Tattoo Machine Ink Pen

thingiverse

It started as a keychain accessory before transforming into a functional writing instrument. When expanded to its full dimensions, any standard ink pen cartridge should slide smoothly through the central tube. Engraved on one side is the phrase "Eternal," signifying that this item was designed to be gifted to customers. Noteworthy, however, is the fact that support material proves challenging to remove entirely, particularly from the area where the pen inserts. As such, a 9/64 drill bit or smaller should suffice for efficient removal. Additionally, there's a conveniently located hole on the back top of this accessory, accommodating keychain attachment. An ink pen cap truncated to fit the pen tip provides an optimal snug fit. Revision: I added a blank variant, accompanied by one bearing the engravings "FAMILY," "INKED," and "BLACK." I also enhanced the accompanying Sketchup file and enlarged these new iterations by 25.4 times their original dimensions.