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All Journal Dinamika : Jurnal Teknik Mesin AMAR (Andalas Management Review) Accurate: Journal of Mechanical Engineering and Science Jurnal Vokasi Mekanika Research Journal of Social Economics Empowerment (ROSEE)
Suparno, Joko
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Humanities Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Rancang Bangun Sistem Automatic Semi Returnless Berbasis Arduino Uno pada Engine Caterpillar C27 Studi Kasus PT. Sapta Indra Sejati Widi Achmad Sukisno, Sulis; Suparno, Joko; Ardiansyah Halim, Dimas
Accurate: Journal of Mechanical Engineering and Science Vol. 3 No. 1 (2022): April 2022
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v3i1.1508

Abstract

Pump units with a Caterpillar C27 engine with an EUI (Electronic Unit Injector) fuel system that often has low power due to filter clogging at PT. Sapta Indra Sejati. Filter cloggingoccurs due to due to the thickened biofuel content and creates a crust. If the machine has a problem, the mining process can be disrupted because the coal loading area is flooded. This study aims to create an additional system in the form of a automatic semi-returnless where the fuel return line is changed automatically into the filter because the fuel return is clean. The movement of the return control valve is regulated by a microcontroller which is programmed according to specifications and needs. The microcontroller used is Arduino Unowith pressure and temperature sensors. Arduino Uno is programmed when the engine will experience low power with a fuel pressure of 400 kPa then the return path is changed to semi returnless. With a change in the semi returnless path, the pressure becomes stable at 380 kPa and the engine RPM is stable with power that is still maintained. The advantages of semi-returnless system are that filter replacement costs can be reduced and production time is not interrupted.
Analisis Daya Serap Suara Material Berbasis Polyester Staple Fibre Untuk Karpet Lantai Kendaraan Joko Sumbogo, Yuliarto; Ardiansyah, Dimas; Suparno, Joko; Riski, Kautzar; Andri W.H, Dwi
Accurate: Journal of Mechanical Engineering and Science Vol. 4 No. 1 (2023): April 2023
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v4i1.1791

Abstract

This research studies about the ability of the acoustic properties or absorption of the vehicle floor carpet material which consists of several forming components, with an experimental method using the tube impedance method. The components of this car floor carpet material consist of a skin section which includes a surface made of polyester staple fiber plastic fiber, binders made of latex SBR material, backing made of Polyethylene (PE) powder and the under layer made of Polyester Fiber material (PET) Silencer. The carpet material for the vehicle floor was made into three samples to determine the average of sound absorption coefficient. The sound absorption coefficient was obtained from testing the flat test sample using the ASTM E1050-98 tube impedance method. The use of Polyethylene (PE) powder as a backing for floor mats has a sound absorption coefficient with a rating of B (above 0.8) at a frequency of 3,000 Hz. While the sound absorption coefficient reaches the highest point of 0.99 at a frequency of 3,000 Hz. This is because the backing with Polyethylene (PE) powder material has porous holes. The micro surface is used as a layer of air space so that it can effectively reduce and increase the absorption of sound that occurs inside the vehicle when driving. The sound absorption coefficient of vehicle floor carpet increases significantly at low frequencies and slightly decreases at high frequencies
Rancang Bangun Bracket Pointer Cetak 3D Berbahan ABS pada Mesin Laser Cutting CO₂ Halim, Dimas Ardiansyah; Adyan, Muhammad Ariq; Suparno, Joko; Wijaya, Anugerah Bima
DINAMIKA : Jurnal Teknik Mesin Vol 10, No 1 (2025): Jurnal Dinamika Teknik Mesin
Publisher : Program Studi Teknik Mesin Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/dinamik.v10i1.9697

