Hey guys i am left scratching my head with this one i have calibrated filament i have re timed the machine i have replace the hot end clean and oiled the gear barings on the extruder check all bowden tubes everythign is clean, and well maintained.
I recently shifted back to pla basic, from pteg hf because of the colour options but i cannot get a smooth print i am using the 3d plates i dont know if i have the right temp i know the out of the box settings for the pla are not great but i expected a much better print out of pla i have enclosed a picture, could you eagle eyed people help me trouble shoot i have no idea as the internet is a wash with so called must do setups.
so here i am using this setup
so basically temp of 220c, flow rate same as (standard best result) plastic dried for 12 hrs at 50c in sunlu s4
yes i printed with the door open it doesnt look so bad in smaller pics if you right click picture open in new tab and zoom in it looks terrible stringing all over the place and deep extrusion lines in places.
i am following the advice on this, changed the settings uped the flow rate to 0.99 just to see if it clears the under extrusion which i am guessing is what is happening and i am printing this.
to see how much cooling ect i need and as its fast print, i dont mind doing a few test so will keep all posted. see if i can yeild some results that can help others.
I’m unclear on what your not happy with your print. If I understand you correctly, this photo is showing the surface that was in contact with the build plate? Is that correct? And what you don’t like is the stroke lines from the filament. Is that also correct?
It would help to understand what your comparing it to. Do you have an example of a print that was more to your liking? I ask because if you’re comparing let’s say white filament to black, black is far less forgiving to what appears from you photo to be normal lines.
That being said, if you want to reduce the lines in contact with the build plate, the best option would be to increase the temperature of build plate and increase the temperature of the filament and last but not least, slow the first layer down to 50%.
The affect of these three things is that the filament will be molten longer and will allow for more flow before it “glassifies”. Also not that some filaments like Bambu’s PETG HF and Elegoo’s Rapid PETG have additives which help with smoothing flow that PLA does not have. I’m not saying that’s what’s happening with your PLA but it could be a factor. If you were using a higher speed PLA, it could have some of those “smoothers” in the recipe thus making for a different flow dynamic.
Before you waste more filament, why not try printing some simple 2mm high cube shape primitive samples and take photos of that from different filaments you’re using. A 50x50x2mm cube would show a lot and you can print it quickly without wasting a lot of filament.
hi sorry yes i wasnt clear lol, so yeah it just seems very messy not the usual print quality i had from my a1 with pla i dont really have anything to compare it too, as most my prints on the p1s was pteg hf, which was ultra smooth.
i dont like the lines because i think they may be under extrusion but i am not to sure.
my build plate is 65c but on pteg i used to be at 80c so not sure if that would be a sweetspot. shall test thank you for your advice i shall take it on board and test accordingly
and the heat test that i printed failed with spagetti so i think you are right maybe i need to knock the build plate temp up i think it got half way up and the bottom of the print completely unstuck.
oh and no that is the back side of the print the front looks good witht he carbon effect
Terminology: That is the “Top surface” that you are unhappy with. The “Bottom surface / Initial layer” is what is impregnated with the carbonfiber textured buildplate.
Looking at your slicer screenshot, that model might not get any infill, all tops bottoms and walls… This means you need your flow calibrated very well to get a good top surface. There is no void for overextrusion to escape to. This can manifest as buildup that gets dragged around, and it wisps off when you zhop.
That wisping can also be caused by humidity, although I find it rare to occur in PLA. Drying is always a good idea
Ironing is also a thing to try but that is (IMO) a can of worms as far as settings go.
Thank you i shall take that on board, top surface yes thats the one.
I see so like maybe some more infill might just give the layers a lift to look smoother i do remember watching a video about this, it was a test print and a reason to use the carbon fiber look haha
i really do need to print some cubes off, what do you do when the calibration models are all showing under extrusion there wasnt one smooth result from 0 to - 10 and above
This would be the one i watched, you see i went from owning an ender 3 last year to upgrading to the a1 with ams and then to a p1s about 6 months ago petg the prints are almost flawless the lines are amazing.
but pla i forgot a lot with the filament i am drying all plastics i have a guage that shows me humidity levels and they register 10% in the ams unit and 17% in the bambulabs studio.
you might be onto something with the infill though i always assume the slicer fixes everything. thats why i am trying to learn not only how to print but how to troubleshoot, and know what to tweak if any imperfections show up.
