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Thread: What is wrong with my metal chop saw?

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    What is wrong with my metal chop saw?

    What is wrong with my metal chop saw?
    When I try to make a cut, my blade is starting to wander instead of holding firm where it is. Does this just mean the blade is dull? Or is there something worse going on?

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    Re: What is wrong with my metal chop saw?

    Where is it flexing, at the outer edge, or on the inner portion? Have you verified for squareness?
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    Re: What is wrong with my metal chop saw?

    What type blade? Sometimes abrasives get glazed and do not cut without much pressure. If carbide, did you bind it causing a bend? Is your spindle tight?

    Are you starting cut on long flat side of material rather than corners?

    If carbide then blade could dull

    Have you used this saw successfully in the past?

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    Re: What is wrong with my metal chop saw?

    I got a similar behavior. I put a different blade in mine and it is a floppin' and flexin' back and forth while making cuts. Never noticed it prior to changing the blade.
    It is a Norton brand blade, not sure which line or model.
    Sure makes me nervous and forces me to wear a bit extra PPE.
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    Re: What is wrong with my metal chop saw?

    From OP:
    What is wrong with my metal chop saw?
    When I try to make a cut, my blade is starting to wander instead of holding firm where it is. Does this just mean the blade is dull? Or is there something worse going on?
    Quote Originally Posted by tapwelder View Post
    What type blade? Sometimes abrasives get glazed and do not cut without much pressure. If carbide, did you bind it causing a bend? Is your spindle tight?

    Are you starting cut on
    long flat side of material rather than corners?

    If carbide then blade could dull

    Have you used this saw successfully in the past?
    Good Questions.
    Why do so many people ask such questions without giving almost any information about the equipment or its history, the materials, the specific situation or any pictures that might show some of that?


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    Last edited by Oldiron2; 1 Week Ago at 03:25 PM.

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  8. #6
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    Re: What is wrong with my metal chop saw?

    Quote Originally Posted by Oldiron2 View Post
    From OP:



    Good Questions.
    Why do so many people ask such questions without giving almost any information about the equipment or its history, the materials, the specific situation or any pictures that might show some of that?

    Maybe because they are new here, and haven't been properly roasted yet?
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    Re: What is wrong with my metal chop saw?

    I agree 👍

    Dave

    Quote Originally Posted by whtbaron View Post
    Maybe because they are new here, and haven't been properly roasted yet?

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    Re: What is wrong with my metal chop saw?

    Could also be worn bushings/bearings in the saw itself...
    The harder you fall, the higher you bounce...

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    Re: What is wrong with my metal chop saw?

    The main problem is it’s not a band saw. (Sorry Goodman, I could not resist).

    I gave up on my abrasive saw once I got a band saw. I rarely use it anymore because of noise, sparks, inaccuracy, and flying hot metal.
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    Re: What is wrong with my metal chop saw?

    A good one.

    I did not use a chop saw as ground up to must of bar.

    If make 20 cuts on bar and chop saw has 1/4" wide cut that is 5" of bar stock ground up on the floor.

    Dave

    Quote Originally Posted by wb4rt View Post
    The main problem is itís not a band saw. (Sorry Goodman, I could not resist).

    I gave up on my abrasive saw once I got a band saw. I rarely use it anymore because of noise, sparks, inaccuracy, and flying hot metal.
    Last edited by smithdoor; 1 Week Ago at 08:46 AM.

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  16. #11
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    Re: What is wrong with my metal chop saw?

    Hello, is it an abrasive saw?



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    Re: What is wrong with my metal chop saw?

    I guess I should use the abrasive saw.
    The best place for abrasive saws is thin gauge metal. At point a thin abrasive saw blade can be used.

    I think some like sparks fly as they cut steel.

    Dave

    Quote Originally Posted by MetalMan23 View Post
    Hello, is it an abrasive saw?



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    Re: What is wrong with my metal chop saw?

    Best place for an abrasive saw is in the dumpster

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    Re: What is wrong with my metal chop saw?

    I agree 👍

    Dave

    Quote Originally Posted by MetalMan23 View Post
    Best place for an abrasive saw is in the dumpster

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    Re: What is wrong with my metal chop saw?

