Thread: What can I do to lap 1/8" thickness off of a welch llyn medllyn

Is there a place that does granite counter tops by you? They maybe able to make a face cut for you. Just a thought.

A llyn medllyn should lap fast, as said a low grit sanding belt will get you to flat quickly, or drywall sanding screen in a dollar store cookie sheet, on flat cement floor.

I use 60 or 80 grit Silicone Oxide loose grit in a cookie sheet to get Noviculites flat in a few minutes, from GotGrit.com. A $15 grit progression will get you to 500 grit then switch to Wet & Dry. Once flat, it goes quickly through the grits. You only need a teaspoon of each grit, so a quarter pound will be plenty to do several stones.

Here is an old thread on lapping on sanding screen. Lapping Vosgienne

You might try your sidewalk to get the heavy stuff off then sand paper to finish up.