Not sticking to glass build plate
Hi, My new Ender-3 v2 stopped printing. The filament will not stick. I have tried many things and suddenly it started working again for a couple of prints. No idea what actually worked but I think that I have figured out the cause. I noticed that after the start script ran and the item actually started to print that the filament was just curling up on the tip. Looks like the build plate is coated in Teflon but what I found is that the print head had moved away from the build plate by several thicknesses of 20lb paper, yes, I had 'leveled' the print bed immediately prior to starting the print.
I have not made any changes to the settings as I do not know what most do so I am open to any suggestions.
I am done! Sorry Creality but 4 months and only reliably printed out of the box without any calibration and only during the first 20 days or so. As of today, I have received many, numerous suggestions to level the build plate. NOT the issue as far as I can see. Print head lifts after the Start G-code but does not drop down again.
Not a good investment IMO as a single print once a month with strings and blobs all over the print is not good for anything but the trash. I do not understand how a CNC device can be SO finicky. I have invested a LOT of time and money in filament, upgrades, and FRUSTRATION.
Last response received was 12/6/20 and I am DONE. Love to have my time and money returned but 30-day policy fixes that.
Glass build plate and PLA => Wipe over with watered down PVA glue. The PLA bonds to PVA nicely and its more forgiving for bed levelling as the nozzle can plough through the PVA a little without clogging the nozzle.
Glass build plate and ABS / ASA => Clean with IPA. Cover with Kapton tape. Wipe over with IPA before print to remove grease. Try to get to 100C though 90C will do.
I fought 5 days with a new ender 3 V2. First 3d printer ever. Was about to call it Hewlett Packard. Some things I've noticed:
- X-axis gantry will easily get uneven if the wheels are too tight on one side or other, or if the main frame is uneven
- Z-Motor is not perfect aligned, this makes the Z lead-screw to be crooked and the X gantry doesn't slide up and down as it should. Ive printed a spacer for this.
and what fixed for me:
TL DR: Setting the Z-Offset at the firmware with pronterface tool
I had added a BL Touch to avoid leveling hassle (at the time I still had the X Gantry uneven). I did miss the step of adding the Z-offset and since Im new to 3d printing I did not realize the bed was too far away. the nozzle wiped always worked, everything else was a disaster, even with slow speed raft (which took alone 20mins). check the ender 3 v2 FAQ page at Marlin's site.
Until I realized that Ive tried so many things... ive managed to fix the skew gantry by loosening and tightening the wheels on the Y profiles. Theres a good youtube video on that for the ender 3 pro.
Ive cleaned the bed with ipa, with water and soap, added glue stick, wasted about 100g PLA 😀 now with proper settings I have a hard time even removing the prints from the bed. WOW
have since then printed 5 models in over 24 hours without any issue. longest model 4 Hours print, sent from octoprint.
How about cleaning the glass plate with isopropanol alcohol? Did you tried it?