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

UMO bed does not lower every time after print

Recommended Posts

For the most part, my prints end up of pretty decent quality and the bed usually lowers after each print. Exactly how you would want it. Occasionally, it does not lower after the print, leaving the hot extruder in contact with the finished print. As you can imagine, this ruins an otherwise fair finish. Of course it typically happens with long prints, though it happens with shorter prints too.

Some Google Fu does not tell me what happens and how I can fix it. Do you guys have any idea? It is not game breaking, but it is becoming somewhat annoying. If I could prevent it, that would be great.

 

Share this post


Link to post
Share on other sites

This is weird. Today I printed a long print via a controller and I got the same result. Luckily I was standing right next to it, so I could prevent major damage, but there still is a dimple visible. I also noticed it did not quite finish the last layer. A small patch of about 1 centimeter square was left unprinted.

This is all quite odd, as the three hour print did not cause any trouble. Any ideas on how to fix this?

Update: this is very strange. Looking at the G-code, the troubled print just seems to end:

 


G0 F9000 X84.83 Y104.86
G1 F3000 X80.10 Y100.14 E3013.96344
G0 F9000 X79.54 Y100.14
G1 F3000 X84.26 Y104.86 E3014.00523
G0 F9000 X83.70 Y104.86
G1

While the correctly printing file has a footer:

 


G1 F3000 X32.06 Y42.14 E116.01087
G0 F9000 X32.34 Y41.30
G1 F3000 X34.82 Y38.82 E116.03279
M107
G1 F2400 E111.53279
G0 F9000 X34.82 Y38.82 Z13.15
;End GCode
M104 S0 ;extruder heater off
M140 S0 ;heated bed heater off (if you have it)
G91 ;relative positioning
G1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure
G1 Z+0.5 E-5 X-20 Y-20 F9000 ;move Z up a bit and retract filament even more
G28 X0 Y0 ;move X/Y to min endstops, so the head is out of the way
M84 ;steppers off
G90 ;absolute positioning
;CURA_PROFILE_STRING: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

I reexported the same file, and now a header appears. It seems Cura simply does not supply the full file at times. Is this a known problem?

 

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

    • 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!