of slicing and chopping bamboo manually often faces problems, including poor production quality. Modifying the bamboo splitting machine by adding slicing and chopping functions aims to increase the production efficiency of bamboo processing for skewer production and make the machine more optimal and multifunctional. The modification of the bamboo splitting machine with additional functions as a slicing and chopping machine uses two blades, namely a slicing blade designed to thin the bamboo to 3-4 mm and a chopping blade to chop or split the bamboo into several small sticks with a square profile of 3-4 mm, and an input hopper that adjusts to the average width of the test material. The results of bamboo slicing using the machine obtained 2 to 3 slices that meet the desired size, and the rest are residual slices that do not meet the desired size from one bamboo split. The results of bamboo chopping using the machine obtained 3 to 4 chopped bamboo that meet the desired size, and a few residual chopped bamboo that do not meet the size and defective chopped bamboo due to the bamboo entering the input hopper in a tilted position. The production capacity of the bamboo slicer is 1,816 slices/hour, and the production capacity of the bamboo chopper is 7,513 sticks/hour.

Analisa Pengaruh Parameter Proses FDM Terhadap Kekuatan Tarik Produk 3 Dimensi

2025-01-08T13:40:06+00:00

3D Printing, commonly referred to as Additive Manufacturing, has facilitated rapid advancements and brought significant changes to the manufacturing industry, particularly in revolutionizing production processes. This technology is extensively employed for rapid prototyping, allowing the creation of designs that are both visually perceptible and physically tangible, with actual volume. This research aims to examine the tensile strength of PLA+ filament under various parameter settings and assess their impact using the Taguchi method. The experiments were performed using an FDM Creality Ender 3 Pro 3D printer, which features a printing area of 220mm x 220mm x 250mm and a 0.4 mm nozzle diameter. The parameters investigated include Nozzle Temperature (220°C, 230°C, 240°C), Bed Temperature (65°C, 70°C, 75°C), and Layer Thickness (0.10mm, 0.15mm, 0.20mm). The findings revealed that the optimal tensile strength was achieved in the first trial, with a Nozzle Temperature of 220°C, Bed Temperature of 65°C, and Layer Thickness of 0.10mm, yielding an average tensile strength of 22 MPa across three replications.

Sistem Informasi Merdeka Belajar Kampus Merdeka (MBKM) Di Politeknik Manufaktur Negeri Bangka Belitung Berbasis Website

2025-01-08T02:36:38+00:00

The development of information technology has influenced various fields, including education. At the Babel State Manufacturing Polytechnic, the Merdeka Belajar Kampus Merdeka (MBKM) program aims to provide flexibility for students in choosing learning activities. However, the implementation of the program is often hampered by administrative problems, such as delays in submitting credit claims to the academic advisor. To overcome this, a web-based information system was developed that facilitates the process of claiming and recapitulating credits online. This study used the prototyping method with blackbox testing involving 13 respondents. The test results showed a user acceptance score (UAT) of 84.92%, indicating that this system is feasible to implement. With this system, students can submit claims and recap credits independently without depending on the presence of lecturers, thereby increasing the efficiency and transparency of credit management. The implementation of this system is expected to improve the quality of administrative services at the Babel State Manufacturing Polytechnic.

Respon Produksi dan Kualitas Benih Padi IPB 3S dan IPB 9G terhadap Aplikasi Boron pada Kondisi Lahan Kering

2025-02-25T03:55:38+00:00

Rice plants typically grow in paddy fields, but they can also be cultivated in dryland areas, known as upland rice. This study aims to examine the effect of applying the micronutrient boron on the growth and morphological characteristics of two rice varieties, IPB 3S and IPB 9G, conducted at the Leuwikopo experimental field of IPB using the legowo planting system. The treatments consisted of four combinations: no boron application on IPB 9G and IPB 3S varieties, and boron application on both varieties. Boron was applied at a concentration of 20 ppm through foliar spraying on the lower leaf surface three times during the growing period. Observations were made on plant characteristics, including leaf shape and position, plant height, number of tillers, flowering age, panicle exertion, and grain characteristics. Based on the results, it can be concluded that rice grain filling is influenced by pollen production and viability, which can increase the percentage of filled seeds and seed production. However, the production results in this study could not be analyzed due to bird pest attacks, which resulted in the absence of harvest data. Therefore, further research is recommended with more optimal plant protection to accurately obtain seed production data.

