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Thread: Dremel 4000 blowing up

  1. #1
    Join Date
    Jul 2020
    Posts
    48

    Post Dremel 4000 blowing up

    Hello, I'm Lou and new to the forum.
    I just wondered if anyone has ever had a Dremel 4000 blow up as in set on fire? It just happened today. The speed was intermittent and then it went really fast and set on fire but then quickly went out. So, I've just ordered a new one.
    I just wondered if anyone else had had this experience or if you might have an idea what could have caused it (if anything) other than it just reaching its expiry date? I had it for a couple of years.
    I use it with the flex shaft and am sure to have the main Dremel hanging above with the flex shaft then dropping down (like in the pictures you see of the product/ you tube videos I looked up ages ago) so I don't think it can be anything to do with this.
    Hoping the next one doesn't blow up any time soon.

    Thanks

  2. #2
    Join Date
    Feb 2016
    Location
    East Anglian
    Posts
    638

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    Thanks...I will keep a careful eye on my two. One pendant other in a vertical bench stand. Mine must be at least 4 yrs old.


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  3. #3
    Join Date
    Dec 2014
    Location
    South Australia
    Posts
    1,844

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    Dremels don't last long 2yrs is pretty good.

  4. #4
    Join Date
    Dec 2009
    Location
    Central London
    Posts
    8,845

    Default

    The only mistake you made there was to buy another one Lou. A Foredom flexshaft, or a moderately priced micromotor would perform infinitely better, without the surprise ending. Dennis.

  5. #5
    Join Date
    Feb 2016
    Location
    East Anglian
    Posts
    638

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    Oh dear. I must be lucky. Must admit my old 7700 is getting a bit odd with its switch.......bit late for a Christmas present....or is it?


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  6. #6
    Join Date
    Feb 2011
    Location
    Scotland
    Posts
    3,392

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    Hi Lou and welcome
    I agree with Dennis. Going on fire was a good opportunity to upgrade to a better product

  7. #7
    Join Date
    Jan 2019
    Posts
    76

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    Quote Originally Posted by CJ57 View Post
    Hi Lou and welcome
    I agree with Dennis. Going on fire was a good opportunity to upgrade to a better product
    Hi Lou, may I add my two pence worth on the back of Caroline's comment. I have just been through a similar experience, although the Dremel I had borrowed from my daughter for a year or so was handed back in working order. After much deliberation, research and asking the advice from these good people of the forum, I bought a Foredom pendant motor. My main gripe with the Dremel was the speed control and only having the two hands I was born with, one for holding the Dremel and one to hold my work. Hang on, how do I change the speed?... Changing the Dremel speed with my thumb whilst polishing or grinding just didn't work.
    A micromotor with incremental speed control on the foot pedal will do the same as the pendant motor.
    I hope this helps.
    Ian

  8. #8
    Join Date
    Feb 2016
    Location
    East Anglian
    Posts
    638

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    Have been looking at Foredom gear. There are so many different choices! Which represents the best combination / value please?
    Ruedeleglise.


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  9. #9
    Join Date
    Jul 2017
    Posts
    470

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    This will be incredibly unpopular I'm sure but I have a cheap manicure micromotor and it's fab, been using it for a couple of years now.
    And I have a cheap pendant motor that I can add a cheap hammer hand piece to. The anvil that came with the hand piece was rubbish, but with a couple of modified proper ones it's great. That said, this isn't my day job, I'm just a hobby maker. If I was doing this professionally I'd buy the best I could afford.

  10. #10
    Join Date
    Jan 2019
    Posts
    76

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    Quote Originally Posted by Ruedeleglise View Post
    Have been looking at Foredom gear. There are so many different choices! Which represents the best combination / value please?
    Ruedeleglise.


    Sent from my iPad using Tapatalk
    I bought the Foredom SR with the H20 quick release handpiece. If your drill bits and burrs have varying shank diameters, then the H30 with chuck key might be necessary but it's a bit chunkier in the hand. You can buy the SR with an accessory pack on rotating stand thrown in, most of which are useful. I love it!
    Ian

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