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Coaching Spotlight: @vreleventabletennis on Youtube

My Brazilian friend, real life table tennis coach Wlad is making some amazing FREE training tutorials on Youtube.

In the videos, he covers all the basic techniques, teaches you how to handle the spin or the speedy serves, and even goes beyond that to teach you different ways of handling certain spins in the advanced training programs. All videos come with downloadable ball machine drills!

I think it’s wonderful that ElevenVR is bringing table tennis to a lot of people that have never or rarely played the sport in real life, but I also think it’s extremely important for such players to at least try to learn the proper TT techniques: Good TT techniques are more efficient, lead to less injury. Together with good adapters like SolidSlime, they are the keys to easier real life<->VR skill transfer.

So no matter what your level is at, please check out his Youtube channel. It can be the key to the next jump in your Elo rating.

Basic Training Program Playlist
Advanced Training Program Playlist
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Announcing CyberPen Q3: The PENHOLD adapter

Hi all, I’m happy to announce CyberPen: the first known Q3 PENHOLD adapter that doesn’t suffer from any obvious tracking problem in any strokes, no matter RPB or TPB(*).

Comfort-wise, this adapter supplies the FULL racket surface, thus is suitable for all kinds of finger placement. It also has a handle that is a combination of both CPen and JPen.
Since the Q3 controller is placed near the handle, we use various methods to adjust the center of weight upwards (varied infill, rubbers, possibility to add additional weight). The result center of weight is slightly above the handle top edge. Not particularly like realistic paddles, but is surprisingly comfortable to swing around.

As always, the adapter is available at https://vrpingpong.net/ along with the adapters for other styles and other devices.

(*)RPB: Reverse Penhold Backhand
TPB: Traditional Penhold Block
For video please search for “RPB vs TPB” on Youtube.

Below is a demo of the adapter!

Link to product here:

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Tip to strengthen haptics in Eleven Table Tennis

This is a cool trick that not everyone knows, but it’s an extremely important one, especially for adapter/paddle users.

To boost the haptics, open Menu->Settings, click the “carrot” icon on the top right to open the advanced menu, open “controller settings” and increase both haptics sliders to the right most position. The first one increases the rumbling strength, and the second one increases the rumbling time. Both contributes to the feeling.

While you are in there I’d suggest to enable “catch haptic feedback” too. That one makes the non-paddle controller to rumble when a ball is spawned.

Video version: https://youtube.com/shorts/N4Zi-GPbFNs?feature=share

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SolidSlime Quest 3 Table Tennis Adapter Changelog: 2.1, 2.2

v2.1

  • The edge that clips to the battery compartment of the controller has been rounded. This makes it easier to put the controller in and out.

v2.2

  1. The nuts don’t fall out anymore.
  2. There is a hole at the bottom of the handle to allow wrist strap to be used.
  3. The nut and screws are also now perpendicular to the adapter surface.
  4. Now it should be possible to use the bulky rechargeable batteries that come with official Meta rechargeable dock. I haven’t tested this it because I don’t have that battery. The change is done based on customer feedback.

As always, if you have bought a SolidSlime adapter before and would like to upgrade to the new version, please reach out to me (thesolidslime@gmail.com) for discount. Thank you.

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VR Accessory Design: Paddle Position

As a designer of VR accessories like Table Tennis Adapters and Pickleball Adapters, I often get asked about how to make a good in-game paddle position, which is understandable: having a good in-game paddle position is one of the keys to make real life <-> VR skill transfer as smooth as possible.

So here is a step by step guide to make sure you will have a near perfect paddle position in Eleven Table Tennis.

(Other games can use the similar methodology as well. Eleven Table Tennis currently provides the best tool to achieve the goal. Thanks carrotstien!)

1. Preparation

This is an optional step.
Ideally, you should make an adapter with a straight handle (without the “side pieces”), like below. The straight surfaces will help in the next steps.
Also ideally, you should have a box that has two precisely parallel surfaces.

2. Open “Paddle Calibration” tool in game.

From now on all steps will be done using this tool.
It’s located in “settings->🥕->(look at left side) paddle calibration”.

3. Calibrate XYZ rotation

Put the box on the floor. (Why use a box instead of just the floor? Because for “flat” position, it’s not possible to put the paddle on the floor)

Put the paddle “flat” (the largest surface on the paddle facing downwards) on top of the box. Click “X ROTATION FLAT” a few times with the other controller, save, and then do the same with “Y ROTATION FLAT”.

Put the paddle “up” (the bottom of the handle facing downwards) on top of the box. Do the thing for all buttons with “UP” in it.

Put the paddle “side” (the side of the handle facing downwards, this is why it’s useful to have a straight handle) on top of the box. Do the thing for all buttons with “side” in it.

Obviously, make sure the LEDs are in view while doing everything.

Now all the rotation values should be correct.

4. Calibrate XYZ position

Pick up the paddle , hold it in one hand, and then use the other controller to trace the contour of the paddle . Use the contour of the parts that are symmetrical, for example, handle or blade. Observe in VR while doing the tracing.

