Live adjust Z question
Hi all,
Near two years of printing with my prebuild i3 MK2/s I run into bigger trouble these days.
BTW statistic says: 52 days and usage of around 2.5km filament 😛
Ok, in short what happend: my first real clogged nozzle 🙁
Reason for this was a little too hight temp and this causes filament leaking between heatblock and heatbreak.
Now I had to disassemble the extruder parts to clean all this again. Good time to replace my nozzle too, so I thought.
But now the problems started. Took me some time to adjust the pinda height and successfully calibrate all again.
(set all neded values to zero, then xyz calibrating with success)
I'm printig with ABS and my idea was to use an often used model , with 25 lines of brim around this, to adjust the layer height now.
Yes, it worked, I had to adjust to -315 which I think is nice enough. The resulting piece was near perfect.
And now the bad thing, which I really don't understand up to now:
I let the printer cool down again (bed and nozzle) but didn't switched the printer off.
Took a different model and startet this print. The time, bed and nozzle was heated up, the printer made the intro line and..
The nozzle was too high again, I had to adjust (Live adjust Z) from -315 to near -600 to own the correct layer-form again.
What did I wrong? What part do I miss here?
Do I have to use the inbuild layer adjust (which needs PLA) to save the value I adjusted permanent?
The former -315 was still sightable and not shown as 0.
Any ideas, advice what I should do to make the Live adjust Z value permanent?
BTW. using latest firm- and software.
Re: Live adjust Z question
Reason for this was a little too hight temp and this causes filament leaking between heatblock and heatbreak.
This leak is often due to improper nozzle tightening: There should never be any gap between the nozzle and heat break because this is the seal surface. There should never be plastic on the threads.
I'd recommend you remove and reinstall the new nozzle, but carefully follow the nozzle replacement guide, make sure the nozzle is NOT bottoming out against the heater block, and tighten at 280c per the guide.
If this isn't the issue, a photo of your nozzle can help with understanding the problem more clearly.
Re: Live adjust Z question
What did I wrong? What part do I miss here?
Do I have to use the inbuild layer adjust (which needs PLA) to save the value I adjusted permanent?
The former -315 was still sightable and not shown as 0.
Any ideas, advice what I should do to make the Live adjust Z value permanent?
BTW. using latest firm- and software.
You need to reset live Z to zero then print something that contains the G87 code to set your printer to save the live-Z value. Pretty sure there is an ABS test square which has the needed code in the first posts in the 'life adjust z my way' thread here on the forums.
Bill
Tagaytay City, Philippines
Founder member of Philippines Prusa Printer Owners FB Group
Sponsor Pillars of God Academy in Bacoor
Re: Live adjust Z question
Thank you Bill, that was what I missed.
I inserted G87 at the end of the 'ending-script' of my ABS test model and now it works fine with all other tested ones too.
Thanx again.
Just wondering why this is not done by pressing the encoder button at the end of the adjust z procedure.
Must have a reason I can't see in the moment, so I just say: 'Why easy if you could make things complicated'