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New PLA brand = new first layer calibration ?  

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Bnoa17
(@bnoa17)
Active Member
New PLA brand = new first layer calibration ?

Hello!

I use to print with Prusament PLA only on my Prusa i3 mks3 and I have good results with it.

But I have a new spool from an other brand : Geeetech PLA grey 1.75mm.

When printing with it I have several quality problems.

I have more stringing/oozing, so I have reduced the temperature of the extruder and it's a little bit better.

I've got under extrusion problem too so I am playing thiw the flow (extrusion multiplier) to tried to deal with it and find the goods parameters but I was wondering :

Do you think I have to do a new 1st layer calibration due to the new PLA spool ? or just the flow adjustment should be suffisant ? because If I do a new 1st layer calibration I may encounter the same problem when using Prusament again ?

Thank you

Benoit

 

 

Posted : 10/04/2020 3:37 pm
bobstro
(@bobstro)
Illustrious Member
RE: New PLA brand = new first layer calibration ?

I always create a new filament profile for every new brand and type. I find the filament diameter varies by manufacturer, and that the appropriate extrusion multiplier varies by filament type. It takes 20 minutes when I get a new type of filament in, but it saves a lot of problems and grumbling later.

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 10/04/2020 3:59 pm
Bnoa17
(@bnoa17)
Active Member
Topic starter answered:
RE: New PLA brand = new first layer calibration ?

Thank you for reply Bobstro! So If I understand your reply you make a new PLA profile with propers settings for this new PLA but you don't do again the 1st layer calibration? 

Posted : 10/04/2020 4:12 pm
Bnoa17
(@bnoa17)
Active Member
Topic starter answered:
RE: New PLA brand = new first layer calibration ?

And Bobstro, If I can ask you: what kind of tests/prints are you using to calibrate the new  PLA?

Thank you very much! 

Posted : 10/04/2020 4:17 pm
Bnoa17
(@bnoa17)
Active Member
Topic starter answered:
RE: New PLA brand = new first layer calibration ?

And Bobstro, If I can ask you: what kind of tests/prints are you using to calibrate the new  PLA?

Thank you very much! 

Posted : 10/04/2020 4:18 pm
Bnoa17
(@bnoa17)
Active Member
Topic starter answered:
RE: New PLA brand = new first layer calibration ?

And Bobstro, If I can ask you: what kind of tests/prints are you using to calibrate the new  PLA?

Thank you very much! 

Posted : 10/04/2020 4:18 pm
cwbullet
(@cwbullet)
RE: New PLA brand = new first layer calibration ?

I have had to do the same.  Some, I even have to adjust the first layer with.  

--------------------
Chuck H
3D Printer Review Blog...
Posted : 10/04/2020 4:58 pm
bobstro
(@bobstro)
Illustrious Member
RE: New PLA brand = new first layer calibration ?
Posted by: @bnoa17

And Bobstro, If I can ask you: what kind of tests/prints are you using to calibrate the new  PLA?

Here are my notes on my process. It's not exact, but it quickly gives me good results.

 

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 11/04/2020 12:30 am
cwbullet
(@cwbullet)
RE: New PLA brand = new first layer calibration ?

Thanks @bobstro

That is pretty close to what I do also.  

--------------------
Chuck H
3D Printer Review Blog...
Posted : 11/04/2020 1:09 am
Bnoa17
(@bnoa17)
Active Member
Topic starter answered:
RE: New PLA brand = new first layer calibration ?
Posted by: @bobstro
Posted by: @bnoa17

And Bobstro, If I can ask you: what kind of tests/prints are you using to calibrate the new  PLA?

Here are my notes on my process. It's not exact, but it quickly gives me good results.

 

Thank you very much for your help Bobstro! I will try with that! 

Merci 

👍 👍 👍 😀

 

Posted : 11/04/2020 12:24 pm
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