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ive done plenty of 3d printed tooling, if you are doing room temp wet lay then you can get away with PLA printed materials but you need to make sure they are properly sealed and released as Epoxy resins stick to them really well. Plus there will be a bit of wet sanding to get them smooth, or you can cover them in flash tape or PTFE release film like Tygaflor
If you are looking into elevated temperatures or autoclave curing then you really need to be looking at better engineered materials, have a look at the graphite am website and there range of ceramic and carbon printed materials.
I would also investigate the use of stratasys ULTEM 1010 and 9085 materials as they are suitable for high temp and autoclave curing.