Thanks Pomeroy
GUYS! Last night I did a test print with super long settle times (30s) between layers. This helped tremendously...virtually no bulging. Also increased Z height from 30um to 50um which helped the resin settle between layers. I'm thinking about getting some Spot A to test next to try to get these settle times lower. So excited about this
Bulging effect on top down DlP printer.(solved)
-
- Posts: 115
- Joined: Sun Jun 15, 2014 8:49 am [phpBB Debug] PHP Warning: in file [ROOT]/vendor/twig/twig/lib/Twig/Extension/Core.php on line 1266: count(): Parameter must be an array or an object that implements Countable
- PomeroyB
- Posts: 168
- Joined: Thu Mar 27, 2014 9:51 pm [phpBB Debug] PHP Warning: in file [ROOT]/vendor/twig/twig/lib/Twig/Extension/Core.php on line 1266: count(): Parameter must be an array or an object that implements Countable
Re: Bulging effect on top down DlP printer.
How fast is your build time with a 30 second dwell?
-
- Posts: 115
- Joined: Sun Jun 15, 2014 8:49 am [phpBB Debug] PHP Warning: in file [ROOT]/vendor/twig/twig/lib/Twig/Extension/Core.php on line 1266: count(): Parameter must be an array or an object that implements Countable
Re: Bulging effect on top down DlP printer.
About 8 hours for 45mm height
- PomeroyB
- Posts: 168
- Joined: Thu Mar 27, 2014 9:51 pm [phpBB Debug] PHP Warning: in file [ROOT]/vendor/twig/twig/lib/Twig/Extension/Core.php on line 1266: count(): Parameter must be an array or an object that implements Countable
Re: Bulging effect on top down DlP printer.
Not terrible... Especially since you're building a 50 microns!
I wonder where you begin to get diminishing returns... Is 15 seconds enough? 10? But how do you measure bulging? Just by looks? or is there some quantitative method?
I might have to do some testing on this... not too keen on the wiper solution.
I wonder where you begin to get diminishing returns... Is 15 seconds enough? 10? But how do you measure bulging? Just by looks? or is there some quantitative method?
I might have to do some testing on this... not too keen on the wiper solution.
-
- Posts: 115
- Joined: Sun Jun 15, 2014 8:49 am [phpBB Debug] PHP Warning: in file [ROOT]/vendor/twig/twig/lib/Twig/Extension/Core.php on line 1266: count(): Parameter must be an array or an object that implements Countable
Re: Bulging effect on top down DlP printer.
Just by eye..mainly things that are straight in the model are now straight (which were bulging before)
Since I'm doing prints overnight, I just set maximum dwell that could fit in 8 hours. I tried 15 s actually and was still getting some bulge, but not as much. It all depends on how viscous your resin is, how thick your Z resolution is and how wide your part is.
I will definitely be trying Spot A LV next since FTD seems pretty thick. Does anyone know of any other good low viscosity resins?
Since I'm doing prints overnight, I just set maximum dwell that could fit in 8 hours. I tried 15 s actually and was still getting some bulge, but not as much. It all depends on how viscous your resin is, how thick your Z resolution is and how wide your part is.
I will definitely be trying Spot A LV next since FTD seems pretty thick. Does anyone know of any other good low viscosity resins?
-
- Posts: 60
- Joined: Mon Jun 16, 2014 10:03 pm [phpBB Debug] PHP Warning: in file [ROOT]/vendor/twig/twig/lib/Twig/Extension/Core.php on line 1266: count(): Parameter must be an array or an object that implements Countable