MapGas Canister Thread Protector
thingiverse
Just what it says... But it is a handy and easy way to start printing your own threads on Freecad...
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With this file you will be able to print MapGas Canister Thread Protector with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on MapGas Canister Thread Protector.