Does anyone have trouble with objects warping after a few days of printing?
If so and you’ve resolved it- what seemed to help?
I’ve done long thin objects that are about .5"x .5" x 5" long and after a few days have warped. Ive hollowed them out to save resin and also printed them solid with still the same results. The prints tend to curl upwards in smiley face fashion.
Any advice would be most helpful.
Do you post-cure your prints?
I will let them sun bathe whenever possible after an isopropyl alcohol washing session. Usually 1 min in each tub. If they don’t get to sun bathe I sit them in a uv chamber for an hour.
Depends on how thin the part is. For long thin parts I keep the prints on the supports as long as possible to help hold it in place while it cures.
I am also having a problem with prints warping. I am printing jewelry pieces that are rectangles or circles, about 1.5-2mm thick. I have been curing them on the framework, but they are coming out of the Form 2 warped. I run them through the IPA bath, 30 second agitate and 6-7 minute soak in each tub. What material are you using? I’m using the new castable resin V2.
I’m also having some problems with the dimensions staying true. If I put a rectangle pendant in that’s 30mm x 10mm, the sides are not straight. Circles do not stay round. I’m wondering if additional supports might help? But I’m wary about adding supports because that’s a lot of extra finishing. I’m using 0.4 mm points on supports. I’ll upload a picture shortly.
I just got my Form 2 this week, so user error is definitely an option. 
The Form2 applies a “shearing force” to the print to break loose of the bottom of the resin tank. This has to result in “pulling” forces on the print in the direction the tank moves when performing the “peel”. As a result, orientation on the build plate is going to make a difference to the print if you’re trying to minimize the number of supports.
As for warping, I agree that thinner parts tend to warp more. I’ve seen that warping is often a function of how “hot” one side of the object gets vs. the other side during post-print curing (meaning, placement in my curing “jar” is critical). Put a thin print on a flat table in the sun, I would expect it to curl due to uneven heating and curing.
Leaving the print on the supports helps, but doesn’t guarantee you won’t see warping.
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