Dual Head Robot Reviews Y&T S27 + Oukei S-9

Great review, thanks a lot Rich215!

It makes sense that instead of making a single head more complicated, they go for 2 simpler and independent heads. This is probably the way most robots will go in future.

haggisv.....Thanks!   Yes, I think the way to go with making a robot do more of what we all want and need is to use 2 heads.  The problem with using only one head is the amount of changes the head has to make in regards to placement of landing spots in relationship to motor speeds and rotation angles.  It is a very complicated process to have one head make so many adjustments to throw differing spin, speed, and landing spots that are different on consecutive balls thrown. 


pushchop...Thanks as well!   As far as the robot making the vertical (head move up down for long short ball landing spots), some do that in different ways.  The Oukei robots do it by the deflector tunnel after the ball is shot out from the trowing wheels.  But you can not make micro adjustments at the control panel on the fly.  The Double Snakes robots on the other hand do this extremely well.  Both the FQJ-2 and FQJ-4 have the ability to adjust exact head vertical angle and rotation real time while in use.  Double Snakes by far has the best head controls from the control pad.  If they had programmable landing spots and programmable sequence ability.....with 2 heads......no other robot would touch it in my opinion.  But also the one slightly limiting factor is that the Double Snakes robots are "hanging robots".  This means you do not have the ability to move the robot back off the table for different types of shots like looping drills and such.  But you could make that work if you built some sort of stand to put the robot on.  That would be something I would do for sure if I decided to go with a Double Snakes robot.

The TW2700-07 and TW2700-08 both have the ability to make long short landing spots by button selections on the control pad.  The 07 only has 2 selections of landing depth, while the 08 has 8 possible landing depths.  So the only manual adjustment on the 07 and 08 at the head is the rotation angle setting. 

TT_62, thanks for your comments.

Ok...let me give you some answers that will help you further.

1. The Y&T S-27 controller is programmable basically with landing spots left to righ and amount of balls from each head before changing to the other. Also the other basic elements such as BPM, # of balls per sequence, and the various throwing motors settings. The pre-programmed sequences are various landing spot patterns. The random button basically just mixes up some of the pre-programmed sequences.

Once you set the rotation angle, top and bottom throwing wheel speeds separately, and the vertical angle (depth of landing spot), you can not change how each head throws the ball besides which spots left to right.


2. The Y&T S-27 cant change landing depth or spin type of a ball shot from either head, from ball to ball, but neither can the Oukei S-9. Yes your correct about setting one head for a short + short backspin shot from one head then what ever different shot from the other head.


The plus part about the Y&T S-27 robot is that you have full control of all four throwing wheels.  You can separate the speed and spin factor well.  The Oukei S-9 dual head robot in comparison has a problem or I should say..a negative aspect of not being able to control the top wheel speed from the bottom wheel speed independently from each other on both heads.  The spin amounts or offset of speeds between the top and bottom throwing wheels can not be changed.  The offset or spin amounts are programmed into the speed of balls shot. This is done in stepped amounts of 1 to 15 for topspin...and 1 to 15 for backspin shots.

I have a Oukei S9 right now for review/test purposes.  This is the first thing I noticed about both these 2 dual head robot. They are very different in how they work and what they can do.  The Y&T S-27 excels at making various spin and speed amounts on balls with the ability to control the speeds of top and bottom wheels separately. The Oukei S-9 robot excels in its ability to program sequence making, random sequences, and basic over all button pushing as it takes a while to understand it and set up shots and sequences. The Oukei S-9's complicated control panel wore me out and really seems too complicated for most peoples use. The Y&T S-27 is like all the other Y&T robots...very quick and easy to set shots and sequences up. Y&T excels in this area.

TT_64,  yes you can make a sequence like that with either of the dual head robots.  The difference is that the Oukei will allow you to make any of the balls you make for sequence come from either head you want.  On the Y&T, when you set the ball interval between the heads....it will set up like this:

Head A is set to medium speed and spin topspin.
Head B is set to medium spin medium speed backspin. 

You then select the amount of balls Head A will shoot before Head B shoots balls. 

So if you want 1 ball to come from Head A then the next ball to come from Head B, you set each head to throw 1 ball.  

Then any amount of shots (quantity of balls per sequence), you simply set with the landing spot buttons. 

So after you punch in the amount and 1-11 landing spot buttons...the sequence  will follow as......first ball comes from Head A, second ball comes from Head B, third ball comes from Head A, fourth ball comes from Head B, and so on.....back and forth 1 ball intervals between the heads.  

The Oukei robot has the ability to tell ball by ball which head you want any of the balls to come from, so you can have mixed amounts coming from the heads in a programmed sequence. 

OK..... I finally have the Oukei dual head review finished. Sorry it took so long as I have been extremely busy with work lately. 

There are several comparisons to the Y&T dual head noted in it as well.  I did not explain everything on the control pad with the more advanced programmable functions because it I would of had to almost re-wrote the manual.  Since the manual is so easy to find on the internet, you can find all the other details of the control pad I left out in the review.  

TT_64   Thanks for your appreciation. 

Now the decision of choosing a robot on the upper end is becoming much harder to make these days, with what is available to us.

