# channel_100x100um_58p5mm — reference-chip bundle (channel-chip family)

One straight rectangular channel, 100 µm deep × 100 µm wide, 58.5 mm
port-to-port, in a monolithic resin-SLA block with two Ø1.5 mm vertical access bores.

## Credits

- Design: Ali Tahmasbizadeh, Gale Lab, University of Utah.
- Target: channel cross-section H × W = 100 × 100 µm, length 58.5 mm. Chip footprint 63.0 × 4.5 × 1.9 mm.
- The ports are straight bores.

## Verification (trimesh, merged vertices)

| metric | value |
|---|---|
| channel volume — analytic | 0.5850 µL |
| channel volume — mesh | 0.5890 µL |
| Δ (mesh − analytic) | +0.68% (uniform 0.4 mm boolean overrun) |
| void watertight / bodies | True / 1 |
| chip watertight / Euler | True / 0 |
| px_min @ 19 µm/px (Phrozen 12K, X) | 5.26 px |
| px_min @ 24 µm/px (Phrozen 12K, Y) | 4.17 px |
| px_min @ 7.6 µm/px (BYU Nordin) | 13.16 px |
| tier | marginal |

**Phrozen Sonic Mighty 12K design** — geometry verified in CAD.

## Rebuild

    /usr/local/bin/python3 build_batch2.py     # OpenSCAD 2021.01 + trimesh 4.12.2