ratcheting mini screwdriver

prusaprinters

I was told that it'd be impossible to fit a ratchet mechanism inside a tiny screwdriver, let alone hold more than a single bit. This is to prove that person wrong ;)also check out the Print-In-Place versionA reversible ratchet mechanism didn't fit the budget so I opted for the big brain move of simply reversing the screwdriver. Yes there's another receptacle in the back ;)fits 4x28mm bits such as the iFixit ones30° ratchet with clockwise and CCW socketfreely rotating end cap optional keychain attachment point in end-capoptional keychain front-cap with tight pressfitprint in one go (dual color too)The low budget LTT screwdriver look or any other dual color look for that matter, can be achieved by a simple filament swap at the 2mm mark.Print time is under 1h and total cost in Prusament is <40ct which means its only 1/100th of the shipping cost of a real LTT screwdriver to europe 💀💀💀Print everything in one go .3mm layer height and .5mm extrusion width (Prusa .3 draft settings). No supports. 57min for just the screwdriver + 18min for the optional capPETG is the way to go but PLA works too but creeps and I haven't done any long term study on how the compliant springs hold up.Assembly is dead simple thanks to the 5 piece assemblyaxle through main-bodyratchet onto axle (check orientation)free spinning cap onto axlerear socket onto axle (press hard)should the tolerance for the rear socket be too tight, fear not I added some variations that are a bit more loosey goosey.STEP included in case you want to improve the ratchet mechanism or you have a better idea on how to attach a keychain.0.3mm layer height & 0.5mm extrusion widthotherwise its gonna be wonky