What is causing this 'fuzz'? See attached photo.

PETG @ 255 nozzle and 80 bed temps.
New .04 nozzle.
Gcode used was Cura 3.4.1.

Any ideas appreciated.
dlw

Is that the top of the print? I would guess too hot or too far from the bed.

---

Newbie with Folgertech 2020 i3.

Are you sure you're printing at the right temperature? It seems a bit high for PETG in my admittedly limited experience (my reel says 195C - 220C nozzle, 35C - 50C bed).

printing petg currently on a mk2 clone (0.4 nozzle)

hotend 240 bed 90

so yea 255 seem way to hot. if its reading correctly

Printed a temperature tower, 260 - 220c; and it looked bad from top to bottom.
Will start over. level bed with nozzle. Start first print at 200c, then up or down.

Will keep you posted.
dlw

Improvements.
One on left printed @ 255 x 60c.
One in middle @ 240 x 60c.
One on left @ 230 x 60c.

I think my problem might be solved at 230 x 60c or maybe even lower.
However, a bigger problem is the filament does not stick to bed until the third layer and then it peels up and makes a mess as shown in all three of the above.
Once past that, the print is better but has 'sections'. How are these 'sections' prevented.

Any suggestions appreciated.

What are you using for the print surface? Mine is glass and I put aquanet on there. When I have trouble with it not sticking it is because I am too far from the bed. You could try a higher bed temp too. I am doing 245/80 for temps on the microcenter petg I have been using.

---

Newbie with Folgertech 2020 i3.

Glass transition of PETG is 80-85C. I would say that 70-75C is optimum