Adventurer Dial Base — a mini base that counts your damage 0–9

A miniature base that is also a damage counter. The figure stands on a fixed inner disc; the outer ring turns and carries 0–9, and a small arrow inlaid in the disc's top face — at the front, where the figure cannot hide it — points at the current number.

It prints in place

The disc and the ring leave the plate already interlocked. There is nothing to assemble, no pin, no screw, no glue.

Both bodies start on the bed at z=0, so neither has a floating first layer — that is the failure that kills the obvious "rotor stacked over a floor" layout. They are separated by a radial gap only, and the capture comes from the disc being a barrel: Ø20 at the bed, Ø22 across the middle, Ø20 again at the top. The ring's bore is that profile offset outward, so the belt is wider than the bore both above it and below it and the ring cannot leave in either direction. Shoulders sit 39.8° off vertical, so there is no bridge and no overhang anywhere in the joint.

Print the coupon first

coupon.stl is three disc-and-ring pairs side by side at 0.25 / 0.30 / 0.35 mm gap, each engraved with its number. Twelve minutes. Twist them, and use whichever is the tightest one that still spins.

The shipped dial is built at 0.35 mm, which did not fuse on a Bambu P2S in PLA. It is the loose end of the range — at 0.35 the ring also rattles about 0.55 mm up and down before the barrel's shoulders wedge, which is the price of capture with no assembly step. The .scad is included, so re-exporting at your own number is one variable.

Turn ON elephant-foot compensation. Layer 1 squashes out by 0.2–0.3 mm, which is the entire gap.

Four dials, print exactly one

Drop-in means one dial serves a whole party — swap the mini between fights. Welded on means there is no second print and nothing to lose under the table.

Two colours, cheaply

The numerals and the arrow are engraved 0.6 mm into the top face — one Z band, the lowest and cheapest place in the part to put a second colour. At 5 mm cap height the stroke is 0.9 mm, well clear of the 0.8 mm minimum below which a slicer emits no toolpath at all.

Print dial_2c.stl (or dial_wanderer_2c.stl) instead of the plain file, then in Bambu Studio: Import → right-click → Split to Parts. You get four parts — disc, ring, numerals, arrow. Give the disc and the ring filament 1, the numerals and the arrow filament 2. Coordinates are preserved exactly, so the numerals land in their pockets rather than beside them, and the disc and ring stay 0.33 mm apart through the split, so it is still one print-in-place object.

All ten digits come back as ONE part, not ten, because the ink is welded to itself by a 1.0 × 0.6 mm annulus buried under the engraved skin. The colour change costs about 2 g of purge — the ink lives in six layers near the top and nowhere else.

Turn ironing off on the top face. It drags one colour across the other.

The figure

29 mm, hooded and cloaked, on its own Ø13 × 1.2 mm puck. It prints upright with no supports: every feature is a hull of spheres, so the angle under each one is set by where the centres are, and the worst downward face on the whole model is a sphere cap under 1 mm across. Cloak to the ground, arms under the cloak, pack and bedroll fused to the back, sword hilt welded along the hip — nothing stands off the body by more than 2.2 mm, so there is nothing to snap off.

On the fused dials it is a solid boolean union with the disc, one closed shell from the bed to the hood. The seat is 132.7 mm² of layer bond and a sideways push at the head takes about 109 N to break.

Specification

• Base Ø36 × 5 mm; figure seat Ø13.2 × 1.3 mm

• Dial 5.8 g, dial with the figure welded on 9.0 g and 34 mm tall

• Coupon ~12 min, dial ~40 min, fused dial ~1 h 20

• No supports on any part

• square_base.stl — a plain 25 mm square base with the same seat, if the dial is not for you

• fig_gauge.stl — the figure's puck on a thumb tab, to check the seat fit before committing to a figure

Known limitations

• No detents. A bump would have to sit ~0.10 mm off the bore to click, which is under the fuse threshold — it would weld the ring solid. The ring turns freely, so a table bump can move it.

• The index arrow is small, 2.6 mm, because that is the whole budget between the figure seat's lead-in and the disc rim.

• A figure of your own must stay inside Ø18 above its base disc or it fouls the ring.

Printed in PLA on a Bambu P2S.