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Using the VPI threaded clamp and azimuth change

I am using the VPI threaded delrin clamp that came with my classic 1. It is stated that the threaded clamp is to be used in conjunction with the rubber spindle washer. When it is used this way, it seems like it would negatively affect the azimuth setting. When you screw down the clamp and tighten it against the rubber washer, it does force the outer edge of the LP downward to touch the platter. This causes the LP to have a slight downward dish appearance. When I have set my azimuth on a level surface, does this not cause the azimuth to be out of alignment? Do I need to set my azimuth canted a bit to the outside of the platter to compensate for this effect? How are you VPI users adjusting for this?
andyprice44

Showing 1 response by markd51

markd51
761 posts
 
Clamping can be a little tricky, where there will be slight variances in clamp down pressure with any given record. It takes a bit more time to critically, and correctly clamp, but is probably worth it, just for the fact of better coupling the record to Platter Surface.

You maybe might want to try something like the Herbies Grungebuster VPI Spindle Washer.

Right off the bat, the Rubber Washer is a bit harder in Shore Hardness, and more resistant to compression IMO than the Herbies Spindle Washer. The Grungebuster material seems a little more "spongy", and giving. Rubber can also have a tendency to get harder over time.

With the Herbies Washer, you might be able to achieve a better, and flatter coupling of the record. Mark
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