Hack Pack IR Turret Heavy Arms upgrade (WIP)

who needs accuracy when you have quantity
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updated June 3, 2024

Description

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IR Turret “Heavy Arms” Mod - Crunch Labs Hack Pack 001


This is a work in progress (print at your own risk)

This is a 3D-printed gear system to use the existing ROLL servo to rotate 4 other barrels to fire 4 times the ammo. no coding changes required this is purely a physical mod. 


I have a stock ender printing at very low speeds.

3D Printing Info

  • Print Time: Approximately 34 hours (including barrels), 19 hours without barrels 
  • Material: PLA/PETG
  • Supports: Add supports for barrel-gears
  • Infill: 15%
  • Layer Height: 0.2 mm
  • Perimeters: 4 mm

Instructions:

  1. add the 4 small-gears to the 4 closest mounts and secure them in place with the smol-shafts and caps (might need some super glue in the cap if it doesnt stay on.
  2. attach the 4 barrel-gears the same way using the big-shafts and caps
  3. remove the #3 Roll servo motor from the build and unscrew the orange default gear.
  4. install the servo into the new plate in the same orientation and screw the driver-gear onto the servo motor.
  5. attach the barrels to the barrel-gears
  6. attach the barrel caps (download from crunchlab's thingiverse) to the barrels (make sure you align the prongs
  7. should be good to go.

 

Issues:

  • v1 plate's firing mechanism sometimes jams against the darts and not fire
  • the barrel closest to the pitch motor will have darts jam there as well
  • very top heavy, might need stronger pitch motor
  • reloading darts is very very challenging

 

Additional Notes:
I tried looking for paper tubes at Michaels and Staples near me but couldnt find the right size. so i modeled the barrel for mine. if you can find paper tubes i would recommend it to reduce weight.

You can download the barrel cap from Crunchlab's thingiverse: https://www.thingiverse.com/thing:6592454/files 

The barrel-gear is remixed from Crunchlab's Barrel_nock_cap_v1.stl


For additional darts check out these stls by members of the hack pack community:


Update: plate-v2 introduces a ramp to hopefully push the darts off for firing. 

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The author marked this model as their own original creation.

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