The 3D scan of a cordless drill arrived as a 40 MB mesh file, and by lunch the nesting software had laid out eleven tool pockets on a 480 x 320 mm foam sheet with about 9% less waste than the layout our senior sample maker drew by hand. He asked to see the file twice, then asked for the mouse. That is roughly where the technology sits today: useful, occasionally humbling, and not in charge.
Where software actually helps
Computer-aided design earns its keep at three points. Nesting parts on a foam sheet is a packing problem and a solver does it faster than a person. Shell design benefits from draft and wall-thickness checks before any aluminium is cut, because a 1.5 mm wall with half a degree of draft will not release cleanly from a compression tool. And digital cutting - a vibrating-blade table driven straight from the DXF - removes the wait for a physical steel rule die, which is what compresses a layout revision from a week to an afternoon.
What the software does not decide is how tight a slot should feel. That still comes off the bench: 2-3 mm clearance for a tool pulled daily, 4-5 mm for gloved hands, and a finger relief wide enough for a thumb in a work boot. We have watched an optimised nest that no human could load because the pockets were laid out in the wrong removal order.
Fewer trial shots on the press
Mould development is where the money is, and simulation has cut our trial count. A new shell used to take four or five test shots to settle venting, cooling and material flow; with flow analysis run first we usually get there in two. On a 500-piece order the saving is modest, but at 3,000 pieces the tooling pays for itself and the buyer sees it in the unit quote.
Inspection has also moved partly onto screens. Cameras at the trimming station flag flash and short shots, and each carton carries a QR code tied to the mould number, the sheet batch and the inspection record, so a complaint three months later can be traced to a specific press and shift rather than a whole production month.
What buyers are asking for next
Requests that used to be exotic are now ordinary. A moulded pocket sized for a specific tracker tag. A lid insert with a cut-out over the charging port so nothing has to be unplugged. An RFID-blocking layer in a passport or card insert. Conductive linings with surface resistance in the 10^6 to 10^9 ohm range per IEC 61340-5-1 for circuit-board handling. Most of these appear first in our electronic accessory case range, and each one is a layout or material decision rather than a new machine. The constraint has not changed: MOQ starts at 500 pieces, a first sample on a standard structure takes about 3 days, and any request that changes the shell geometry still means aluminium - the customization page lists which of these options need tooling and which are only a file edit.
The next sample on the bench is a drone case with a landing-gear recess modelled from the manufacturer's published drawing; if the pocket comes out 2 mm tight, the blade file gets edited before the shift ends.