Why a glass platen

I tried a glass platen but they worn too quickly developing gooves and cracking. I went back to a harden D2 steel platen. I'm trying to find a piece of tungsten carbide or very hard ceramic, the kind used for knife blades thats the right size but no luck so far.
 
Shing.
I find that very strange. Was it plate glass? The pirosceran or similar takes a very long time to develope a groove and that will be in an area that is repeatedly used over and over, and over. Frank
 
I use ordinary window glass and I find it wears too fast and breaks too easily. I haven't tried the pyroceram but I think carbide or ceramic would be a lot harder and longer wearing. I thought about using a smooth ceramic sharpening stone because they are very hard.

Has anyone tired a piece of stellite because that is supposed to be very hard wearing and low friction so would keep cool and last a long time.
 
Otto72 said:
I don't know if anyone else has tried this but I happened to have some nice left over flat porcelain tile (18") and a diamond blade tile saw. I cut it to size and it has worked great since I put it on over a year ago.
Click to expand...

Otto72, Could you expand a bit on the porcelain tile you used please?
Is is wall tile or floor tile?
How smooth is the surface?
Is there any alternative to a diamond blade tile saw to cut it up?
How long have you been using it?

LonePine
AKA Paul Meske
 
I ordered a piece of 6" X 6" Pyrex or Schots (sp) glass from Mcmaster. I was able to scapr and cut it with a class cutter and make 3 platten liners for my grinder. I have been using one of them for several years now. It is hell to round the corners, but a half worn 60 Grit will do it.

Thanks for the tip on the Static guard for the belts. Nothing worse that grinding with a 36 and getting the crap knocked out of you. :eek: I have also driven a ground rod outside the shop and run a wire and clip to the platten. This helps as well.

Paul
 
Good stuff guys, I'm definitely gonna be buying either a glass or ceramic platen in the very near future, gonna keep an eye on this thread for sure.

-- Adam
 
I know I'm late to the party... :)

If I didn't have the shop I have, I'd probably add glass to a machine like that.

As far as what I do have, I did not care for the glass platen. It always shocked the crap out of me and got grooves in it just like a steel platen does.

I have near-full hard D2 platens on my grinders and I just surface grind them when they start to get grooves.

IDK, maybe I just got a bad batch of pyroceram, but I tried it a couple different times with the same results.
 
Quick tip for removing the glass from the platen for replacement. I used JB weld on my setup and swapped out for a different platen while in the process of setting up my grinder. Anyway, heated up the angle iron evenly with a propane torch from the back side. I could see the glass separating from the JB weld...came right off with no cracking. Then used a scraper on the platen. JB weld comes off nicley while hot
 
Do you guys use normal glass or hardened savety glass (like in car windows)?
 
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