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- motor versa planetary gearbox needs fasteners - fasteners missing from model.
- heavy weight to tie down the base of the arm prototype
- point of failure - the bearing, high moment on the bearing
- point of failure - the plate on the bearing - thicker plate?
- put bearing to support other side of versa planetary gearbox shaft
- add encoder features
- Add belt
- figure out weight issues
- make the turntables able to rotate
- hex shaft collars?
A2:
- main point of failure , if the plastic 3d printed part yields
- figure out absurd weight
- kerf correction
- reduce shaft size
- connect the gearbox standoffs to make 1 part not 2
- servicing of motor will be tricky/rotate gearbox orientation
A3 and A4:
- hex shaft collar for small pulley?
- Change large pulley attachment method - ideally using a wheel hub
- Add a way to secure bearings in the main block
- Evaluate maximum thrust on bearings and spec out proper bearings
- Add all fasteners
- Separate middle block in 3D printed parts
- Determine if circlips can withstand the thrust load seen by the arm
- Evaluate if we can use shaft collars
- Switch 3D printed shafts for metal shafts
- Load, stress and deflection analysis on the aluminum tubing
- check belt spacing
- Add encoders
- kerf correction
- Check weight
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