Robot Pengenal Warna dengan Penganturan Kecepatan Menggunakan Metode PID

2025-01-09T01:28:57+00:00

This research focuses on the development of a robot equipped with a color recognition system and speed control using a PID controller. The robot employs a TCS3200 color sensor to detect object colors and determine its movement trajectory. The optimal distance between the sensor and the object was identified as 0.5 cm to ensure maximum accuracy. The PID controller is responsible for regulating the motor speed, ensuring the robot moves according to the specified velocity. At a setpoint of 100, the tuning parameters Kp 1.0, Ki 0.0012, and Kd 0.00045 produced a balance between fast response and stability. With a setpoint of 200, the tuning values Kp 1.0, Ki 0.0002, and Kd 0.0005 maintained both quick response and stability. For a setpoint of 300, the configuration of Kp 1.0, Ki 0.00035, and Kd 0.00070 achieved a balanced response with minimal overshoot. The test results demonstrate that the robot is capable of following color-based paths according to the predetermined speed settings.

Maximum Power Point Tracking (MPPT) pada Solar Panel

2025-01-10T04:22:34+00:00

The increasing demand for electricity encourages the utilization of renewable energy such as solar panels. However, solar electricity production faces efficiency challenges as the panel output is highly dependent on light intensity and ambient temperature. This test aims to optimize the output power of solar panels using Maximum Power Point Tracking (MPPT) with Perturb and Observe (PO) method and light sensor-based prediction (LDR). The test was conducted using 100 Wp monocrystal solar panel with MPPT algorithm implemented through buck-boost converter and controlled by Arduino Mega 2560. The results showed that the MPPT system increased the output power efficiency by 16.13% compared to the non-MPPT system. Variation of light intensity from 0 to 10,400 lux resulted in an increase in voltage from 1.15V to 25V, with maximum power increasing from 0.023W to 13W, reaching an average of 800 LUX/W. Characterization of LDR resulted in a conversion factor of 7,761.194 LUX/LDR, enabling accurate prediction of MPPT values based on light intensity. Comparative analysis between the LDR and PO methods showed the LDR method reached a maximum power of 11.62W at 9,293.71 lux, while the PO method reached 12.51W at 8,500 lux, indicating comparable performance in optimizing solar panel output power.

Aplikasi Smarthome Berbasis IoT Menggunakan Android Studio

2025-01-13T00:59:07+00:00

The Internet of Things (IoT) allows the integration of hardware with internet networks for remote control and regulation. IoT is a technology that allows various devices to connect and communicate with each other over the internet, thus enabling efficient automation. This research develops a Smarthome application called EDITH that operates based on IoT. The app allows control of the lighting device through a smartphone with additional features such as scheduling, energy monitoring, and usage history. The system uses the NodeMCU ESP32 as a microcontroller that is integrated with the Adafruit.io server. The test results show that EDITH can function effectively in controlling the lights remotely, with a user satisfaction rate of 84%.

Aplikasi Pencatatan Penggajian Dan Koperasi Di Lapas Narkotika Kelas II A Pangkalpinang

2025-01-08T02:26:25+00:00

Analisis Pemanfaatan Serbuk Gergaji Kayu Dan Egg Tray Sebagai Bahan Alternatif Tahan Panas Pada Genset

2025-01-08T02:42:13+00:00

Technological developments have encouraged the use of generator sets as an alternative source of electricity, but this also causes problems, such as excessive heat production that disrupts comfort in the work area. This study aims to utilize sawdust and egg tray waste as heat-insulating materials for generator sets. Sawdust, which is often discarded, can be utilized to reduce the negative impacts of using generator sets and overcome environmental pollution caused by this waste. Previous studies have shown that the combination of sawdust and starch at certain temperatures can produce products with good compressive strength. The results of the ANOVA analysis in this study showed that the volume fraction of 35%: 15% with a thickness of 20 mm gave the highest heat absorption coefficient of 43.06°C, while the volume fraction of 40%: 10% with a thickness of 10 mm produced the lowest value of 35.8°C. These findings emphasize the importance of selecting volume fractions and thicknesses in increasing heat absorption efficiency, as well as providing alternative solutions for the management of sawdust and egg tray waste.

Aplikasi Monitoring Volume Cairan Infus pada Pasien

2025-01-08T02:47:27+00:00

Infusion or intravenous fluids are given through a vein to replace fluids or nutrients lost from the body. Manual monitoring of infusions by nurses often carries a risk of error. To overcome this, a tool was developed that uses a loadcell sensor to measure liquid weight, an infrared sensor to detect droplets, and an ESP32 module to send data in real time to a database and display it on a monitor screen or website. This system provides a warning when the infusion fluid is less than 100 ml. Even so, there is an error in the loadcell sensor of 0.1% -0.2%, and the drip sensor readings are sometimes not detected due to certain factors. Apart from monitoring infusion fluids, the system also allows input of patient data via the website. Overall, the tool functions as intended, although there are still some aspects that need improvement.

