First Layer Of Resin Won’t Stick To Bed
Hello all,
My printer was working perfectly for a few days and then began to produce spaghetti. In other words, a continuous stream of resin resulting in what looks like a mound of pubic hair (sorry for the graphic description). Funnily enough, when running the calibration test, the zig zag prints out correctly as does the horizontal test like that the printer produces at the bottom left of the steel bed just before starting a print job.
I also followed the instructions to clean the nozzle with the acupuncture needle.
I’m not sure what else to try and will appreciate any advice.
Thanks in advance
here
Best Answer by rmm200:
Ahem - I meant a calibration surface as in the link I gave you.
The built-in one is fairly worthless...
But even from that - I can say your Z is way too high.
Print a decent, big calibration surface, and as it is printing, lower Z until your filaments start to merge. No separate strands.
RE: First Layer Of Resin Won’t Stick To Bed
First off, you are more likely to damage your nozzle than help it with that needle.
Start with a clean build plate (Dawn, Hot water, scrub drill).
Then print a calibration surface for us to look at. Odds are your Z is incorrect or your plate is dirty.
RE: First Layer Of Resin Won’t Stick To Bed
@robert-rmm200
What is "Dawn"? Anyway, I have cleaned the steel plate (scraper, isopropyl alcohol and even tried a layer of glue). I've also tried various different Z calibrations but I certainly hope that it is something as simple as you have mentioned. I've had this machine for 5 days and I'm halfway through building something for a university assignment.
RE: First Layer Of Resin Won’t Stick To Bed
RE: First Layer Of Resin Won’t Stick To Bed
Ahem - I meant a calibration surface as in the link I gave you.
The built-in one is fairly worthless...
But even from that - I can say your Z is way too high.
Print a decent, big calibration surface, and as it is printing, lower Z until your filaments start to merge. No separate strands.
RE: First Layer Of Resin Won’t Stick To Bed
So, this is my printer trying to print the Prusa logo that comes with the SD Card. I will try the z-adjustment. Even so, do you have any other advice? Has this happened to you as well?
RE: First Layer Of Resin Won’t Stick To Bed
Ok, I think it's better now. I lowered the nozzle to -0.842 and the print job already looks waaaaaay better.
Thanks a lot,robert-rmm200
RE: First Layer Of Resin Won’t Stick To Bed
And DAWN is a dish soap we use when cleaning the spring steel PEI coated print sheet. We wash them at a sink in hot water using paper towels to scrub off our finger prints. Then handling by the edges we dry with a new paper towel and handling by the edges replace the now clean sheet on the printer.
Alcohol simply spreads oils around the sheet. Scrapers damage the PEI. And glue is used to reduce bed stickiness/adhesion for things like PETG.