2-part, reinforced Makedo Screwdriver

thingiverse

UPDATE: Reinforced Tool Shaft Strength by Printing Parallel to Torque Applied. The old design frequently broke due to printing planes being perpendicular to torque or aligned with applied force. Utilizing hex inner and outer perimeters on the tool head, rather than a cylindrical outer perimeter, fully takes advantage of Makedo screw recesses. The new design combines a single file with separate pieces for customizable print profiles (infill, layers) on the handle and shaft. This modification builds upon another user's Makedo driver that couldn't withstand torque without tearing. Additional surface area reinforcement only addressed symptoms, not the root cause - insufficient internal support where the handle meets the tool. This design modification prints screwdrivers as two snugly fitting parts. I recommend manually tapering the printed driver bit with flush cutters for easier insertion. Firm pressure against a firm surface will nearly permanently join the parts, reinforcing the entire 15mm inserted length. The modified design was created in TinkerCad by splitting and extending parts, then duplicating a hole to create an insertion point in the handle.