Rob, Good plan. I have played with sketchup but thanks for the You Tube pointer. I use welding exactly as you use sketchup. Weld, try...weld...try. For me reality is whether, for example, my feet actually reach the pedals :=) But if you are thinking open source production of standardized parts autocad is a great way to go. Expensive to have parts machined for a one off design (unless you are the machinist) but efficient if you are thinking about production. Kurt On Thu, Apr 7, 2011 at 11:37 AM, Rob Raymakers <r.raymakers@xxxxxxxxx>wrote: > > Thanks for all the info on the seat. It really cleared things up for me. > Now the hunt for a cheap seats starts. :) > > I basically use Google Sketchup to quickly model ideas for parts of the > things i build. I can group everything into groups > and move those around, stretch and rotate etc to see if my ideas fit > reality. I found it pretty easy to learn, the youtube tutorials > are excellent. > When i finish a design and i need to build or order parts, i turn to > AutoCAD. Draw the designs up again by hand, nice last step > to check look it all over again. And companies basically always want > AutoCAD. > > Rob >