MiraBot S6 — A Refined, Quiet, High-Precision 6-Axis Evolution of SR6

Gesmax · December 11, 2025, 3:59pm

This topic covers the MiraBot S6, our commercial-grade refinement of the classic SR6 design.
If you’re looking for the lighter MiraBot Lite model, that thread is here.

MiraBot S6 preserves the proven SR6 motion architecture, but nearly every structural and electrical detail has been reworked for smoother motion, lower noise, easier maintenance, and a far better user experience — while staying fully compatible with existing OSR software.

Key Highlights

Smooth, precise 6-axis motion (Stroke / Roll / Pitch / Surge / Sway / Twist)
Significantly reduced mechanical noise via refined geometry + low-noise servos(35kg Coreless Servo )
Custom PCB + safer power design for stability and reliability
Modular expansion system — plug-in add-ons, no soldering or disassembly
User-serviceable design for long-term maintenance
Works seamlessly with MiraPlay AiO (no PC needed)

What Is MiraBot S6?

MiraBot S6 is essentially an SR6 that has been fully refined into a stable, quiet, user-friendly 6-axis platform.
While the core motion concept remains unchanged, the execution is significantly improved in durability, consistency, noise, and overall usability.

It is designed for users who want SR6-level performance but prefer a polished, ready-to-use device with a strong supporting ecosystem.

Engineering Improvements (Refined SR6)

1. Mechanical refinement for stability & noise reduction

We redesigned and tuned the internal structures to reduce vibration, friction noise, and resonance.
Several multi-piece components were consolidated into stronger one-piece elements to improve rigidity and ensure smoother, more consistent motion.

All exterior and structural parts are printed in premium matte PETG, selected for its high strength, heat resistance, and clean, non-glossy finish — resulting in a refined and uniform overall appearance.

Note:The “Original Version” is our early SR6 build (not a third-party device).

2. Dedicated PCB & safer power path

The S6 uses a custom PCB that improves power delivery, heat behavior, and cable routing.
We also use industrial-grade, high-current power switches and connectors for safer and more reliable long-duration operation.

3. Modular expansion — no soldering, no disassembly

Add-on modules can be plugged in directly without opening the robot or sending it back for upgrades:

Twist unit
T-Valve
i-Lube
Future expansion modules

Users can start simple and expand anytime, or purchase the full module set for the best value.

4. Simplified Maintenance & Extended Lifespan

We redesigned the internal layout and assembly flow so that servo and component replacement is straightforward and user-friendly — even for first-time builders.
This not only reduces long-term ownership cost but also keeps the S6 maintainable for many years.

And to make things even easier, we provide step-by-step servo replacement video guides, so users can service the device with confidence.

servo264×225 9.94 KB

5. Easy onboarding for non-DIY users

The S6 ships:

fully assembled
fully tuned
fully tested

We provide:

step-by-step video guides
Technical support via email

so new users can start confidently without the complexity of a DIY SR6 build.

Motion Performance

6-axis coordinated motion demo

Raw noise test (no audio processing)

Low-Speed Operation: 40~48 dB (Quiet room level)
High-Speed Operation: Approx. 55 dB (Normal conversation level)

Measurement Conditions: Measured with a specialized noise meter under 400g load at a distance of 50cm from the device. Testing included full-axis motions.

These show the actual behavior and noise profile better than any text description.

Powered by MiraPlay AiO — The Biggest Difference From Any SR6

This is where MiraBot becomes more than hardware.
Unlike a traditional SR6, MiraBot S6 is built around MiraPlay AiO, our smartphone-based motion engine.

What this means:

No PC required for video sync, custom motions, gesture control, or remote play
Truly plug-and-play — power on, open the app, connect
Setup takes under 30 seconds
Monthly feature updates (recent additions include: Multi-Axis Assist, UDP streaming, VR sync improvements, Gesture Sync 3-mode upgrade)
Works anywhere — bed, sofa, small room, hotel
Full OSR compatibility + extra MiraPlay-exclusive capabilities

Why this matters

For many users, the biggest pain point of SR6 is software complexity.
MiraPlay AiO removes this barrier completely and turns the S6 into a standalone, smartphone-driven multi-axis system.

More details about MiraPlay AiO

S6 vs Lite (Quick Overview)

Feature	MiraBot Lite	MiraBot S6
Axes	3–4	5–6
Noise	Very low	Ultra low
Structure	Lightweight	Reinforced, stable
Modular System	Twist	Twist/T-Valve/i-Lube
Use Case	Casual / beginners	Full multi-axis enthusiasts

Ordering & Availability

MiraBot S6 ships:

fully assembled & fully tested
with MiraBot firmware pre-installed
in discreet packaging
within 48 hours of order

Limited-Time Bonus for ES Members

For a limited time:

All MiraBot S6 (Including Twist Model and Open Model) orders include a free Desk Mount & Sleeve.

Fullset purchases offer the best overall value.

ES members who leave a comment in this thread and note their forum ID when ordering will receive a free USB heating rod.

Learn More

Just pulled the trigger!

I decided to go all-in and just bought the Full Set SR6 AND the Open Receiver. I’m really looking forward to getting my hands on this build, though I admit I have a little bit of “QC anxiety” from past experiences.

