Jump to content
Ultimaker Community of 3D Printing Experts
Sign in to follow this  

Heated Bed Build

Recommended Posts


So I am making some progress with my heated bed build. So far, I've gotten:

PCB heatbed -


This mosfet:

http://www.datasheetcatalog.org/datashe ... B603AL.pdf

a 10k thermistor

a 12V @ 20A power supply from

http://www.ebay.com/itm/110840547570?va ... 1497.l2649

and a sheet of kapton film

http://www.ebay.com/itm/280813434730?ss ... 113wt_1193

I just ordered some 3/8" polycarbonate


I plan on making a mount out of the polycarbonate for the PCB (polycarbonate should easily handle the required temp), temp sensor will connect to the bottom of the PVC (I will probably have a big chunk of the bottom cut out so the PCB can heat and cool more quickly). The mosfet will be inline with the power supply, and connected (along with the thermistor) to the ultimaker control pcb -- thus it will not drain any current from the ultimaker. And I'll just cut a piece of kapton to fit on top. I can switch to glass if it doesn't work well, but I happen to have a ton of kapton film that i can't use for my original application so I'll try to use it here.

Hopefully it will not be too difficult to calibrate it all.

Anyhow, let me know if anyone has any thoughts. i'll post build progress here..

Share this post

Link to post
Share on other sites

I've been working on a heated bed myself. I've got the bed powered using a surplus xbox360 slim power supply, but I haven't hooked it up to the Ulticontroller yet.

When you get the mosfet wired in, can you post pics and/or a wiring diagram? The wiki says you can wire it directly somehow, but it's not clear enough for non-electrical duffs like me.

My bed is machined from .25" aluminum. the top face had a rough surface, so I lapped it on a surface plate and applied a layer of kapton to both sides.


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
Sign in to follow this  

  • Our picks

    • Ultimaker Cura | a new interface
      We're not only trying to always make Ultimaker Cura better with the usual new features and improvements we build, but we're also trying to make it more pleasant to operate. The interface was the focus for the upcoming release, from which we would already like to present you the first glance. 
        • Like
      • 18 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 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!