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Compact Dart Launcher

Creation's quality: 5.0/5 (1 vote)
Evaluation of members on the printability, utility, level of detail, etc.

3D model description


The goal of this project was to make a small compact dart launching mechanism that will be the basis for a parlor pistol in the future. As always, I aim to avoid rafting and support.

There are 3 types of triggers to choose from, here is the lowdown on each.

  • V1: Original trigger, most compact, tough to use. Photo 2 shows it.
  • V1F: Most accurate of the bunch, but bulky. Recommended! Photo 3 shows it.
  • V1G: The newest and best of both worlds. My favorite! Featured in cover photo.

You can see a demonstration here:

I have printed this and the range is quite good. I would estimate at 40 feet. I am unsure of FPS, but the gun will for sure poke out your eye so I recommend eye protection. Front sight is not correct height, and rear sight will be added if I get around to it, so for now the gun shoots low if you utilize the sight now.

Trigger is not a classic trigger where the user pulls back, instead, you push your finger forward to fire the gun. V1F trigger is a forward trigger that is easier to use, but prevents the gun from being as compact as it could be. V1F trigger is not pictured.

To load the gun, pull back the bolt, hold, and then push the trigger upwards towards the receiver. Next load projectile, and fire as stated above.

Pictured version is V1 release.

Parts List

  • Receiver
  • Grip
  • Trigger (V1 or V1F)
  • Bolt
  • Darts (Pack of 4)

Hardware (all available from McMaster-Carr):

Read assembly instructions for more details.


Not for use on people. You will damage someone's ability to see if aim for the face. Do not use as self defense device. Use only as a toy.


The bolt could be eliminated, however, the bolt will at some point hold the firing pin for the parlor pistol design, so it is included. Additionally, more than just my darts can be used as the darts are not the catch, the bolt is.

Change List

v1: Initial release

3D printing settings

Material used: ABS (but PLA may work!)

Print all parts at 30% infil, 1 or 2 shells, depending on preference. 2 recommended. No rafting or support needed. All parts are correctly oriented for printing.

To assemble, insert bolt into receiver, push to front. Insert spring. Insert 50mm screw from top, and push through. Next attach the grip to the receiver. Push 50mm screw all the way through the grip, and cap with M3 nut. Next add the trigger to the front of the gun, and finally put a 20mm screw through the front hole, cap with nut.

  • 3D file format: STL
  • Publication date: 2018/12/04 at 16:15





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