Jump to content
Ultimaker Community of 3D Printing Experts

Avoiding welded sensor / heater block with grease?


gdog
 Share

Recommended Posts

Posted · Avoiding welded sensor / heater block with grease?

Has anyone used anti-seize grease on the termistor / temp probe, or more ideally a thermal paste such as what is discussed here:  https://www.rotax-owner.com/en/912-914-technical-questions/3068-spark-plug-anti-seize-vs-heat-sink-compound .  I get the idea that these will both transfer heat and lubricate, but then again maybe stuck termistors aren't a common occurrence? 

  • Link to post
    Share on other sites

    Posted · Avoiding welded sensor / heater block with grease?

    In the UM2, the sensors do tend to get stuck in the nozzle heater block assembly indeed.

     

    I have been wondering about that question too. In the chemical industry all bolts and nuts got some anti-seize paste (don't remember the formula, but its color looked like dull silver); and in car- and ship-mechanics, people tend to use copper grease on all steel bolts. This not only lubricates, but prevents corrosion too.

     

    So maybe copper paste would do? At least, it should give good thermal contact. But I don't know if the grease would dry out or burn out at 260°C, and maybe cause more friction than using nothing at all?

     

    As for the white computer heat paste: that paste often seems to dry out and get hard and sticky, or it crumbles, after a couple of years. So I am not sure if that would be a good idea? Also, I don't know if it can withstand 260°C? Computer chips generally should not get much hotter than hand-warm, if you want some decent life out of it. Except for a few high-power amplifiers that can handle higher temperatures. So you would really need to make sure the paste can handle those high temperatures for a long time.

     

  • Link to post
    Share on other sites

    Posted · Avoiding welded sensor / heater block with grease?

    As far as I can remember I put some copper grease on the sensor and maybe also on the heater itself, don't know anymore. I haven't dismounted the Olsson block since then, but it is working with copper grease.

  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
     Share

    • Our picks

      • Ultimaker showcase | April 2022 | 4pm CEST | 10am EDT
        I'm excited because I've personally produced this showcase event, so if you are curious what else I'm up to nowadays, come check it out and say hi in the chat! It would mean a lot! 
          • Thanks
          • Like
        • 4 replies
      • New here? Get ahead with a free onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 11 replies
    ×
    ×
    • Create New...