Quote:
Originally posted by Johca_Gaorl
How did you make the wheels?
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We have a girl on our team who is a senior, and her father is a senior ME at Northrop Grumman. Over the years her father has bought a CNC mill, a few manual mills, a lathe, etc. So they've got a machine shop in their 3 or 4 car garage. So Audrey used the CNC mill to carve the wheels out of 7" by 7" aluminum stock, then she and her father put the wheels on a lathe and made sure that the edges were round. Then they took out the necessary material to make an 1/8" indentation for the tread material to sit in, and drilled the sxle hole so it was concentric with the tread groove. Anything else you want to know?
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After all that was done, some other kids on the team (including Jim) drilled and tapped holes for 6-32 screws to attatch the treading.
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At least I thought they were 6-32's. Maybe I'm wrong.
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