Lebois Racing is also the right address for good deals! Here’s a quick overview of the available promo codes not to be missed for the AliExpress Anniversary Sale (March 16–25, 2026)!

⚠️ Quantities are limited – be quick to grab your discount!

Official sale period: March 16–25, 2026

Main benefit: Up to 80% off worldwide, up to 90% off in the USA and Mexico, and up to 60% off in France.

Click on your country to jump to the dedicated promo codes:

• USA
• United Kingdom
• Germany
• Spain
• Brazil
• France
• Others

Promo Codes for USA

Validity: March 16, 2026 00:00 – March 25, 2026 23:59 (PST)

Benefits: Up to 90% off + extra event codes up to $100 off

Tip: New user codes available until March 31, 2026: NEWUS4OFF ($10-$4), NEWUS10OFF ($40-$10), NEWUS12OFF ($80-$12).

Promo Codes for United Kingdom

Validity: March 15, 2026 23:00 – March 25, 2026 22:59 (GMT)

Benefits: Up to 80% off

Tip: New user codes valid until April 9, 2026: AEUKNEW4 (£6-£4), AEUKNEW6 (£23-£6).

Promo Codes for Germany

Gültigkeit: 16. März 2026, 00:00 – 25. März 2026, 23:59 (deutsche Zeit)

Vorteile: Bis zu 80% Rabatt, kostenloser Versand

Promo Codes for Spain

Validez: 16 de marzo de 2026 00:00 – 25 de marzo de 2026 23:59 (hora local)

Beneficio: Hasta -80%

Promo Codes for Brazil

Validade: 16/03/2026 00:00 – 25/03/2026 23:59 (horário de Brasília)

Benefícios: Até 80% off, envio do Brasil e mais de R$1400 em cupons

Promo Codes for France

Validité : du 16 mars 2026 à 00h au 25 mars 2026 à 23h59 (heure française)

Avantage principal : Jusqu’à 60% de réduction

Others

More country-specific codes may also be available for regions such as the Netherlands, Poland, Ukraine, Italy, Portugal, Belgium, Sweden, Finland, Austria, Denmark, Switzerland, Ireland, Czech Republic, Canada, Mexico, Australia, Israel, Japan and Gulf countries.

If your country isn’t listed above, check AliExpress’s official landing page for your region to see the available Anniversary Sale coupons.

The post Aliexpress coupon codes – Updated Discounts ! appeared first on Lebois Racing.

Running until the end of October. Users who purchase Pimax flagship products — Crystal Light or Crystal Super (50 PPD / 57 PPD / Ultrawide) — will receive a free high-value VR accessory or flight simulation add-on package, greatly enhancing their immersive experience.

How to Participate:

🎁 How to join:

1️⃣ Visit the event page:
👉 https://pimax.com/pages/fall-into-immersion-deals/?ref=leboisracing
2️⃣ Choose your headset:

• 🧊 Pimax Crystal Light → https://pimax.com/products/pimax-crystal-light/?ref=leboisracing
• 💎 Pimax Crystal Super → https://pimax.com/products/pimax-crystal-super//?ref=leboisracing
  3️⃣ Add both the headset and your chosen gift to the cart.
  4️⃣ Enter promo code FALL at checkout to claim your gift for free.
  5️⃣ After confirmation, a Pimax rep will send you your gift redemption code within 24 hours. 🎫

⚠️ Note: Gifts are limited and available first-come, first-served.
⏰ Event ends October 31st, so don’t miss out!

👉 Full details: https://pimax.com/pages/fall-into-immersion-deals/?ref=leboisracing

The post Pimax “Fall Into Immersion” Event is Live: Claim Free VR Accessories & Add-Ons! appeared first on Lebois Racing.

• No Turn fix: the upper bearing lip (highlighted in blue on the image) had been missing since the last update (LHD only). If your gearbox is already printed, you can replace this lip with an M5 washer.

