Print Stopping before test line  

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harry.m2
(@harry-m2)
New Member

Recently my I3 MK3 has been unable to begin prints. It starts the heat up, runs the calibration and then stops in the corner, just before doing the test line.

The printer says it's progressing, but nothing happens.

The filament isn't extruding, but when changing it works and extrudes fine, so I'm stuck.

Any ideas?

This topic was modified 6 months ago by harry.m2
Posted : 15/02/2020 3:28 am
chocki
(@chocki)
Prominent Member

Have you made any changes to your startup g-code? or loaded someone else's model complete with g-code recently?

Normal people believe that if it ain’t broke, don’t fix it. Engineers believe that if it ain’t broke, it doesn’t have enough features yet....
Posted : 15/02/2020 12:10 pm
harry.m2
(@harry-m2)
New Member

@chocki

I haven't really changed anything with my process, but I'll try check if I've changed anything within the defaults and see how I go. 

 

Thanks 😀

Posted : 15/02/2020 12:54 pm
Robert-mm200
(@robert-rmm200)
Noble Member

The no-ooze startup code has the extruder wait in that position to "heat soak" It will not move until it is "soaked".

I changed my startup code to reduce the "soaked" temperature because I did not want to wait as long.

Posted : 15/02/2020 5:26 pm
chocki
(@chocki)
Prominent Member

Have a look in your prusa slicer, printer settings custom-G-Code and see if there is a line like this:

M860 S35

If there is, and you print mainly PLA, then change the 35 to 30.

What this does is wait for your bed leveling sensor to heat up to 35 deg C using heat from your heat bed, but if printing with PLA, you may only be heating the bed to say 60 deg and the PINDA may not get warmed up enough, and will sit at say 31 Deg.

You can try a lower value to see if it prints OK, and to be honest, most users will probably manage without the line in at all, just some of us are a bit OCD 😉 myself included and try to eek out every last bit of quality from our printers.

Try the lower figure first (I would actually just set it to 20 for testing) if this line exists, then post back.

Normal people believe that if it ain’t broke, don’t fix it. Engineers believe that if it ain’t broke, it doesn’t have enough features yet....
Posted : 15/02/2020 8:08 pm
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