Arm geometry and null points


Here's one for Doug Deacon and John Ellison??

Assuming you've set correct 'overhang' and spindle to pivot distance for your respective arms, using Baerwald geometry, would the null points be at the same locations for 9", 10" and 12" arms?
halcro

Showing 3 responses by halcro

Thanks guys, that's what I thought.
The reason I had to ask Doug, is that I have just bought from Yip the Mint Tractor made for the Graham Phantom II standard arm which is, as you have said, the best template on the market IMHO.

For my other arms, the Copperhead and the DaVinci 12" Ref, I have the WallyTractor and the Feickert respectively.

I wanted to use the Mint Null Points inscribed lines to align the styli in my other arms after I had set up the correct Spindle to Pivot distances and Overhang adjustments using the other templates and I asked Yip if the null points were in the same positions and he did not know!!??...a bit worrying?

Regards
Henry
Hi Jonathan and Doug,

I made it clear to Yip that all arms were set using Baerwald geometry.

I think maybe he wasn't keen on me NOT buying 2 other Mint Tractors for the other arms?

Regards
Henry
Sorry Doug, but John Ellison beat you to it on Vinyl Asylum with his one word answer......Yes!

For that he charges nothing but your verbosity and 3rd degree deserve some recompense? :-)