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Mesh

• Axes at exactly 90.0°; centre separation 35.777 mm against a nominal cone distance of 35.777 mm.
• 0.43 mm of backlash at the pitch circle.
• The D-flats are 1.0 mm deep, not the 0.5 mm of a steel D-shaft — a 0.5 mm flat is one extrusion wide and won't print or drive.

Printing

• Every part sits flat except the pinion: its tooth rim overhangs the hub by 2.5 mm. Support it or accept a rough band — it's clear of every mating face.
• Print both shafts upright — the journals need a round surface, and crank torque runs about 2.8 MPa across the layers against roughly 25 MPa allowable.

Assembly — the order is forced in two places

1. Output shaft up through the base from underneath, flange into the counterbore.
2. Press the gear down onto it until the back face meets the boss — that face sets the mesh.
3. Drop the pinion straight down into mesh.
4. Input shaft in from outside, through the arm and the pinion.
5. The four M3 screws, then the crank last — it sits over one of the screw holes.

The fit

• 85.000 mm tall, base 58.350 mm, one piece.
• The flat tamping face is 57.35 mm, ringed by a 0.5 mm chamfer — it keeps the rim off the basket wall and gives elephant's foot somewhere to go.
• The knurl is 47 straight grooves at 2.139 mm pitch, 1.067 mm deep — a 90° V sized off a 0.4 mm nozzle.

Prototype

• Run the infill high, 60% or solid. Nothing structural needs it — it's about heft: 133 g in PLA against 289 g for the same part in 6061.

For the CNC

• The whole silhouette is a single body of revolution, so it turns in one setup, and the straight knurl is a standard knurling-wheel pass on the Ø32 band.
• The STEP carries the two coves as real splines rather than facets.

The stand

• 111.6 × 168.5 × 235.3 mm in 3 mm ply — 7 pieces from 4 unique profiles, through-tabbed into the two side panels.
• Both pockets are 105.6 mm wide and 40 mm deep, raked back 15° so a part-empty pocket doesn't slump forward.
• Loaded (about 1.7 kg), it tips sideways at 20°, against 32° forward and 25° back. That's the cost of the single-column width.

Cut files

• Millimetres, three layers: black cut, red engrave (Meridian Labs, 13 mm cap height), blue marks — part names, quantities and grain arrows, meant to be deleted before cutting.
• Two 12 × 12 in sheets. The second comes back with one clear offcut of about 184 × 134 mm.
• The two side panels nest by interleaving their steps and share that long diagonal as one cut line — that's what got them onto a single sheet.

What to know

• The foot is ⌀50 × 18 mm with a ⌀10 mm stud standing 40 mm proud — 58 mm tall overall. The jam nut gives 29.8 mm of leveling range.
• The thread is 3.0 mm pitch, not ISO M10 × 1.5. The printed 45° form you picked sets its own pitch, so the stud and this nut mate each other and nothing else.
• The nut is 17 mm across flats like a DIN 439 M10, but 8 mm thick instead of the standard 5 — at this pitch 5 mm would hold only 1.7 turns of thread.

Load

• The whole cabinet goes through a ⌀8.2 mm core. In PLA that is about 54 kg per foot at a safety factor of 5 — ~215 kg for the set of four.
• The factor is that wide because PLA creeps under sustained weight; PETG or ASA holds a standing load much better.

Printing

• Base down, stud up: that stands the thread flanks at exactly 45°, so the whole stud self-supports.
• The one real overhang is the ⌀32 mm pad recess in the base — it bridges 32 mm at 1 mm off the bed, and the rubber pad hides it.
• Run 4+ perimeters — the stud carries its load in its walls.