On the pictures you can see my PreForm file and the element I printed twice but both prints failed. I had cleaned the tank before I started printing. I used the black resin, a layer thickness of 0.1 mm, a density of 0.6 and a point size between 0.65 – 0.8 mm.
After the first print failed I checked my print and compared it with the PreForm file. My first thought was I forgot the support structures below the overhang. So I rotated the element a little bit and added the additional support structures.
Additionally you should know that there is a hollow profile at the backside. The problem will not be solved if I turn around the element, because there is an overhang too.
Before I start the third run I would like to hear your opinion.
Do you gain experiences to print overhangs? Maybe the wall thickness of 6 mm could be too big. Should I use other settings or an other model orientation? Is it possible that there is a problem with the laser?
From the streaks on the print I’d consider a mirror clean (if you know your tank is good). And perhaps filter your resin if you haven’t done so already. The file itself looks ok to me.
I agree that this could be due to optics or an old resin tank. I would also recommend writing into our support team so they can help resolve this for you.
I had that a couple of times. It happens if you get a tiny piece of layer stuck to the pdms and usually on large peel areas.
More of an angle helps. May want to toss a couple more supports and rotate it on z so the cup side is facing towards the front rather than the side. It might do the trick.
Part I had that kept doing that, more angle and rotating it 180 on z did the trick here.
