So I'm in the process of starting my first frame build and I've been putting together Jig ideas, tooling, and measurement processes.
On that measurement process, I found my granite island counter top to be incredibly flat. My question is, based on this picture, does this appear to be a fairly accurate way of measurement. Obviously this BB has been faced, which helps with my clamp mounts. The frame here checks out within .15mm on all tube measurements except the TT, which angles up .65mm from ST to HT. Seems like a lot, but maybe my process is flawed??
I checked another frame using this method and found it consistent all around, no more than .2mm out, so I think the table and mounting method is ok, but what do I know..