Problems cutting with new chop saw - S-10 Forum
 
LinkBack Thread Tools
post #1 of 13 Old 03-12-2015, 01:16 PM Thread Starter
Registered User
 
AWD V8's Avatar
 
Join Date: Jan 2009
Location: Surrey, BC, Canada
Age: 65
Posts: 6,904

User is: 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.

Thanks


I'm not old, I'm ripe - My LS Jeep project
AWD V8 is offline  
Sponsored Links
Advertisement
 
post #2 of 13 Old 03-12-2015, 04:06 PM
Registered User
 
njrextreme's Avatar
 
Join Date: Jul 2011
Location: Manhattan Il
Age: 39
Posts: 241

User is: njrextreme is offline
Re: Problems cutting with new chop saw

Get a steel cutting miter saw blade.
njrextreme is offline  
post #3 of 13 Old 03-12-2015, 07:08 PM Thread Starter
Registered User
 
AWD V8's Avatar
 
Join Date: Jan 2009
Location: Surrey, BC, Canada
Age: 65
Posts: 6,904

User is: AWD V8 is offline
Re: Problems cutting with new chop saw

Problem solved

Exchanged the chop saw for a band saw. Total cost, $500

Cuts 3" channel in 1.5 minutes. Also I can work while it's cutting. Also is quite. Also doesn't make a big mess of my shop.


I'm not old, I'm ripe - My LS Jeep project
AWD V8 is offline  
 
post #4 of 13 Old 03-13-2015, 09:01 AM
Tech Mod
 
beandip's Avatar
 
Join Date: Sep 2006
Location: South, OK
Age: 31
Posts: 30,700

User is: beandip is offline
Re: Problems cutting with new chop saw

odd. i never really have problems with my dewalt chop saw. i have been looking into buying a cold saw too. slower rpm, and no sparks.

But if you cut angle iron it will take a long time if you start on a flat surface. you have to angle the piece so the least amount of steel contacts the blade at once. either way only problems i had with mine was cutting real thick stuff. like 1/4" wall 4x4 tubing. but the plasma cuts faster of course.

A band saw is real nice especially if you pay the money for a nice unit.

-Jonathan



2000 Sonoma Extended cab 2.2L 5 Speed with Hurst short throw shifter, 3/4 Drop on staggered gray boss 338 18s, Flowmaster original 40 series.
My Project thread--->https://www.s10forum.com/forum/f30/pr...driver-361848/

{PROJECT ZR2} 2000 S10 ZR2 200,XXX miles, 31x10.5 BFG KM2 MT on 15" Pro Comp 152s, Iron front diff, 1.5" T-bar crank & custom bumpers & shackles, + more
https://www.s10forum.com/forum/f30/be...ct-zr2-485836/

1992 GMC Jimmy - Project Daily Beater Status/Ordinary beater
https://www.s10forum.com/forum/f30/da...status-520683/

2009 Harley Nightrain

2008 Silverado 2500- "the usual" done to it.

1984 CUCV - Rock crawler
beandip is offline  
post #5 of 13 Old 03-14-2015, 08:19 PM
Bagged
 
chevy power's Avatar
 
Join Date: Nov 2004
Location: Canal Fulton Ohio
Age: 30
Posts: 2,209

User is: chevy power is offline
Send a message via AIM to chevy power
Re: Problems cutting with new chop saw

I've had a smiliar problem cutting flat bar. Assuming you had it in there laying flat it will take forever. I know the right way is to have it flat to maximize cutting wheel life but it does what you described. 2" wide flat stock would not fit up right in my ryobi saw I dont think, so I would probably use the plasma cutter for it. The bandsaw is all around better, I want one but do not have the extra room for it at the moment. Damn is the chop saw messy too!
chevy power is offline  
post #6 of 13 Old 03-24-2015, 10:21 AM
Hardhead
 
Join Date: Aug 2012
Location: Iowa
Posts: 755

User is: eshaw is offline
Re: Problems cutting with new chop saw

I cut a piece of 4" x 1/8" yesterday with my chop saw. You need to place the steel in the clamp so the thin side (1/4") is facing up. Works a lot better than laying it flat. The band saws are great but you really should set it up so that it gets coolant on the cut section. It will make cutting easier and prolong your blade life.
eshaw is offline  
post #7 of 13 Old 04-03-2015, 11:44 AM
Registered User
 
