Spring Winder

I've needed a bunch of springs lately for projects. The spring assortment I bought has all the wrong sizes. The local hardware store has all the wrong sizes for obscene prices. The winders I found on YouTube all used drill presses or motors and seemed overly complex, flaky or dangerous. Thus, this winder came to be. I can have any size I want in a few minutes and I don't have to design around stock spring sizes now. I've wound springs on 1/16" mandrels with .008" wire up to .062" wire on 1/2" mandrels and it works well with them all. Mandrels can be anything round. Steel rods, screwdrivers, whatever. (Maybe hardwood? Haven't tried) The winder part is fairly self-explanatory. It just cranks. The handle/tensioner has a hole through it that guides the music wire through to the two plastic clamping discs that supply the tension and provides control. Feed the wire through the handle and discs and clamp the tension screw (wing nut) down tight. Then bend the fi