If the other controller clips into the handle on one side but is far away from the handle on the other side, then click one of the “adjust X/Y/Z position” buttons, press and hold the grip button on the other controller while moving the paddle to adjust the position on that axis. Save after you have got a good result after each axis.

X is left/right along the blade surface, and can be calibrated by using the handle as reference.
Y is up/down along the blade surface (tip: use the bottom of the rubber as reference).
Z is forward/backward against the blade surface, and can be calibrated by using the handle as reference.

After these steps you should have a “good enough” result, because both rotations and positions are very accurate.
But if you are as OCD as me, read on!

5. Bonus: Calibrate using in-game paddle model

Here’s the model file of the paddle model in Eleven Table Tennis, with permission from the developer:

DominatorPaddle.stl

Merge it with the adapter model in some way. Print it out.

Now you can calibrate everything by tracing the contour of this new…stitch-up monster paddle adapter and make sure that in VR, the controller model in the other hand grazes the contour of the racket perfectly on all the edges/surfaces.

And that my friend, is how I got the perfect paddle position of SolidSlime Quest 3 Adapter for Eleven Table Tennis.

I hope I didn’t miss anything. If I did, or if you have a better method, please feel free to leave a comment or send me a message!

Video version made by Bonsaizocker:

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Penhold adapter v2 for Eleven Table Tennis on Quest 2

Attention, PENHOLD players in the VR world!

We understand your struggles and are thrilled to present an adapter that exceeds all your expectations. Say goodbye to compromises and embrace a superior TT experience with the SolidSlime Penhold adapter v2 for Quest 2.

Drawing from my personal experience of two decades in penhold play (only adopting shakehand since I started playing Eleven Table Tennis!), I was deeply frustrated by the lack of a comprehensive solution. That’s why I collaborated with esteemed penhold players like FocusGUANfor several months, and today, I’m proud to announce the launch of the Penhold adapter v2!

Designed and meticulously tested, this game-changing adapter is now available for order in our shop, with worldwide partners synchronized for a seamless experience. The shop address is at https://vrpingpong.net/ .

Similar to our adapters for other handle types (FL/ST/AN), the CPen adapter features user-friendly thumb screws, allowing effortless installation and removal in a matter of seconds. However, what truly sets the CPen adapter apart are its unique design elements catered specifically to penhold players. Take a look at the image below to see for yourself.

The most significant improvement in this version is the ample space on the backside, providing a comfortable fit for all your fingers. Whether you prefer the reverse penhold backhand (RPB) or the traditional penhold block (TPB), this adapter will feel just as comfortable and natural as your real-life racket.

We are incredibly proud and excited about the outcome of this project, and we genuinely believe it will bring immense joy to countless penhold players like you.

/SolidSlime

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ETT New UI: How to config adapter position and fix “bent wrist”

bonsaizocker has taken the time to write a tutorial for the racket settings in new UI.
If you can’t find how to set up SolidSlime adapter, or don’t know how to configure rubbers in new UI, please read this.
https://docs.google.com/document/d/1gaDnf16AoeNsqcItEDVIktwTTDyidbH3kYIbAtUiKV4/edit?usp=sharing

To fix “bent wrist” with your own avatar, click this “reverse grip” button when you are editing paddle position:

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Announcing ETT adapters for Meta Quest Pro!

Quest Pro controller is a brave new step by Meta. It can be used with either Quest Pro headset, or Quest 2 headset (which I am using).

This controller uses its own 3 cameras to track itself. So the user doesn’t need to worry about controller leaving the headset camera view again. In ETT terms, this means the player can perform a very large&sustained back-swing for that juicy forehand loop. They can also do behind-the-back shots with ease.

Benefit comes with cost too, the Quest Pro controller itself is around 160g, so with the adapter, the whole racket is around 210g, which is still within the range of real TT paddle weights, especially for loopers. 

For me, the weight actually was quite easy to get used to. The racket still has a realistic center of weight, so with the somewhat proper technique, I didn’t get any injury or discomfort after the 2 weeks ongoing testing. In fact, I am in love with this controller right now, because the added weight helps stabilize the racket angle, and I feel its tracking is actually slightly better than the Quest 2 controllers.

I’ll keep using the Quest Pro controllers with my Quest 2 headset and see if it will help me to break the 2700 ELO threshold.

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SolidSlime Quest 2 adapter changelog: 2.1

v2.1

  • Thumb screws are used to secure the two pieces of the adapter. So there’s no need of screw drivers anymore! The weight has increased by 2-3 grams, but I think the convenience is worth it.
  • Changed main color from dark grey to light grey. This color matches the Quest 2 controller quite well.
  • Handles are now printed with Wood PLA to make it both look better visually and more comfortable to hold. Smells nice too! (Since there are difficulties in sourcing and printing in Wood PLA, I’m not sure how long I’ll keep doing this. )

You can find the latest version of SolidSlime Quest 2 adapter here:

https://solidslime.net/product/solidslime_ett_adapter/