11-16-2019, 04:20 AM
Hello everybody!
I got a couple of days ago an Elegoo Mars from Amazon (I don't know if that makes any difference, but mine doesn't have a batch number, in case helps
in identifying the model in any way.)
I'm seeing the same issue as xcyx: no print ever succeeded, not even the test print (two towers rooks) that came with the machine.
All the prints ends up stuck to the FEP layer (which got a couple of rinkcles after the first failed print).
I'm using two strips of masking tape on the short edges of the LCD as suggested to void suction on LCD itself.
Currently I'm thinking to change the FEP, in case the problem could be the damage from the first failed print.
Is it possible that the FEP is not tight enough? (this is how it came from the producer.) Before changing it I
wanted to be resolve the issue with adhesion though...
Things I tried:
- bed leveling as per manual, with a sheet of paper (Nothing stuck to build plate, rooks stuck on FET)
- bed leveling on the empty vat (Nothing stuck to build plate, rooks stuck on FET)
- bed leveling on vat on top of sheet of paper (Nothing stuck to build plate, rooks stuck on FET)
Now, in the last days I have done some testing and found out this:
- Prints seems to adhere decently fine along the long sides of the build platform, but not in the middle!
I printed 9 small squares 10x10x5 and the 6 on the lines come out fine. The three in the middle row got stuck on the FEP (no support used).
- Same conditions as the test above, but with the squares 'empty' (made a square hole in each of them, leaving a 1mm thick wall), this *should* reduce
vacuum on FEP (right?) because of smaller contact surface. No support. Analogous result as the previous test, just one more piece got stuck on FEP.
- The holding nuts for the build platform must be tighten really a lot to hod firmly the build plate itself (I?m not sure if this is normal, but
seems too aggressive to be correct)
Any ideas to try more?
Best regards
NOTE: attached the test files I used
I got a couple of days ago an Elegoo Mars from Amazon (I don't know if that makes any difference, but mine doesn't have a batch number, in case helps
in identifying the model in any way.)
I'm seeing the same issue as xcyx: no print ever succeeded, not even the test print (two towers rooks) that came with the machine.
All the prints ends up stuck to the FEP layer (which got a couple of rinkcles after the first failed print).
I'm using two strips of masking tape on the short edges of the LCD as suggested to void suction on LCD itself.
Currently I'm thinking to change the FEP, in case the problem could be the damage from the first failed print.
Is it possible that the FEP is not tight enough? (this is how it came from the producer.) Before changing it I
wanted to be resolve the issue with adhesion though...
Things I tried:
- bed leveling as per manual, with a sheet of paper (Nothing stuck to build plate, rooks stuck on FET)
- bed leveling on the empty vat (Nothing stuck to build plate, rooks stuck on FET)
- bed leveling on vat on top of sheet of paper (Nothing stuck to build plate, rooks stuck on FET)
Now, in the last days I have done some testing and found out this:
- Prints seems to adhere decently fine along the long sides of the build platform, but not in the middle!
I printed 9 small squares 10x10x5 and the 6 on the lines come out fine. The three in the middle row got stuck on the FEP (no support used).
- Same conditions as the test above, but with the squares 'empty' (made a square hole in each of them, leaving a 1mm thick wall), this *should* reduce
vacuum on FEP (right?) because of smaller contact surface. No support. Analogous result as the previous test, just one more piece got stuck on FEP.
- The holding nuts for the build platform must be tighten really a lot to hod firmly the build plate itself (I?m not sure if this is normal, but
seems too aggressive to be correct)
Any ideas to try more?
Best regards
NOTE: attached the test files I used