# Gauge cheek 12 × 40 × 16 with a 12 × 6 channel for the bar and Ø3 link pivot

> What is a gauge cheek?

- Category: Hardware › Mechanism parts
- Kind: Modern device
- Basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance
- Page: https://xemstudio.com/objects/gauge-cheek-12x40x16-ch12x6/ · JSON: https://xemstudio.com/api/geometry?object=gauge-cheek-12x40x16-ch12x6 · Plain text: https://xemstudio.com/objects/gauge-cheek-12x40x16-ch12x6/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files Xem Studio Design License (free to use and sell from, not to redistribute as files: https://xemstudio.com/license/)
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width | height |
|---|---|---|
| 12.0 | 40.0 | 16.0 |

**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- 12 × 40 × 16 block with a 12 × 6 mm channel across it (it sits on, or slides along, the cross-bar line-on-line), a Ø3 link-pivot hole at its centre through the top and a Ø3.2 cross hole for a thumb screw. Its 40 mm faces are the cheeks that bear on the sides of the work.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

## Sizes

| dimension | value |
|---|---|
| cheek | 12 × 40 × 16 mm |
| channel | 12 × 6 mm (the bar) |
| pivot hole | Ø3 at the centre |
| screw hole | Ø3.2 |

## Where the files are

- Henry T. Brown (1868, public domain): [Five Hundred and Seven Mechanical Movements — scan on archive.org](https://archive.org/details/fivehundredseven00browiala) — web — Publisher's page; dimensions are facts
- 507movements.com: [Brown's movement No. 410: figure, his text and an animation](https://507movements.com/mm_410.html) — web — Publisher's page; dimensions are facts
- Xem Studio: [drawing](https://xemstudio.com/objects/bisecting-gauge-mechanism/) — web — Publisher's page; dimensions are facts

## Free STEP/STL (1 parts, Xem Studio Design License, Xem Studio)

Index: https://xemstudio.com/files/hardware/gauge-cheek-12x40x16-ch12x6/index.json · license: https://xemstudio.com/files/hardware/gauge-cheek-12x40x16-ch12x6/LICENSE.md

- gauge-cheek-12x40x16-ch12x6: [STEP](https://xemstudio.com/files/hardware/gauge-cheek-12x40x16-ch12x6/gauge-cheek-12x40x16-ch12x6.step) · [STL](https://xemstudio.com/files/hardware/gauge-cheek-12x40x16-ch12x6/gauge-cheek-12x40x16-ch12x6.stl) — cheek, z 0..16, bar channel z 5..11 along X

## Questions

**What is a gauge cheek?**

12 × 40 × 16 block with a 12 × 6 mm channel across it (it sits on, or slides along, the cross-bar line-on-line), a Ø3 link-pivot hole at its centre through the top and a Ø3.2 cross hole for a thumb screw. Its 40 mm faces are the cheeks that bear on the sides of the work.

## Fits with

- [Bisecting gauge (centre finder with two equal links)](https://xemstudio.com/objects/bisecting-gauge-mechanism/)