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

Extruider motor stops moving

Recommended Posts

So, after two and a bit weeks of (mostly) sucsessful printing, i've encountered another issue. for some reason the stepper motor for the extrusion stops moving near the end of the print. I noticed this on multiple recent prints such as the (shorter) screw print of http://www.thingiverse.com/thing:8796 and other objects about as hight (but with diffrent mass (as far as that pertains with 20% fill)).

I checked the gcode for any anomalys in the file, but there dont seem to be any.

I just noticed the gears are still turning, but about as slow as the hour hand on a clock (i.e. its only visible if you look at it for a while).

Anyone have any suggestions?

I plan on switing the extrusion motor driver with one for an axis to see if that may be the issue... but other then defect hardware I don't have any Idea what it could be. (is there any sort of garantie for the mortors?)

attached is the gcode... maybe someone will find something unusual in there... though I doubt it, since i did re code it three times.

Thanks

Note: I switched the stepper drivers and the extrusion still stops. so the issue is either with the motor or the gcode.... hopefully?

Share this post


Link to post
Share on other sites

Today I tried printing some Gcobe that I spliced a few weeks ago (right after I finished building the um) and the issue is the same, which proves atleast that the gcode is not the problem.

so if it is not the driver or the gcode that leaves the controller board or the motor it self

does anyone know if there is a way to test the motor with out switching it out?

how do I controll the second extruder slot via gcode?

Share this post


Link to post
Share on other sites

this time I printed the calibration pyramid, and watched the extruider motor the entire time. It seemed like it simply got weaker up to about the middle of the print where it just stopped alltogether (including retraction). I took pictures of the results...

8255872326_eec9d3afc9_b.jpg

8255872436_c2ededc578_b.jpg

8255872202_fb6f9d4952_h.jpg

Share this post


Link to post
Share on other sites
Today I tried printing some Gcobe that I spliced a few weeks ago (right after I finished building the um) and the issue is the same, which proves atleast that the gcode is not the problem.

so if it is not the driver or the gcode that leaves the controller board or the motor it self

does anyone know if there is a way to test the motor with out switching it out?

how do I controll the second extruder slot via gcode?

You might try swapping your Pololu drivers to troubleshoot and see if that's the issue... Make sure you have completely disconnected the power before swapping them!

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

    • How to 3D print with reinforced engineering materials
      Ultimaker is hosting a webinar where we explain how you can achieve and maintain a high print success rate using these new reinforced engineering materials. Learn from Ultimaker's Product Manager of Materials and top chemical engineer Bart van As how you can take your 3D printing to that next level.
      • 0 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!