Opinions on what could be causing these nasty edges?

I’m trying to dial this in and figure out what’s going wrong, so what I’ve done so far and my settings are:

  1. Homed Z and lowered it gradually until the value was 0
  2. Incrementally raised the offset until a 0.08mm feeler fit beneath it just enough to let you know it was touching both the nozzle and bed, but not causing it to bind up or jam in between. This resulted in an offset of 0.09.
  3. I set the offset in the START_PRINT macro, replacing the zeroing creality does by default
  4. I printed a 50.77x50.77x1.52 disc with Elegoo matte black with default quality/strength/etc at 220C with a bed temp of 65C after heating the nozzle, bed, and chamber (35C) for about a half hour prior to the test

This first pic is with the offset at 0:

This is with the +0.09 offset:

Thanks as always!

Hello Kris_Bee,

Just one question as I can not see it mentioned, what type of filament ?

Oh, one other question, what is the drink in the second photo and is it fruit based (I love fruit drinks).

Cheers.

Elegoo matte black and it’s just gatorade zero grape :slight_smile:

Ok, I will pass on that.
What I meant was is it PLA/PETG/etc ?
The reason is that if it is PLA the bed may be a tad to high and also the nozzle , also, if the chamber closed it needs to be open.

Cheers.

This is PLA. I can take the temps down a bit and take the top glass off. Should I skip the chamber warming then or keep it?

Hello Kris_Bee,

With my V3SE which is an open bed slinger I tend to print PLA at around 200 deg with a bed of 55.
For my Qidi Q1Pro which is enclosed I use the same temperature with the top half off and the door half open with no chamber warming.
In both cases all is well.
A temperature tower is always a good way to check different brands of filament as they may vary.

Cheers.

This is at 210C/60C and with the top off:


Did you do a flow calibration? Try also enabeling small area flow compensation?

I did and it seemed to like 100% flow. I didn’t enable small area flow compensation yet, but I did load a video up on it so I could understand what it is and how to use it. Thanks a lot for the suggestion I’ll be watching that later.

Never use chamber heat with PLA. The default PLA profiles should have it unchecked.
Are you sure it is enabled and if yes, did you enable it for any specific reason?

What i found is that the chamber heater creates a lot of bed warping even after heatsoaking etc. For PLA the heater is not needed and the temperature should automatically be set to 35°C.

Is the part solid or do you have infill?
How many top layers are you using?
Did you calibrate flow through the slicer or through the ai detection?

It was already set to 35 in the profile.

  1. It’s a testing primitive disc
  2. 5 Top shell layers
  3. Through Creality Print