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Micro Pistol Crossbow (Reverse Compound)  3D Printer File Image 1
Micro Pistol Crossbow (Reverse Compound)  3D Printer File Image 2
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Micro Pistol Crossbow (Reverse Compound)

laisch avatarlaisch

September 25, 2023

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Description

Micro Reverse Compound Crossbow

Really fun for shooting on a magnetic dart plate.

The parts are printed in PLA and PETG at 0.2mm layer height.

Additional Hardware:

  • 2 mm wire (I used a 2mm stainless steel tig welding rod)
  • magnet D:6mm H:3mm
  • string (I used a kevlar line from a paraglider)

Print Settings:

  • Pully_Big: PLA 0.2mm/ 100% Infill / 2x
  • Pully_small: PLA 0.2mm/ 100% Infill / 2x
  • Cockinghandle: PLA 0.2mm/ 100% Infill
  • cockingsled: PLA 0.2mm/ 100% Infill
  • handle_left: PLA 0.2mm/ 25% Infill
  • handle_right: PLA 0.2mm/ 25% Infill
  • trigger: PETG 0.2mm/ 100% Infill
  • limb_right: PETG 0.2mm/ 100% Infill
  • limb_left: PETG 0.2mm/ 100% Infill
  • handle_body_right: PLA 0.2mm/ 25% Infill
  • handle_body_left: PLA 0.2mm/ 25% Infill
  • trigger_roll: PLA 0.2mm/ 100% Infill
  • mainbody: PLA 0.2mm/ 25% Infill
  • boltholder: PETG 0.2mm/ 100% Infill
  • cocking_bracket: PLA 0.2mm/ 25% Infill
  • magneticbolt: PLA 0.2mm/ 100% Infill /supports on

Post Printing:

  1. cut all the 2mm wire to the desired length
    you will need:
    - 2x 20mm (for the pullys in the limbs)
    - 2x 10mm (for the smaller pullys on the main body)
    - 2x 95m (for the sliding cocking mechanism)
  2. make sure all pullys run smoth on the wire. if not, use a 2mm drill to widen the holes a little
  3. press fit the 2 small wirerods into the mainbody (use a hammer or a vise)
  4. press fit the 2 middle wirerods into the limbs with the pullys in the middle
  5. press fit the long wirerods into the cocking sled
  6. put the assemblly into the cocking bracket and make sure the wirerods run smoth i (drill to widen if not)
  7. assemble the cocking handle (press fit)
  8. superglue handle_right and handle_left to their handle bodys
  9. put the trigger and the trigger_roll into the handle_Body_left and close it with the handle_body_right
  10. put the whole assembly through the mainbody (press fit) and make sure the top is planar
  11. Attach the limbs to the mainbody and assemble the bowstring like you see on the pictures. The limbs are really lose, but once the string is tight they will hold.
  12. put the cockingsled assembly in to the guide and pressfit the cockingbracket onto the whole assembly
  13. superglue the boltholder to the cockingbracket
  14. glue the magnet into the magneticbolt
  15. Cock it and have fun ;)

 

If you like this model you may have a look at my other flying toys too

Micro Sailplane

Geared Propeller Launcher

Flying Bat

 

License:

BY-NC

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