• Seq holder RHD: a small piece of plastic was sticking out.
• Body2 get rid of a feature that was canceled below the carriage
• Major cleanup work on my side to remove duplicate functions, fix errors, and completely reorganize the source files in order to… archive this project.

Yes, indeed, we’re reaching the end of the road for the V10. The 3D part is finalized. There are still a few improvements to make on the firmware, but the project has finally reached maturity. That doesn’t really show in this update, but cleaning up all the files takes a huge amount of time—and it’s a necessity for the future.

I can already hear some saying that the end of V10 means the beginning of V11. Not really. There are too many ongoing projects right now to start developing a V11, and I don’t yet have enough ideas to justify one. Well… I might have a lead… but that’s something we’ll have to discuss together.

Meanwhile, I’ve mainly made progress on two projects:

1. Competition Control Box: added support for the 6th actuator, and a complete code overhaul to allow configuring the control box directly through the Arduino IDE serial monitor. Basically, we’ll be able to communicate with the box just like with the driver:
   • Send P to display the parameters menu (set max travel, margins, connected motors)

• • Send F to display the functions menu (calibrate, test, etc.)Send
• • D to display all saved parameters

It might sound a bit abstract, but the code is structured so that at every step, the user is guided with clear instructions on what each command does.

2) GT Tensioner: I’m continuing the first driver tests. At first glance, the P1 will still remain more refined (more responsive/accurate/silent). I hope the GT V4 will be ready by December.

As usual, the 3D files are available here for PRO contributors:
👉 https://lebois-racing.com/exclusive-files-for-pro-and-elite-patreons/

The post SRT Gearbox : August Update and news appeared first on Lebois Racing.

The long-awaited new PCB is here! It brings several changes. The most important is the replacement of the Texas Instruments sensors with classic A3144s…yes, the same ones as in V9. It was the TI sensors that were causing a latency issue. This is now resolved. The only slight drawback is that the magnet must be oriented the right way. But unlike V9, we have our own little LEDs to check the orientation, so it’s not a deal breaker either.

Furthermore, I disabled the Arduino pins that aren’t needed for the gearbox’s operation (3.3V pin, Aref pin, etc.). This avoids unnecessary soldering and potentially damaging the PCB. I also optimized the routing to prevent it from passing near the pins that need to be soldered.

The chip that detects and measures the current has been replaced with a faster model. Okay. For now, it’s useless.

Finally, I replaced the 3-pin connector of the sequential board with a 2-pin one.

This new PCB requires new firmware, which will be released soon.

The PCB is available in limited quantities on the store. Industry&CNC will soon offer it for purchase as part of the kit.

3D fixes

On the 3D side, the update is minor and will only be of interest to those who have not yet printed the parts:

1. Fixed a minor error on Body2 RHD
2. Fixed the RHD and non-RHD servo mounts so that the screws are better positioned relative to the motor.

Changing the sequential feeling

The new long stroke for the sequential is very satisfying. However, I don’t intend to stop there. So I installed magnets in body2 as opposed to magnets in the carriage to achieve a harder end stroke and further improve the feel of the sequential.

It’s a failure. There you have it… In fact, the magnets are very weak compared to the force applied, and after testing it numerous times with and without the magnets, I didn’t feel any difference… But hey, it proves there’s still room for improvement!

What’s next?

As you already know, I’ll never stop improving this V10. I always have ideas for further development. I’m thinking a lot about the PRO version right now. It’s possible that the next developments will be preparations for this version…

There are also many new features in the pipeline for the various other projects… I just need to find the time.

The post SRT Gearbox : April update appeared first on Lebois Racing.

…

Not at all…

Come on, let’s get to it with a nice clean log that no one will say boooouuuuu it’s not clear

Update of the sequential

The main subject of this update is the sequential. We keep the idea of ​​the previous update: a single switch, and a longer stroke. On the other hand, we change the switch, we need these roller switches which are bigger (and are therefore more tolerant to printing deviations):
https://amzn.to/4hfz1eg

(if you place an order on the store, I can give you one… )

I’ll see next week to modify the shopping list on the Industry&CNC side.

