Surface-Mount Manual Pick and Place Workstation
thingiverse
This is a manual pick-and-place platform designed for assembling surface-mount components on circuit boards. It's built with 9.5mm ball bearings, unlike an existing design on Thingiverse that uses rails. The goal is to simplify assembly and utilize spare 9.5mm ball bearings. Parts to Print: * 2x Tongue Ends (optionally "side-screw", see below) * 2x Groove Ends * ?x Middle (print multiples of two depending on desired platform width, each pair adds 100mm) Parts Not to Print (a challenge, but you know what I mean): * 2x 10mm Threaded Rod (length determined by desired platform width) * 8x 10mm Nuts * 4x 5mm Bolts 30mm long (nearest Imperial equivalent used) * ?x 9.5mm Ball Bearings (ten per length printed) * Block-o-Wood (dimensions depend on platform width and palm room, should be hard and weighty, could use steel instead) You can scale the model up or down to use different-sized ball bearings, possibly using washers on bolts and threaded rods if necessary. The initial print didn't have enough overhang above the ball bearings, causing them to escape by popping out onto the platform as I slid back and forth. Eventually, an equilibrium was reached where there weren't enough pushing against each other to force any more out, which is why the grooves aren't full of them in the pictures. The uploaded models have this problem fixed, with enough overhang that ball bearings can only be inserted or removed from the ends. One print of a later version failed, like about six of my other prints while trying to assemble it. The print head likes to knock the print off towards the end of printing, but I'm working on a solution for this issue. Until then, I'll leave this marked as "work in progress," but it should work fine. In the pictures, one end is held down by wing nuts on the threaded rod because the print failed before reaching the bolt hole. The reason for the "side-screw" version is that I realized late that there wasn't enough build height to print the normal tongue end on my Makerbot Cupcake, so I added a lump on the side for the bolt to go through instead. I didn't do a "side-screw" version of the groove end because I prefer having the bolt on the end, but it would probably be easy enough to do upon request. The models for the parts trays shown in the pictures will be uploaded soon as well.
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