I know a lot of you are using Bike CAD, or Confusion 360, or other things, and I’m sure they are very excellent tools, but this is my own free software that I wrote and use for designing and making frames.
Quite basic, and you won’t be modelling suspension linkages or details of chainstay yokes or anything. But it will tell you what stack, reach, trail, wheel flop, front centre, standover, etc. you’re going to get, where to cut the tubes, and make mitre templates for you. I’ve made several frames with it. Sharing in case it’s any use to anyone!