Abstract

Ketepatan posisi titik potong merupakan aspek krusial dalam proses pemotongan menggunakan mesin laser cutting CO₂. Namun, operator sering mengalami kesulitan dalam menentukan titik awal pemotongan karena tidak adanya panduan visual yang presisi, terutama saat ruang material sangat terbatas. Untuk menjawab permasalahan tersebut, penelitian ini bertujuan untuk merancang dan membangun bracket pointer sebagai dudukan bagi modul laser pointer yang berfungsi memberikan panduan visual sebelum proses pemotongan dimulai. Proses rancang bangun dilakukan melalui tahapan identifikasi kebutuhan, desain menggunakan perangkat lunak CAD, pembuatan prototipe dengan metode pencetakan 3D berbahan ABS, serta pengujian langsung pada mesin laser cutting CO₂. Parameter pencetakan yang digunakan dalam proses ini antara lain layer height 0,2 mm, infill density 4 mm, suhu nozzle 250°C, suhu heated bed 100°C, dan kecepatan cetak 60 mm/s. Hasil pengujian menunjukkan bahwa penggunaan laser pointer secara signifikan membantu meningkatkan akurasi penempatan awal titik potong. . Selain itu, penggunaan alat bantu ini mampu menghemat waktu pengaturan awal hingga 3 menit atau setara dengan peningkatan efisiensi waktu sebesar 14,3%. Bracket berfungsi dengan baik dalam kondisi normal, namun dapat mengalami sedikit pergeseran jika terjadi getaran berat pada mesin. Secara umum, prototipe ini dinilai efektif sebagai perangkat bantu dalam meningkatkan efisiensi proses setup dan kualitas produksi pada mesin laser cutting CO₂.
Pembuatan Sumur Resapan untuk Penanggulangan Banjir di Salatiga Sumbogo, Yuliarto Joko; Halim, Dimas Ardiansyah; Suparno, Joko; Prasetyawati, Erlina
Research Journal of Social Economics Empowerment Vol. 1 No. 1 (2025): February 2025
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/rosee.v1i1.2420

Abstract

Perubahan cuaca ekstrem yang menyebabkan kekurangan air pada musim kemarau dan banjir pada musim hujan telah menjadi masalah lingkungan yang signifikan. Selain itu, rendahnya kemampuan tanah, terutama di kawasan perumahan dan gedung perkantoran, dalam meresap air hujan semakin memperburuk keadaan. Salah satu solusi untuk mengatasi masalah ini adalah pembangunan sumur resapan, yang berfungsi menampung air hujan dan memungkinkan air meresap ke dalam tanah. Penelitian ini bertujuan untuk mengatasi masalah banjir dan meningkatkan daya serap air ke dalam tanah melalui pembuatan sumur resapan di wilayah Salatiga. Metode pelaksanaan meliputi pembuatan sumur resapan dengan berbagai konstruksi, seperti sumur tanpa pasangan di dinding, sumur dengan batu bata atau batu kali, serta sumur dengan dinding besi beton atau blawong, yang disesuaikan dengan kondisi tanah. Hasil dari program ini menunjukkan bahwa sumur resapan efektif mengurangi aliran permukaan, mengatasi banjir, mengisi ulang cadangan air tanah, serta mencegah erosi dan pencemaran air tanah. Selain itu, sumur resapan juga dapat mengurangi beban pada sistem drainase kota. Kesimpulannya, pembangunan sumur resapan merupakan solusi yang efektif dalam pengelolaan air hujan, yang dapat mengurangi dampak banjir, meningkatkan kualitas air tanah, serta menjaga keseimbangan ekosistem di wilayah perkotaan.
Rancang Bangun Sistem Automatic Semi Returnless Berbasis Arduino Uno pada Engine Caterpillar C27 Studi Kasus PT. Sapta Indra Sejati Widi Achmad Sukisno, Sulis; Suparno, Joko; Ardiansyah Halim, Dimas
Accurate: Journal of Mechanical Engineering and Science Vol. 3 No. 1 (2022): April 2022
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v3i1.1508

Abstract

Pump units with a Caterpillar C27 engine with an EUI (Electronic Unit Injector) fuel system that often has low power due to filter clogging at PT. Sapta Indra Sejati. Filter cloggingoccurs due to due to the thickened biofuel content and creates a crust. If the machine has a problem, the mining process can be disrupted because the coal loading area is flooded. This study aims to create an additional system in the form of a automatic semi-returnless where the fuel return line is changed automatically into the filter because the fuel return is clean. The movement of the return control valve is regulated by a microcontroller which is programmed according to specifications and needs. The microcontroller used is Arduino Unowith pressure and temperature sensors. Arduino Uno is programmed when the engine will experience low power with a fuel pressure of 400 kPa then the return path is changed to semi returnless. With a change in the semi returnless path, the pressure becomes stable at 380 kPa and the engine RPM is stable with power that is still maintained. The advantages of semi-returnless system are that filter replacement costs can be reduced and production time is not interrupted.
Analisis Daya Serap Suara Material Berbasis Polyester Staple Fibre Untuk Karpet Lantai Kendaraan Joko Sumbogo, Yuliarto; Ardiansyah, Dimas; Suparno, Joko; Riski, Kautzar; Andri W.H, Dwi
Accurate: Journal of Mechanical Engineering and Science Vol. 4 No. 1 (2023): April 2023
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v4i1.1791

