kampos":wqa33jxc said:An engineer friend and I discussed this ; and the only possible solution we found was to use the BB shell itself as the inner part of the pivot ; then to wrap the outer part around it. Good Luck with the project!
kampos":2asha643 said:^ Yup ; that's pretty much what we decided -- too much gubbins and too little space for it. Ultimately ; any design will be a compromise: You can make a frame to this design stiff enough by adding material ; so up goes the weight etc.etc. ; I'm pretty sure this is why most frames now are single pivot "Marin/Whyte" - ish frames ; it's the best overall compromise. As an aside ; ever seen one of these?
http://www.pinkbike.com/photo/7703577/
Virtual Pivot Point ; interesting idea.
mikee":8gvxboyt said:it all depends what your trying to achieve here
a uni engineering project or just dicking around on solidworks ?