When I make my purr pots, I take a 3.5" piece of slate and grind it down to about 3.4". Reason being is that the plastic pots that are used are that diameter. I do it on a belt sander. Some pieces will turn out just perfect, others will have some chips missing on the edge. Some that chip will end up egg shaped because it sands quicker at the chipped spots.
Does anyone have any experience sanding slate? would you know a trick to keep it from chipping?
It makes the biggest mess to when your sanding it!!!!
Sadler
80 grit belt slow speed heat is the problem
I use can water and dip the slate as I sand so it don't get hot and chip use fine sandpaper
water and take compass and score your cut line help keep from chipping ,,,,on a disc belt sander I use the disc side liter grit paper ,,,, if your doing a lot my be easier get it straight from quarry
http://pennbigbedslate.com/products/miscellaneous/
I have used double sided tape to put sandpaper on faceplate for my lathe. Just use on low speed and constantly turn slate.
Quote from: M,Yingling on January 15, 2015, 03:23:52 PM
water and take compass and score your cut line help keep from chipping ,,,,on a disc belt sander I use the disc side liter grit paper ,,,, if your doing a lot my be easier get it straight from quarry
http://pennbigbedslate.com/products/miscellaneous/
Yep
Check you table on your disc sander. If the gap is too large, it will chip off the bottom of the slate!