Hand Cranked Turntable for Photogrammetry

thingiverse

This is a redesign of https://www.thingiverse.com/thing:3723618. I completely remade every piece from the ground up. When I printed the original design I ran into a couple of issues that pushed me to make some changes to the design. 1. The legs attaching at 2 different place on the outside bearing actually cause the bearing to flex, changing the shape and cause the inner part of the bearing to rub the outer part. Changing to one attachment point of the legs removed this issue. 2. Printing the bearing as one whole unit caused 2 issues. The first is that for obvious reasons there was added friction because of the small bits where the outside and inside print overlapped. This was most likely due to printer or filament error. The second issue was that I wanted to be able to use anti-friction tape between the two parts of the bearings. In my adjustments the outer bearing is not split horizontally in half and a place to use screws to hold the two halves together have been added. 3. The original design used a type of clipping system where when joining two parts together one would have a type of clip mechanism that was supposed to click the two pieces in place. This would have been awesome, except that every one of them broke when I push them into place. So I replaced them with a washer and screw. 4. The hand crank was one of the places that used a clipping mechanism. To replace that mechanism I extended the "plumbing" piece that it attached to, and made it run all the way through the hand crank and the crank gear. This allowed a screw to be used in the plumbing along with a washer. 5. Washer have also been used to hold the plumbing in place as well as the top gear. Note when screwing the washers in place don't tighten them down very tight if they are used with a moving part or else you'll have difficulty using the moving part. I'm also not sure what size screws I used. My wife found some in the garage that were perfect for it.