Caliburn Mag-Fed Pump-Action Nerf Blaster
by captainslug, published
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CHANGE NOTE 08/11/17: Strengthened upper tab of SPREADER and slightly widened the height of the slots. Added web to STOCK_ALT2. Added chamfers to RAM2 to reduce potential for fractures.
ASSEMBLY INSTRUCTIONS: http://captainslug.com/nerf/Caliburn3DPAssembly.pdf
Blaster is compatible with FULL-LENGTH and Half-length dart magazines. It is also capable of loading 1 to 4 darts at a time by simply cycling the breech more than once per priming stroke.
The Caliburn is a Mag-Fed Pump-Action Homemade Nerf Blaster design released as an Open Source Non-Commercial license file set by Captain Slug (http://www.captainslug.com).
WARNING: This blaster MAY NOT BE SAFE FOR INDOOR PLAY. Even with the weaker spring, the o-ring removed, and firing full-length darts this blaster will easily shoot faster than 150+ fps. So keep this in mind as to where and when this blaster is used. It can and will produce welts at point-blank range.
You are welcome to and encouraged to modify the files in any way you want. The Majority of the parts can be printed with infill as low as 20% in PLA, but I would recommend printing in layers of 200 Micron or smaller.
The Following parts however ARE REQUIRED to be printed at 100% infill: Bolt1, P1, P2, P3b, Ram2, Sear, Spreader, TGuard2, and TriggerAlt.
This Blaster design is also offered in a version you can machine out of polycarbonate if you are interested in crafting one from scratch. The write-up and machining templates for that version are available at: http://captainslug.com/caliburn.html
Assembled Blasters and Blaster Kits are available for sale as commissioned items.
Hardware kits to allow you to assemble on you've printed yourself are restocked nearly every weekend.
All of the above are for sale on Etsy as well as eBay.
100% for some, 25% for most
None of the parts will require support material. P3b turns out ugly on some printers but will work with a little light sanding on its exterior. Some users have seen bed-warping in the sides of the Grip assembly, I'm not sure that it would really impact assembly much.
Post-Drilling of Through Holes
As covered in the instructions, all of the components of the grip MIGHT need some post-drilling of their through holes in order to fit 16ga or 1/16" weld rod pins. The need to do this depends on the accuracy of your specific printer, but I have toleranced the models to not require this step in my printer. Half of the components also include through holes for 10-32 threaded rods which will need to be checked for fit against those.
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Caliburn Mag-Fed Pump-Action Nerf Blaster by captainslug is licensed under the Creative Commons - Attribution - Non-Commercial - Share Alike license.
What does this mean?
- You must attribute (give credit) to the creator of this Thing.
- You must distribute Remixes under the same license as the original.
- Remixing or Changing this Thing is allowed.
- Commercial use is not allowed.
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