{"id":16528,"date":"2022-10-26T23:14:41","date_gmt":"2022-10-27T03:14:41","guid":{"rendered":"https:\/\/courses.ideate.cmu.edu\/60-223\/f2022\/work\/?p=16528"},"modified":"2022-10-26T23:42:56","modified_gmt":"2022-10-27T03:42:56","slug":"mini-controller","status":"publish","type":"post","link":"https:\/\/courses.ideate.cmu.edu\/60-223\/f2022\/work\/mini-controller\/","title":{"rendered":"MINI Controller"},"content":{"rendered":"

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By Harry Schneider<\/p>\n

Description:<\/h4>\n

The MINI controller is a compact and portable MIDI controller which allows you to produce music more efficiently.<\/p>\n

Discussion:<\/h4>\n

Overall, I am very happy with how this project turned out. I am very pleased with the build quality despite it being my first time 3D printing. Also I think the size and overall durability is great. My goal was to make something that, if manufactured, I would personally purchase and use. Maybe I am just overly critical but I would have liked to go smaller if possible. The current size is 3 x 3 inches but I would love if it could fit comfortably in my pocket. The current size was already a challenge for me. It was very hard to fit all of the electronics inside especially with the usb input attachment. This attachment came with a large cable that took up a lot of space on the inside. In the future I would like to make another version which would have a USB type C input instead of type B. Type C is much smaller and more compatible with current technology. Also I would make it around 2 inches by 2 inches instead of 3 inches. In addition I would also make it slimmer. I found the 3D printing process to be really fun. It was very difficult designing everything in cad but with the help of my teacher I was able to actualize the case for the midi controller.
\nI was very happy with the feedback from my critique. However I was told to consider labeling the functions of the potentiometers. I understand how this makes sense but in reality, the assignments of the knobs change depending on how I intend to use them. Also it was suggested that I could use a micro Arduino if I wanted to go smaller. I will definitely use a smaller Arduino in the future. I think this was really great feedback.<\/p>\n

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Photos and Videos<\/h3>\n

Process<\/p>\n

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This is the initial working prototype. At this point the code was working properly and all of the components where working on the breadboard. At this point I was designing the case where I needed to fit these components and I had to measure everything in order to create an accurate 3D model.<\/p><\/div>\n

3D Modeling<\/p>\n

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After assembling the prototype, I created the case in cad, a 2 piece design with a bottom plate with screw holes as well as a 3D printed shell.<\/p><\/div>\n

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These are the electronics soldered together in a way to maximize internal space<\/p><\/div>\n

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This image shows how everything fits together in the 3D printed case. This part was a challenge and I was worried about everything fitting and at a point I was considering remaking the 3d model by making it bigger but I really wanted to keep it as small as possible. I decided to re-solder everything in a way that I could fit everything. I decided to use a flexible protoboard which I cut down in size to maximize as much space as possible<\/p><\/div>\n

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