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Cartridge for UMAREX HDS 68

Creation's quality: 5.0/5 (2 votes)
Evaluation of members on the printability, utility, level of detail, etc.

3D model description

The UMAREX HDS 68 defence rifle uses a Co2 sparclette and can fire 2 .68 calibre rubber bullets (or Paintball) with a power of 16 Joules.

I created this cartridge to replace that rubber bullet with another projectile.

It is made up of 3 elements:

  • the base (to be printed in 3D)

  • the lid (to be printed in 3D) which closes the cartridge after loading the ammunition into the cartridge

  • the case, a simple standard paper tube which is shaped on my calibration mandrel and glued with a simple white glue (the mandrel is also to be printed in 3d)

You can fill this cartridge with 6mm BB balls (a dozen for 3.33 gr), 4.5 mm steel balls, flour, pepper, salt etc ... knowing that the weight of an original rubber ball is 3 gr.

How to proceed :

  • 3D printing of caps, lids and sizing mandrel

  • Print a sheet of A4 paper with my file "print etuis_68.pdf".

  • Cut each of the future cases with a cutter and ruler.

  • Form each of these tubes on the mandrel and fix it with white glue (white glue tube style)

  • Glue each tube on a base with 1 or 2 dots of glue (I use "extra-strong" paper glue). To guide the case and not to damage it, I use the mandrel as a guide.

  • Fill the cartridge with balls

  • Seal with a lid + 2 dots of white school glue.

That's it, a cartridge is made!


When the shot is fired, the entire cartridge is expelled!


The use of these cartridges is much more dangerous to injure than the original rubber ball!

                   Here, in France, if your possible aggressor is injured, you risk criminal prosecution!

My other creations concerning the UMAREX HDS 68 :

  • Rocket:

  • Reusable cartridge :

  • Shoe cartridge for a diabolo .177 :

  • Balls:

To see all my other creations on this site (>500!), enter "oasisk" in the search window

3D printing settings

layer: 0.20

no edge, no support

filling: 100%.

  • 3D file format: PDF and STL
  • Last update: 2021/02/22 at 14:25
  • Publication date: 2020/06/21 at 16:27



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