To help the MHF members learn more about the hobby foundry craft, we have made some instructional videos to watch.
This Video is about the Gyratory Sand Riddle,(Part One) used for re-conditioning green sand. Built in the writers myhomefoundry, this machine makes the job of tempering and conditioning of green sand a breeze.
You might also like to watch part two about the sand riddle.
If you can work with metal and weld, you can build this riddle. The electric motor is a donor from an old domestic washing machine.