Join Date: Feb 2005
Location: CT
Age: 33
Posts: 71

User is: Vinnysmini is offline
Send a message via AIM to Vinnysmini
Re: Problems cutting with new chop saw

I have heard people having issues with the chop saw where the blade is heating up the metal and causing it to work harden similar to a heat treating process. If you're cutting box tubing with the chop saw, it usually is tough to cut near the corners but once you get through that thick area it should cut better. Band saw definitely looks nice.
Vinnysmini is offline  
post #8 of 13 Old 04-05-2015, 04:51 PM
Afterhours Admin
 
AVTekk's Avatar
 
Join Date: Feb 2002
Location: NJ
Age: 37
Posts: 27,191

User is: AVTekk is offline
Re: Problems cutting with new chop saw

You obviously had the material laying flat. Stand it up and it'll go right through. 2nd problem is the Mikita, dewalt is the only one worth buying. And ya, jabbing it down will get through it. I too use other tools to cut material now but I started with the dewalt chop saw years ago and won't get rid of it.


Serving the Tri-state: New Jersey - New York - Pennsylvania[/center]
AVTekk is offline  
post #9 of 13 Old 04-06-2015, 02:24 AM
Tech Mod
 
beandip's Avatar
 
Join Date: Sep 2006
Location: South, OK
Age: 31
Posts: 30,700

User is: beandip is offline
Re: Problems cutting with new chop saw

Only way i will get rid of mine is if i get a cold saw. but even so the regular chop saw will still have its place in my garage.

-Jonathan



2000 Sonoma Extended cab 2.2L 5 Speed with Hurst short throw shifter, 3/4 Drop on staggered gray boss 338 18s, Flowmaster original 40 series.
My Project thread--->https://www.s10forum.com/forum/f30/pr...driver-361848/

{PROJECT ZR2} 2000 S10 ZR2 200,XXX miles, 31x10.5 BFG KM2 MT on 15" Pro Comp 152s, Iron front diff, 1.5" T-bar crank & custom bumpers & shackles, + more
https://www.s10forum.com/forum/f30/be...ct-zr2-485836/

1992 GMC Jimmy - Project Daily Beater Status/Ordinary beater
https://www.s10forum.com/forum/f30/da...status-520683/

2009 Harley Nightrain

2008 Silverado 2500- "the usual" done to it.

1984 CUCV - Rock crawler
beandip is offline  
post #10 of 13 Old 04-15-2015, 12:44 AM
eco-ten
 
bagged83dime's Avatar
 
Join Date: Feb 2007
Location: acampo, ca
Age: 31
Posts: 517

User is: bagged83dime is offline
Re: Problems cutting with new chop saw

The blade can glaze and wont cut for shit, just run the saw and lightly tap the blade with the edge of a scrap peace of steel the knock the glaze off. It will cut like crazy after thatjust be careful. I use a chop saw at the shop all the time and every once in a while it will do that

bagged83dime is offline  
post #11 of 13 Old 04-20-2015, 08:22 AM
Registered User
 
Dark Age 53's Avatar
 
Join Date: Apr 2015
Posts: 170

User is: Dark Age 53 is offline
Re: Problems cutting with new chop saw

Quote:
Originally Posted by njrextreme View Post
Get a steel cutting miter saw blade.
A cold cut saw turns at half (or less) the RPM's of a abrasive saw, the metal blade will become useless in a very short time if you install it on anything other than a cold cut saw. JMO
Dark Age 53 is offline  
post #12 of 13 Old 04-20-2015, 09:10 AM
always something new
 
S10dude's Avatar
 
Join Date: May 2006
Location: Sacramento,Ca.
Age: 65
Posts: 54,490

User is: S10dude is offline
Re: Problems cutting with new chop saw

yup

All truck pics
http://s93.photobucket.com/user/sdim...?sort=3&page=1.........


Marc .........."01" ExCab 2.2 - 5sp ......On Air......
.......... 2014 Harley Street Glide Special ......on Air
S10dude is offline  
post #13 of 13 Old 04-27-2015, 10:50 AM
Registered User
 
Join Date: Jul 2014
Age: 33
Posts: 15

User is: Briman2021 is offline
Re: Problems cutting with new chop saw

Also, with the band saw, don't turn work so the thin side is facing up whenever possible. The rule of thumb is to have 3 teeth of the saw blade in contact with the work, otherwise your blade life will be greatly reduced.
Briman2021 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the S-10 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.


Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome