Replacement Shells for M870 Dartblaster

This is a shell that works with the M870 dartblaster found in chinese online stores. A shell costs about 0,225€ instead of buying one for 2€.

They work like a charm. Took a while to find the balance between being ejected and having a good amount of power, but I found the sweet spot.

Print standing upright, no supports.
If you want, change the filament color at 12mm.
I use layer height 0,2mm.
I usually print 9 in one go.
Just slide along the inner hole with a nail scissor to remove loose parts should they appear.
I use PLA, PETG might work as well.


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I also provide shells for the UDL Winchester:
https://www.thingiverse.com/thing:5618578

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Also see my Dart Cutter for the right length darts:
https://www.thingiverse.com/thing:5480927