Scope Lecture Notes in Mechanical Engineering (LNME) publishes the latest developments in Mechanical Engineeringquickly, informally and with high quality. Original research reported in proceedings and post-proceedings represents the core of LNME. Volumes published in LNME embrace all aspects, sub elds and new challenges of mechanical engineering. Topics in the series include: -Engineering Design -Machinery and Machine Elements -Mechanical Structures and Stress Analysis -

Clubfoot is an abnormal foot as a congenital disability in which one or both feet appear rotated inward and downward. In some cases, the foot and leg sizes may be smaller compared to each other. Accordingly, there is a need for customized shoes designed for clubfoot patients who has difficulty in wearing regular shoes to carry out their daily activities. This study examines using computer-aided reverse engineering system technology to design and manufacture customized boots with specific sizes and shapes. Reverse engineering with a handy scan 3D scanning tool with a tolerance of 0.001 mm was implemented to obtain 3D mesh data of the patient’s clubfoot (male with 65 years). The Curve Base Surface Modeling method provided 3D-CAD drawings of the insole and shoe, the last models, precisely and following the size and shape of the patient’s foot. This CAD data could be appropriately transferred to CNC machines and PowerMill CAM software to obtain patterns of insole and shoe-last from EVA foam rubber and wood. Both ways were well fitted with leather by a shoemaker into a pair of customized clubfoot boots. The field boot-wearing test used feedback from the clubfoot patient wear-testers to assess the functionality and acceptability of the boot products. In this way, the club foot patient can able to perceive wearing comfortably and perfectly. In the field boot-wearing test, the patient could walk at a speed of 83.1% -91.7% faster (2 - 5 minutes/foot) than that when the patient wears the old boot design model. Significantly, the present approach may add knowledge theoretically and practically to use CARE system-based technology in treating clubfoot patients with the need for custom shoes.

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In this paper, the design of orthotic boots in the club foot patient is investigated concerning the optimum condition of cutting parameters using computer-aided manufacturing. 3D CAD model insole is obtained from the scanning process until the design phase using reverse innovative design method. 3D CAD Model insole is designed using curve Base Modeling. From this design, simulated optimization can be obtained from Computer-Aided Manufacturing (CAM). Optimal manufacturing time optimization is simulated on the CNC Milling machine with the Taguchi approach. Six selected parameters containing toolpath machining, feed rate, spindle speed, depth of cut, Cutter selection, and insole dimension size are of particular interest. It is found that the design layout L2736 gives the most optimal simulation manufacturing using toolpath strategy tep and shallow finishing with spindle speed 1500 rpm, STEPD down 3 mm, Step over 2 mm, and 2mm Cutter diameter, on the model tolerance size 0.75 mm.

The progress of the manufacturing industry is very dependent on the development of science and technology. The current industrial revolution 4.0 encourages people to think more creatively in developing their business units. The creative economy helps the government of the Republic of Indonesia to increase state revenue from the export of these manufactured industrial products to other countries. This is also supported by the habits of the Indonesian people who are consumptive to increase people's purchasing power of these products, one of which is ceramic products. The ceramic industry in Indonesia is currently growing rapidly and getting full support from the government to increase its competitive advantage so that it can compete with local and international ceramic products. Ceramic products, including textiles, tableware, and jewelry. One of the efforts to increase the added value of this product is the use of CAD / CAM artistic technology with a CNC machine. Ceramic designs by providing additional motifs with complex relief contours and distinctive cultural or regional characteristics can be added with the use of reliable artistic CAD software such as ArtCAM and Zbrush. The master prints of artistic patterned products with Indonesian batik reliefs are obtained using a CNC router machine with precise and accurate quality. Optimization of manufacturing so that the cutter trip on the CNC machine runs optimally is used Rhinoceros 4.0 software. Two optimal machining strategies, namely horizontal roughing and parallel engineering in the CAM software, are used by researchers to obtain the NC code and the optimal patterned jewelry ceramic product master. A CNC router machine with a capacity of 1.5 kWh with workbench 800 x 600 mm is used for the manufacturing process. The results showed that the application of this technology in the local ceramic industry was able to reduce the design and manufacturing time of jewelry ceramics about3-5 days faster. The total design work from the CAM simulation stage to the jewelry product master was 8.0 hours.