FDM DFM Tool Investigation, What should it check before printing?

Hi everyone,

I’m working on an idea for a tool that reviews an FDM part before printing and flags design issues that a slicer may not fully catch.

Things like wall thickness, clearances, hole sizes, orientation, overhangs, support on functional surfaces, weak layer direction, damaged geometry, etc.

Before going too far with it, I want to understand what people actually check in real workflows, especially when printing functional parts or reviewing files from other people.

I put together a short survey to compare those habits and see where there’s real agreement — and where everything depends on printer, nozzle, material or use case.

It takes about 6–8 minutes:

I’m also interested in hearing it directly here:

What’s the one thing you still check manually before hitting Print, even when the slicer says the model is fine?

If I get enough responses, I’ll share the aggregated results back with the community.