Originally Posted by
unterhausen
so that drawing is generated by rattleCAD? Maybe I'll have to start using it..
Yep, as I allude to, the user can manipulate the bend of the stays using the crosses that are seen just above where the fixture is sitting. you can drag them to lengthen the sections and so on. User can also simply double click and enter measurements. It's a bit fiddly and I find translating real world into the software a bit of a challenge. I enter measurements as close as I can for the chainstays and then measure the cranks, disc, chainrings and tire to enter those parameters. I print it out and then lay this fixture over the top and make sure the tubes clear the tire, disc, chainrings, etc.
Originally Posted by
unterhausen
Neat fixture, I am planning on building something similar so I can get rear dropouts brazed on more accurately.
I have another one that is a bit more compact so it fits into my mill (small vertical knee type) with it's limited Z travel. Those tube blocks are the ones that Alex Meade just came out with and they are great. I was using v-blocks before and those weren't as nice or secure.