Visualizing the Trajectory Difference: Butterfly Zyre 03 vs. Dignics 09c

[palguay]

In this video, we tracked the specific arc and landing zones of the Zyre 03 compared to the Dignics 09c (same blade, same stroke). The visual markings really highlight how the flight path changes.

For those who have played with Zyre 03:
Does this visual match the "feeling" you get at the table? I’m curious if you find the deeper trajectory harder to control compared to the safety arc of the 09c.

 

[kapahoo]

Interesting! Looks like trajectory from the robot is different before the ball hits the racket. Wouldn't that impact the trajectories?

 

[Gozo Zyreruna]

In this video, we tracked the specific arc and landing zones of the Zyre 03 compared to the Dignics 09c (same blade, same stroke). The visual markings really highlight how the flight path changes.

For those who have played with Zyre 03:
Does this visual match the "feeling" you get at the table? I’m curious if you find the deeper trajectory harder to control compared to the safety arc of the 09c.

I am a user of Zyre03 on FH ( recent, about one mth's experience )
My comments as follows:
1. Yes, the FH topspin lands deeper.
2. The ball spits out after landing.
Point 1 & 2 is not based on my feeling but rather was told by spectator who watched my game play.

 

[Arkady]

In this video, we tracked the specific arc and landing zones of the Zyre 03 compared to the Dignics 09c (same blade, same stroke). The visual markings really highlight how the flight path changes.

For those who have played with Zyre 03:
Does this visual match the "feeling" you get at the table? I’m curious if you find the deeper trajectory harder to control compared to the safety arc of the 09c.

The experiment is flawed:
The trajectories/arcs of the 2 balls as they come out of the robot are different, so the trajectories/arcs of the returned balls are also different.
The experiment would be valid if the robot produced 2 exact same trajectory balls and then examine how the ball is returned from each rubber.

 

[Grumms]

That was already advertized a long time ago :

 

[rbtitco]

I hit with Zyre and it def lands farther back than 09c. Its a fast, spinny and unforgiving rubber, the arc is lower too, so 09c is "safer" to play imo. What buttefly said and what your experiment showed is my experience.

 

[Tyce]

Interesting! Looks like trajectory from the robot is different before the ball hits the racket. Wouldn't that impact the trajectories?

The experiment is flawed:
The trajectories/arcs of the 2 balls as they come out of the robot are different, so the trajectories/arcs of the returned balls are also different.
The experiment would be valid if the robot produced 2 exact same trajectory balls and then examine how the ball is returned from each rubber.

This is the exact problem with all of the Pongfox videos. The assumption is an equal comparison, but the robot simply isn't producing the same ball every time.
What I do applaud is that they actually show that the incoming balls are different. But the conclusion cannot be drawn this way.

 

[palguay]

This is the exact problem with all of the Pongfox videos. The assumption is an equal comparison, but the robot simply isn't producing the same ball every time.
What I do applaud is that they actually show that the incoming balls are different. But the conclusion cannot be drawn this way.

to be fair no one has attempted this before, collecting data in this scenario is messy, each video I change one small thing. it might take some time but we are confident that the process will get better over time, at this point what is available is someone hitting a ball and claiming it is fast and no one seems to be questioning that

 

[palguay]

The experiment is flawed:
The trajectories/arcs of the 2 balls as they come out of the robot are different, so the trajectories/arcs of the returned balls are also different.
The experiment would be valid if the robot produced 2 exact same trajectory balls and then examine how the ball is returned from each rubber.

ok, what do you think of the earlier video where we put the numbers, I am trying to understand if those make sense to you or even that would be flawed ?

this is something not done earlier so we know that we are going to fail a lot before we get to the meaningful numbers.

spin and speed numbers

 

[Arkady]

ok, what do you think of the earlier video where we put the numbers, I am trying to understand if those make sense to you or even that would be flawed ?

this is something not done earlier so we know that we are going to fail a lot before we get to the meaningful numbers.

spin and speed numbers

I haven't seen the earlier video you mention, just this one.

 

[Lazer]

In this video, we tracked the specific arc and landing zones of the Zyre 03 compared to the Dignics 09c (same blade, same stroke). The visual markings really highlight how the flight path changes.

For those who have played with Zyre 03:
Does this visual match the "feeling" you get at the table? I’m curious if you find the deeper trajectory harder to control compared to the safety arc of the 09c.

It would be better to combine the average trajectory from a number of attempts since the robot doesn't throw very evenly...

Cheers
L-zr

 

[kapahoo]

to be fair no one has attempted this before, collecting data in this scenario is messy, each video I change one small thing. it might take some time but we are confident that the process will get better over time, at this point what is available is someone hitting a ball and claiming it is fast and no one seems to be questioning that

I think it is a great attempt and a very good and easy to understand illustration.
An easy (?) fix would be to try so many times that you got the same, or at least a very similar trajectory from the robot. Or, as Lazer says, many tries and some sort of average. But that would be harder to show in a video.