Flatness Issue Standard Gray Resin

Hi there, I’m new to the 3D printing process and have been fighting with trying to keep flatness on my completed prints. I’m printing masters for silicon molds and being two piece silicon mold needless to say I need to have flat mating surfaces for it to work properly. Not sure if this is just the characteristic of this material or something i’m doing. Help and advice welcome . Attached is most rcent print at these settings .
Density 1.5 , Full Raft ,Touch point 1mm , Layer Thickness .050 mm , Layer Amount 572 , No Post Cure


Hi @smully00,

I would advise angling the part ever so slightly so that the base layers of the part are being build slowly over many layers; when you print something on supports perfectly parallel to the build plate, it increases the likelihood of warping. Please feel free to reach out to Support in order to have them inspect the .form file and further elaborate on the “why” behind angling parts!

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what Corney said, plus that you can use a very fine water sandpaper to get the touching surfaces perfectly flat

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Agreed. Print at a 35 to 45 degree angle. Although the standard gray resin will warp over time no matter what. It’s extremely soft and is meant more for prototyping than anything.

If your looking for usable parts suggest the tough resin line.

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The first few prints I use the auto orientation which angled the part but the warping was worse. I’m gonna tilt parts slightly from this point forward as you recommend. To help keep the parts flat I’ll be installing heat set threaded inserts in key locations to fasten them down to a piece of melamine before molding. This should make them useable and not have to change to tough resin .

Hi @smully00,

If these issues persist, please do take photos of the orientations and share them with our Support team if needed. They will be able to offer more specific advice and even angle some parts for you based on our best practices.