Production version of the layout
Production version of the layout
Poka Akop ArtWork for Alexey Rumin
Scope of work:
The main objective was to design and fabricate a mechanical solution for the paw, enabling it to move 'in' and 'out' of the body.
The constraint was an extremely tight space to accommodate all components, with the total height limited to 18mm (less than 3/4 inch).
The selection of the electric motor was based on this constraint, leading to the discovery that the best fit was salvaged from an old CD-drive motor.
Based on the motor's characteristics, I calculated the required gear ratio and determined the number of gears needed.
Subsequently, I designed a complete gear reducer system, including all necessary gears and a slider crank linkage.
The fabrication method primarily involved 3D printing, which also influenced the design due to the resolution limitations of the 3D printer.
Extremely fine gears were not feasible to print, necessitating at least one additional gear to achieve the required gear ratio.
Software: Autodesk Fusion 360
3D printer: Prusa I3mk3
Number of total gears: 4
Material: PET-g
Time spent: ~7 hours
Initial specification of required movement
Initial mechanical concept
First version of the layout
Second version of layout
Selected drive
Gears
