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

Building Marlin for UMO with direct drive, 2nd extruder and official HBK?

Recommended Posts

I just installed the official HBK and I have a Marlin quandary. I have corner mount direct drive, and I swapped the X axis from Ginge's Marlin Builder rather than switching motor pins. I also have a second extruder I am developing for cold paste. The Cura machine configuration wizard doesn't have an option to deal with my direct drive or my second sensor-less extruder, and for Ginge's Marlin Builder I'd need to know which heated bed temperature sensor to pick. Does anyone know what heated bed temperature sensor pick is baked into Cura?


Share this post

Link to post
Share on other sites

// 20 is the PT100 circuit found in the Ultimainboard V2.x

#define TEMP_SENSOR_BED 20


Thank you, but damn, if I am reading the HTML source right, it looks like Ginge's builder UI does not have an option to set TEMP_SENSOR_BED to 20, assuming that the option values are directly used to populate the TEMP_SENSOR_BED #define before building, and not part of a look-up. The drop-down options are:



<option value="0">NO heated bed</option>

<option value="1">100k thermistor - Usually this one!(4.7k pullup)</option>

<option value="-1">thermocouple with AD595</option>

<option value="-2">thermocouple with MAX6675 (only for sensor 0)</option>

<option value="2">200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)</option>

<option value="3">mendel-parts thermistor (4.7k pullup)</option>

<option value="4">10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!</option>

<option value="5">100K thermistor - ATC Semitec 104GT-2 (Used in ParCan) (4.7k pullup)</option>

<option value="6">100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup </option>

<option value="7">100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)</option>

<option value="8">100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)</option>

<option value="9">100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)</option>

<option value="10">100k RS thermistor 198-961 (4.7k pullup)</option>

<option value="60">100k Maker's Tool Works Kapton Bed Thermister</option>

<option value="51">100k thermistor - EPCOS (1k pullup)</option>

<option value="52">200k thermistor - ATC Semitec 204GT-2 (1k pullup)</option>

<option value="55">100k thermistor - ATC Semitec 104GT-2 (Used in ParCan) (1k pullup)</option>

Can anyone think of a cheap-n-cheerful way around this?


Share this post

Link to post
Share on other sites

Ah well, I'll build it myself. I did so a year or so ago on my old iMac where I had an Arduino development environment set up anyways. I'm on a new PC now that I have not yet brought up to full kit. I guess I'll fire up the iMac and see if it's all still there. Either that, or just switch the motor pins on X like so many do, and use the Cura wizard.


Share this post

Link to post
Share on other sites

You can try this one: https://bultimaker.bulles.eu/

It is definitely not as extensive as Ginge's Marlin Builder, but it is current with 'official' UM firmware, and I think it might work for you want to do...


YES! It has everything I need, even custom settings for the second hot end temp sensor. I just used it, and the printer is now happily printing calibration objects on a hot bed. (I'll mess with the 2nd extruder later.) Thank you!


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
      • 130 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!