The files for the Caerbannog capless razor are now available for non-commercial use: https://www.thingiverse.com/thing:4648573 You'll also need to print the handle: https://www.thingiverse.com/thing:4647384 You will also need: Three 3mm × 2 mm round magnets of grade N52 Superglue for the magnets and the handle A small file in case the tabs are a smidgen too tight An injector blade The razor takes an injector blade. There is indeed no cap. The blade is held in place with three small, yet strong, magnets and two small tabs. It looks scary, but I like the way it shaves.
Now, does anyone have the 3D printer plans for The Holy Hand Grenade of Antioch? You know, just in case.