Ratchet Spanner Wrench 15mm

A 'print in place' ratcheting spanner/wrench.

Inspired by the freewheel mechanism on a bicycle, I designed this tool to be compact and strong but most importantly it can be printed in place, already assembled.

The internal gear rotates in one direction depending on which way round the tool is engaged.

The spring latches into place perfectly to engage when tightening but slides over the teeth when spinning the opposite way.

All parts have been designed with 3d printing in mind with no need for support material. The 45 degree angle internally not only makes this easily printable, but it also locks the turning sprocket inside the frame.

#3Dprint