There are a lot of pictures, and I hope they help explain what I am doing. Sorry, no action shots. I don't have anyone to hold the camera : )
Let me know what could be clearer, and what I should take out. Doing it is so much easier than trying to explain how to do it for me.
Step 1: Where to begin...
If you start with a 'new' coil spring from a car, it will need to be cut down. I find it easiest to throw the coil spring into a bonfire, let it get hot, then cool off (anneal, or soften, or remove the temper) then cut it with an angle grinder
or high tension hacksaw (worth the extra few dollars).
If you skip the annealing, you use up a lot more blades and elbow grease whether you use the angle grinder or hacksaw. If you use a flat spring from a car, you don't have to anneal, but I find that kind of spring a bit awkward to hang on to.
NOTE: protect your eyes! The angle grinder throws off more sparks than a firework and they get into the most painful places.
NOTE: cut metal is HOT! An angle grinder is faster, but all those sparks are burning steel. Whatever you are cutting will get hot, even if using a slow hacksaw.
NOTE: cut metal is SHARP! Even a flat edge has burrs that will grab your skin and tear it open.
I did part of this last fall, so I don't have any pics of the annealing or cutting : P But here's the end result.
I'll be using the big round piece.