deVries wrote:johnrobholmes wrote:What a trick way to incorporate the mounting foot into a tensioning device!
Even more trick is how to get chain alignment?
Do you see and understand how it can move laterally to get chain-line alignment?
Use spacers or is there a tracking slot to move it?
Lateral adjustment for sprocket alignment is accomplished by loostening the mount foot clamping screws and sliding the whole jackshaft bearing tube left or right in the assembly. In my mock-up, you cannot see what I mean. But, the bearing tube will be about an inch longer than what is in the mock-up. For chain alignment, the whole jackshaft is moved side to side to make infinate alignment adjustments.
Thanks for pointing out something that could be easily overlooked in something like this. Do not be afraid to make suggestions or ask questions. It is not out of the realm of possibility that I could ovelook something or not thing of something that would be a good addition to a given design.
Also, yes, I have looked into lazer cutting and water cutting. Those are great options for 2D work.
The freewheeling crank has been boiled down to one machined part ------ the sprocket adaptor. I, ironically, looks much like my disc brake/chainring adaptor. I do not have any CAD drawings to show. I will wait to show the finished part.