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Thread: SawStop Brake Cartridge Trips

  1. #1
    Join Date
    Mar 2021
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    Sothern Coastal Maine
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    16

    SawStop Brake Cartridge Trips

    During the last week I tripped the brake on my StopStop three times. The first trip when I was cutting a piece of MDF that had been veneered on both sides using regular Titebond. The piece had been out of the press for over 48 hours. I thought that the glue must not have completely cured.

    The next trip was three days later. The piece that tipped it was from the same batch of veneer and was out of the press for over five days. I didn't understand how it could have tripped.

    The last piece was the next day it it was just a piece of MDF. I was shocked that it tripped the brake and called SawStop support. I was told that this has been happening frequently. The data from the returned cartridges shows that the MDF has tiny metallic strips as filler. The believe that the pandemic has caused the problem, both at the factories using new materials to make MDF along with retail stores having to use different sources to get product to sell. They said that a large cabinet shop had been tripping five cartridges per week and traced the start of the problems to the start of using a new supplier for MDF.

    I will be running MDF cuts in bypass mode for a while.

  2. #2
    Join Date
    Oct 2014
    Location
    Pittsburgh, PA
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    75
    Wow, thanks for the info. Haven't cut any "new" pieces of MDF recently, but I'm certainly going to consider using bypass mode as well.

    Where did you get the MDF? Do you happen to know the manufacturer?

  3. #3
    Join Date
    Mar 2021
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    Sothern Coastal Maine
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    I was only doing a small job so I purchased a pre-cut 2'x4' piece of 1/2" MFD from Home Depot in Portsmouth NH. I will check if I can find info about the manufacturer.

  4. #4
    Join Date
    Apr 2008
    Location
    Edmonton, Canada
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    2,342
    Wow, that has been a costly experience. Thanks for the heads up. Why would they use metal in MDF, that is abrasive on the blades regardless.

  5. #5
    Join Date
    Mar 2021
    Location
    Sothern Coastal Maine
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    16
    Three cartridges and two blades. I think that the third blade is ok, but will sent it out to Ridge Carbide be sharpened.

    The SawStop rep said that some factories use the cheapest filler that they can get. He mentioned that the products that they have been able to trace have been made offshore.


    Quote Originally Posted by mreza Salav View Post
    Wow, that has been a costly experience. Thanks for the heads up. Why would they use metal in MDF, that is abrasive on the blades regardless.

  6. #6
    Join Date
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    Ouch. Sorry that happened and thank you for reporting it here.
    I always forget . . . Is it the letter "S" or the letter "C" that is silent in the word scent?
    - Glenn (the second "N" is silent) Bradley

  7. #7
    Major bummer but so appreciate the heads up on this thanks.

  8. #8
    Join Date
    Sep 2016
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    Modesto, CA, USA
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    5,918
    I would contact homer depot. there is an implied contract that what they sell as mdf is mdf and it can be used and handled by ordinary wood working tools. I feel they sold you faulty "wood" and should reimburse you for destroyed tooling costs. It would be different if it just caused faster wear. Reminds me of formica as filler in cat food.
    Now I know why MDF is denser then real wood.
    Bill D.

  9. #9
    Seems like another reason to avoid MDF. Besides the terrible dust.

    Sorry you had this experience and thanks for the heads up.

  10. #10
    Join Date
    Jun 2008
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    So Cal
    Posts
    2,907
    Glad I donít have a sawstop.
    When I get a good tablesaw blade Iím very careful how I treat it.
    Aj

  11. #11
    Join Date
    May 2008
    Location
    Peshtigo,WI
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    997
    Could you stick a magnet in the sawdust and see if any of it sticks, to verify if there's metal in the MDF?
    Confidence: The feeling you experience before you fully understand the situation

  12. #12
    Join Date
    Apr 2018
    Location
    Cambridge Vermont
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    1,519
    I would try using a multimeter on the factory cut edge. Since you have a "bad" piece you could try both the resistance and capacitance settings to see what you get for a measurement. I'm assuming that you can't see shiny flakes of metal in the MDF. If you have a piece that you cut successfully you could see if you can measure a difference. It could be something like aluminum or so small that a magnet may not be useful.

  13. #13
    Join Date
    Apr 2005
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    Central MA
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    Quote Originally Posted by Jim Dwight View Post
    Seems like another reason to avoid MDF. Besides the terrible dust.

    Sorry you had this experience and thanks for the heads up.
    Seems like another reason to avoid SawStop...

  14. #14
    Join Date
    Apr 2013
    Location
    Okotoks AB
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    2,771
    Quote Originally Posted by John Lanciani View Post
    Seems like another reason to avoid SawStop...
    Please don't tell me we're going to resurrect that tired old rant again.

  15. #15
    Join Date
    Apr 2013
    Location
    Kansas City
    Posts
    1,812
    Thanks for the warning.

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