Join Date: Jan 2009
Location: Surrey, BC, Canada
AWD V8 is offline
Problems cutting with new chop saw
So I've rebuilt my own trailer a couple of times using only my small 3" cut off tool. Now I've got 3 trailer renos to do so I thought I'd make my life a bit easier, I bought a new Makita 14" chop saw.
Didn't think I would be spending 150 bucks to take longer to cut steel than my 3" cut off tool!
Chop saw: 1/4" x 2" flat bar, I give up after 5 minutes! It takes less than 30 seconds with my 3" cut off tool.
It starts off great for a few seconds, lots of sparks flying, then progress quickly slows down to a crawl, then stops about a 1/4 of the way through with only a few light sparks flying. At that point I can spend 10 minutes and it just wont cut any more. I finish it in about 30 seconds with my 3" cut off tool.
I talked to a guy at the steel shop where I buy my steel and he said they don't use chop saws, too messy and noisy and slow. He told me the heat hardens the steel and that it why I'm having trouble. He suggested that I "jab" the wheel into the material to chew through the hardening, doesn't help at all.
Surly this isn't the way it goes with these saws! Who would be using them then!
I've tried 5 different cutting wheels, they all do this. A couple actually made it though the first cut faster than my 3" cut off tool, but the next piece the progress virtually stopped.
My 3" cut off wheels cost me 2 bucks each, the 14" wheels cost me 8-12 each. My 3" cut off wheel will make about 4 cuts in a 1/4" x 2" piece of steel. Cost wise it should be way cheaper to use the 14" wheels.
ANY suggestions appreciated.