imamac96
Well-Known Member
Before I drop about $500 to manufacture a prototype for something to do, has anyone tried making a PSRU out of quick-change gear covers and gears?
Something like this: https://www.summitracing.com/parts/wpp-3736
Disclaimer:
I have absolutely no idea what I'm doing. I just finished reading Finch's book on auto conversions and reflecting.
I don't plan to fly behind this thing any time in the near future. I was just interested in something to do and a quick project for CAD and machining.
The quick change gears are typically made out of 8620, and it's somewhat comparable (not quite as durable as 4140).
The housing is a fairly expensive piece to machine. Using two as a front and rear with two gaskets separating them from a 3D-milled centerpiece seems like it would bring down cost quite a bit.
The main part I would be concerned about is the bearing surface, but the helical gears are not as plentiful as the spurs, and the spur-type would not produce the axial load like the helicals would.
The big drawback would obviously be weight. These were not necessarily designed to be light.
Thanks,
Connor
Something like this: https://www.summitracing.com/parts/wpp-3736
Disclaimer:
I have absolutely no idea what I'm doing. I just finished reading Finch's book on auto conversions and reflecting.
I don't plan to fly behind this thing any time in the near future. I was just interested in something to do and a quick project for CAD and machining.
The quick change gears are typically made out of 8620, and it's somewhat comparable (not quite as durable as 4140).
The housing is a fairly expensive piece to machine. Using two as a front and rear with two gaskets separating them from a 3D-milled centerpiece seems like it would bring down cost quite a bit.
The main part I would be concerned about is the bearing surface, but the helical gears are not as plentiful as the spurs, and the spur-type would not produce the axial load like the helicals would.
The big drawback would obviously be weight. These were not necessarily designed to be light.
Thanks,
Connor
