'Crush' Buck Ram
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A double o'ring ram for the Crush.
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Model information
- Source
- Printables
- Category
- Outdoor Sports
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
This is the best ram I have used so far in my Crush. I get 27 seconds of seal when paired with the TC Plunger. It also solves the dart chipping issue if you printed my angled talon lower. The ram was based of the metric Rush ram so its probably compatible with the rush too.
Hardware changes:
You might be able to get away with the old ram rings but this particular rone was designed for two 9.5x12.7mm o'rings as I had a lot on hand. you will need two 9.5x12.7mm o'rings. I also used a -123 x'ring in the base for my 27sec result. -123 o'rings should work too but your seal might change a little.
If 9.5x12.7m o rings are to hard to find for you American dudes, leave a comment with the dimensions of your desired o ring (in millimeters of course!) and I might just make another ram for it if I have the time. I will also post step and f3d files. If you are handy with Fusion you will find the f3d very helpful. Just edit the o'ring groove sketch profile and experiment with different o'rings!
Change log:
29/09/2026: updated the files so the o'rings sit a bit farther in the barrel. This fixed the issue with poorly chamfered barrels.
5/10/2026: Added looser fit ram. Its doesn't squeeze the o ring outwards that much. print this if you have slightly fat o rings or if the o rings get stuck outside the barrel.