Drawer divider

The request

Make a parametric drawer divider: a flat plate `length` mm along X, 40 mm tall along Z and 2 mm thick along Y, centred on the origin, with Z up. Cut `slots` equal slots down from the top edge, each 2.2 mm wide and 20 mm deep, evenly spaced along the length: the distance from each end of the plate to the nearest slot's centre and the distance between neighbouring slot centres are all equal, so the slots divide the length into `slots` + 1 equal steps. Expose two controls named exactly `length` (100 to 400 mm, step 10, default 200) and `slots` (2 to 8, step 1, default 4). Name the sub-part exactly `divider`.

What the AI judge checks

• A long thin flat plate
• Several narrow slots cut down from the top edge, all the same depth
• The slots are evenly spaced with equal solid ends
• Nothing else was added to the plate

Measured checks

• one sub-part named divider (gate)
• length is exposed as 100 to 400 (gate)
• slots is exposed as 2 to 8 (gate)
• default plate is 200 x 2 x 40
• every slot is open and evenly spaced, the ends are solid
• each slot is 2.2 mm wide, with plate either side of it
• each slot is 20 mm deep, with plate below it