Ri3D 1.0 Boulder Launcher Tutorial and CAD

The video and attached CAD is a tutorial for Ri3D 1.0’s 2016 Boulder Launcher. There are a few missing details, namely the hardware and backing. There are also a few minor differences, most significantly that we used “Mini-Cims” but the CAD shows regular CIMs motors. I’ll update the models as I have time available but they should be good enough to assist with your design and prototyping as is.

The design is fairly modular and you should be able to adjust it as needed.

The only custom parts in our shooter are the long hex shafts and standoffs which we cut to length and the “U Channel” sheet metal backing which the ball rolls against. All other parts are available through AndyMark.

Please enjoy and feel free to comment on the video if you have any questions.

Preliminary BOM (Missing some hardware and motor spacers):

  1. Modulox Single Slot Plates QTY 3
  2. 32 tooth flex hub gear QTY 2
  3. 28 tooth flex hub gear QTY 2
  4. 56 tooth flex hub gear QTY 2 (48 or 50 tooth would also probably be fine)
  5. 1/2″Hex Bore Flex Hub QTY 3
  6. 8mm Bore 2mm Key Bore Flex Hub QTY 2
  7. 56 tooth flex hub gear QTY 2
  8. Modulox Bearing Block QTY 9
  9. Modulox Back Block QTY 6
  10. Modulox Thru Block QTY 3
  11. Modulox CIM Motor Block QTY 6
  12. 12 Tooth CIM Pinion Gear QTY 1
  13. Modulox Channel QTY 1
  14. 1/2″ Hex Shaft Collars QTY 15
  15. Modulox Rail Spacers QTY 12
  16. 1/2″ hex id Flanged, Shielded Ball Bearing QTY 9
  17. 4″ Hi Grip Wheels QTY 4
  18. 6″ Hi Grip Wheels QTY 2
  19. Long Hex Shaft ~24″ (cut to length as needed)
  20. Long Standoffs for assembly (We like “Churros” Cut to length as needed)
  21. Mini CIM motors QTY 3
  22. Assorted Hardware

An easier way to purchase (but you’ll have some left over parts to play with): 

  1. Modulox Lunchbox Gearbox Kits QTY 3
  2. 4″ Hi Grip Wheels QTY 4
  3. 6″ Hi Grip Wheels QTY 2
  4. 32 tooth flex hub gear QTY 2
  5. Modulox Channel QTY 1
  6. Long Hex Shaft ~24″ (cut to length as needed)
  7. Long Standoffs for assembly (We like “Churros” Cut to length as needed)
  8. Mini CIM motors QTY 3
  9. 1/2″ hex id Flanged, Shielded Ball Bearing QTY 3

Download the current CAD here:

CAD download link (right click – save as)

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