For how many prints/hours can the resin be kept in the vat?
 
Notifications
Clear all

For how many prints/hours can the resin be kept in the vat?  

  RSS
am-erik-a
(@am-erik-a)
Active Member
For how many prints/hours can the resin be kept in the vat?

I understand that the resin should not be kept in the vat while not printing, but when printing several parts sequentially, with the same resin (just refilling when necessary), is there a limit before you should empty the vat and clean the FEP film before a new print?

The reason why I'm asking is this: With a newly assembled SL1, I printed the three pre-sliced parts with the Prusa Orange Tough resin, ending with the Petřín tower. All went well. After the tower was finished, it took about three hours before I removed the tower from the build plate and started a new print job (number 4). I had then kept resin in the vat for all the prints (just refilling). Job number 4 failed; the print adhered to the FEP film. Could this be due to the long resin-FEP "contact time"? (In total or after the last print.) The build plate was cleaned with IPA between each print.

Posted : 22/08/2020 12:51 pm
Cornelia
(@cornelia)
Active Member
RE: For how many prints/hours can the resin be kept in the vat?

Hi Erik,

I've already seen people on YouTube who left the resin inside the vat for weeks, given that they put a lid on top of it to prevent UV-light and contamination from affecting the resin. They seemed to have no problems, although I personally never kept it for longer than a day inside the vat.

I've also had issues at the beginning of a new print before but that was due to bad bed-leveling and the fact that I forcefully had to remove the last print.

Posted : 22/08/2020 1:56 pm
am-erik-a
(@am-erik-a)
Active Member
Topic starter answered:
RE: For how many prints/hours can the resin be kept in the vat?

@conny

Thanks for the answer! Then I guess I can rule out "resin residence time" as the cause of my failure mentioned above. Maybe the build plate wasn't properly cleaned and dried.

Posted : 26/08/2020 12:19 pm
Share: