Linkgage- design and send out for CNC
Posted: Sun Dec 08, 2024 7:19 amI have a couple modern OSSA Explorers- these are trials bikes with a seat and additional fuel. Same as the trials versions, with all the same features/drawbacks (depending on use of course).
I bought one of these new in 2014, ride the heck out of it. I managed to break the rear suspension linkage twice- then I bought a Titanium one a Czech guy was making. Well, those are no longer made.
So I designed a setup in Fusion (3d CAD), 3D printed to verify I got it right, then sent files to an outfit that CNC the part from Titanium. I changed the middle pivot to needle bearings instead of original teflon coated bushings- there was not room to change the others without some major work. I also added lubrication passages/ports so no need to dismantle to lube. Since the teflon bushings have no seals, just pushing a bunch of grease through can also push out most of the water/mud etc.
This was a pretty fun project, I learned a bunch made some goofups and have something that should work darn well.
I bought one of these new in 2014, ride the heck out of it. I managed to break the rear suspension linkage twice- then I bought a Titanium one a Czech guy was making. Well, those are no longer made.
So I designed a setup in Fusion (3d CAD), 3D printed to verify I got it right, then sent files to an outfit that CNC the part from Titanium. I changed the middle pivot to needle bearings instead of original teflon coated bushings- there was not room to change the others without some major work. I also added lubrication passages/ports so no need to dismantle to lube. Since the teflon bushings have no seals, just pushing a bunch of grease through can also push out most of the water/mud etc.
This was a pretty fun project, I learned a bunch made some goofups and have something that should work darn well.