# Traverser block 16 × 28 × 16: Ø5 pin hole (radial) and Ø6 guide-rod bore

> What is the traverser of a level wind?

- 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/traverser-block-16x28-pin5-guide6/ · JSON: https://xemstudio.com/api/geometry?object=traverser-block-16x28-pin5-guide6 · Plain text: https://xemstudio.com/objects/traverser-block-16x28-pin5-guide6/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 |
|---|---|---|
| 16.0 | 28.0 | 16.0 |

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

## Notes

- 16 × 28 × 16 block that slides on a Ø6 guide rod parallel to the drum (bore 10 mm beside the pin) and carries a Ø5 pin pointing into the drum's groove: as the drum turns, the groove drives the block along the rod, 60 mm each way.
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

## Sizes

| dimension | value |
|---|---|
| block | 16 × 28 × 16 mm |
| pin hole | Ø5, radial to the drum |
| guide bore | Ø6, 10 mm beside the pin |

## 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. 108: figure, his text and an animation](https://507movements.com/mm_108.html) — web — Publisher's page; dimensions are facts
- Xem Studio: [drawing](https://xemstudio.com/objects/reversing-screw-traverse-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/traverser-block-16x28-pin5-guide6/index.json · license: https://xemstudio.com/files/hardware/traverser-block-16x28-pin5-guide6/LICENSE.md

- traverser-block-16x28: [STEP](https://xemstudio.com/files/hardware/traverser-block-16x28-pin5-guide6/traverser-block-16x28.step) · [STL](https://xemstudio.com/files/hardware/traverser-block-16x28-pin5-guide6/traverser-block-16x28.stl) — block centred 27 mm from the drum axis, pin hole along X at y = 0, guide bore along Z at y = 10

## Questions

**What is the traverser of a level wind?**

16 × 28 × 16 block that slides on a Ø6 guide rod parallel to the drum (bore 10 mm beside the pin) and carries a Ø5 pin pointing into the drum's groove: as the drum turns, the groove drives the block along the rod, 60 mm each way.

## Fits with

- [Reversing-screw drum and traverser (uniform to-and-fro traverse)](https://xemstudio.com/objects/reversing-screw-traverse-mechanism/)