- Joined
- Jul 8, 2011
- Messages
- 2,668
bwolfie said:Wow, I am going to move the swingarm to a new thread by itself. That should explode this forum. :twisted:
Seriously, I know it might not work, but it's worth a shot. I don't have any fancy CAD software, well that's not true I have it, I just don't know how to use it.
I'll do some real world testing of it when I get it installed. I'm not planning any trips to Bonneville.
I can always throw the steel one back on, or build version 2.0.
I did copy the latest and best version, so that should be worth something.
We'll see.
The main thing is you have perspective and you know what you are doing and know what you are getting into.
As for Bonneville, probably the least problematic for a swingarm with little history.
When doing my first AHRMA road racer build based on a sleeved down Mk5 I was at a friends machine shop heating the swingarm in order to get flats for the tire clearnce. I don't recall the exact jigging but after heat the swingarm spindle end was securely fastened to the table of a bridgeport vertical mill. Heat was applied judiciously and a large bar was used to bend the swing warms back to parallel; used a dial indicator across the axle to confirm parallel with swing arm spindle.
The point is that it is amazing to see the cold flexure with moderate force. If you have the ways and means it might be enlightening to do the same with your alloy swing arm and your steel one and compare. Pick a measuring datum for the dial indicator, a fixed weight and fixed leaver arm. On a tangent but along the same lines, if someone has a press (with gauge) and a dial indicator and a few vee blocks it would be interesting to measure load versus deflection on the Norton crankshaft; but that should be on a separate thread.