Jump to content
Cura Connect | Survey Read more... ×
Ultimaker Community of 3D Printing Experts

Heat Sink Attachment

Recommended Posts

Hey all, so I took the cooling shroud off my UMO as part of the install for the heated bed upgrade, but when I was about to put it back on, I noticed that the heat sink for the Z stepper driver had fallen off. What's the best way to reattach this? Thanks!

Share this post

Link to post
Share on other sites

any glue used to fix a heatsink to the CPU of a PC will be OK


CPU coolers don't use glue, they use screws to be secured. Perhaps you mean thermal paste, the goo that goes in between the heat spreader on the chip and the cooler, but that doesn't really many gluing properties.

Share this post

Link to post
Share on other sites

well, given that the mentioned site for glue says:-



Arctic Alumina Thermal Adhesive is a permanent adhesive. Components you attach with Arctic Alumina Thermal Adhesive will stay attached forever.

so should you ever need to change the stepper motor you will have to buy a new heat sink.

I personally would use thermal paste - if you heve ever had to remove a heat sink from a CPU thats been secured with themal paste (I have many times) you will know it sticks down pretty well.

Themal paste is what I would use but its up to you - good luck

Edited by Guest

Share this post

Link to post
Share on other sites

I think there is a bit of confusion here. I believe the OP was asking how to reattach the heatsinks in the stepper DRIVERs not to the stepper motors themselves. I used the Arctic Alumina Thermal Adhesive on the heatsink for the drivers with good results. With such a small contact area, they can be removed with a small wrench and a twisting motion. Then you can scrape the adhesive off and clean with alcohol and reattach.

Note that for the drivers on the UMO, there is no mechanical mechanism to hold the heatsinks on like you would have with a CPU. So a thermal adhesive needs to be used.

In the states, the Arctic Alumina Thermal Adhesive is available at "good" electronics stores that sell computer parts like MicroCenter. Not sure where the OP is located but Amazon would be a good source too. Or a site like Newegg if they ship to the OP's location.

Share this post

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

  • Our picks

    • Architect Design Contest | People
      The goal of this contest is to design a set of people figurines that could be used in such a project to make an area, office or mall seem populated. 
      Think of different types of people in different environments, like walking people, people standing still, working people, and both men and women.
      • 31 replies
    • Taking Advantage of DfAM
      This is a statement that’s often made about AM/3DP. I'll focus on the way DfAM can take advantage of some of the unique capabilities that AM and 3DP have to offer. I personally think that the use of AM/3DP for light-weighting is one of it’s most exciting possibilities and one that could play a key part in the sustainability of design and manufacturing in the future.
        • Like
      • 3 replies

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!