To avoid these ads, REGISTER NOW!

Cut-Off Saw Slop

dirtrunner0519

Well-known member
Joined
May 9, 2012
Messages
399
It seems many of the members on here weld quite frequently. I wanted to see if anyone had any recommendations on getting rid of the slop on my chop saw. It is a 14" saw, and I am using USA made blades, not sure on brand has no markings, could be Chinese made.

I see it mainly on cutting 45 degree angles on 2 x 2 x 3/16" steel. I am talking about a 1/8" to 3/16" off when doing corners. I end up having to fill the void with weld rod.

Any recommendations.
 
To avoid these ads, REGISTER NOW!

jeepinerdeep

Well-known member
Joined
Dec 28, 2013
Messages
2,099
Location
South Central PA
An abrasive saw? The harder you push the more crooked it goes. I've never made a nice cut with one. I am not sure it is possible.

Do you cut a lot of those angles? Maybe it's time to get a femi.
 

Milton Shaw

Well-known member
Joined
Feb 11, 2011
Messages
4,845
Check to make sure the work is not sliding in the vise. At an angle the work takes a lot more pressure to hold and the vise produces a lot less pressure. I have to use a second clamp to help hold on both my chop saws when I am doing angle cuts. Some sticky back sandpaper on the fixed jaw of the vise will help keep the work from sliding.
 

Showkey

"MEMBER EMERITUS"
Joined
Aug 9, 2014
Messages
8,638
Location
Wausau WI
The saw blade deflects with side pressure. More so on angle cuts........light even pressure and slow cuts helps.
 

glentre

Well-known member
Joined
May 21, 2016
Messages
909
Location
Gloucester, Virginia
I had the same problem when I bought a 14" chop saw using an abrasive wheel because the wheel itself flexes too much, especially on angles. Returned it and bought a chop saw with a carbide tipped steel blade which does a super job. An abrasive saw runs at too high an rpm to use a metal carbide blade so stay away from that for your own safety.

Glen
 

Jackfre

Well-known member
Joined
Dec 26, 2010
Messages
4,411
Location
N CA
With my abrasive, Horiz BS or my Evolution dry cut, 45's are a hassle. Pressure deflects all of the blades. Unless very securely mounted the saws creep. I don't have a really good indeed/outfeed set-up that is permanent, so I am always screwing around trying to get the set-up right, and with the small tables on all of these saws that too is a problem. I have gotten to the point where, if it is an exposed area and has to be tight I will cut slightly long and grind to my line. The dry cut Evolution is a really nice saw. I haven't used the abrasive since getting it.
 
To avoid these ads, REGISTER NOW!

bwringer

Well-known member
Joined
Jan 1, 2013
Messages
10,318
Location
Indianapolis
This guy is sort of irritating, but he shows how he rebuilt the hinge in his miter saw to help eliminate the play:
 
OP
D

dirtrunner0519

Well-known member
Joined
May 9, 2012
Messages
399
I have tried a carbide blade for cutting, it simply does not last that long, not on a chop saw on a miter saw. Maybe i bought the wrong type of blade for what i was doing. I will look into a cold saw or even maybe a band saw. Do band saws have just as much issue cutting on an angle. A lot of the work i have been doing for the house involves 45 angle to get a clean look.
 

bullnerd

Well-known member
Joined
Sep 17, 2012
Messages
5,690
Location
Jersey
"I have tried a carbide blade for cutting, it simply does not last that long, not on a chop saw on a miter saw."

I think you need to clarify this? Did you see the comment on the different RPMs the saws operate at?

Were you trying to cut 3/16 steel with a wood miter saw?

A carbide tooth blade will last a long time with the right RPM and cut 45 degrees with no problem.
 

metalmagpie

Well-known member
Joined
Nov 1, 2011
Messages
799
Location
Seattle
^^^ This. Thin blades for 90 degree cuts; thicker blades for angled cuts. That is most likely your problem right there. Try one at least 3/16" thick.

metalmagpie
 

kwb

Well-known member
Joined
May 1, 2009
Messages
1,780
Location
PNW
I rarely use my abrasive saw any more. I love my 9" steelmax on a lot of applications but a fixed saw does make a nicer cut.

My abrasive saw is an old belt driven one- what I should do is swap pulleys around and slow it down and go to a dry blade. I see no reason why I couldn't set my chop saw up to run at the right RPM. I might even make some of my cuts fit nice and not need to fill gaps when welding.
 
OP
D

dirtrunner0519

Well-known member
Joined
May 9, 2012
Messages
399
My blade thickness was 1/8" cutting 3/16", so maybe this is one issue. I will look at purchasing a better saw or different solution.

My mitre saw is one set speed as far as i know. I did not know you could change the speed of a mitre saw.

Thank you for the feed back.
 

Certified Drunk

Well-known member
Joined
Nov 20, 2011
Messages
532
Location
Seattle, WA
Since it's square tubing..
If you have the saw set at 45* towards the left, the piece on the left will be 45* and the one on the right side will be slightly off.
If you want a good 90*, "You will need to re-cut the piece on the left side..
 
OP
D

dirtrunner0519

Well-known member
Joined
May 9, 2012
Messages
399
Since it's square tubing..
If you have the saw set at 45* towards the left, the piece on the left will be 45* and the one on the right side will be slightly off.
If you want a good 90*, "You will need to re-cut the piece on the left side..

Thank you for this info. I will try this and see if it works.
 
To avoid these ads, REGISTER NOW!
Top Bottom