Pengaruh Penggunaan Kapur Sirih Sebagai Perekat Terhadap Kekuatan Tekan Briket

2025-01-08T02:55:44+00:00

The increasing dependence on fossil fuels drives the need for alternative energy solutions to reduce environmental impacts and reliance on petroleum. Coal, particularly anthracite, has emerged as one of the best options due to its abundant availability in Indonesia. However, coal combustion often results in the emission of harmful gases, requiring special handling. This study aims to develop coal briquettes using lime water as a binder. In addition to improving the mechanical characteristics of the briquettes, lime water is also intended to reduce sulfur gas emissions during the briquette combustion process. The briquettes were produced using a binder-to-water ratio (5:6, 5:7, 5:8, 5:9), pressing pressure (8, 9, 10 tons), and drying time (2, 4, 6 days). Compression testing was conducted following the ISO 844 standard using a Universal Testing Machine. The highest result in this study was 502 kPa (5.11 kg/cm²), achieved with a binder-to-water ratio of 5:9, a pressing pressure of 8 tons, and a drying time of 4 days. However, this result remains far below the SNI standard (50 kg/cm²).

Analisis Baja S55C Terhadap Suhu Pemanasan Dan Media Pendingin Pada Proses Hardening

2025-01-16T07:06:26+00:00

The carbon steel chosen for this research is S55C steel which is medium or medium carbon steel. The hardening process is a heat treatment process carried out with the aim of increasing the natural hardness of metal or steel. This process is carried out at high temperatures, namely at the austenization temperature which is used to dissolve cementite in austenite which is then quenched quickly. The method used in this research is experimental. The parameters used in this research were temperatures of 880°C, 950°C, and 1020°C and used seawater, salt water, and oil as cooling media. Based on the hardness test results after the hardening process, the combination of temperature 1020°C and sea water produces the lowest average hardness, namely 24.8 HRC, and the combination of temperature 1020°C and salt water produces the highest average hardness, namely 40.

Analisis Pengaruh Perekat Tepung Tapioka Pada Pengurangan Kadar Abu Briket Tempurung Kelapa

2025-01-08T03:01:38+00:00

Binders play a vital role in briquette production by uniting charcoal particles into a solid form. This study aims to evaluate the effect of tapioca starch concentration as a binder on reducing the ash content of coconut shell briquettes. The binder concentrations used were 10%, 15%, and 20% of the total material mixture, with ash content testing conducted according to SNI 01-6235-2000 standards. The briquette production process involved raw material preparation, mixing, molding, and drying. The results indicated that binder concentration significantly influenced the ash content of the briquettes. Lower binder concentrations resulted in reduced ash content, with the lowest ash content of 1.52% achieved at a binder concentration of 10%. Conversely, higher binder concentrations tended to increase ash content due to residual binder that did not fully combust. This study emphasizes the importance of regulating binder concentration to enhance the quality of coconut shell briquettes as an alternative fuel source.

Optimalisasi Parameter Proses Mesin CNC Milling Terhadap Kekasaran Permukaan Yang Akan Digunakan Untuk Membuat Cetakan Kampas Rem Depan

2025-01-08T03:14:19+00:00

This study aims to determine the optimal parameters in the CNC Milling process to produce low surface roughness and improve the quality of brake pad molds. By applying the Taguchi method, the results showed that the process parameters have a significant effect on surface roughness. Data analysis revealed that increasing feed speed and depth were positively correlated with surface roughness. Of the parameters tested, feed speed had the largest contribution of 40.46%, followed by feed depth of 14.01%, and spindle speed of 12.36%. The optimal parameter combination proposed to achieve the best surface roughness is a feed speed of 100 mm/min, a feed depth of 0.2 millimeters, and a spindle rotation of 3343 RPM. These findings provide an important contribution to the automotive industry to improve the efficiency and quality of brake pad production, a component that plays a crucial role in vehicle safety.

