First layer markings on print
Hi,
My adhesions seem fine first layer when printing (from the top) looks ok) however bottom of my prints have strange markings on them like the ones in the attached picture:
Those are tiny dents next to each other, I cleaned the steel smooth sheet number of times but this issue happens regardless of how clean the bed is.
Any pointers will be greatly appreciated
Your first layer Z calbration may be the tiniest bit too low.
Cheerio,
RE: First layer markings on print
The pic of your zits is so bad no one is focused on what your words say.
I 've had some prints with multiple tiny voids/inclusions they are wierd, never sorted it, never a fail point, don't see it much lately.
do though, recheck a first layer cal. you are under squished in one area, and a bit tight in another.
again, post a focused pic, cropped to the area of concern
Hi,
My adhesions seem fine first layer when printing (from the top) looks ok) however bottom of my prints have strange markings on them like the ones in the attached picture:
Those are tiny dents next to each other, I cleaned the steel smooth sheet number of times but this issue happens regardless of how clean the bed is.
Any pointers will be greatly appreciated
RE: First layer markings on print
They are still happening on random places on the buildplate, in this example, it's just this one spot, that looks sort of like a large fingerprint, but also all the other places where there is a wall on top of that print have noticeable lines and the places that don't, sort of blend in together.
I think this is a better example, this is an edge with a wall on top versus the middle without the "fingerprint" which is 2x as big as my finger and the late was cleaned with ISO
RE: First layer markings on print
I didn't say that in previous post but I tried changing the layer hight, re-calibrating and changing the temperature for first layer none of which made any significant improivements
RE: First layer markings on print
how fast is your first layer speed?
It seems when the noz would be slowing, you have much more extrusion than the middle, where underextrusion becomes significant.
cleaning your extruder with canned air and a bright light might be in order as well
RE: First layer markings on print
my first layer is 20mm/s
how would I clean the nozzle with canned air?
i.e should I remove the nozzle blow it through and put it back?
RE: First layer markings on print
no, I was refering to the fliament path thru the extruder