Lapping plate CD

[Tom Curran]

I don't know where this idea came from, but here goes:

I was wishing to hone my gravers, cutting silver, and a polished heel and face make such a difference.

However, I don't have a ceramic lapping plate. Have been reading about folks using acrylic plates, masonite plates,etc. I haven't gotten around to making one yet.

Today I am sitting at my computer toying with an old CD. A certain 'dawning' effect was slowly taking place.....suppose I put the CD on my GRS platter....right on top of the 1200 grit wheel. It fit, and runs pretty true.

So I fogged the surface with some 1000 grit paper, making the scratches go from center to edge. Then I spread some 1800 grit diamond lapping paste on there, and HOKEY SMOKES! I can lap the face and heel to a mirror shine, using my double angle fixture! No more rounding the edges over, stropping by hand!

Tom

 

[Sam]

Your post was added to the Tips Archive, Tom. Thanks for sharing your experience! I'm going to try this.

 

[Tom Curran]

I see a post by Van, about using PSA to make abrasive discs out of old CD's in the Tips archive. Not exactly the same, but maybe that was a subconscious inspiration for my idea. Thanks, Van.
Tom