If I go this route, I better upgrade my hole saws from Harbor Freight (they cannot even cut aluminum, LOL). Good idea on the tube or bushings from Aircraft Spruce tube (or others) ... that would be one less thing to mess with if I can avoid producing from rod or round bar!! Thanks a Bunch!!Originally Posted by pshadwick
I cut the small round circles using 4130 1/8" thick using a good hole saw on a drill press.
You can get 4130 tube in all sorts of wall thickness from Aircraft Spruce (and others). Weld them together and you are ready go
...Paul
Ostrich Gyroplane:
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