I've been offered a surface grinder

[PixMan]

(12-04-2014, 08:06 AM)TomG Wrote: Darren,

I think I posted some info on wheel grades a while back, but I can't remember where.

That knurl pattern you were wondering about is caused by one knurl having more pressure on it than the other, which results in one diamond pattern being deeper than the other. The clamp knurling tool I'm currently making all but eliminates that problem and also helps prevent double knurls.

Tom

Tom.

I tend to disagree with you on the knurling problem. The way I see it there is cutting from both knurls, though one cut in deeper coming from the left, the other cut in deeper coming from the right because right in the middle it looks even.

I have no idea what caused it, but I'd be surprised if it could be duplicated.