# SLAMTEC RPLIDAR S3 lidar: 55.6 mm base, M2.5 mounting holes and optical window height

> What are the SLAMTEC RPLIDAR S3 dimensions, mounting holes and optical clearance?

- Category: Electronic components › Modules, sensors & displays
- Kind: Modern device
- Basis: SLAMTEC RPLIDAR S3 datasheet v1.0, Figure 4-1 Mechanical Dimensions.
- Page: https://xemstudio.com/objects/slamtec-rplidar-s3/ · JSON: https://xemstudio.com/api/geometry?object=slamtec-rplidar-s3 · Plain text: https://xemstudio.com/objects/slamtec-rplidar-s3/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width | height |
|---|---|---|
| 55.6 | 55.6 | 41.3 |

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

## Notes

- Datum: bottom mounting face on z=0, centred on X and Y; the cable exits on the −Y side.
- Base 55.60 × 55.60 × 23.35 high; overall height 41.30 to the top of the optical housing (Ø50.2, chamfered to Ø41.2 at the top).
- Four M2.5 threaded holes in the bottom face on a 43.00 × 43.00 square centred on the base, max screw engagement 4.0 mm.
- Optical band z=23.35..41.30 must stay clear through the full 360°.
- Not modelled: cable, strain relief and XH2.54-5P plug (the cable exit reaches 59.80 from the +Y edge), the bottom recess and case screws.
- Dimensions are exact nominal mm; the housing diameter is scaled from the drawing.

## 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 |
|---|---|---|---|---|
| Bottom mounting holes | 4 × M2.5 on 43.00 × 43.00, 4.0 deep max | M2.5 screws through a mounting plate | designed | all |
| Optical band | z 23.35–41.30, 360° | keep-out for mounts, covers and cables | designed | all |

## Sizes

| hole | x (mm) | y (mm) | thread | depth (mm) |
|---|---|---|---|---|
| 1 | -21.5 | -21.5 | M2.5 | 4.0 |
| 2 | 21.5 | -21.5 | M2.5 | 4.0 |
| 3 | -21.5 | 21.5 | M2.5 | 4.0 |
| 4 | 21.5 | 21.5 | M2.5 | 4.0 |

## Where the files are

- SLAMTEC: [RPLIDAR S3 datasheet v1.0 (CN)](https://bucket-download.slamtec.com/df7f5cd59db82931de79c9f2106c2cb85e10418b/SLAMTEC_rplidar_datasheet_S3_v1.0_cn.pdf) — web — Publisher's page; dimensions are facts
- SLAMTEC: [RPLIDAR S3 specification image](https://image.slamtec.com/images/s3/pc/s3-spec.webp) — web — Publisher's page; dimensions are facts
- OpenZeka: [SLAMTEC RPLIDAR S3 datasheet v1.0 (EN)](https://openzeka.com/wp-content/uploads/2023/10/SLAMTEC_rplidar_datasheet_S3_v1.0_en.pdf) — web — Publisher's page; dimensions are facts

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

Index: https://xemstudio.com/files/hardware/slamtec-rplidar-s3/index.json

- slamtec-rplidar-s3: [STEP](https://xemstudio.com/files/hardware/slamtec-rplidar-s3/slamtec-rplidar-s3.step) · [STL](https://xemstudio.com/files/hardware/slamtec-rplidar-s3/slamtec-rplidar-s3.stl) — SLAMTEC RPLIDAR S3 lidar: 55.6 mm base, M2.5 mounting holes and optical window height

## Questions

**What is the RPLIDAR S3 mounting-hole pattern?**

Four M2.5 threaded holes on a 43.00 × 43.00 mm square in the bottom face, max 4.0 mm screw engagement.

**How big is the RPLIDAR S3?**

55.60 × 55.60 mm base, 41.30 mm overall height; the base is 23.35 mm tall.

**What must stay clear?**

The optical housing from 23.35 to 41.30 mm above the mounting face, all the way round.

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