The frame has been built! It seems fairly sturdy and should hold up well for this purpose. I'm not sure I would trust the 3d brackets for a long term solution only because I printed them at a lower temperature than I should. There are some layer adhesion issues that I can fix with higher extruder temperatures and lower layer heights if I want to make them again.
The brackets also took a lot of post processing work to get them to fit right. Each hole had to be drilled out, and the alignment tabs needed to be filed down. Still, they're pretty amazing considering the cost savings compared to aluminum brackets. If I had a better printer, like a DLP projector based printer, I think these brackets would work perfectly.
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