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Switched to PETG from PLA and things went wonky  

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Nick
 Nick
(@nick-3)
Active Member
Switched to PETG from PLA and things went wonky

I switched to PETG after having PLA working well.  Worked at first then stopped doing it prints well at all.  I've reset the Z Level but it still fails at some point in the print.  I recently added a Prusa Blue PETG and it's still doing this.  Just added a Frog to print and it got so far and then started moving the print.  A very sad thing to see happen when we want to continue printing things that are fun and helpful in what I am doing.  Any help would be wonderful.  Obviously, I'm not sure how to keep the print from moving.   Different than PLA from what I understanding of things.  Let me know what I'm missing, please.  Still new at this.  Started in July.

Flexi Articulated Frog

Best Answer by fuchsr:

Usually PETG isn't hard to print. As @diem suggested, give the steel sheet a good cleaning with lots of hot water and additives-free dish washing soap. Get Live Z right. With those two steps you should get good adhesion. PETG likes to stick to itself (in fact, to just about anything), so I take extra care to make sure my nozzle is squeaky clean and I don't have anything stuck to the heater block that PETG might find attractive. I found the Generic PETG profile to work pretty well with most filament brands. Good luck!

Posted : 17/10/2021 3:15 pm
Diem
 Diem
(@diem)
Noble Member

i can see marks on the print sheet.  Try a thorough clean and see if adhesion improves.

Cheerio.

Posted : 17/10/2021 6:56 pm
Nick
 Nick
(@nick-3)
Active Member
Topic starter answered:
Will do

Yes, I can do that!  Thank you.  I've got a new sheet coming as well because I feel this one has been abused too much.  Learning has its hardships.  Cleaning the nozzle and more will help too.

Posted : 17/10/2021 9:19 pm
fuchsr
(@fuchsr)
Noble Member

Usually PETG isn't hard to print. As @diem suggested, give the steel sheet a good cleaning with lots of hot water and additives-free dish washing soap. Get Live Z right. With those two steps you should get good adhesion. PETG likes to stick to itself (in fact, to just about anything), so I take extra care to make sure my nozzle is squeaky clean and I don't have anything stuck to the heater block that PETG might find attractive. I found the Generic PETG profile to work pretty well with most filament brands. Good luck!

Posted : 18/10/2021 1:13 am
Nick
 Nick
(@nick-3)
Active Member
Topic starter answered:
Good advice!

Cool!  Thanks!  Will do that.  Thanks for the extra pieces of how to do it.  When I get time, later today, I'll get this clean and see where it goes from there.  Would like to have some of the things I am printing get finished!  Done some security camera pieces and have one part left!  

Posted : 18/10/2021 9:37 am
Nick
 Nick
(@nick-3)
Active Member
Topic starter answered:
Thanks again to both of you!

I was able to use your advice and get things moving again.  I did one on PETG and plenty on PLA in printing since I got it working again. Test type of pieces, but good ones!  Honest thank you for everything!

 

  Good Prints

Posted : 19/10/2021 11:36 pm
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