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2022-04-02 updated 3D print files for feeders

A project log for FED0

bare bones open source pellet dispenser

brian-m-sweisBrian M. Sweis 04/02/2022 at 16:300 Comments

Added 5 new files:

  1. new hopper body without a chute (to prevent jamming when sliding down to the receptacle), smoother surface for contact with the disk, wide mouth, larger debris vent. Note this version removed the photointerrupter slots, but this can be easily added back on in future designs if needed. 
  2. new trap door that fits this body - it is anvil shaped / tapered in the front to prevent catching we sometimes experienced when the movement initiates or returns to rest. This works well but still needs to be optimized. Considering a horizontal orientation of the servo instead that spins a wedge trap door open vs closed instead of this vertical lever approach. Note from a bird's eye view, a goal to maintain is no "dark" spots emerging when the trap door is open that could throw off animal video tracking. Current design with vertical lever and a large enough trap door platform handles this well (i.e., the hole still appears white when trap door is open from a top down view).
  3. new catch basin that is sturdier and has a T connecter for more secure attachment
  4. disk with spokes developed by Lex
  5. a slightly modified thicker disk that may help prevent warping (noticing warping may be an issue with white resin but may not be an issue with clear resin - testing this again shortly).
     

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