MitchJi
10 MW
Hi,
Great job
!
Like the use of 3d printing.
Maybe using a patterson crankset like this (1.6:q overdrive and about $300, much less than a shumplf) you could get rid of the pedal jackshaft?:
http://endless-sphere.com/forums/viewtopic.php?f=6&t=49583&p=735068&#p734904
Great job
!Like the use of 3d printing.
Maybe using a patterson crankset like this (1.6:q overdrive and about $300, much less than a shumplf) you could get rid of the pedal jackshaft?:
http://endless-sphere.com/forums/viewtopic.php?f=6&t=49583&p=735068&#p734904
justin_le said:So that seems to have worked out OK. I pulled a 42 tooth middle ring with 4 hole spider that seemed to line up well with the teeth on the 28 tooth ring that comes with the patterson crankset. Both were steel so easily welded together, and the 42 tooth ring is stamped in a way that makes the teeth fit on the same plane as the 28 tooth ring when stacked together this way:
