Examples
One that failed DFM and got fixed automatically, one that passed outright. Both are real fixture briefs you can run yourself on the walkthrough — nothing here is staged copy.
FDM · 200 units · $8/unit
Modular desk caddy
“A phone stand, two pen cups, and a USB-C dongle tray. Must print without supports if possible. Calm, slightly industrial, no sharp user-facing edges.”
The iterate loop, in one run
DFM caught a blocking wall-thickness issue on the first pass (0.8 mm against FDM's 1.2 mm minimum) — score 0.44. The Design agent thickened the wall and eased the overhang; the re-check cleared at 0.90.
3-axis CNC · 300 units · $30/unit
Outdoor sensor enclosure
“A weather-resistant enclosure for an 80×55×30 mm sensor board — IP65-style gasket seal, four M3 bosses, a cable gland, removable lid, machined aluminium.”
A clean pass, and why
Passes DFM on the first pass — no undercuts, internal corners at or above the tool radius, boss spacing clear of the blow-out rule.
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