Pengaruh Proses dan Variasi Fraksi Perekat Briket Antrasit Terhadap Nilai Kuat Tekan

2025-01-08T03:12:57+00:00

The transition away from reliance on fossil fuels is critical to fostering the development of renewable energy sources, with briquettes emerging as a particularly popular alternative. This study evaluates the effects of drying processes and variations in binder fractions on the compressive strength of anthracite briquettes. The briquettes were produced using binder fractions (water: dolomite lime) of 4:10, 4:12, 5:10, and 5:12 and subjected to mechanical pressures of 8, 9, and 10 tons with drying durations of 2, 4, and 6 days. The findings indicate that the 5:12 binder fraction achieved the highest compressive strength of 544 kPa after 6 days of drying, reflecting enhanced mechanical strength due to increased dolomite lime content. Conversely, an optimal drying time of 4 days was identified, balancing moisture reduction and briquette structural stability. This research provides valuable insights for developing high-quality briquettes as efficient and environmentally friendly renewable energy sources.

Analisis Pengaruh Variasi Kecepatan Putaran Mesin Peniris Minyak Terhadap Kualitas Penirisan Keripik Bayam Milik UMKM Jabal Dinar

2025-01-08T03:18:01+00:00

Spinach chips are an innovative and healthy snack made primarily from spinach leaves mixed with flour and fried, where the oil-draining process plays a crucial role in determining the final product's quality. Home industries often rely on traditional methods, such as air-drying, although oil-draining machines have been introduced to Jabal Dinar SMEs. However, these machines require improvement due to excessively high and unstable rotation speeds. This study aims to identify the causes of instability and analyze the effects of varying rotation speeds (300, 400, 500 rpm) and draining durations (40, 60, 80 seconds) on product quality. The results indicate that the optimal speed is 400 rpm with a draining duration of 80 seconds, achieving a final weight of 77% while maintaining the texture and crispness of the spinach chips without breaking. In contrast, a speed of 500 rpm removes more oil, but the excessive centrifugal force damages the product due to the chips' thin and fragile nature.

Analisis Pemanfaatan Serbuk Gergaji Kayu Dan Egg Tray Sebagai Bahan Alternaltif Peredam Suara Pada Genset

2025-01-08T03:19:42+00:00

Noise is a serious problem that affects human health and comfort. This study aims to develop natural soundproofing materials from sawdust and egg trays as a more economical alternative to conventional soundproofing materials. Using an experimental method, this study analyzed the effect of volume fraction and specimen thickness on the sound absorption coefficient. The ANOVA results showed that both factors had a significant effect on certain frequencies. Specimens with a volume fraction of 40%:10% and a thickness of 20 mm produced the highest sound absorption coefficient of 0.163, while specimens with a volume fraction of 35%:15% and a thickness of 10 mm recorded the lowest value of 0.04. These findings indicate that the optimal combination of volume fraction and thickness can increase the effectiveness of the material in reducing noise, providing a sustainable solution to overcome noise problems in the surrounding environment.

Analisis Pengaruh Temperatur Suhu dan Kecepatan Putar Screw Terhadap Hasil Filament 3D Printing Pada Mesin Filament Extruder Menggunakan Metode Taguchi

2025-01-08T09:30:10+00:00

The development of 3D printing technology has opened up great opportunities in various industries, especially in the manufacture of complex three-dimensional objects. However, the quality of the print results is greatly influenced by the physical and mechanical properties of the filament used. The filament production process, especially in filament extruder machines, requires extra attention to operational parameters such as extrusion temperature and screw rotation speed. Variations in these parameters significantly affect filament quality, such as tensile strength and thickness, which can decrease if not properly adjusted. This study aims to analyze the effect of extrusion temperature and screw rotation speed parameters on filament quality, and to determine the optimal settings using the Taguchi method. The results showed that screw rotation speed is the most significant faktor in determining filament diameter with a contribution of 73%. In addition, extrusion temperature contributes 17.6%. Through optimization using the Taguchi method, it is known that the optimal extrusion temperature is 250°C with a screw rotation speed of 5 RPM, producing filament with a diameter of 1.8 mm.

Analisis Pengaruh Perlakuan Panas Terhadap Sifat Kekerasan Baja Karbon S55C

2025-01-08T13:48:36+00:00

This study aims to analyze the effect of the heat treatment (quenching) process on the hardness of S55C carbon steel used as cutting blades for plastic shredding machines. JIS S55C steel was chosen as an alternative material, with hardening temperature variations of 850°C, 950°C, and 1050°C, and cooling media consisting of well water, young coconut water, and cooking oil (3 liters each). The test results showed that the hardness of the steel before heat treatment was 29.6 HRC. After heat treatment, the highest hardness was achieved at a temperature of 950°C with a value of 56 HRC using well water as the cooling medium. This study concludes that temperature variations and cooling media significantly influence the hardness of S55C steel.

