Full Finale — the capstone skill check

Drag the base handle

You never aim the tip. You drag the base plate; a linkage carries the motion to the tip. This capstone folds the whole curriculum into one run of four stages — approach vector, fit / routing, depth + pressure, then a composite that demands several at once. Every hidden target now drifts gently within the run, so a one-time aim decays — you must keep re-aiming. All feedback reads the tip. Clear every stage to pass. Left-drag the plate (forgiving grab) · right-drag or hold Space to orbit · wheel zooms.

Tip match

— press Begin —

left-drag the pink plate (forgiving grab) · right-drag / Space+drag to orbit · wheel zoom · targets hidden AND drifting — read the strip & bars

press Begin run to start the capstone

Stage: idle Drift: on

Not aligned
hold in-band to clear the stage

0LOCKS

0/4STAGES

—BEST TIME

—LAST STAGE

Press Begin run. The capstone runs four stages back to back; each hidden target drifts as you track it. Clear all four to pass.

Why did I miss?

Only the sub-skills active this stage light up, so a miss is always attributable to a named cause — never a confounded blur.

Assists & options

Reveal current target (training wheels)

Show tip Show linkage

Drift on (off = static, practice mode)

Keyboard controls

Click the 3D view first (it takes focus). ←→↑↓ orbit · Home reset view · wheel zoom.
Left-drag the pink base plate to drive the linkage — the grab is forgiving, so you don't have to land on the disc exactly. Right-drag or hold Space + drag to orbit. The tip is the referent of all feedback — always.

What this capstone tests

The full finale. It folds the whole curriculum into one run and adds the third uncertainty source — within-run drift — on top of the two that were always present (hidden target + indirect linkage). Four stages: 1 Approach (approach vector, glancing incidence — Dock + Tangent), 2 Route (fit / routing through a constrained 4-segment chain around an obstacle — Fit), 3 Seat (depth + pressure into a compliance spring — Contact), and 4 Capstone (incidence + depth + pressure at once). Each stage's hidden target drifts on a gentle, bounded, smooth path, so a single correct aim decays and you must keep re-aiming — that is the drift skill. Feedback is tip-referenced and decomposed per active sub-skill (Angle / Incidence / Reach / Clearance / Depth / Pressure) so a miss names its cause. Hold every stage's lock to clear it; clear all four to pass. Solvers, bone/segment lengths, the CCD clamps, and the compliance law are copied verbatim from the isolated drills.