User talk:Spiritdude
Hi Spiritdude, great work on the stiffness of our machine concepts. Looking at this is really overdue, thanks for doing this. Two missing points sprang into my eye:
- The MendelMax is stiffer than the others, due to it's extra triangle at the top, that's right. But it isn't "fully" triangled at the top, the vertical bars can still buckle in X direction. If it were fully triangulated, this triangulation rod whould go down all to the bottom. OK, perhaps that's nitpicking.
- The other one is, less nitpicking, triangulating frames is only one way to get them stiff. Another one is to use stiff bars. Like in single-lever motorcycles for the rear wheel, for example. So far, RepRaps make not really use of stiff bars, but it's thinkable for a Wallace-like design to be stiffer than a MendelMax. Look at ordinary milling machines and drill presses. They don't have triangulated frames, either.
--Traumflug 11:01, 1 August 2012 (UTC)
