Thanks for the tip! How were you rolling it?
On your other post before this one, That is why I asked the question ;).
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Hi Steve,
Glad the first carve went flawlessly! Fun stuff isn't it?!
I think what Joe meant to say in the video was to set the jig "over the top of" the sliding plate not "on". I can see where the choice of words could be taken wrong. He didn't mean that it would literally "touch" or "rest upon" the plate(s). As you can tell, the jig cannot touch the plates anyway, as the drive mechanism and rollers keep it slightly raised above them (on purpose).
The first (like Dan's) metal tabs were hand made. Subsequent ones were machined, but they were slightly large. We've been filing them down here by hand during our assembly. It wouldn't surprise me that we missed one or didn't file some of them enough.
Michael,
You're right. The belt-drive and the rollers on the jig are far enough below the aluminum end plates so the aluminum end plates can't touch the squaring plate or the sliding plate regardless of where they are placed. Its the aluminum end plates that I was referring to in my previous post. However, by sliding the jig over as far to the left (keyboard end) as possible allows more of the tracking roller to be exposed to the belt-drive on the jig. I think this was the problem on the first calibration attempt . I'm not sure though.