Century-old #AnalogComputer from IBM. For an explanation of how it worked to mechanically calculate wedge cuts from cheese wheels by weight or price, skip to 42:30.

But if you have time, enjoy #HandToolRescue's entire restoration.
https://youtu.be/z8VhNF_0I5c

The Devil's Wrench printed at 50%. Mini and medium wrenches for scale.

#handtoolrescue
#3dprinting