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    #1

    TenniRobo vs Joola Infinity

    I am considering buying a table tennis robot. The two robot that I am considering are



    and




    Tenni Robo
    Pros
    - Available now
    - 3 wheels
    - Easy to use application
    - Configurable app: you can programm your own drills

    Cons
    -Pricier
    -Does not include catching net
    - Future support is not guaranteed




    Joola Infinity

    Pros
    -Cheaper
    -Includes Catching net
    -Established company, future support is guaranteed

    Cons
    - Available on December, maybe later
    - 2 wheels? (not clear)
    - Will the app be as user friendly? (not clear)
    - Can you program you own drills? (not clear)



    I would go for the Tenni Robo despite the price, but the lack of a catching net is an issue. What worries me as well, is future support in case of malfunction, breakdown etc. What about spare parts?

    On the other hand, I would wait for Joola Infinity given the fact that would be as good as Tenni Robo. The fact that it is not defined if you can program your own drills, is an issue.
    Also, if it has indeed only two wheels, that puts it behind Tenni Robo...

    So what are your thoughts/recommendations?

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  2. Kuba Hajto is offline
    says Equipment matters a lot to scrubs who can't make minor adjustments to their stroke.
     
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    #2
    I've bought Joola infinity so consider myself personally biased.

    The infinity has two wheels but whole head also rotates so you can get sidespin. Quote from FAQ (https://www.indiegogo.com/projects/j.../23387828#/faq)
    How many wheels does the robot have?
    Two wheels: one in the top and one in the bottom of the head.
    Quote from main page
    The Infinity Robot has two wheels which allows it to produce topspin, underspin, side spin and no spin while shooting with a frequency range of 30 to 100 balls per minute at varying speeds (2.5 mph to 45 mph) that can match even the highest caliber of players. You can also practice against any shot on the table since the Infinity Robot can seamlessly oscillate 150 degrees side-to-side and create ball trajectories of 30 degrees downwards to 50 degrees upwards.
    You will be able to program your own drills as it's stated in FAQ:
    Does the Infinity Robot have ball sequencing?
    The JOOLA Infinity Robot will shoot any combination of balls. You will also be able to program your own drills along with access to pre-programmed drills that come from our extensive network of world-ranked players and coaches.
    Whether it will be user friendly, it strongly depends on the user... Some say that Linux is the most user-friendly system ever, it's just picky of whom its users shall be. The very few mockups they shared on their website are promising though. A big pro of using Kickstarter and Indiegogo is that they can get early adopters' help with making the app the best it can be for the target user group. Also even if the user interface is garbage (which is unlikely tbh), you will most likely get help from Joola or this forum users. I asked them numerous questions on their Facebook, and they answered both rapidly and in great detail.

    I've decided to go with Infinity mainly because it is supported by a bigger brand, which in turn is kind of a promise of better support. Also, they update pretty frequently and the robot might be shipped even quicker than December. They are iterating over samples quite decently fast.
    Last edited by Kuba Hajto; 04-23-2020 at 12:16 PM.

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    #3
    Quote Originally Posted by Kuba Hajto
    I've bought Joola infinity so consider myself personally biased.

    The infinity has two wheels but whole head also rotates so you can get sidespin. Quote from FAQ (https://www.indiegogo.com/projects/j.../23387828#/faq)
    Practically, what is the advantage of the 3rd wheel,that Tenni Robo has? Does it offer spins that Infinity cannot produce?

    Quote Originally Posted by Kuba Hajto
    Quote from main page

    You will be able to program your own drills as it's stated in FAQ:
    That's great! I didn't know that.


    Quote Originally Posted by Kuba Hajto
    Whether it will be user friendly, it strongly depends on the user... Some say that Linux is the most user-friendly system ever, it's just picky of whom its users shall be. The very few mockups they shared on their website are promising though. A big pro of using Kickstarter and Indiegogo is that they can get early adopters' help with making the app the best it can be for the target user group. Also even if the user interface is garbage (which is unlikely tbh), you will most likely get help from Joola or this forum users. I asked them numerous questions on their Facebook, and they answered both rapidly and in great detail.

    I've decided to go with Infinity mainly because it is supported by a bigger brand, which in turn is kind of a promise of better support. Also, they update pretty frequently and the robot might be shipped even quicker than December. They are iterating over samples quite decently fast.
    My guess is that the app will be user friendly, but Tennis Robo's is very useful as seen in the video.
    And an established brand offers the security of future support and resale value.

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    #4
    Quote Originally Posted by Kuba Hajto
    I've bought Joola infinity so consider myself personally biased.
    I am also interested in making a pre-order for Infinity. I know that at the price of 549$ they include shipping.
    Do you know if custom charges are included as well?

