9 phases
RF-1 · Phase 1 — Drivetrain Coupon
The locomotion de-risk for the rolling face (../brief.md).
v0.2software-verified
rendered + manifold), awaiting print/test-fit
RF-1 · Phase 1b — 4-Wheel Belt-Drive Drivetrain Coupon
The 4-wheel evolution of the locomotion de-risk for the rolling face (../brief.md), per the design doc.
v0.4print-ready
three-compartment symmetric cradle on caliper-confirmed N20 dims; manifold + collision/clearance-checked (awaiting test-fit
RF-1 · Phase 2 — Powered Rover
The integrated, untethered, phone-driven rover — drivetrain + electronics + power, layered and wired, before the OLED face.
v0.9in progress
v0.9 second-print feedback applied: motor clip reworked to a narrow free-flexing finger (lip 0.8→0.6), inter-bay ribs lowered (z=18.5), wire chase cut to the bay floor; manifold + collision-checked, awaiting re-test
RF-1 · Phase 3 — The Face
The two-part enclosure that finally gives RF-1 a face: a press-fit cover closes the powered-rover body, and a separate tilted head module at the front holds a 0.96″ OLED behind a masked visor slot.
v0.3software-verified
full cover + face (contract-driven, gated): cover clears the Ø34 wheels, tail USB×2 + switch cutouts, front face-module socket; head wedge with masked visor. 3 gates PASS, form_lint 0 FAIL, form-resolved (one 5 mm house
RF-02 · The Monocoque Loaf
Why RF-02 instead of patching RF-1/P3: RF-1 grew function-first with form patched on at the end (three corner radii reconciled after the fact, a chamfer-vs-round-over residual, a body-align override).
v0.14in progress
v0.14 ARCHITECTURE PIVOT (board-in-cover) + version-stamped parts; all 7 gates GREEN, both parts 1-shell manifold, print-orientation-correct. The custom perfboard moved from the tub deck INTO the COVER: it mounts component-sid
RF-03 concept massing
Four one-piece pebbles, one per concept from the 2026-07-03 design session — Quadloaf, Beltline, Riverstone, Lookup.
stance/form arbitration set
NOT print-ready mechanical parts; no interface dimension may be inferred from them
N20 desk test rig
A 2-part bench fixture for characterising unmarked N20 gearmotors — measure RPM (and from it the gear ratio) and eyeball the voltage class — for the RF-1 drivetrain.
bench fixture, printed and in use
characterisation tool, not a robot part
N20 PETG/TPU mount
A one-piece printed, screwless, hand-serviceable N20 gearmotor cradle that fixes all 6 DOF on the gearbox while letting the variable-length can float.
v1.1retention tuned on a printed a–d interference ladder
2026-07-03) — LIP_INTERFERENCE 0.30 picked by hand
RF-1 bench platform
The basic bench platform for Rolling Face: get the electronics and mechanics working, then feed what you learn into RF-03.
v0.4bench mule
every interface number measured and parts mesh-verified, but no cover and no gates; learnings feed RF-03