Abstract

This research studies about the ability of the acoustic properties or absorption of the vehicle floor carpet material which consists of several forming components, with an experimental method using the tube impedance method. The components of this car floor carpet material consist of a skin section which includes a surface made of polyester staple fiber plastic fiber, binders made of latex SBR material, backing made of Polyethylene (PE) powder and the under layer made of Polyester Fiber material (PET) Silencer. The carpet material for the vehicle floor was made into three samples to determine the average of sound absorption coefficient. The sound absorption coefficient was obtained from testing the flat test sample using the ASTM E1050-98 tube impedance method. The use of Polyethylene (PE) powder as a backing for floor mats has a sound absorption coefficient with a rating of B (above 0.8) at a frequency of 3,000 Hz. While the sound absorption coefficient reaches the highest point of 0.99 at a frequency of 3,000 Hz. This is because the backing with Polyethylene (PE) powder material has porous holes. The micro surface is used as a layer of air space so that it can effectively reduce and increase the absorption of sound that occurs inside the vehicle when driving. The sound absorption coefficient of vehicle floor carpet increases significantly at low frequencies and slightly decreases at high frequencies
RANCANG BANGUN HOSE AND DUST COLLECTOR BRACKET DENGAN 3D PRINTER MATERIAL PETG FILAMENT UNTUK CNC ROUTER Suparno, Joko; Wijaya, Anugerah Bima; Halim, Dimas Ardiansyah; Ramadhan, Aly Rizki; Suminar, Ratih Ratna
Jurnal Vokasi Mekanika (VoMek) Vol 6 No 3 (2024): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v6i3.739

Abstract

The challenge of a CNC Router is the dust and small particles produced during the cutting process such as wood, aluminum or acrylic materials. These small particles can disturb the health of operators. 3D printing is a technology where materials are arranged layer by layer to produce three-dimensional products. PETG filament is a type of polymer that has a density of 1.38 g/cm3 and has the advantage of being weather resistant, not being damaged or losing color when exposed to UV light. PETG filament uses a printing temperature of 230°C-265°C. This bracket is designed to hold hoses and dust collector. The Bracket design can be installed on a CNC router machine without interrupting the cutting process or reducing the quality of the final result. The method used is Autodesk Inventor Professional 2023 student edition software for 3D design and UltiMaker Cura for the slicing process. This research resulted in a bracket design and prototype using a 3D printer. The bracket exhibits sufficient structural capability to hold the cooling hose and dust collector. There is a dimensional difference between the design measurements and the workpiece that has been made of 0.27 mm in the CNC Router head diameter and 0.1 mm in the hose diameter. This is due to the work tolerances and parameters used on the 3D printer machine. By implementing the Hose and Dust Collector Bracket, it is hoped that small particles can be reduced so that a clean and dust-free work environment can improve operator health and comfort.
The Entrepreneurship Training and Housewives’ Economic Independence: The Strategic Role of MSMEs and Socio-Economic Moderators Kasmo, Arief Bowo Prayoga; Riyanto, Setyo; Sukardiman, Diah Fistiani; Suparno, Joko
AMAR (Andalas Management Review) Vol. 9 No. 2 (2025)
Publisher : Management Institute Faculty of Economics Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/amar.9.2.35-50.2025

Abstract

Entrepreneurship training has been widely recognized as an effective strategy to enhance the economic empowerment of housewives, particularly in the context of Micro, Small, and Medium Enterprises (MSMEs). This study aims to examine the effect of entrepreneurship training on the economic independence of housewives, with MSME strategies as a mediating variable and socio-economic factors as a moderating variable. The research sample consisted of 133 housewives engaged in MSMEs and residing in Kembangan District. A quantitative approach using Structural Equation Modeling-Partial Least Squares (SEM-PLS) was employed to analyze both direct and indirect relationships among the variables. The results indicate that entrepreneurship training does not have a direct effect on economic independence. However, it significantly influences MSME strategies, which subsequently contribute positively to economic independence. This confirms the role of MSME strategies as an important mediator linking entrepreneurship training to economic outcomes. In addition, socio-economic factors were found to have a direct effect on economic independence, but they did not function effectively as moderating variables. These findings underscore that entrepreneurship training alone is insufficient to economically empower housewives. Its effectiveness depends on the implementation of appropriate MSME strategies. The study highlights the importance of strengthening MSME development as a strategic pathway to enhance the economic independence of housewives, while recognizing socio-economic conditions as direct determinants rather than moderating influences.
Co-Authors Adyan, Muhammad Ariq Andri W.H, Dwi Arief Bowo Prayoga Kasmo Diah Fistiani Sukardiman Dimas Ardiansyah Halim, Dimas Ardiansyah Joko Sumbogo, Yuliarto Prasetyawati, Erlina Ramadhan, Aly Rizki Riski, Kautzar Setyo Riyanto, Setyo Sumbogo, Yuliarto Joko Suminar, Ratih Ratna Widi Achmad Sukisno, Sulis Wijaya, Anugerah Bima