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

command structure usb --> marlin

Recommended Posts

Hello,

To write a small program to dump gcode to marlin through the usb port, how does the command structure on on the usb port looks like?

In other words, what command on the usb port do i need to make the x-stepper move 1 step to the right?

I do not want to harm our beautifull ultimaker and we do not have a test configuration, therefore i want to be a little carefull before i start dumping hex codes on the arduino.

(other movements also welcome)

 

Share this post


Link to post
Share on other sites

The Ultimaker shows up as a serial port om your computer. The commands to control The Ultimaker via the Marlin firmware are Plain text command called G-Code.

I don't know if a Marlin specific reference of G-code exists, but a general documentation for reprap descendant machines like the ultimaker is available at http://reprap.org/wiki/G-code.

For the actual command set you can check https://github.com/bkubicek/Marlin/blob/master/Marlin/Marlin.pde, which contains the Marlin source code for communications.

regards, Johan

 

Share this post


Link to post
Share on other sites

The baud rate is fixed when the firmware is compiled. 250000 is generally used for Macs and Windows connections. I think the 115200 baud versions of the firmware are used with Linux machines because there are (were?) problems getting the kernel to reliably support higher speeds.

So, you need to know what speed the firmware is expecting you to talk to it, and then talk at that speed, or else you'll get gibberish.

 

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  

Announcements

  • Our picks

    • Architect Design Contest | Vehicles.
      We're open for entries! - Design and submit your 3D designs of architectural entourage - vehicles - for a chance to win a large filament pack. Presenting an idea, an architectural design or something as big as an urban project isn't easy. A scaled model can really help to get your idea across.
        • Like
      • 24 replies
    • What The DfAM?
      I'm Steve Cox, an experienced engineer familiar with 3D printing. I wanted to share some DfAM guidelines with this community to help and make stronger parts.
      I'm also an Autodesk Certified Instructor for Fusion 360, so many of the images in ...
        • Thanks
        • Like
      • 18 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!