OTF Utility Knife

thingiverse

complete restructure of the OTF Knife posted here; not really a rebuild but it uses the same mechanism etc this is a fully functional OTF knife with the ability to insert a standard utility blade/ stanley blade (for UK users) ive included an STL for a plastic blade: http://www.thingiverse.com/thing:3221468 from Ponddust which will fit and work; but you can use real utility blades. you will likely have to tweak the print a tiny bit with some sanding to get things running smoothly; but shouldnt be much. if you are sanding then work on the longest straight edges of each piece: the blade housing and the mechanism sections are all you should really need to sand. the case is in two sections and ive added pegs for easy glueing and or drilling/screwing if you require to fiddle that much. ive just used electric tape on mine and it works fine. if you print with higher infill you will obviously get a stronger build. you will require a fairly powerful rubber band for this build; take some trial and error to find one that suits. Im using one that is doubled up and its working fine but TBH i think the stronger the better. you might want to glue the spring in place; its a tiny bit loose which allows for some give and take in the mechanism. if you glue it in place you may need to sand it slightly shorter and tweak until things work correctly. NOTE: this is illegal in alot of countries with a standard utility blade. if thats the case print at your own risk and i fully suggest you only use the plastic blade enclosed! TBH if you print that on high enough settings its sharp enough to cut tape and suchlike anyway. finally; this is my first big project and build and im sure there are better ways of doing it and it could be neater and suchlike. enjoy it for what it is.