Comparison between the "Jeff-Jordan" live-z adjust and actual first layers of part prints
 
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Comparison between the "Jeff-Jordan" live-z adjust and actual first layers of part prints  

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spiff72
(@spiff72)
Trusted Member
Comparison between the "Jeff-Jordan" live-z adjust and actual first layers of part prints

I see pretty good print quality on the calibration layer print G-code I have been doing from Jeff Jordan here (using the latest PETG gcode).  However, I get not-so-nice looking first layers on my parts that look like the attached photo.  (Rough texture, variable color - maybe variable thickness?).

I am wondering if this is a print speed difference.  The print photos shown here were printed with a pretty slow speed.  Does anyone know what the print speed of that square is?  I am experimenting to get the best adhesion vs smoothness on my first layer, and I want to see if setting my first layer speed equal to that on the test square will make it look more like the test square.

My first layer speed is set to 33% relative to other speeds, and my solid infill speed is 60mm/s  (so speed of first layer "fill" should be 20mm/s).

Attachment removed
Ce sujet a été modifié il y a 5 years 2 fois par spiff72
Publié : 30/07/2019 11:38 pm
bobstro
(@bobstro)
Illustrious Member
RE: Comparison between the "Jeff-Jordan" live-z adjust and actual first layers of part prints

If that picture is showing your 1st layer, and if you've gotten good results with Live-Z calibration...

  1. Is that the same filament that you used for doing Jeff Jordan's "Life Adjust" procedure?
  2. Have you calibrated your extrusion multiplier for that specific filament? It looks like it's over-extruding.

 

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Publié : 31/07/2019 11:50 am
spiff72
(@spiff72)
Trusted Member
Topic starter answered:
RE: Comparison between the "Jeff-Jordan" live-z adjust and actual first layers of part prints

Yes that is the first layer.  I will print a calibration square photo later on for reference.

1. Yes - same filament as the calibration square.

2. No I haven't - not familiar with that process.  I will look into this further.

Thanks!

Publié : 31/07/2019 1:23 pm
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