"Potbelly" Sci-Fi Blaster Prop

A sci-fi blaster prop. Compatible with AR-15 pistol grips.
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updated August 13, 2023

Description

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A sci-fi blaster. The grip attachment is compatible with AR-15 pistol grips. 

The main body can be replaced with an air mattress pump. View the attached photos for markings and labels of the air pump I used for my build.

Print directions:

  • Most parts can be printed 3 perimeters, without supports or infill if desired.
  • Print the Body and Bits with infill to support the top surface.
  • Do not print the clamp with many perimeters or high infill as it must flex.
  • Print the pins 0.1-0.2mm smaller if you have fit issues.

Assembly directions:

  • Place the clamp around the body with the cutouts aligned.
  • Thread a zip tie through the holes at the open end of the clamp. Tighten the zip tie until the pump is secure.
  • Place the retention arm into its socket with the top vent of the body inside the ring of the retention arm.
  • Press or gently hammer the retention arm pin to attach the arm to the clamp.
  • Install the grip with either an AR-15 grip screw or the printed rectangular pin.
  • Use 2x M3x8mm screw to attach the barrel to the body.

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Model origin

The author marked this model as their own original creation.

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