Altered Antdroid parts

thingiverse

My printer's 180mm round print bed isn't quite large enough for some of the standard Antdroid parts, so I adapted them on my own. These were slightly too long, so I trimmed the cosmetic top part from the model in Meshmixer to get a better fit. I recreated the top and bottom plates as SVGs to cut from 3mm cast acrylic on my desktop CNC router. They were drawn in OnShape (matching the original shape and servo mounting positions) before importing into Inkscape, tidying, and exporting as SVG. The body separator was a problem because the original push-in ones wouldn't work with the new 3mm perspex plates, so I created some new ones to attach with M3 machine screws. The design has been updated to reflect the positioning of servo arms on top plate - they should be inside. I also created a small neck which attaches to the top plate with a couple of M3 machine screws and nyloc nuts. It accepts the standard Antdroid camera mount without any issues. My Raspberry Pi camera didn't fit the existing camera mount, so I designed an adaptor plate that can be cut from fibreglass sheet or 3mm cast acrylic sheet used for the body plates. The bearing retainer was a challenge because the specified 4x8x4 bearings didn't fit the femur properly. To solve this issue, I made these retainer cups to hold them rather than buying new bearings. If you encounter the same problem as I did, print a couple of these per leg, glue them in place, and press in the bearings. The OnShape doc used for the body plates, body separators, and camera neck is available here: https://cad.onshape.com/documents/d2dcaa54893a61787c6f1bbf/w/f8e243d51c74b654bc73bc32/e/fe8624972b31a44e84f7f911