Studi Eksperimen Terhadap Performansi Mesin Bubut Bemato Series 44378 BU 27 Berdasarkan Penyimpangan Kesilindrisan Produk Hasil Pembubutan

2025-01-08T13:52:54+00:00

Machine tools are machines used to produce products in the industrial sector. Machine tools that have been used for a very long time will naturally experience a decrease in performance, this is also experienced by the Bemato Series 44378 BU 27 lathe in Polman Negeri Babel which has entered its service life for approximately 10 years. The factors that affect the results of lathe machining are machining parameters, including cutting speed, cutting depth, and engine rotation speed. To find out how good the performance of the lathe can be done in various ways or tests, one of which is the cylindricity test. The material used in this test is st-41 steel. From the results of the research conducted, the largest deviation in cylindricity of the Bemato Series 44378 BU 27 lathe is 769 μm. Based on the deviations that occur when compared with the Grades of tolerance table, the results are included in the IT 15 grade. This value can be concluded that the BU 27 machine has experienced a decline in performance that is very far from its minimum standard, and is only capable of producing workpieces with tolerances above 769 μm. With this decline in performance, the lathe that was studied must be repaired and maintained immediately so that the performance of the machine can be returned to standard conditions.

Analisis Varian Tekanan Mesin Hydraulik Dan Persentase Filler Pada Kampas Rem AMC Berpenguat BFA Dan SIO₂ Terhadap Nilai Koefisien Gesek ASTM G99-05

2025-01-09T00:49:21+00:00

The safety aspect is important that must be considered in vehicles, because components that not comply with standards can pose serious risks. The use of asbestos also have a negative impact on health, caused by exposure to contaminated air and can damage respiratory system. This research aims to develop environmentally friendly brake linings, as well as studying the effect of two-way hot compaction pressure and reinforcement volume percentage on friction coefficient. This research uses powder metallurgy method which starts from the process mixing recycled aluminium powder, silica sand, and palm oil boiler fly ash, using ball mill machine (BPR 10:1) at speed 90 rpm, for 6 hours. Compaction was carried out in two directions with pressure variants of 5000, 5400 and 5800 Psi at temperature 350°C for 10 minutes. The sintering process was carried at temperature 600°C with holding time of 10 minutes. Friction coefficient testing is carried out to calculate the wear by following the ASTM G99-05 standard. The results show that increasing the percentage reinforcement and compaction pressure can increase friction resistance, highest wear value of 0.055 gr with parameters (84% reinforcement, pressure 5000 Psi) and the lowest wear value of 0.032 parameters (92% reinforcement, pressure 5800 Psi).

Potensi Serbuk Kayu Puspa Sebagai Pembuatan Papan Partikel Untuk Pengaplikasian Produk Furniture

2025-01-09T01:15:10+00:00

In order to meet the needs and desires of human life, science and technology have experienced rapid progress. Science and technology have developed in various aspects of life. Technological progress has also occurred in composite materials which are still being researched. Particle board is an artificial board made by pressing industrial waste from plantations, forestry, and agriculture together with organic adhesives. Low-quality wood waste products that may contain cellulose and lignin, such as sawdust, twigs, turning residues, and others, can be utilized. In this study, which was carried out using the direct experimental method. The parameters used were mesh 10, 20, and 30 with volume fractions of 60%: 40%, 70%: 30%, and 80%: 20%. In this study, the results of the largest impact strength were found in the volume fraction of 60%:40% on mesh 30 with a result of 16.34 J/m2 and the smallest impact value was found in the volume fraction of 70%:30% on mesh 10 of 9.28 J/m2 where this value does not meet the SNI-03-2105-2006 standard for making particle boards.

Rancang Bangun Mesin Pembuatan Filament 3D Printing Dari Kemasan Mineral

2025-01-09T01:26:02+00:00

Plastic plays an important role in everyday life, especially as food and beverage packaging. However, uncontrolled use of plastic causes environmental problems, with plastic waste in Indonesia reaching 64 million tons per year. This study aims to utilize plastic bottle waste as a material for making 3D filaments, which can reduce the amount of plastic waste and support recycling. Data collection involves identifying problems, determining machine components following the stages in the VDI 2222 method. From the results of the experiment in determining the optimal size of cutting plastic bottles, namely a width of 9 mm and a thickness of 0.37 mm. Before making filaments, plastic bottles must be cleaned and heated to remove motifs that can affect the quality of the filament.

