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12-11-2012, 08:35 AM #1
I have to cut a chalkboard, what tool to use? Blade type
I have 2 chalkboards I need to cut down because they are too large.
I've never cut anything like this. My guess it's slate with some kind of backing material?
Anybody ever cut a chalkboard?
Sawzall? Which blade on the Sawzall? Circular saw? Other?
I know it's a long shot but thought I might ask before doing some test cuts on the ends.
I have a nice table saw that I would prefer not to do any tests with but if that's the right tool to make the cut that's what I'll use.
12-11-2012, 08:43 AM #2
2 chalkboard and a dry erasure board needs to be cut down to size as well.
12-11-2012, 08:52 AM #3
If it is an actual slate board, I'd try a diamond blade in a circular saw or grinder, if it is just painted wood, I'd go at it with a regular saw blade. Without seeing the white board, its a crap shoot as to guessing what it is actually made out of.
Nothing special to them, just determine what they are made out of and choose the appropriate blade.
12-11-2012, 09:30 AM #4
x2 an abrasive blade if its slate. Same way you cut ceramic/stone flooring tiles.
The dry erase boards we have are just a pressed paper composite w/ a shiny surface. Cuts easily w/ any saw. Put tape over the cut on the shiny side to limit chipping. (and cut from the side so the blade is cutting into it: white side up on a table saw, down w/ a hand circ saw.)
12-11-2012, 03:19 PM #5
Chalk boards are often just painted fine finished ply over hear. Painted with "black Board" paint. Car taker at school when i was a kid use to repaint them all every summer holiday.
12-11-2012, 03:32 PM #6
I cut down a slate chalkboard with a hacksaw blade-it is very soft-nothing like tile that most people are used to. I would get a fairly fine sabre saw blade and go for it. I did not have this tool when I did mine. the Sawzall can be hard to control. THe slate can crack easily, so I would move slow.