Re: ATM Toy wheels for dob bearings

[andydtg@alpha1.phoenix.net]

Stephen Tonkin wrote:

>I have been keeping an eye out for an old skateboard in the local junk
>shops.  I'd like to try the wheels as altitude bearings -- nice ball-
>races and the plastic is easily workable/drillable/tappable.

A friend of mine built a polar platform using skateboard wheels,
the type with semi-soft plastic rims. Works OK but you get a tremendous
amount of oscillation, kind of like mounting the scope on rubber
blocks. I'd look for hard-rim wheels.




Andy Saulietis / DTG Alt-Az-Fp Drive Systems
12617 Harriet Ln
Santa Fe, TX 77510 USA
409-925-8854 Voice/Fax