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Moire pattern in first layer calibration
 
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Moire pattern in first layer calibration  

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RedHeadedPixel
 RedHeadedPixel
(@redheadedpixel)
Active Member
Moire pattern in first layer calibration

While calibrating the Z-height for my first layer I have some Moire pattern action going on. Not sure how to proceeed at this point. Need help from more experienced folks. TIA.

Best Answer by JoanTabb:

It would appear that you are way too high. 

have you seen the Life Adjust 'Z' My Way, process by Jeff Jordan? 

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

that covers adjusting live Z on a Prusa Printer. 

this image shows how small differences in Live Z make Big differences in quality... 

the actual values shown are unique to MY Printer. yours will be different. 
none of my examples are as far above the build plate as your printer appears to be.

I suggest you follow the Life Adjust Z process... 

regards Joan

Posted : 13/01/2022 8:08 pm
Swiss_Cheese
 Swiss_Cheese
(@swiss_cheese)
Noble Member
RE: Moire pattern in first layer calibration

lower your Live Z your to high, way to high.

The Filament Whisperer

Posted : 13/01/2022 8:12 pm
RedHeadedPixel
 RedHeadedPixel
(@redheadedpixel)
Active Member
Topic starter answered:
RE: Moire pattern in first layer calibration

Thanks. I've lowered the z-height a lot more. Am I still too high?

Posted : 13/01/2022 8:35 pm
JoanTabb
 JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Moire pattern in first layer calibration

It would appear that you are way too high. 

have you seen the Life Adjust 'Z' My Way, process by Jeff Jordan? 

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

that covers adjusting live Z on a Prusa Printer. 

this image shows how small differences in Live Z make Big differences in quality... 

the actual values shown are unique to MY Printer. yours will be different. 
none of my examples are as far above the build plate as your printer appears to be.

I suggest you follow the Life Adjust Z process... 

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 : 13/01/2022 10:02 pm
Swiss_Cheese
 Swiss_Cheese
(@swiss_cheese)
Noble Member
RE: Moire pattern in first layer calibration

@redheadedpixel

 

Thanks. I've lowered the z-height a lot more. Am I still too high?

yes, try to follow Joantabb's example. you need to go much lower. the Life adjust Z, post that Joan made should help.

 

Regards

 

Swiss_Cheese

The Filament Whisperer

Posted : 14/01/2022 2:54 am
RedHeadedPixel
 RedHeadedPixel
(@redheadedpixel)
Active Member
Topic starter answered:
RE:

I will study Jeff's article now. Really appreciate the heads-up Joan. Many thanks. Swiss_Cheese too.

This post was modified 2 years ago by RedHeadedPixel
Posted : 14/01/2022 9:41 am
RedHeadedPixel
 RedHeadedPixel
(@redheadedpixel)
Active Member
Topic starter answered:
RE: Moire pattern in first layer calibration

FIXED IT!  Many sincere thanks to everyone. Especially Joan Tabb. My first layer now measures 0.2mm on my digital callipers.

Posted : 14/01/2022 11:01 am
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Topic Tags:  #z-height (1), #calibration (1),
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