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what grit to start with after cutting slab with tile saw
Posted: Tue Jun 05, 2012 11:20 pm
by Chelseaglass
I tried searching the archives and may not have used the proper prompt words. I am trying to determine what grit of diamond pad or loose grit to use on piece of glass (no lap wheel available) to begin with in order to take my Results diamond blade cut edge to a clear finish so the light comes through the edge to illuminate the piece. I tried hitting the edge with a 400 grit pad but that just resulted in visible scratches.....
chelseaglass
Re: what grit to start with after cutting slab with tile saw
Posted: Tue Jun 05, 2012 11:32 pm
by S.TImmerman
Great question, id like to know as well. I have a 24 flat lap so which disk would be best? I've yet to use the flat lap much as Ive been so busy with a SG commission.
Re: what grit to start with after cutting slab with tile saw
Posted: Tue Jun 05, 2012 11:49 pm
by Brock
There is a normal progression like 80 . . 220 . . 400 . . polish. There are many variations.
One thing you should do is grind a tiny bevel on the edge to reduce chipping.
If you grind extensively you may have to redo it. Polish the bevel too, looks great.
Re: what grit to start with after cutting slab with tile saw
Posted: Wed Jun 06, 2012 12:15 am
by Janet McFadyen
well it depends on the blade on the tile saw ... my blade is easily a 200 finish so I start there.
Re: what grit to start with after cutting slab with tile saw
Posted: Wed Jun 06, 2012 11:08 am
by Chelseaglass
Janet,
That makes total sense! I will have to find out since there is no information on the saw blade. Thank you.
Re: what grit to start with after cutting slab with tile saw
Posted: Wed Jun 06, 2012 7:49 pm
by Janet McFadyen
cut a scrape slice of glass and test different grits on different places on the slice... if it leaves a deeper scratch than the tile blade did then go one grit higher to start polishing
Janet