So, new Body2, new Seq Holder. By the way, I cleared a little space for the tracks on the carriage… just in case… But it’s not necessary to modify it. And new Slider and Slider cover. The tracks remain the same. I also added stops on the slider to prevent us from going too far in sequential mod. I do not guarantee that it is perfect but as it is I find that the sequential has never progressed so much!

By the way, on Body2, there is a very small correction: visibly on my gearbox, the M5x50 of Turn touched a little…

So I added a chamfer at this location.

Eclutch

Then on the Eclutch side: I corrected the shopping list: the din7991 M3x10 is useless… and I added a diagram with where which screw goes.

And I took the opportunity to initiate what must be initiated: several behaviors for the eclutch. Well for the moment it is basic:

C1: we press the clutch to unlock the box.

C2: release the accel to unlock the box

C3: the box is only blocked in neutral and we act on the clutch to release it.

If some want to work on more advanced behaviors, they can share them in comments on the doc page!

On the Body1 side, I raised the reverse gear screw a little so as not to have to twist the screw… too much. There are many differences from one assembly to another… I will see in the future if it is necessary to raise it even more.

The rest

For information, the solution to solve the latency problem will be presented soon.

The post SRT Gearbox : March update ! appeared first on Lebois Racing.

The idea is to use the hall sensors to capture the gear change in sequential. We keep only one of the mechanical micro switches, which is only there to know the mod of the box (h or seq).

I remind you that the files that change are:

• body2
• slider
• slider cover
• seq track v2
• seq holder

It is possible to test the update without changing body2, but body2 will limit the travel a little… If you just want to test the feeling, you can:

1. remove seq holder
2. update only the slider, slider cover, track seq.
3. mount the new slider

Of course you won’t have the functional electronic part but it can allow you to see if the update interests you. If anything, without flashing the new code, and without putting the seq holder back, you can reassign 3 and 4 in play to the seq gear change, and test…

Ok if we want to update everything, we print everything. What changes in terms of assembly is that there is only one switch on the seq holder. On the wiring side, you can wire the switch on any pin for the sequential. In other words: you just remove one switch on the two:

Code-wise, you have to use RC2.

And that’s it.

I’m leaving the previous version online. I hope for as much feedback as possible to know whether to continue in this new direction or not.

The post How to apply the January update for SRT V10 appeared first on Lebois Racing.

New, more solid machining

The Ultimates bring minor changes: some small plates see their thickness increase from 3mm to 6mm. We also have the plate in contact with the accelerator foot which offers more height adjustment.

Seeing the machining of the plates, I had thought that we could adjust the plates in lateral position but no. I also understood why: if we allow the user to shift the plates laterally, the force applied by the user is no longer perfectly centered, which has the effect of twisting the pedal. So no it would not be visible or annoying in the short term. But a non-uniform effort would probably result in premature wear of certain components. In particular the loadcell might not appreciate it.

Axles mounted on ball bearings

Another improvement, the most useful in my opinion: the use of bearings instead of self-lubricating rings. I was not bothered by the noise on the PROs. But there is much less risk of being bothered by ball bearings, so I say yes!

Un nouveau logiciel : SimJack Control

The most important new feature is probably the new pedal calibration software. On the Pro version you have to use the good old DiView.

Here we have software similar to what is done elsewhere: calibration of min and max, management of profiles, curves, automatic calibration…

The presentation is not the most neat but remains functional.

The price?

The transition from a PRO range to an Ultimate range, this normally implies torning apart the wallet, doesn’t it? Well no… curiously, the most high-end version is about 5% more expensive… Where the PRO version with three pedals costs about €175, the Ultimate peaks at €186 for the same configuration.

