joseph.r12
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Re: life adjust Z - my way

Wed Feb 14, 2018 1:00 am

Jeff,

Many thanks! The V2 calibration wasn't doing it for me. Your larger calibration surface is just what the doctor ordered. Helped me dial in my Mk3.

Again, thanks for the gcode and the explanation as to why to do it.

Joe

jan.f8
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Re: life adjust Z - my way

Tue Feb 27, 2018 12:03 am

I'm new here, been trying to adjust z to the best of my capabilities but something is weird.

I have vertical stripes on y-axis (far most left and then every 30 mm) in the print that looks strange, and even though I think the first layer is nice on one hand, it just looses adherence in the middle of the print. Not sure why. Was told the axis are perpendicular so I got that going for me.

I followed the middle live z paper wiggle test and got the value to around -1.020 (should I lower the pinda even more?)

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IMG_20180227_000913304.jpg (2.35 MiB) Viewed 835 times
IMG_20180227_000907063.jpg
IMG_20180227_000907063.jpg (1.49 MiB) Viewed 835 times

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BillCampbell
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Re: life adjust Z - my way

Tue Feb 27, 2018 5:34 am

I followed the middle live z paper wiggle test and got the value to around -1.020 (should I lower the pinda even more?)
Not necessarily.

I had a live Z of 980 and after checking with the credit card while paper was just dragging, I found I was too low. Raised the pinda to allow the card to just slide under and live Z dropped to 460.

On the paper test, don't trap the paper so that it cannot move - you just need to feel the drag. That's how I get my best results.
Bill
Tagaytay City, Philippines
Founder member of Philippines Prusa Printer Owners FB Group
Sponsor Pillars of God Academy in Bacoor

jan.f8
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Re: life adjust Z - my way

Tue Feb 27, 2018 8:55 pm

Close but no cigar?
IMG_20180227_214536622.jpg
IMG_20180227_214536622.jpg (1.79 MiB) Viewed 810 times


Had to change bed level calibration but I still get this strange vertikal lines. Should I just ignore or?

printingrookie
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Re: life adjust Z - my way

Fri Mar 02, 2018 9:39 am

The minimum I can get is 0.22mm rather than 0.20mm. Is this a big deal? Could the extrusion multiplier be the culprit here?

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JeffJordan
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Re: life adjust Z - my way

Fri Mar 02, 2018 1:05 pm

printingrookie wrote:
Fri Mar 02, 2018 9:39 am
... Could the extrusion multiplier be the culprit here?
yes, might be.
but even inaccuracy in the diameter of the nozzles borehole could be a reason.
dem inscheniör is' nix zu schwör...

barry.m2
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Re: life adjust Z - my way

Sun Mar 04, 2018 2:47 pm

jan.f8 wrote:
Tue Feb 27, 2018 12:03 am
I followed the middle live z paper wiggle test and got the value to around -1.020 (should I lower the pinda even more?)
If you are seeing -1.020 on the live Z your pinda is a little too low. When you are setting live Z, you are adjusting the position of the nozzle relative to where the pinda senses, that point being the zero point. So, at -1.020 you are moving the nozzle 1.020mm closer to the bed. If you want that distance to be smaller, then you need to raise the pinda so that it senses with the nozzle a little closer. Higher the pinda=lower the nozzle=less negative adjustment (needed or available) for live Z. Live Z will be different from printer to printer, pinda to pinda and often filament type to filament type (PETG doesn't need to be as low as PLA, for instance).

Hope this helps. If you already knew this, then my apologies!

barry.m2
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Re: life adjust Z - my way

Sun Mar 04, 2018 2:50 pm

jan.f8 wrote:
Tue Feb 27, 2018 8:55 pm
Close but no cigar?

IMG_20180227_214536622.jpg



Had to change bed level calibration but I still get this strange vertikal lines. Should I just ignore or?
Right front corner of your bed is a touch too high. If you use the hyper fine leveling build, you need to raise point C a little.

david.h61
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Re: life adjust Z - my way

Sun Mar 18, 2018 10:07 pm

Thank for this. Used version 4 to get mine set -1050 still might be a little high measured 0.22 mm sample. PRUSA logo printed fine.

aric.v
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Re: life adjust Z - my way

Wed Mar 21, 2018 12:58 am

Quick question. Does this calibration need to be done on the heat bed or can it be done on the PEI sheet as well?

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