    I'm pretty sure that I've read somewhere that they cover custom charges, but now I can't find it anywhere now.... Have they deleted it?

  5. Kuba Hajto is offline
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    #5
    Quote Originally Posted by Arkady
    I am also interested in making a pre-order for Infinity. I know that at the price of 549$ they include shipping.
    Do you know if custom charges are included as well?

    I'm pretty sure that I've read somewhere that they cover custom charges, but now I can't find it anywhere now.... Have they deleted it?
    Name:  Zrzut ekranu 2020-04-26 o 21.36.34.jpg
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    No you don't have to worry about taxes. That's why they added 50$ to the original 500$ shipping less price.

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    #6
    Quote Originally Posted by Kuba Hajto
    Name:  Zrzut ekranu 2020-04-26 o 21.36.34.jpg
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    No you don't have to worry about taxes. That's why they added 50$ to the original 500$ shipping less price.
    Great! Can you please give me the link where it is mentioned?

  7. Kuba Hajto is offline
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    #7
    Quote Originally Posted by Arkady
    Great! Can you please give me the link where it is mentioned?
    Kickstarter https://www.kickstarter.com/projects...joola-infinity

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    #8
    Two differences to consider:

    Joola robot is designed to be fixed at center end of table, like a Newgy. If you want to place it anywhere else you lose the catch net. Tennirobo is designed to sit on a tripod and be placed anywhere. For example so serves come from where a human would stand. Which is more important to you, convenience of the net, or ease of moving the robot, changing height, etc.

    Second is the random feature. Tennirobo works by setting the head position anywhere in a quadrilateral shape you draw on the screen. Extremely customizable. It also has simple random setting that draws a small rectangle around the current setting. Joola's may be similar or just as good, I haven't seen it. But having owned now four different brands of robots, I know randomizing is important to not get bored with it.

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  9. Kuba Hajto is offline
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    #9
    Quote Originally Posted by Brs
    Joola robot is designed to be fixed at center end of table, like a Newgy. If you want to place it anywhere else you lose the catch net.
    I would discuss (definitely not argue) about this. The robot itself can be easily placed on the edge. As you can see on the renders it's ball feeding wings will be contractible, unless Joola does stupid things, like linking those two wings together, one should be able to contract one wing and let the balls feed from one side only. I have made my own net from 10$ worth of fabric, so I guess making bottom extension wouldn't be to much. Especially considering that the other robot discussed here has no net whatsoever. (I also asked the question about off-center mounting on the indiegogo backers thread of Joola robot, I will update with whatever they respond)

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    #10
    I was looking at the comparison chart of Infinity with other competition robots, that Joola depicts in Kickstarter:
    Name:  infinity2.jpg
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    As stated, the spin that can be produced is topspin, underspin, no-spin, sidespin. So from what I can understand, it offers only 5 types of spin and CANNOT PRODUCE topspin combined with sidespin and CANNOT produce underspin combined with sidespin


    On the other hand, as stated in the Tenni Robo FAQ page https://tennirobo.com/faq/ :
    "The TenniRobo supports all possible kinds of ball’s spin: topspin, backspin, any sidespin, and no-spin. Even more – with our mobile app you can easily select the angle of this spin. Actually you are able to combine, for example, topspin with sidespin, or backspin with sidespin. You can do it just in one click!"



    I think that is a MAJOR difference between the two robots and a great disadvantage of Infinity.

    What troubles me is this: If the guy that produces Tenni Robo was able to put 3 wheels, how come Joola wasn't able to do so as well?

  11. Kuba Hajto is offline
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    #11
    Joola can produce side top spin. It just created top spin and rotates head.

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    #12
    Quote Originally Posted by Kuba Hajto
    Joola can produce side top spin. It just created top spin and rotates head.
    Yes, I can imagine what you are saying: By rotating the head, topspin and underspin can be combined with sidespin.However, it is not clearly stated in the chart and that is what troubles me.

    Since I cannot ask directly ask because I am not a backer (only backers ca post comments) can you please clarify that?

  13. Kuba Hajto is offline
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    #13
    Quote Originally Posted by Arkady
    Yes, I can imagine what you are saying: By rotating the head, topspin and underspin can be combined with sidespin.However, it is not clearly stated in the chart and that is what troubles me.

    Since I cannot ask directly ask because I am not a backer (only backers ca post comments) can you please clarify that?
    Ask Joola on Facebook. That way you will get reply quicker. At least I got response much quicker that way. I think there may be 2 different teams handling replies to facebook and to indiegogo, and my questions on indiegogo were not answered yet. If you don't have facebook account I can ask for you.