There is a industry show in China coming up in the next month or so. I will let everyone know if anything new pops up with robot designs. 

bump

Rich215 wrote: Sollom....good to hear you have the robot now!You say the head is touching or limited in movement by the 2 net support bars.....but does the robot still hit the edged of the table on the outside settings of the landing spot buttons?�� You can bend those metal support bars a little to make sure the head moves all the way right to left it actually needs too.� You will find that you can rotate the head by your hands when the robot is not on.� The amount of movement is usually greater than what it needs to move.� I only noticed one of the support bars being too close to the head when it moved all the way to one side.� Just a little strong arm bending of the support took that problem away.� As for balls not hitting the same depth location.....make sure you clean off the balls of the factory dust before use. How much of a difference are you talking about being not the same depth?� Most robots have a small inconsistent variable for exact landing spots from ball to ball.� But this should not be a large difference, maybe few inches at most. And also make sure you wipe off the rubber throwing wheels too.� Simple cloth with warm water on it does the trick.�

I think it can reach the end of the table while it touches the bars, but it makes a annoying noise that I believe maybe creating the inconsistency. probably it is the uncleaned balls that you mentioned, because it doesn't happen with donic coach balls that I got for a while..also not to mention the quality of the Y&T balls, I'm getting a new bucket of donic coach balls soon though.

can I know how to receive 1 ball to location 4 and 1 ball to location 11 with topspin? using two heads seems not to give me the balls where I want, sometimes it gives me balls as far as locations 1 to 4.

Rich215 wrote: Sallom89 wrote: � I think it can reach the end of the table while it touches the bars, but it makes a annoying noise that I believe maybe creating the inconsistency. probably it is the uncleaned balls that you mentioned, because it doesn't happen with donic coach balls that I got for a while..also not to mention the quality of the Y&T balls, I'm getting a new bucket of donic coach balls soon though. can I know how to receive 1 ball to location 4 and 1 ball to location 11 with topspin? using two heads seems not to give me the balls where I want, sometimes it gives me balls as far as locations 1 to 4. If the head is hitting the bars and making a sound, then yes go ahead and bend the bars untill the head does not touch them.� You can bend the bars twords� the outside of the net, or even alittle twords the back of the net.� What ever to make the head not touch them when it is full left or right oscillation. As far as getting the balls to hit an exact spot on the table that is equal to the landing spot buttons 1 thru 11....the S-27 will not be exact in hitting those spots� because there are 2 heads and the heads are mounted slightly outward from each other. So if you want say Head 1 to hit spot #4 area (mid table but slightly closer to the center line),� you will have to actually use landing spot #5.� You can get an idea of the actual landing spot on the table from each head when you set each head to hit landing spot #6 (center line).� You will notice that the balls from both heads will hit several inches off the table center line.� So you will have to compensate this buy actually using a landing spot button that is is something like #7 or #8� from Head 1 to hit close to the center line.� Then the opposite for Head 2, use button #5, or #4� to get the ball close to the center line. One of the reasons for this is because of the way the heads are mounted.� The slight outward set of the heads allows for the spin rotations to be full 90 degrees more easily.� This way you can turn each head farther past say 45 degrees from each other depending on the vertical angle settings of each head.� This is also why they had to use shorter throwing wheel motors, the need for distance between the heads for more rotation ability of the heads.For balls,� I use mainly DHS or Double Fish 3 star balls in my robot use. �

Thanks a lot my friend!! appreciate it!!

Imago wrote: How much do they weigh packed? How back away from the table you can put an Oukei S9 without removing the collecting net. And also, can you put it to one side?

Imago.....size and weights.

Oukei S9 Package
24.9 kg
99 x 48 x 56 cm.

Y&T S-27
28.5 kg
109 x 46 x 58 cm.

Most all robot's catch nets are held on to the robot body.  Only the side nets are actually attached to the table and can be slightly adjusted or removed but still have the main catch net function when you move the robot around.  The only exception to this is the Newstar robot where it is not even an issue what so ever.

You can move any floor standing robot anywhere you want from the table end.  But you will have to either totally remove the side net ends from the attachment by the table net if you are moving the robot to the side. So if you want to have the robot throw from a corner of the table end, you will just rely on the main catch net on the robot without the side nets.

If you only move the robot straight back off the center-line position of the table, you can adjust the side nets (if they have separate posts to attach to table) to move back with the robot.  The Oukei S9 robot uses a velcro and nylon strap to hold the side net ends to the main net frame on the table.  So you would have to come up with an extended strap to keep the side nets on as you move the robot straight back off the table. 

The Y&T robots all have the ability to separately set the bottom wheel speed from the top wheel speed.  The Oukei S9 has programmed in the different speed settings for both wheels in steps or stages of difference controlled by one setting.  So this is why there are more degrees/steps/stages of setting on the Oukei robot.

The Oukei robots are extremely sold in build quality and electrical programming.  They are the best for build quality by far that I have seen.  I have never heard of any Oukei that needed to be fixed ever!

You need a one wheel head.

Rich, are there any new two-head Oukei models to be expected in the near future?

Can Y&T S27 produce arbitrary speed no-spin balls ? Or at least close to no spin?

Also, can it be used to simulate high balls as well?

Thanks a lot!

I still do not understand the advantage of the second head for S9. The one head 8B does everything the two heads of S9 can do. Actually it doesn't matter wherefrom comes the next ball - from the same head or from the second head. The deflector is so agile that makes a second head unnecessary. The only thing you can do with the second head is to set different side spin (angle).

Agree, this IS the perfect robot

Edited by Imago - 11/03/2012 at 4:53am