Hi,

I have made some parts via wet layup over a 3D printed core shape using EL2 laminating resin, then I sanded smooth and skinned in a cosmetic layer with your XCR resin.

I want to post cure them because I need to make sure it can take higher in service temperatures.

I'm not sure whether I need to support it during post cure, is it likely to distort ? And if so how much is to be expected ? I don't have a mould as I didn't make it from one, I wondered if I should make a half mould from the finished part for it to rest in during post cure, or some kind of frame to hold it.

The 3D core is stable at those temps, but the shape is spindly so I don't think that will provide much support.

All help and suggestions welcome !

ideally you would build a jig that locks the metal inserts in a certain position during post curing.

If you need to worry about it or not depends a lot on what kind of accuracy you need and how your tempering oven looks like. if you have an oven with ramp control and you can increase the temp very slowly, you can basically chase the glass transition temperature of the resin in a way that it will always be higher than the temp in the oven and distortion should not be an issue with a part like this.
If your setup is more simple then i would probably build a jig.

Nice looking parts!