**Multi-stage compound gearbox with sequential gear reduction.**

The input gear with a radius of **4.75 mm** drives the first compound gear with a radius of **14.75 mm** on one side.

**_Each intermediate gear is a single solid part with two different radius:_**
- 14.75 mm on one side (driven side)
- 4.75 mm on the opposite side (driving side)

The large side of each compound gear is driven by the previous stage, while the small side drives the next stage.

This principle is repeated through all intermediate stages of the gearbox.

The first gear is a single 4.75 mm input gear, and the final gear is a single 14.75 mm output gear, without a secondary driving section.

**_All Paid STL's in 1 subscription_** - [https://patreon.com/ro_qd](https://patreon.com/ro_qd)

This design provides step-by-step speed reduction and torque multiplication in a compact and mechanically rigid structure.

With **_each stage, rotational speed is reduced by approximately 3.1×_**, while output torque increases accordingly.

The final large gear transfers motion to the central output shaft.

The gearbox is designed for smooth operation, stable alignment, and reliable power transmission.

Optimized for FDM 3D printing and DIY mechanical projects.

⸻

**Technical Specifications**

**_Gear radius:_**
- Input gear: 4.75 mm
- 3 compound gears: 14.75 mm / 4.75 mm (single-pieces)
- Output gear: 14.75 mm

**_Single-stage ratio:_**
- ~3.1 : 1

**_Multi-stage ratio (4 stages):_**
- ~93 : 1

**Recommended use:**
Robotics, camera rigs, motorized sliders, experimental mechanisms, custom automation.

**My projects:**
[My projects](https://roqd.one)

**Follow me on social media:**
[YouTube](https://www.youtube.com/@ro_qd)
[TikTok](https://www.tiktok.com/@rob.qd)
[Instagram](https://www.instagram.com/rob.qd)
[X](https://x.com/rob_qd)

MULTI-STAGE COMPOUND GEARBOX 93:1 | HIGH TORQUE SPEED REDUCER

GearBox.stl

**The MicroTron! You can now 3D print your very own Orbitron BattleBot with this 1/6 scale downloadable file!**

Attachments:
- MicroTron Bambu Layout.3mf
- STEP Assembly Files
- STL Files
- 1/6 Obitron Model - INSTRUCTIONS MANUAL.pdf


This formidable BattleBot has seen action in two Proving Grounds matches in Las Vegas. Now, you have the opportunity to have your very own 3D collectible model version of this legendary machine as part of a little Hacksmith history.


_We thank you for your support as proceeds go towards further Orbitron development!_


Don't own a 3D Printer? Order the [3D Model Kit here](https://hacksmith.store/en-us/products/orbitron-printed-model) or shop all of the Orbitron Collectibles at [hacksmith.store](https://hacksmith.store/en-us/collections/orbitron-collectibles)

Orbitron 3D Print Download (1/6 Scale)

MicroTron Assembly.STEP

Practical print-in-place design who fits an Arduino UNO and a breadboard, ideal for students or nomad makers. If you need an Arduino  or a breadboard, have a look here:

- Breadboard 
1. https://amzn.to/3eojCO9
2. https://s.click.aliexpress.com/e/_Dlyzzvp

- Arduino
1. https://amzn.to/3RLbC8v
2. https://s.click.aliexpress.com/e/_DEVibVZ 

If you want to print the logo in a different color, here you can find some useful information

IF YOU WANT A VERSION WITH CUSTOM LOGO, JUST SEND ME A MESSAGE ;)

Robotics

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MULTI-STAGE COMPOUND GEARBOX 93:1 | HIGH TORQUE SPEED REDUCER

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