Optimalisasi Parameter Pada Mesin CNC Milling Terhadap MRR Menggunakan Material S50C Dengan Metode Taguchi

2025-01-09T01:37:42+00:00

This study aims to analyze the effect of process parameters on the Material Removal Rate (MRR) in CNC milling machining of S50C steel material. The process parameters examined include spindle speed (RPM), cutting speed (Vc), and depth of cut. The experimental design uses the Taguchi method with an L9 (3³) Orthogonal Array matrix, including three repetitions to ensure data reliability. The analysis results show that the depth of cut has the most significant impact on increasing MRR, contributing 86.14%. The optimal MRR value is achieved with the process parameter combination of spindle speed at 3,184 rpm, cutting speed at 105 m/min, and depth of cut at 0.6 mm. Selecting the appropriate process parameters can enhance the efficiency of material removal in CNC milling machining. This research provides guidance for practitioners to determine optimal parameters to achieve maximum results in material processing.

Sistem Aplikasi Presensi Menggunakan Fingerprint Sebagai Monitoring Orang Tua Terhadap Kehadiran Mahasiswa Polman Babel Berbasis IoT

2025-01-15T01:00:59+00:00

A student attendance system based on Internet of Things (IoT) technology with fingerprint sensors and whatsapp notifications was developed to improve accuracy, efficiency, and security in recording attendance in an educational environment. This research aims to design and implement an attendance system that utilizes fingerprint sensors to authenticate student attendance data legally and sends realtime notifications to parents via WhatsApp. The development process begins with data collection through literature studies and needs analysis to design the required features. The system is designed by integrating hardware in the form of fingerprint sensors and IoT modules and software that includes mobile applications and framework-based websites. Testing is carried out in stages, from unit tests to integration tests, to ensure all components work properly. System implementation involves the use of tools by students and lecturers as well as regular maintenance to ensure operational sustainability. The results show that this system is able to reduce the potential for fraud in attendance, improve the efficiency of recording, and strengthen communication between the campus and parents. Thus, this system is expected to be an effective solution in overcoming attendance problems in higher education, especially at the Bangka Belitung State Manufacturing Polytechnic.

Pembuatan Game 2D Materi Bangun Datar Menggunakan Metode ADDIE

2025-01-10T13:54:42+00:00

Educational games are games that contain learning content, including Mathematics learning. The Mathematics educational game development project aims to improve the ability of junior high school students in grade VII to understand basic Mathematics concepts in the field of Planar Buildings by incorporating Mathematics learning materials into educational games of the RPG (Role Playing Game) type. The research method used in this study is Research and Development, with the ADDIE development model. This development process includes several main stages, namely analyzing student needs by conducting interviews with grade VII Mathematics subject teachers, designing prototypes or game flows, developing educational game applications using Construct 2, testing involving material experts, and media, and direct testing on grade VII junior high school students. The validation results from material experts reached 84% and media expert validation reached 90% with valid criteria. Application testing with Black Box Testing on grade VII students of SMP Negeri 2 Sungailiat obtained an effectiveness level of 91.6%. Thus, the Datar Building educational game for grade VII junior high school students is declared valid and feasible.

Sistem Proteksi Dan Kontrol Pada Sensor Motor Menggunakan Face Rcognition

2025-01-15T16:36:05+00:00

A motorcycle protection system based on Face Recognition was developed to improve security and prevent theft. This system combines protection key technology with a real-time location tracking feature connected via an Android application. NodeMCU is used as the main controller that integrates the GPS module to obtain motorcycle location data, while Firebase functions as a storage and processor of location data displayed on the application. This system is designed to control motorcycle electricity, including turning the motorcycle on and off via the application, while monitoring the location of the motorcycle with high accuracy. Testing was carried out to assess the function of key protection and motorcycle location tracking. The system has proven to have a fast response time and is reliable in controlling motorcycle electricity, both for one unit and several motorcycle units at once. Location tracking testing showed a success rate of 99% with a very low error of 0.0003%, while the data displayed on the application and Firebase has an accuracy of 100%. The results of the study show that this system can replace manual ignition with a better level of security. In addition, the location tracking feature provides additional benefits for users to monitor the position of the motorcycle in real time with accurate and reliable data.

