PrimvariaUsage in depth
Every option of quincaillerie generate and the catalogue of sizes and cell formats.
Options of quincaillerie generate
| Option | Default | Effect |
|---|---|---|
KIND KEY |
screw, nut, washer and a size (M3…M12); cell, holder and a format (AA, 18650, 9V, CR2032…); or all |
|
--length L |
per size (M8: 30) | screw length in mm, from 2 pitches to 200 mm |
--with KINDS |
related elements: nut,washer (screw), screw,washer (nut), holder (cell), cell (holder) |
|
--count N |
1 | distinct instances of each part, each with its own drawn variation, all in the scene |
--defect-rate R |
0.15 | share of instances with a defect |
--thread-play |
class |
thread clearance: class (drawn in the 6g / 6H fit), middle (the middle of the fit for every instance, whatever the seed) or legacy (the range used before the fit classes: 1.6–8 % of the pitch), see Thread fit |
--no-vary ASPECTS |
aspects that stay nominal: tolerance, defect, wear, physics |
|
--nominal |
no variation: the reference part (--count copies in the scene) |
|
--detail |
normal |
visual mesh resolution, low, normal or high (1.4, 3.4 and 7.5 MB for an M8 × 30 screw) |
--collider |
thread |
collision of the fasteners: thread (the helix in convex pieces: nuts screw on, crushed threads jam) or simple (the envelope alone: 2 pieces for a screw, 12 for a nut, 8 for a washer), see Simple colliders |
--finish F |
zinc_clear |
default finish of the fasteners (all six are in every file's variant set) |
--no-physics |
no rigid bodies, colliders, joints or physics scene | |
--no-scene |
assets and materials only | |
--seed S, --out DIR |
1, output |
the same seed and options give the same parts |
Catalogue
| Part | Sizes or formats | Mass (g) | Collision |
|---|---|---|---|
| Hex head screw, ISO 4017 | M3 to M12, any length | M3×12: 0.91 · M8×30: 15.4 · M12×40: 45.2 | core + head + ≈ 800 thread pieces |
| Hex nut, ISO 4032 | M3 to M12 | M3: 0.38 · M8: 5.55 · M12: 15.7 | ≈ 200 pieces (ridge + ring sectors) |
| Plain washer, ISO 7089 | M3 to M12 | M3: 0.12 · M8: 1.81 · M12: 6.19 | 24 ring sectors |
| Cylindrical cell + cradle | AAA, AA, C, D, CR123A, 18650, 21700 | 11.5 to 135 (typical) | can + button cylinders; holder: boxes, spring plate on a prismatic joint |
| 9 V block + keyed holder | 9V (6LR61) | 45 | box + two snap cylinders; terminal slots sized to the snaps |
| Coin / button cell + clip | CR2032, LR44 | 2.9, 1.9 | can + cap cylinders; clip on a revolute joint |
Fastener dimensions (across flats, head height, nut height, washer
diameters, pitch) are the nominal values found in public tables; the ISO
standards themselves were not consulted, and the files say dimensionsStatus
= nominal. Cell dimensions are the nominal IEC sizes; masses and contact
forces are typical orders of magnitude. The labels on the cells are generic
("QUINCAILLERIE synthetic test cell"), no brand.
Every cell format, and AA, 18650, 9 V and CR2032 cells seated in their holders (spring compressed, clip lifted), rendered in Blender.