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Charles Jacques
(@charles-jacques)
New Member
Z bed ajustement

Hi, 

I would need your help for my MK3 

I have a problem printing because my bed isnt leveling correctly 

 

I have made XYZ calibration to many times

My screw under the bed are correctly torque 

My pinda probe is working and is ajusted with a tool i have found on prusa forum 

Could it be possible that the X  under the heat bed is the problem ? 

Why my pinda probe dont ajust the height by it self ? 

Thank you for your help I dont know what to do 

 

This topic was modified 4 weeks ago by Charles Jacques
Posted : 21/04/2024 5:51 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Z bed ajustement

Hi Charles Jaques, 

your build plate looks dirty, as it you have the remainder of glue stick on the surface. and it also looks like the right hand side of the heatbed is out of adjusement

What I Would suggest  is cleaning your build plate really well,  I do not use adhesive, nor do I Use Fystec build plates.   I Just  wash the Prusa Build plate with Hot water and dish soap, rubbing really well, to remove all grease and surface contaminants, I Keep a new clean kitchen sponge, especially for this purpose
Then  I Rinse the build plate well with plain hot water and dry immediately with plain paper towels, (I DO NOT USE IPA, or ACETONE)

Readjust your Z axis 
with your printer at idle, press the LCD Knob for a  couple of seconds and you should enter the Z height Menu, use the knob to run the Extruder all the way to the top of the Z axis, you should hear a  vibrating noise, as the X axis end pieces bump into the top stops on the Z axis.   If you dont hear this, press the reset button on the LCD panel, briefly then when the LCD returns to the normal display, use the knob to raise the Z axis until BOTH sides of the Y axis rattle against the Z axis top stops. 
this should make sure your X axis is parallel to your heat bed and build plate
now check your first layer calibration again

I use the 'Life adjust Z My way' process... in preference to Prusa's built in first layer calibration routine

https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-assembly-and-first-prints-troubleshooting/life-adjust-z-my-way/

there are test files for mk3 and Mini, at the bottom of the first post in the thread
Regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 21/04/2024 6:31 pm
Charles Jacques
(@charles-jacques)
New Member
Topic starter answered:
RE: Z bed ajustement

Hi Joan Tabb, 

Thank you for your help 

I know my plate look dirty but the surface as been attacked by a product there is no remainder of anything on it and if I turn my plate 180 ° the result is the same so i dont think its the plate itself the problem 

I also tried with differents plates 

For the axe Z I have already have made this step and it didnt help 

If you any other suggestion I am open thank you again 

Posted : 21/04/2024 8:23 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Z bed ajustement

are you using 3x3 mesh bed levelling?
Or 7X7  Mesh bed levelling>

I use 7X7 wirg magnet compensation on, and 3 test prints at each point

regards Joan

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 21/04/2024 8:49 pm
Charles Jacques
(@charles-jacques)
New Member
Topic starter answered:
RE: Z bed ajustement

Yes  i use 7 x 7 

3 mesure and comp aim (on)

Posted : 21/04/2024 9:17 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Z bed ajustement

Have you cleaned build plate with  soap and water? as recommended? and tried a print again?

regards Joan

 

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 21/04/2024 10:41 pm
Charles Jacques
(@charles-jacques)
New Member
Topic starter answered:
RE: Z bed ajustement

yes i saw a similar post on a forum and tried it 

Posted : 22/04/2024 12:04 pm
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