Rancang Bangun Sistem Bel Mikrokontroler Berbasis Android Pada SMP Setia Budi Sungailiat

2025-01-08T05:49:56+00:00

In The World Of Education, The Bell Is One Of The Important Innovations Used To Inform The Turn Of Time Or Important Events. This Android-Based Microcontroller Bell System Is A Form Of Development Of The Bell Innovation. This Research Was Conducted At SMP Setia Budi Sungailiat With The Aim Of Improving The Efficiency And Effectiveness Of Using The School Bell And Developing An Application That Is Easy To Use Because Based On Direct Observation, It Shows That The Use Of Electric Bells At The School Is Less Efficient. In Some Situations, When Teachers Or Staff Are Not In The Room, The Bell Is Often Rung By Students, Which Makes Its Use Less Effective. Through A Case Study Approach And Prototype Method, This Research Developed An Application That Allows Controlling The School Bell Through An Android Application. The Application Is Equipped With Features To Set The Bell Schedule To Be Rung As Well As Set The Real Time Time Automatically. The Results Show That The System Is Able To Save The Bell Schedule And Ring It According To The Specified Time And According To The Selected Sound. The Results Of Questionnaire Testing On Respondents Obtained A Percentage Value Of 80%.

Penerapan Pembangkit Listrik Tenaga Angin Untuk Penerangan Lampu Jalan Dipesisir Pantai Teluk Uber Secara Otomatis Berbasis IoT

2025-01-09T04:51:44+00:00

Renewable energy, particularly wind power, offers a relevant solution to address climate change challenges and the growing electricity demand, especially in coastal areas such as Pantai Teluk Uber, Bangka Belitung. This study develops a Wind Power Generation System (PLTB) based on the Internet of Things (IoT) for real-time monitoring via smartphones. The system utilizes a wind turbine equipped with an anemometer sensor for wind speed, an INA219 sensor for monitoring current and voltage, and a BH1750 sensor for measuring light intensity. The collected data is transmitted to an IoT platform for remote monitoring. Additionally, the system was tested for battery charging and discharging, with charging requiring approximately 8 hours at an average current of 1 A, and discharging lasting around 10 hours with a 12V 10W DC lamp load. The maximum power generated by the system is 6.73 watts at a wind speed of 9 m/s, while the minimum power recorded is 0.35 watts at a wind speed of 2 m/s. The results show that the IoT-based PLTB system can efficiently provide energy for nighttime lighting and other applications.

Evaluasi Potensi Lahan Untuk Pengembangan Tanaman Jagung Di Kecamatan Muara Bangkahulu Kota Bengkulu

2025-02-25T06:08:27+00:00

Corn is a strategic food crops in Indonesia besides rice and soybeans and efforts to meet their needs is through the expansion of crop land. This study aimed to obtain a map of the suitability of land for the cultivation of corn and draw up recommendations for improving the productivity of land management in Muara Bangkahulu District, Bengkulu City. The research was carried out from December 2020 to February 2021. Implementation of this study consists of four stages those are, preparation stage, the field survey, analysis and interpretation of data, and the determination of land suitability classes. The information that obtained are presented with descriptive to determine land suitability classes, as well as obtaining the land suitability class relationship with the productivity of corn in the subdistrict of Muara Bangkahulu, Bengkulu City. The results of research showed that from 2,396 ha area of Muara Bangkahulu Bengkulu city, which can be used mainly for agricultural expansion include 25.4 hectares of open land, shrubs 125.8 ha, 587.5 ha of mixed farms and rice fields 695.2 ha. For the development of corn plants can be done in the open land and shrubs with an area of 151.2 ha of potential land are suitable for the 76.87 ha and 74.33 ha of corn crops are not suitable. Recommendations to improve the management of land suitability classes actually be potentially which are aplication with dolomite and calcite.

Simulasi Pendeteksi Kebakaran Dini Menggunakan Cisco Packet Tracer

2025-08-11T13:59:03+00:00

This study aims to simulate an early fire detection system based on the Internet of Things (IoT) using Cisco Packet Tracer software. The system is designed by integrating a smoke detector, automatic sprinkler, and siren, all connected through a Home Gateway and monitored via a laptop. When the smoke sensor detects smoke, the system automatically activates the sprinkler and siren, and sends a notification to the monitoring center. Several simulation scenarios were conducted to evaluate the system's reliability and response time. The results indicate that the system operates automatically and responsively according to the implemented programming logic. The use of Cisco Packet Tracer allows system development and testing without the need for physical hardware, thus supporting IoT-based learning and research effectively.

