Derby Dust Hub Shaver

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Possibly the most over looked tool on the market right now.  Nearly 10 years into the wheel molds, nearly every wheel has some sort of flaw.  Most common flaw to date that will cause wheel wobble will be the uneven outer hub.  Pictured are two factory flaws that are pretty common even with the “best” of molds.  This uneven surface causes uneven rotation, which translates to wheel wobble.  You are in luck, there is a DIY tool that will fix this.  The Derby Worx Pro Hub Shaver.

pinewood derby wheel hub flaw

pinewood derby wheel mold seam

 

What we have done is resurfaced this hub for a smooth, flat,  parallel surface to the bore.  We also widen the overall diameter than just a smudge to ensure that the head of the axle does not rub against the wheel.   Note the lower step of the hub is never in contact with the axle other than at the inner bore.  The only part that matters is the upper step of the hub.  Below is what we do with our CNC lathes.  It can be mimicked with the Pro Hub Shaver.

derby dust machined pinewood derby hub

pinewood derby machined outer hub

 

The Derby Worx Pro Shaver is that tool that will clean up these factory flaws.

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