Garuda - Garba Rujukan Digital

Martinus Bagus Wicaksono

Universitas Sanata Dharma, Yogyakarta

Author-ID : 6139945

Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering

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Optimization of 3D Printing Parameters Using the Taguchi Method to Improve Dimensional Precision Martinus Bagus Wicaksono; Felix Krisna Aji Nugraha
Jurnal Teknologi Vol. 12 No. 2 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

The combination of parameters in the product printing process with Polylactic Acid (PLA) material using the ANET ET4 PRO 3D printer is carried out to obtain optimal parameters to produce accurate dimensions in the printing process. The most popular type of 3D printer is the Fused Deposition Modeling (FDM) type, which uses melted plastic raw materials to form products. In the existing printing process, the accuracy of the dimension is the main problem owned by users of this 3D printer technology. Especially when these products have to be assembled into a mechanism. The resulting accuracy is greatly influenced by the selection of process parameters used during the printing process. The parameter optimization process using the Taguchi method was chosen because this method is very good at overcoming deviations from the target so that the best quality of the product can be achieved. The optimization process of this parameter will be carried out using a ring-shaped specimen with an outer diameter of 30 mm, an inner diameter of 20 mm, and a height of 20 mm. This deviation in the size of the inner diameter of the ring would be the reference for measuring the quality of the printed object. From the experiments, the most optimal level values for each factor were as follows: the Nozzle Temperature was 200 °C, the Bed Temperature was 62 °C, the Room Temperature was 34 °C, the Infill Percentage was 40%, the Layer Height was 0.25 mm, the Printing Speed was 20 mm⁄s.

Perancangan Prototipe Alat Bermain Belajar Braille Low Cost Berbasis Mikrokontroler Arduino Sensor RFID Bertha Bintari; Martinus Bagus Wicaksono
Jurnal Teknologi Vol. 12 No. 2 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Blind children have limited ability to read, so the introduction of the ability to read and write using braille is very important. They have to learn to recognizing braille letters, then arranging letters to form syllables and finally a word. Learning about the concept of reading needs a tool that makes it easy and fun, then children will learn while playing. The design of the device braille set is intended as a learning tool for blind children to introduce and learn to read braille. This system uses an RFID (Radio Frequency Identification) MFRC522 sensor programmed by Arduino as a microcontroller. The code as a signal in the RFID tag card is read by the RFID reader. RFID tag cards are equipped with a layer on the surface of the card marked with a braille symbol. When children recognize the braille symbols on cards, they can assemble the cards into a word. The word will then be read by the device and audible so that the children hear the words they have composed. The components of this learning tool to read braille use an RFID reader component, a mini MP3 player module, Arduino, as a microcontroller. The power supply uses a 9 volt battery. DC motor drive and wheels to walk on the scrabble track. The material for the card coaster casing uses acrylic material. The track frame uses aluminium profiles. Overall, the cost of making braille reading learning tools with the implementation of RFID technology is cheap and affordable.

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