Lacing stage
The wheel drawing updates with crosses and holes. Nudge left CTF, right CTF, and dish on the canvas. Length chips sit under it: non-drive L, drive R, dish offset, Δ L−R.
Offline workshop calculator. ERD, flange PCD, and center-to-flange — left and right rewrite as you change cross and dish.
Stand a hub and a rim, set hole count and cross, read two lengths plus dish before you open a spoke box. Drive side reads brass; non-drive stays steel. A 1 mm CTF error moves dish more than the same ERD error — the app keeps that visible.
Three intro cards, then a bench that is never empty: twelve hubs, twelve rims, twelve kits. Seeded numbers are typical shop values. Confirm ERD with a nipple seated. Planning aid, not a machine-shop print.
The wheel drawing updates with crosses and holes. Nudge left CTF, right CTF, and dish on the canvas. Length chips sit under it: non-drive L, drive R, dish offset, Δ L−R.
ERD 500–640 mm. Flange 28–80. CTF 8–55 each side. Cross 0–4x. Dish toward rotor or cassette — 0.5 mm Boost is a shop choice.
Name, gauge, nipples, notes. Writes to Room. Header shows hole count and cross so you know which lace you are editing.
Filter hubs Road / MTB / Dynamo / Cargo. Rims 26 / 27.5 / 29 / 700c. Search brand. Detail → use on bench.
| Hubs | Rims |
|---|---|
| DT 350 Road CL, 105 R7000, Ultegra front, Hope Pro 5 Boost, XT M8100, I9 Hydra, SON Delux, SP PV-8, Novatec D791SB, Phil Wood ISO, White CLD, Formula DC-22 | RR 411, Kinlin XR-31T, Velocity A23 OC, Archetype, M 542, Arch MK3, XR 391, Rhyno Lite, Andra 40, DM18, GR 531, XM 481 |
Filter saved builds by cross. Compare A vs B: Δ left, Δ right, Δ dish. Flange or CTF off by more than ~1.5 mm → recut. Front-to-rear spare almost always needs new drive-side spokes. Cut card lists hub, rim, rounded lengths, counts, gauge, nipples. Share uses the system sheet only when you tap it.
Seeded: commuter 700c 3x, trail 29 Boost, cargo 26 4x, gravel dynamo 2x, city front, XC spare, 27.5 XT, bakfiets steel, endurance 32h, shop 26, 105 offset A23, winter dynamo.
Per side: rim R = ERD/2, hub R = PCD/2, CTF, even holes 8–48, crosses 0–4. Also: dish from the CTF split plus target, bracing angles, tension ratio, spokes per side. Rounding exact / 0.5 mm / 1 mm. Units mm or inches. Nipple head is not added — published ERD already assumes one. 24h rears want a tighter band than 36h cargo. Never radial the cassette side.
Guide: tension by count, cross primer, 90-second dish check, gauge, nipples, hub-swap recut. Settings: units, default cross, rounding. Local Room + DataStore only.
Lengths that look wrong, a catalog card that does not match the hub in your hand, a cut card that failed to share: harviespectord8182@gmail.com. Send kit name, holes, crosses, ERD, both PCDs, both CTF, and the two lengths shown. Replies in order, usually a few business days. No accounts. Not a parts counter.
Yes. Network only if you tap Share and pick a destination.
ERD with or without a seated nipple, diameter vs PCD, tape on or off. Re-measure the parts in your hand.
Compare first. More than ~1.5 mm on flange or CTF → recut. Front-to-rear almost always needs new drive-side spokes.
Half-millimetre default. Exact while checking. Whole mm if the vendor sells 1 mm steps.
No. Typical values. Coating, eyelets, strip, or a re-spaced axle move the triangle.
No. Uninstall clears Room and DataStore.
harviespectord8182@gmail.com — full geometry plus both lengths. Recheck CTF first.