No2 Cracker
thingiverse
Simple Cracker for 8g No2 containers requires a small screw inserted into the center hole. This setup works remarkably well as intended after some trial and error. To enhance sealing, I recommend applying two or three wraps of electrical tape around where the top piece meets the bottom piece with a cartridge inside. Wearing gloves or holding the container with an oven mitt is also highly advisable due to the extremely low temperatures of the gases involved. When puncturing the cartridge, it's crucial to hold the top piece firmly in place to prevent the entire container from flying off and causing potential injury to sensitive areas of the face.
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