Pengaruh Suhu Mesin Pembuat Filamen 3D Printing Dari Kemasan Mineral Terhadap hasil Filamen Menggunakan Uji Tarik

2025-01-15T08:38:35+00:00

This study aims to examine the effect of machine temperature on the process of making 3D printing filament from recycled plastic water bottles on filament quality, focusing on tensile testing as the main mechanical parameter. The filament produced from recycled PET (Polyethylene Terephthalate) plastic bottles is used in 3D printing, representing an approach to reduce plastic waste. The filament-making machine's temperature is considered a significant variable that can influence the mechanical properties of the produced filament, including tensile strength. In this study, the Taguchi L4 method was employed, resulting in 12 test specimens with varying machine temperatures (210°C and 220°C), pulling speed (18 RPM and 24 RPM), nozzle temperature (260°C), bed temperature (90°C), print speed (50%), and infill density (107.1%). The results showed that the optimum outcome was achieved in the third experiment, with a combination of 220°C machine temperature and 18 RPM pulling speed, with an average tensile strength of 59.6 MPa. This study contributes to optimizing the process parameters for making 3D printing filaments from plastic water bottles.

Pengaruh Variasi Fraksi Volume Komposit Berpenguat Serat Pelepah Kelapa Sawit Terhadap Kekuatan Tarik

2025-01-09T00:33:54+00:00

The use of oil palm fronds is rarely used in the world of research. Oil palm fronds are only used in animal feed such as goats and cows, but in this study, oil palm fronds are used to make composite materials. Composites are a combination of reinforcement and binder. The reinforcement uses oil palm frond fiber while the binder uses resin. In this tensile test to determine the effect of the volume fraction of oil palm frond fiber with a volume fraction of 35%, 40%, and 45% while soaking in 5% NaOH for 2 hours. The results showed a tensile strength of 35% of 30.7 MPa, 40% of 38.8 MPa and 45% of 42.5 MPa. So the highest tensile strength is in the volume fraction of 45% and the lowest tensile strength is in the volume fraction of 35%.

Analisis Permukaan Benda Bubutan Dalam Pengujian Peforma Mesin Bubut Bemato Series 44378

2025-01-08T03:03:47+00:00

The performance of a machine significantly impacts the outcome on the workpiece. Therefore, regular maintenance of the machine is necessary. Over time, the machine's performance tends to decline. From the results of surface roughness testing on workpieces using variations in RPM and depth of cut parameters with constant feeding, the highest roughness value was 4.483 μm, produced by BU 27 and BU 30, with the highest roughness value of 2.694 μm. This study aims to test and verify the machine's performance level by examining the surface roughness values of ST41 workpieces. The research employs an experimental method, followed by processing the roughness data of machining results using a Bemato series 44378 lathe, involving 9 specimens and 2 replications.

Analisis Efisiensi Dan Produktivitas Mesin Produksi Keripik Telur Cumi (Keritcu)

2025-01-08T02:24:40+00:00

This study aims to analyze the efficiency and productivity of the production machine for Keripik Telur Cumi (Keritcu), a traditional snack from Bangka made from squid eggs and sago. The research employs a quantitative approach by measuring operational time, production capacity, energy consumption, and defective product rates. Efficiency analysis was conducted using Overall Equipment Effectiveness (OEE) indicators, which include machine availability, performance, and product quality. The results show a machine efficiency rate of 75% with an average productivity of 2.5 kg/hour. The OEE value of 45% falls below the ideal industry standard (>85%), with a daily downtime of 1 hour and a product rejection rate of 10%. Improvement recommendations include reducing downtime, increasing production speed, and lowering the defect rate through machine optimization and operator training. The implementation of these recommendations is expected to enhance efficiency, productivity, and the product's competitiveness in the market.

Perencanaan Sistem PLTS Off-Grid Untuk Kebutuhan Energi Listrik Pada Perkebunan Kelapa Sawit

2025-06-23T02:50:15+00:00

Palm oil plantations are one of the important sectors in the growth of the economy in Indonesia. One of the palm oil plantation areas in the Pasaman Barat Regency is being developed with an estimated land area of 100 hectares. However, due to the location of the land being far from settlements, there is currently no electricity supply that can be used for the operational needs of the land. This research provides a solution for the planning of an Off-Grid solar power plant (PLTS). The method used is a descriptive method with a quantitative research type. Based on the calculations, the number of PV panels obtained was 14 units and produces a total power of 2.397,89 W, SCC capacity calculation obtained 35 A, Battery capacity 12V/100Ah 2 units, and inverter 3 kW to produce AC voltage. The calculation of the Bill of Quantities (BoQ) for material needs amounts to Rp. 21.986.000. This result indicates that the planning of the solar power system is feasible for the long-term operational needs of the plantation, which only requires initial construction capital.