PLA printing gone funny...  

RE: PLA printing gone funny...

Hi Rob, 
are you using a 0.4mm nozzle? (Standard fitting)
are you using 7x7 mesh bed levelling? If not please turn it on using the LCD Menu, 
are you using Prusa Slicer?  if so, which profile are you using? 
did this file print better on the other side? 
was there a problem on the other side
What did you use to do your first layer calibration (Live Z)?  if you don't already use it  I suggest that you try  'Life Adjust "Z" My way'
https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-assembly-and-first-prints-troubleshooting/life-adjust-z-my-way/
there are three test files for use with the 0.4mm nozzle, at the bottom of the first post. 

How do you clean your Build plate? 

I wash mine Vigorously with hot water and a tiny bit of dish soap, rinse well, and keep my fingers away  from the build surface, handling the build plate by the edges
I Dry immediately with plain  paper towels 
For PLA I don't use any other surface treatment, 
for PETG and TPU you can use windex or one of many other options to reduce the surfce adhesion

Good luck, 
Joan

RE: PLA printing gone funny...

And your layer one quality is looking a bit messy. You might want to read up on how to set Live-Z to get a cleaner layer one. There's a longish thread "Jeff's Life Z" or some such you can search for (yes, the thread is misspelled). 

It might be this thread: 

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

RE: PLA printing gone funny...

Posted by: @joantabb

Hi Rob, 
are you using a 0.4mm nozzle? (Standard fitting)

yes

are you using 7x7 mesh bed levelling? If not please turn it on using the LCD Menu, 

yes, using

are you using Prusa Slicer?  if so, which profile are you using? 

yes, the green basic/beginner/turkey one...

did this file print better on the other side? 

yes

was there a problem on the other side

nope, came out well

What did you use to do your first layer calibration (Live Z)?  if you don't already use it  I suggest that you try  'Life Adjust "Z" My way'
https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-assembly-and-first-prints-troubleshooting/life-adjust-z-my-way/
there are three test files for use with the 0.4mm nozzle, at the bottom of the first post. 

Will try this on the weekend. I get the idea.

I cleaned it with Isopropyl

Will

How do you clean your Build plate? 

I wash mine Vigorously with hot water and a tiny bit of dish soap, rinse well, and keep my fingers away  from the build surface, handling the build plate by the edges
I Dry immediately with plain  paper towels 

thats' me

For PLA I don't use any other surface treatment, 
for PETG and TPU you can use windex or one of many other options to reduce the surfce adhesion

Tried windex and it is better but still sticks a bit in places.

Will report back on weekend.

Thanks a lot 

Rob

Good luck, 
Joan

RE: PLA printing gone funny...

@tim-m30

Thanks mate, will have a go on the weekend.

R

RE: PLA printing gone funny...

Thanks for that. Problem solved and now I get it.

I did up a square in Fusion 360 as you showed and did four of them around the build plate. By the time I finished printing them it was sorted out.

Thanks so much for helping.

https://photos.app.goo.gl/RkjE5MtZ8M8VgMbJA

My next puzzle is better PETG non adhesion. Will try using even more of the Windex stuff.

Rob