Base support for original EEZYbotARM

thingiverse

Having built daGHIZmo's original EEZYbotARM, I found that the rotating platform and "basement" had too much clearance for my build. Although this wasn't intended to lift a lot of weight, the wobbly nature made the end effector's positioning unreliable. Having already completed the entire unit, I considered redesigning the basement part but then came up with a quicker and simpler solution. This solution is a part that simply slips over the basement part, creating a more stable interface. To reduce friction, I smoothed the top surface using fine sandpaper and applied a bit of synthetic grease, similar to what's used for spark plug boots on a car. Printer Settings Printer Brand: MakerBot Printer: MakerBot Replicator (5th Generation) Rafts: Yes Supports: No Resolution: 0.2mm Infill: 25% Notes: Print the upper face downwards for no supports. If you print against a smooth bed, like glass, then a raft is probably unnecessary but on my desktop MakerBot Replicator 5th gen I used this option. Post-Printing After printing, make sure to confirm that the part is not warped. Smooth the top surface if necessary using fine sandpaper. If your robot is already assembled, remove the basement part and slip the adapter over the top of it. It should slide on tight but without much force. I added some synthetic grease to the upper surface before installation (it's clear so it doesn't show in the picture). Reattach the top of the robot and check to be sure it doesn't bind when it rotates. Your clearances may be different from mine, so you may need to adjust things by removing more material from the mating surfaces. How I Designed This I designed this part using Cubify Invent (which some sources claim is actually Alibre Design in disguise). It was a 5-minute CAD exercise given the part's simple geometry. Measurements were taken from the printed model and then clearance allowances were made to make assembly easy.