2021-06-15 Meeting Minutes - Arm Design Review

Goals

• CAD updates
• Design review
• The bay is open!!!!!!!!

Update & Action Items

New Tasks

General Notes

Full design to be completed by June 29th (CAD, BOM)

→ Build and assembly proceeds onwards

A1

• Add encoders to design
• Adjust table width to represent the distance from the front of the wheels that we would expect
• Reduce bolt length between the bearing 3D printed parts
• Constrain the vertical motion of the shaft
• Flip the versahub to fit inside the pulley
• verify the distance between the pulleys to select the correct belt

A2

• Do stress analysis on A2 to A3 plates
• Add tensioners
• Add that fastener and stop being cheap
• Add encoder to A3 small pulley

A3-A4

• reduce shaft lengths for A3 and A4
• switch the A3 shaft for a hex shaft and all mating parts
• change the A3 bracket for a plate and hex shaft
• center the black block in between the 2 plates
• Move the pulley on motor on top closer to the gearbox (extend the back plate and fasten the motor to it
• Remove pulley from A4
• Replace bearings with bushings on A4
• Add fasteners
• Add nut pockets
• Add joining method from A4 to A5 and A6

A5-A6

• Add spacers to the gearbox in the box tube
• Flip all flange bearings as well as shorten
• Add belt tensionners
• Add kerf correction