Had a Craftyhandy Built one that overheated and melted the Servo mounts over and over again.

That said, reading through the specs here gives me a lot of hope that this won’t be a repeat of that disaster.

Fingers crossed this is the stable platform I’ve been looking for! will provide a comprehensive test as soon as I get my hands on the device.

Wish that would´ve been available sooner, would´ve saved me 500 Bucks

rukaP · December 17, 2025, 12:47am

another question though, how do i get my account? via the email i used when ordering? I selected “create an account” but nothing happened

Gesmax · December 17, 2025, 1:56am

Thank you for the trust and support—we really appreciate it.

I completely understand the QC concerns. Rest assured, every unit is thoroughly inspected and stress-tested before shipping to ensure it’s in a stable, ready-to-use condition. If anything does come up, just reach out and we’ll take care of it.

Regarding your account—thanks for flagging this. I’ll double-check the issue on our side. For now, please try “Sign Up” at the top right using the email from your order. If it shows that the account already exists, you can reset your password via “Forgot password” on the login page.

Looking forward to your test results, and I hope this turns out to be the stable platform you’ve been looking for.

YamazakiKatsumi · December 18, 2025, 7:30am

The S6 is honestly looking really tempting, especially the external module port,that seems super handy. Before I pull the trigger though, I just want to double check a couple of things. If I want to switch between the twist and the open receiver, is it basically just unplug and swap? And thinking long term, if something like a servo ever needs replacing, is that something I could realistically do on my own, or is it kind of a pain?
Appreciate it!

Gesmax · December 18, 2025, 8:54am

Glad to hear the S6 caught your eye

Yes — switching between the Twist and the Open Receiver is basically unplug and swap. Everything connects through the external module port, so there’s no need to open the unit or do anything complicated.

As for servos: we use high-quality units, so under normal use they generally don’t need replacing. If something unexpected ever happens, the process is straightforward — it’s just a few screws and a bit of patience. There’s no soldering and no risky or stressful steps involved.

And of course, if you ever need help, we’re happy to provide remote guidance.

Hope that clears things up — feel free to ask if you have more questions!

Zel · December 18, 2025, 7:07pm

I already have an sr6 that I built but I’m just curious how the heat is handled for long/fast sessions as there doesn’t appear to be any fan or cooling? I know a lot of people also like to put a blanket or something over the top and I’m wondering if there might be heat build-up issues in this case. How doable would it be for users to upgrade to include a fan with your system?

ifarfromherei · December 18, 2025, 10:34pm

so i have a question, i ordered the S6 full set. i noticed though that in the photos there is no open sled for onaholes in the photos or the included supplies. just the module case. i also looked on the accesories page and didnt see the option to add that on. it would be nice to be able to swap between fleshlight style sleeves with all the bells and whistles to a more simple set up with the open sled. if its not included is there a way i could get the STL files to print one of those sleds for myself? because it is already on the way and i do not see a way to purchase one from you guys.

rukaP · December 18, 2025, 11:31pm

@Zel
I actually did a deep dive into the servo specs used here (MBS2035). While there are no active fans, these servos have a built-in Thermal Protection (>70°C).
This is a huge difference compared to standard DIY builds. If heat builds up (e.g., under a blanket), the S6 won’t melt the PETG frame or burn out cause it warps at around 80 degrees Celsius. Instead, the servos will trigger a safety shutdown to cool off.
I’m speaking from experience. I’ve had a CraftyHandy melt on me twice because those standard “45kg” high quality servos lack this specific cutoff and just keep heating up until they destroy the plastic. So, passive cooling here means “safety shutdown” rather than “meltdown.”

@Gesmax
You should really highlight this Thermal Protection / Anti-Meltdown and 7 second auto shut-off when overloaded feature more prominently in the main post!
For me, coming from standard SR6 builds where my servos often overheated and warped the frame, knowing that the S6 protects itself electronically was a massive selling point.

rukaP · December 18, 2025, 11:35pm

Yeah that’s what I noticed as well, thankfully I was able to add one to my order because there actually is a listing for the basic receiver.

Zel · December 18, 2025, 11:35pm

Thanks for your reply. It’d still be ideal if the servos never reached the point where they have to turn off to protect themselves in the first place but yeah that’s definitely much better than them warping the plastic parts and burning out

rukaP · December 18, 2025, 11:37pm

Well if you really want to be extra sure you could always install a small usb fan. Maybe they’ll think about offering that as an add-on. But still, shouldn’t cause issues. It really seems like they thought this through

rukaP · December 18, 2025, 11:57pm

Should be easy to add a fan to the back of the S6 or Desk Mount. Probably let it suck the air in through the back and push it out where the vents for the servos are

ifarfromherei · December 19, 2025, 12:01am

No no, I mean the open one that snaps into the twist ring this seems to remove the twist option. I saw this on the site but that is not the one the is included in the twist version of the kit. But seems to be missing in the full version of the kit.

ifarfromherei · December 19, 2025, 12:04am

This thing.

rukaP · December 19, 2025, 12:04am

Ah I see! Yeah you’re right that is not offered separately. I still have my crafty handy twist onahole adapter so I didnt even think about that. You can order it separately from there if you don’t wanna print it yourself