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    #14
    Quote Originally Posted by Kuba Hajto
    Ask Joola on Facebook. That way you will get reply quicker. At least I got response much quicker that way. I think there may be 2 different teams handling replies to facebook and to indiegogo, and my questions on indiegogo were not answered yet. If you don't have facebook account I can ask for you.
    I have facebook, but I don't really use it. But I will contact them.
    What is their policy about questions? Should i make a public comment or send private message?

  15. Kuba Hajto is offline
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    #15
    Quote Originally Posted by Arkady
    I have facebook, but I don't really use it. But I will contact them.
    What is their policy about questions? Should i make a public comment or send private message?
    I got rather quick response here: https://www.facebook.com/joolausa/

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    #16
    Quote Originally Posted by Kuba Hajto
    Joola can produce side top spin. It just created top spin and rotates head.
    ΄
    Another question that I have is this:
    Tenni Robo because it is placed on a tripod, you can move it around the table at different distances and angles. That is a great advantage.

    Infinity on the other hand is mounted on the center of the table and cannot be moved around. Are the side wings of the net removable?

    BUT: If the side wings are removable and one makes a custom made base to mount Infinity on, do you think that it will be possible to move it around at different distances and angles, just like Tenni Robo?

    Do you get what I mean?

  17. Kuba Hajto is offline
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    #17
    Quote Originally Posted by Arkady
    Infinity on the other hand is mounted on the center of the table and cannot be moved around. Are the side wings of the net removable?

    BUT: If the side wings are removable and one makes a custom made base to mount Infinity on, do you think that it will be possible to move it around at different distances and angles, just like Tenni Robo?
    Sure, why not. I will confirm this when I get my robot in December. The only thing that might be an issue is a software side of things, but that shouldn't be that hard to figure out (robot is calibrated to be in the center after all). I asked my question here https://www.indiegogo.com/projects/j...7828#/comments. I would expect the answer from engineers within a month. These are not easy questions to answer so I would expect they will take their time. The wings are 90% gonna be foldable, since the robot is supposed to be movable, and moving a Star Wars' Lambda Imperial space shuttle isn't the most comfortable thing to do...

    Edit: Found this graphic on Kickstarter, it strongly suggests that the wills will fold
    Name:  Zrzut ekranu 2020-04-24 o 10.13.03.jpg
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    Source: https://www.kickstarter.com/projects...joola-infinity
    Last edited by Kuba Hajto; 04-24-2020 at 08:13 AM.

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    #18
    Quote Originally Posted by Kuba Hajto
    Sure, why not. I will confirm this when I get my robot in December. The only thing that might be an issue is a software side of things, but that shouldn't be that hard to figure out (robot is calibrated to be in the center after all). I asked my question here https://www.indiegogo.com/projects/j...7828#/comments. I would expect the answer from engineers within a month. These are not easy questions to answer so I would expect they will take their time. The wings are 90% gonna be foldable, since the robot is supposed to be movable,
    Hmmm you've got a good point. If the software is designed based on the assumption that the robot is mounted ONLY on the center of the table, I think it will be too difficult -if not impossible- to redesign it, for moving around the robot at various angles and distances....

    If it is not too much trouble, please ask this at Indiegogo. It is a very technical questionand only the engineers of the project will be able to answer that. At facebook such a question will have no luck.
    By the way, I asked them on FB about the spins and I am awaiting their answer.

    Wings are FOLDABLE no question about that. The thing is if they are REMOVABLE.


    Quote Originally Posted by Kuba Hajto
    and moving a Star Wars' Lambda Imperial space shuttle isn't the most comfortable thing to do...
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  19. Kuba Hajto is offline
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    #19
    Quote Originally Posted by Arkady
    Wings are FOLDABLE no question about that. The thing is if they are REMOVABLE.
    Why do you want to remove it? Fold for me is enough. But if they intend to sell net as an accessory later. I would imagine that it will be removable. If you want to move the robot to serve from the left, just fold left wing. When it comes to how hard it is to force the software to behave when on right, I would have to have a robot and run the Bluetooth sniffer to look how commands they send looks or reverse engineer the application.

    PS: Asked the question on indiegogo.

    EDIT: I found this image, it suggests that wings shall be held together with bolts, so I wouldn't expect them to be easily detachable.
    Name:  Zrzut ekranu 2020-04-24 o 10.43.40.jpg
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    Last edited by Kuba Hajto; 04-24-2020 at 08:44 AM.

  20. Kuba Hajto is offline
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    #20
    Also this video answers you questions about an app and sidespin:
    https://v.kickstarter.com/1587890541..._h264_high.mp4

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