It’s confusing yes… In reality, it’s much more of a PRO V2 than an Ultimate version.. Besides, there’s a good chance that the PRO version will end up no longer being distributed. Time will tell!

Conclusion

This is a very positive upgrade. The price remains roughly the same while the quality improves. So if you are hesitating between the PRO and the Ultimate, choose the Ultimate (without the hydraulics dampers, I repeat it is useless). That said, we would appreciate it if SimJack got a little more involved and offered truly innovative features.

My Ultimates are patiently waiting for the move in a box, so we’ll talk about it again very soon!!! In the meantime, if you want to order your pedal set, take advantage of the Aliexpress promo codes that I regularly share on this page!

The post SimJack Pro VS SimJack Ultimate appeared first on Lebois Racing.

1. New slider

The biggest problem encountered concerns the tracks: they ultimately do not stay in place in the slider… the tolerances being too variable from one printer to another, the current solution cannot be retained.

Many of you have requested the return of a retaining screw. This solution does not really delight me for several reasons:

• it requires modifying the shopping list and therefore the screw kit offered by Industry&CNC
• it involves the use of a tool to change the tracks
• it is not necessarily durable: the thread in the slider can tire
• it makes the tracks more delicate to print.

So I opted for another solution: the end of the slider (called slider cover) comes to secure the tracks, and it is then the nut at the end of the main axis which comes to block everything. No tool, no wear.

At the same time I still added small grooves on the tracks and the slider in order to keep them in place at least for the time of the change. These grooves can be sanded if necessary if it does not fit.

It is therefore necessary to reprint the slider and the tracks.

2. Modified Seq Locker

You also found that Seq Locker could come into contact with Body1. Indeed it is flush and I can imagine that with some printers it touches frankly. Material was removed to be sure that it does not touch.

The rest of the parts do not need to be reprinted.

3. Seq Holder: orientation problem

I have been informed of broken stops on Seq Holder. It is absolutely necessary to print this part in the correct orientation to avoid breakage. The orientation in the first uploads was not correct. This is now corrected.

The goal for next month is to rework the eclutch calibration code. You have brought back incorrect rotation directions. For my part, I have rechecked and the direction is correct. In any case, I will add the possibility to modify the rotation direction easily. I will also add a clearer debug.

There were many uploads in the first few days to correct obvious omissions and documentation errors. From now on, updates will be clearly documented.

The updated files are available for download on the usual page.

The post SRT Gearbox : October Update ! appeared first on Lebois Racing.

Let’s dive into its features.

Security

Safety is the number 1 objective of the G Force Control Box. Incorporating an EMI filter, the box is able to cut off the current thanks to an integrated relay.

The box detects if the motor is running in a no-load condition (driver not present in the simulator), and then cuts the current.

All cables are shielded, and the PCB implements best practices to avoid electromagnetic interference.

Finally, the remote control panel allows the power electronics to be positioned far from the simulator.

Easy wiring

All cables are supplied ready to install. All connectors are unique, making the tensioner easy to plug in.

Dual motors and lateral forces

The box can manage two motors completely transparently: if you only have one motor, plug it into the left or right port and set the “Lateral” potentiometer to the minimum position.

If you have two motors, simply turn the Lateral potentiometer to activate the lateral effects.

Simhub compatible

The harness tensioner is Simhub-compatible, making it easy to use: as soon as Simhub starts up, the connection is automatic.

Activation et désactivation automatique

Thanks to its integrated power management, and the information provided by Simhub, the tensioner is automatically deactivated if the box is not connected to Simhub, or is not in play. The screen turns off after few seconds if Simhub is disconnected.

Documentation

Manuel v1.1

The post G Force Control Box for the P1 Seat Belt Tensioner appeared first on Lebois Racing.

The stand consists of two parts, sandwiching the keyboard. Both parts use M5 screws.

Need support for another keyboard? Don’t hesitate to contact me!

The post Rii K18 keyboard stand appeared first on Lebois Racing.