Rubber Band Pulley Reduction System for Capacitor Discharge

thingiverse

https://www.youtube.com/watch?v=dfnd_opYOgo&feature=youtu.be This is a Rubber Band Pulley Reduction System. You can use this for whatever you please. I am using it for for a mechanical capacitor discharge system. It is an alternative to more sophisticated electronic discharge systems. Here is a list of parts that I used. I used these 53mm skateboard wheels https://minilogoskateboards.com/mini-logo-skateboard-wheels-c-cut-53mm-101a-black-4pk I used these skateboard bearings https://www.amazon.com/Andale-Bearings-Daewon-Precision-Skateboard/dp/B01CL6V6U8 You will need a quantity of 36 bolts that are #6-32 x 1/2in from a hardware store. You will need 8mm shaft like these https://www.servocity.com/8mm-stainless-steel-precision-shafting You will have to get the 100mm lengths and cut them to 3.5"s I used Hatchbox gold pla and Printrbot snow white to print this Thing. I printed at .3mm layers with .6mm tops & bottoms and 1.2mm walls @ 60mm/sec on a modified Pritrbot Play. If you wanted you could upgrade to a chain drive using this same housing. There are plenty of robot shops that sell #25 chain and sprockets for 8mm rod. If you use it with the relay system you will need a thin metal strip to add to the end of the print on the electrical relay. This should be somewhat flexible. It will be pressed by the cam on the skate wheel print. These are the rubber bands that I use https://www.uline.com/Product/Detail/S-14724/Rubber-Bands/105-Rubber-Bands-5-x-5-8 You may have to trim off some of the width. Disclaimer__ Experiment with this thing at your own risk. Catastrophic failure of parts spinning at high speed can cause damage to property, injury, or even death.