OSR2 Parts List: Complete Guide to Building Your DIY Open-Source Stroker Robot
Are you ready to build your own OSR2 stroker? The OSR2 is an affordable, open-source multi-axis robot designed for adult entertainment, syncing with videos or scripts to control toys like Fleshlight. This DIY project is perfect for tech enthusiasts looking for a customizable sex toy robot. In this guide, we’ll provide a full OSR2 parts list with quantities, affiliate links (we may earn a commission at no extra cost to you), and tips to get started. Whether you’re searching for “how to build OSR2” or “OSR2 DIY tutorial,” this is your one-stop resource.
OSR2 Stroker Robot Example An example of a fully assembled Basic OSR2 device (via Thingiverse). Perfect for visualizing your build.
Why Build an OSR2? Benefits and Tips
- Affordable DIY Sex Toy: Total cost around $100 with basic parts.
- Customizable: Add features like Bluetooth control or advanced scripting.
- Open-Source Community: Join the Tempest community and meet other creative builders and makers.
- Pro Tip: You’ll need 3D-printed components and the official build guide (join Tempest on Patreon for access to the updated files needed). “Better” servos usually equate to a better user experience (quieter, and more responsive).
OSR2 Basic Parts List
Here’s the complete bill of materials (BOM) for a basic OSR2 build. We’ve included Amazon affiliate links where possible—click “Buy Here” to shop.
*For items marked with the asterisk, these items are already included in the recommended purchase links. If you decide to source individual components yourself, remember to also purchase these items.
| Part | Quantity | Link | Tips |
|---|---|---|---|
| Romeo BLE Mini v2 or v1.1 | 1 | Buy Here | |
| Micro USB Cable | 1 | Buy Here | |
| Power Supply | 1 | Buy Here | |
| Servos (Standard Size) | 2 | Buy Here | Buy Here Alternative cheaper servos (louder operating sound) |
| Metal Servo Horns | 2 | * | |
| Female Barrel Jack | 1 | Buy Here | |
| Zip Tie | 1 | Buy Here | |
| Rubber Grommet | 4 | Buy Here | |
| Bolts: | |||
| m3x6 | 3 | Buy Here | |
| m3x10 | 4 | * | |
| m3x16 | 8 | * | |
| m4x10 | 4 | Buy Here | |
| m4x30 | 4 | * | |
| Nuts: | |||
| m3 | 8 | * | |
| m4 | 4 | * | |
| Washers: | |||
| m3 | 12 | * | |
| m4 | 4 | * |
Estimated Cost and Assembly Notes
- Total Estimated Cost: $80–$120 (excluding 3D prints and tools used for assembly).
- Tools Needed: Metric Hex Key set, patience, and a 3D printer (or 3d printing service).
- Safety First: Use proper wiring to avoid shorts. Test servos before full assembly if possible.
- Troubleshooting: If servos jitter, check power supply voltage (5V recommended for most servos).
This OSR2 BOM is based on official-recommended specs. There are a nearly unlimited ways you can upgrade and improve this device, join fellow builders in the official Tempest discord channel for help and advice.
FAQ: Common Questions About Building OSR2
What is OSR2?
The OSR2 (Open-Source Robot 2) is a DIY stroker device that automates adult toys using servos and microcontrollers. Created by a crafty engineer named Tempest, he shares his designs through Patreon and a Discord server.
Where to Get 3D Parts?
Download the project from becoming a member of Tempest’s Patreon.
Is OSR2 Beginner-Friendly?
Yes! With this parts list and basic maker skills, anyone can build it in a weekend.
Alternatives to OSR2?
Check out the more advanced SR6 or T-Code devices for more axes, but OSR2 is the best entry-level option. It is also recommended to start with the basic OSR2 to familiar with the basic build before moving onto more advanced or complicated devices.
Ready to Build Your OSR2?
Grab the parts above and start your project today! If this guide helped, share it on social media or Reddit.
For questions, comment below or join the Tempest discord community for advanced help. Happy building!
Disclosure: As an Amazon Associate, I earn from qualifying purchases. Links are affiliates.

