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All Journal Scientific Journal of Mechanical Engineering Kinematika METAL : Jurnal Sistem Mekanik dan Termal Jurnal Teknologi Manufaktur dan Industri
Nurhidayanti
Politeknik Negeri Ujung Pandang
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Experimental Modelling of Gripper Arm Using CAD Fusion 360 and Fused Deposition Modelling 3D Printing Process of Polymer Nur, Nurhidayanti; Ishak, Ishak; Bayu Wicaksono, Ariawan
Jurnal Tematis (Teknologi, Manufaktur dan Industri) Vol 6, No 2 (2024): JURNAL TEMATIS (TEKNOLOGI, MANUFAKTUR DAN INDUSTRI)
Publisher : Politeknik Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The use of Fusion 360 CAD technology and Fused Deposition Modelling (FDM) 3D printing process enables the development of complex and efficient gripper arm designs. This study explores the effect of mesh and infill density parameters on the print time, weight, and strength of parts printed using ABS material. The results show that a 40% mesh with 40% infill is optimal for lightweight applications due to material and time efficiency. In contrast, a 60% mesh with 80% infill is more suitable for heavy loads due to higher strength. With this design approach, components that meet the needs of robotics-based industries are produced, reinforcing the contribution of FDM technology in modern manufacturing.
ANALISIS PENGARUH KETEBALAN LAPISAN TERHADAP KEKASARAN PERMUKAAN PRODUK CETAK PLA MENGGUNAKAN TEKNOLOGI FDM UNTUK INDUSTRI MANUFAKTUR Nurhidayanti; Lukmanul Hakim Arma; Rusdi Nur
Scientific Journal of Mechanical Engineering Kinematika Vol 10 No 1 (2025): SJME Kinematika Juni 2025
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v10i1.737

Abstract

Additive manufacturing (AM), commonly known as 3D printing, uses various methods, including Fused Deposition Modeling (FDM). This study focuses on the surface roughness performance of 3D-printed propellers using FDM with PLA material. This study aims to determine the optimal layer thickness to achieve the best surface quality in additive manufacturing. Surface roughness was measured using the arithmetic mean (Ra) and measured at the propeller's centre, base, and endpoints with an Olympus laser scanning microscope. Experiments were conducted with layer thicknesses of 0.1 mm, 0.2 mm, and 0.3 mm, while keeping other printing parameters constant, namely printing temperature at 210°C, printing speed at 50%, nozzle diameter at 0.4 mm, bed temperature at 70°C, infill pattern lines, infill density at 100%, edge support type, wall thickness at 0.8 mm, and eSUN material diameter at 1.75 mm. The results show that a layer thickness of 0.1 mm produces the highest surface quality and dimensional accuracy at all tested points on the propeller, but affects the printing time. These results underline the important role of layer thickness in optimizing the surface finish and structural integrity of 3D printed components in additive manufacturing processes
Analysis of Computational Fluid Dynamics on 3D Printing Propeller Design using Thermoplastic Material Nurhidayanti; Muhammad Ikhsan; Muh. Abdillah
METAL: Jurnal Sistem Mekanik dan Termal Vol. 9 No. 2 (2025): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/metal.9.2.122-129.2025

Abstract

The propeller is essential in generating thrust for various applications, from UAVS to ship propulsion and industrial ventilation. Propeller performance is greatly influenced by the characteristics of the fluid flow generated by the interaction between the propeller blades and the surrounding medium. 3D printing technology offers design flexibility and cost efficiency in propeller manufacturing. This study aims to analyse the effect of rotational speed variations on the performance of 3d printed propeller designs made of PLA. Simulation of Computational Fluid Dynamics (CFD) was used to evaluate the fluid flow velocity distribution, flow pattern, and flow type transition around the propeller. The results showed that the variation of rotational speed affects the fluid flow type, with low rotational speed producing laminar flow and high rotational speed producing transitional flow. This understanding is important for the optimisation of PLA 3D printing propeller design in improving efficiency and reducing noise.
Innovation of a Shallot Peeling Machine Based on Appropriate Local Resource Technology to Improve the Production Efficiency of Household Industries Abdul Salam; Nurhidayanti
METAL: Jurnal Sistem Mekanik dan Termal Vol. 10 No. 1 (2026): METAL : Jurnal Sistem Mekanik dan Termal
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/metal.10.1.28-35.2026

