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Post by mudmasher on Aug 31, 2006 20:57:33 GMT -6
I'm getting some axles casted out of a heaver metal.I'm starting w/ a diameter of 0.088 pattern. The "lost wax" method will be used to cast these.
They'll me be cnc machined,any idea as to what diameter we should shoot for before finishing them out,"shining them up"
Thanks,
MM
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Post by RacerX on Sept 1, 2006 10:35:06 GMT -6
It depends on what wheels you are using, bore size and lube type. If you are using a BSA wheel, the bore diameter can vary up to .006" and as much as .002" left to right due to mold taper so the mold will release. You can either use the Pro Hub Tool and some smaller hubed wheels or ream them if you have access to tooling. If either method is used to straighten them out, then you want to build or fit axles to the finished size of the worked bore minus the clearance for lube, less for wet lube, more for dry lube.
We use a .088" finished axle here at Derby Worx for our Pro "RS" & "SS" wheels that we have fantastic luck with. Also many racers have used them on their finished BSA wheels with the same result so .088" is a good size to shoot for as a "Finish to Size". If you have oversized hub bores, the .092" Awanna axles work well with this, Max-V has them in stock as well.
The HOT SET-UP is a very small axle diameter. We are building a new wheel, the "RSN" with a .030" axle and will have axle sets available as well. But I am sure most scout rules will not allow these axles in regular racing.
Good Luck
Racer X
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