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Plunger tube for Ontos — image 1

Plunger tube for Ontos

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Referenced SillyButts Plunger tube design to create a variant for the Ontos.

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Model information

Category
Outdoor Toys
License
Creative Commons — Attribution — Noncommercial — Share Alike

Referenced SillyButts Plunger tube design to create a variant for the Ontos.  150mm long and OD of 35mm ID (with the plastic insert) is 32mm. Works great! 

I have tested it and barely noticed a drop in FPS compared to the aluminum tube. 

I would print the tube at a .28 layer height for strength and speed of print -but you don't have to.

For the insert, make sure its .20 layer height, so it ends up being .40mm thick.  Also print on a SMOOTH plate, as this is what the rubber o-ring will be riding on.  Smooth is key!

To assemble, Roll up the insert with the smooth side facing in, insert it in the tube.  Lube up with a bunch of lube. 

I have included the step file.  This is my first time designing something like this, so let me know if i can make any changes! Also report back to let me know if you are using it and it works for you too.

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