Abstract

Household industries engaged in shallot processing in Kapasa Raya, Makassar, face productivity constraints due to manual peeling methods that are time-consuming and labour-intensive. To address these challenges, an appropriate technology innovation was introduced through the design and implementation of a shallot peeling machine that is simple, ergonomic, and tailored to local needs. The research involved several stages, including field surveys, design using Fusion 360 software, fabrication, assembly, and performance testing. The test results indicated that the optimal parameter combination machine rotation speed of 112 rpm, a capacity of 2.5 kg, and peeling duration of 2 minutes with hot water soaking, was able to achieve an efficiency of up to 37.5 kg/hour. This innovation not only accelerates the peeling process and reduces operator fatigue but also maintains the visual quality of the shallots, thereby enhancing the competitiveness of MSME products. The adoption of this machine has proven to provide significant technical as well as socio-economic impacts for small-scale business operators.
Investigating the Influence of Alumina Additive Concentrations on specific Fuel Consumption and Exhaust Opacity in Biodiesel Fuel Muh Abdillah; Nurhidayanti; Ariawan Bayu Wicaksono; Ishak
METAL: Jurnal Sistem Mekanik dan Termal Vol. 9 No. 2 (2025): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/metal.9.2.117-121.2025

Abstract

This study investigates the effect of alumina (Al2O3) nanoparticle additives on the performance and emission characteristics of B30 biodiesel fuel under various engine loads. Fuel samples of pure B30 and B30 blended with Al2O3 at concentrations of 30, 50, 70, and 90 ppm were tested using a 3.5 kW diesel engine. The evaluation focused on specific fuel consumption (SFC), and exhaust opacity at loads of 1, 5, and 9 kg. The results show that SFC generally decreased with increasing load, with the lowest values achieved at 90 ppm, indicating improved combustion efficiency. In terms of emissions, the addition of Al2O3 at 30–50 ppm significantly reduced opacity, with 50 ppm showing the greatest effect, particularly at high loads. However, higher concentrations such as 90 ppm tended to increase opacity due to nanoparticle agglomeration, which hinders homogeneous mixing and combustion. Overall, the optimal performance improvement was observed at 50 ppm for emission reduction and at 90 ppm for fuel efficiency, demonstrating the potential of Al2O3 nanoparticles as effective additives in biodiesel applications.
Development of Control System for TU-2A CNC Machine Ariawan Bayu Wicaksono; Lewi; Muh. Abdillah; Nurhidayanti; Ishak
METAL: Jurnal Sistem Mekanik dan Termal Vol. 10 No. 1 (2026): METAL : Jurnal Sistem Mekanik dan Termal
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/metal.10.1.43-54.2026

Abstract

This study aims to design and develop an electronic control system for the TU-2A CNC machine to improve its performance, simplify the programming process, and facilitate machine maintenance and repair procedures. The method used is retrofitting the EMCO TU-2A CNC machine by replacing the old electronic components with more modern and affordable components, without compromising the machine's precision. Calibration is carried out to ensure the accuracy of the machine's movement, while machine testing is conducted by machining workpieces made of teflon (PTFE) and aluminum. The results of the study indicate that after the development and maintenance, the CNC TU-2A machine showed improvements in precision and ease of use. The machine's error remains within the tolerance limit, approximately 0.01 to 0.02 mm, indicating that the calibration was successful. The conclusion of this study is that the development of the new electronic control system has made the CNC TU-2A machine more efficient and easier to maintain, making it more suitable for use in vocational education.
Co-Authors Abdul Salam Ariawan Bayu Wicaksono Ishak Ishak Ishak Lewi Lukmanul Hakim Arma Muh Abdillah Muh. Abdillah Muhammad Ikhsan Rusdi Nur