    Quote Originally Posted by MetalMan23 View Post
    Best place for an abrasive saw is in the dumpster

    Sent from my fab shop using a mig welder and a grinder
    "Best place for a stubborn, opinionated, abrasive (and here, wrong) poster is in ....

    Speaking of dumpsters, there have been times when I have happened to come upon stuff in dumpsters that didn't fit in the car, was too big, heavy or weird-shaped to belong tied to the roof, and where a portable abrasive saw would have been quite useful. Sawzalls and similar tools can't always do the job as well...


    .
    Last edited by Oldiron2; 1 Week Ago at 05:02 PM.

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    Re: What is wrong with my metal chop saw?

    Post a photo of how you have your material set up in the vise before you make a cut.
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    Re: What is wrong with my metal chop saw?

    Quote Originally Posted by Broccoli1 View Post
    Post a photo of how you have your material set up in the vise before you make a cut.
    Doesn't look like the OP has ever been back to check on the answers /questions.... is that fridge full?
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    Re: What is wrong with my metal chop saw?

    Sounds typical .

    Dave

    Quote Originally Posted by whtbaron View Post
    Doesn't look like the OP has ever been back to check on the answers /questions.... is that fridge full?

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    Re: What is wrong with my metal chop saw?

    Here are photos. Notice how instead of cutting straight down, the cut starts wandering to the side creating a V shape on that side.

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    Re: What is wrong with my metal chop saw?

    Although some enlargement shots of the blade might show it better, it appears many of the blade's carbide tips are chipped or badly broken. If it cut fine until now, either the material was too hard, something wasn't tight allowing irregular and excessive contact area, or the carbide had previously been damaged (perhaps cooled with water when still quite hot?).
    What was that piece you tried cutting? Looks like an abrasive saw would have been better for it.

    BTW, posts can be edited for a short while after submitting. If pictures aren't oriented correctly and need editing, go to your Settings page and near the bottom left, open Attachments in a new tab. Find the offending one in at the top of the list on the right, delete it, modify the one on your computer, and download it instead.

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    Re: What is wrong with my metal chop saw?

    Quote Originally Posted by Oldiron2 View Post
    What was that piece you tried cutting? Looks like an abrasive saw would have been better for it.
    .

    A good observation and the reason why although I have and love my dry cut saw I will NEVER get rid of the abrasive chop saw I purchased new over 40:years ago.




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    Re: What is wrong with my metal chop saw?

    Quote Originally Posted by ngoodman@gmail.com View Post
    Here are photos. Notice how instead of cutting straight down, the cut starts wandering to the side creating a V shape on that side.
    That blade is shot to sh(#. Did you notice you are missing at least 10 carbide teeth and there's a lot more that are damaged, and those are what actually do the cutting? It's no wonder it's not cutting straight because it's not cutting, and with the pressure being put on it, it creates a counter-clockwise torque, twisting the blade out of square. You simply need a new blade and let the blade do the work, and also don't try to cut anything other than what the blade is rated for. Case closed, the prosecution rests, no further questions your honor.
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  33. #23
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    Re: What is wrong with my metal chop saw?

    If you allow a carbide bladed saw to slam or hit the work piece it will break teeth. This can happen based on how hard the saw kicks when it turns on. Or if the return spring has weakened.
    If the clamp is not tight and the work piece spins, it will break teeth.
    If you are placing material in the clamp and it is off balanced and hits the teeth, it will break teeth.
    If the outbound side flips up or binds on the blade, it will break teeth.

    Ask me how I know

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    Re: What is wrong with my metal chop saw?

    Sorry If this is a dumb question but can I simply put an abrasive saw blade on this saw?

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    Re: What is wrong with my metal chop saw?

    The saw had worked fine up until this point. Where I noticed I was having a lot of trouble was when I was simply trying to cut rebar. I didn’t think rebar would give me any problems. Perhaps the damage had occurred just prior and I did not know it. Or, I made the mistake of not tightening the clamp tight enough or something similar that caused the damage.

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