Part 2 link: https://bit.ly/2Tp9gR8
Part 3 link: https://bit.ly/2wumOC6
Winding a double helix copper condenser coil from 6mm copper tube for use in a 50mm reflux column. Made the winder from an old boat trailer winch, 16mm stainless tube, scrap iron and a cambelt bearing from a Mazda Demio. It is easy to wind the outer coil by hand but the inner coil is a bastard to do by hand. Wasted metres and metres of copper tube trying! It takes only a few minutes to wind the coil and filling the copper tube with salt is the most time consuming. It is certainly not the most beautiful coil I have ever seen, but it works like magic. The coil is part of a still project we are working on and I will make a video of the finished project once we are done with it ...... eventually!!
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