Record Breaker

World’s Smallest Working Circular Saw is 3D Printed

circular saw

An engineer from New Zealand has 3D printed the world’s smallest working circular saw, adding to his growing collection of miniature tools.

After making headlines last spring with the smallest ever working drill, New Zealand engineer Lance Abernethy has 3D printed the world’s smallest circular saw on his Ultimaker 2.

Powered by a hearing aid battery, and printed in four separate pieces in about an hour, the tiny little device is unlikely to be much use in industrial applications. It only spins when a button is pressed, but not fast enough to cut. But it’s certainly a lot more interesting than the usual round of plastic trinkets and doodads made on a 3D printer, and a great example of imaginative applications in 3D printing.

Abernathy has also released a video where he shows some of his incredible work, including the drill and circular saw. Both fit inside a 3D printed carrying case, which is roughly the size of a thumb tip. The parts were printed in PLA at a layer height of 21-40 microns and shell thickness of 0.5mm.

Future iterations have been promised, where the saw will be made powerful enough to actually cut something solid. In the meantime, Abernethy’s circular saw and drill set will no doubt capture the attention of the Guinness Book of World Records. (source Ultimaker via 3ders.org)