Clough42 models every CNC control cabinet in Fusion 360 before ordering a single part. The reason is simple: even experienced builders consistently encounter unexpected problems, and catching them in CAD costs nothing. Catching them after cutting sheet metal or buying components does.
The process is less straightforward than it sounds. Supplier-provided STEP files regularly lack usable geometric snap points, and enclosure models ship as single monolithic bodies with no separate door geometry and no hinge articulation. The article's real value is in the specific Fusion 360 workarounds Clough42 uses to handle these failures, not just the argument for modeling in the first place.
The broader point extends beyond cabinets. Pre-build CAD modeling is a prototyping stage that surfaces interference issues, clearance errors, and assembly sequences that look fine in your head but fail in three dimensions. The linked failure case of a screwdriver handle trapped by surrounding components is a clean illustration of what skipping this step actually costs.
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