Hi everyone, Can anyone advise me why my printer at print time stops for

3D Printing
, , ,
1

Hi everyone,

Can anyone advise me why my printer at print time stops for about 1 second, and then prints on next paths? At this time, the material material leaking and leaving a thick bruise. Gcode is from cura 2.3.1. Is there some parameter responsible for such behavior when printing?

2

Find your controller board and point a fan at it. While that is being fan cooled, watch it and then tell us if it behaves better. If it does, perhaps your current is set too high or you have an enclosure that has the controller in it and helping it over heat.

3

Thanks, but this is not loosing steps. In two the same prints printer stops in the same positions - the same places with leaking on the print.

4

I do not know which boards miss steps and which boards pause the print during mosfet overheating, but I am under the impression some do pause.

5

Too low of current would definitely miss steps.

6

By the way, information about your printer would help people help you.

7

How are you printing? via SD card or USB - if latter it may be an issue of the host machine slowing down, or fault in the USB cable. If SD, try using another card - it may be a corrupt card. If you have LCD on your printer see the buffer size when it pauses - if that is zero it is definitely a communication issue.

8

Does this happen more on small areas of a print than large ones? Example: when printing a pyramid, is it fine until it gets to the top layers of the pyramid, then is starts waiting? If so, then your printer is waiting for the previous layer to cool before printing the next one. If that’s the case, you might want to increase the amount of retraction for each stop.

9

@Daniel_Kusz leaking on the print as in you were printing the boat that people seem to love printing as a test print?

10

Is this a printer your built yourself? Some settings in firmware can be responsible for this, additionally retraction speed being set far too low can cause this as well.

Damn it. @Branden_Coates beat me to it.

11

Wht… How are you guys so fast answering question… everytime I see a post with questions chances are 4 or 5 people already on it…

12

@Step_Cia that’s why everyone comes here for help. Because everyone is already here helping! :smiley:

13

@Step_Cia well, I personally have no life and for now have no job so…that makes it easy to answer quick. Android tablets and phones chim when you have the G+ app installed, so that helps too.

14

Thanks for answers and sorry for missing informations about my printer. This is custom bowden h-bot 3d printer working on Replicape. My retraction is 6,5mm with 100mm/s. So I print files straight from board and will try increase acceleration and jerk in firmware.

15

@Elias_Bakken , anything you might be able to think of that might cause 1 second stutters at the ends of lines?

16

Have you printed this GCode before?

Two thoughts occur to me:

  1. The GCode is faulty - trying another slicer would eliminate this.
  2. Host to printer communications are stalling. This would show at random print locations though.
17

@Daniel_Kusz @ThantiK , If it is a complex model, increase the buffer wait time and play with the other settings in the path planner. http://wiki.thing-printer.com/index.php?title=Redeem#Planner

18

@Elias_Bakken @ThantiK I increased print_move_buffer_wait to 500ms but did not help. Here is short video with problem: https://www.youtube.com/watch?v=9Y8cnlXrrrU
Sory for poor focus. I wil try more with other settings.
@Neil_Darlow For two prints the same situation took place in the same places. I will try slic3r.

19

It looks a lot like the problems I saw with fast speed and a complex model (a bust), and the problem was resolved by increasing one of those settings. I can’t remember exactly which one, though.

20

@Elias_Bakken You think this is too complex and too fast for Stealthchop?

missing/deleted image from Google+