# Swash plate follower 8 × 8 × 30 with Ø8 ball end

> What follower rides on a swash plate?

- Category: Stirling engines › Drives & mechanisms
- Kind: Hardware
- Basis: 8 mm square pushrod 30 long with an Ø8 ball on one end and a Ø3 × 10 hole in the other
- Page: https://xemstudio.com/objects/swash-follower/ · JSON: https://xemstudio.com/api/geometry?object=swash-follower · Plain text: https://xemstudio.com/objects/swash-follower/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); linked files under their publishers' licenses

**Exact dimensions.** Every file is drawn at true size with no printing tolerance. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your printer's or process's clearance before making the part.

## Notes

- An 8 × 8 square pushrod 30 long; an Ø8 ball centred on one end face bears on the swash plate, making it 34 overall.
- The other end has an axial Ø3 hole 10 deep for a Ø3 pin to the piston or link.
- It runs in a square 8 × 8 guide so it slides without turning.

## Mating features (exact size; open press / slide / run / socket by your process clearance, leave designed and clamp as drawn)

| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| follower tail hole | Ø3 | Ø3 pin | run | swash-follower-* |

## Sizes

| feature | value_mm |
|---|---|
| section | 8 × 8 |
| length | 30 (34 with ball) |
| ball | Ø8 |
| tail hole | Ø3 × 10 |

## Where the files are

- Wikipedia: [Swashplate](https://en.wikipedia.org/wiki/Swashplate) — web — CC BY-SA 4.0 (text)
- Long Earth Society: [Engine and rig builds on extrusion frames](https://longearthsociety.com/engineering/) — web, video — LES site

## Free STEP/STL (1 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/swash-follower/index.json

- swash-follower-8x30: [STEP](https://xemstudio.com/files/hardware/swash-plate/swash-follower-8x30.step) · [STL](https://xemstudio.com/files/hardware/swash-plate/swash-follower-8x30.stl) — swash follower: 8 mm square pushrod with a Ø8 ball end, Ø3 tail hole

## How it fits

### Connects to
- [Swash (wobble) plates Ø40 at 10, 15 and 20°](https://xemstudio.com/objects/swash-plate-40mm/): Ø8 ball on the tilted face

### Also needed
- [Crank and wrist pins Ø3 × 12, 16, 19, 20 and 23](https://xemstudio.com/objects/pins-3mm/): Ø3 pin in the tail

## Questions

**What size is the swash follower?**

8 × 8 × 30 with an Ø8 ball end, 34 overall, Ø3 × 10 tail hole.

**What connects to the follower tail?**

A Ø3 pin in the Ø3 × 10 hole.

## Fits with

- [Swash (wobble) plates Ø40 at 10, 15 and 20°](https://xemstudio.com/objects/swash-plate-40mm/)
- [Crank and wrist pins Ø3 × 12, 16, 19, 20 and 23](https://xemstudio.com/objects/pins-3mm/)
- [Four-bar links: flat links with 20 to 100 mm hole centres](https://xemstudio.com/objects/four-bar-links/)