Did some work on my top box rack. I have a pic of the mock up I did out of 1/2" conduit. Too thin to use but served its purpose. Let me iball my idea, and get practice with the new tubing bender.
Then I started with the new 5/8" (16mm)x .060" tubing for the final build.
I hit a bit of a snag yesterday. I was using (actually abusing) my 18yr old cheapo 4" bench vice, and it finally got tired of it and broke. I tried welding it, but of course cast iron did what cast iron does, and refused to stop cracking when getting welded.
Sooo, off to Harbor freight for a new one, and an upgrade. I got the 6" Doyle made from ductile iron, with a 60,000 psi rating. This ought to last me the rest of my life.
Back to the bike, the changes still doming to the rack will be two 90* elbows from the front of the rack that will curve down towards the rear of the pillion seat frame. I plan on using nut inserts to bolt the front of the 90*'s to the pillion frame. This will give me a three point attachment. Hopefully this will provide the strength I want to support the top box, especially if on bumpy dirt roads.