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Question: How would you compare Prakttismate robots with other robots?
Answer: We do not know of any other robot that is able to throw real loops, no spin, top spin or any other spin and have so many additional features such as being able to be a left handed player or a right handed player. The height adjustability is also a very desirable feature.
Question: How can the price of Prakttismate be so low compared to less capable robots.
Answer: We are able to keep the prices this low, because we only sell the robots on the Internet. This way, there is no middle dealer. This saves you quite a bit.
For example, if we had a robot for $900, it would probably cost $1400 if you bought it through a dealer.
Question: How do you define "loop"?
Answer: A loop is a ball that has "enhanced" topspin. Any ball that is driven at its top and allowed to travel through the air will have top spin on it. Moreover, the spin and speed product is approximately a constant. In other words, if the ball is driven to be faster, then the spin will increase proportionately. The converse is true. Therefore, to get no spin, the speed of the ball would have to be zero. Can balls be served at zero speed? I think not. In the case of a loop, the speed and spin are not directly proportional to each other. This means that you can have a ball with a lot of spin, but it is moving very slowly. If you increase the speed of this ball to match the speed of the top spin ball previously mentioned, you will find that you have a lot more spin and this is a loop.
All robots can throw top spin. Prakttismate is the only robot capable of
throwing slow loops.
Question: How much time does it take to set up PK1 net?
Answer: It takes about four minutes. The net comes pre-assembled. It is quite easy to do.
Question: How do I set up a serve on the PK robots?
Answer: There are two ways to set up a serve. The first way is to set the height so that it is near, or at maximum. Tilt the head down to an angle at which the balls will hit the robot side of the table first. Set your spin and speed so that the balls will hit the robot side of the table and the player's side of the table.
Another way to get serves, is to set the height at any position and tilt the head up. Let the balls come out very slowly and fall on the robot side of the table, bounce over the net and hit the player's side of the table.
Question. How can I be sure that I will receive my robot and you won't take my money?
Answer. Prakttismate is a company registered with the State of Connecticut, USA. If we just took your money without delivering your robot, we would have to answer to the State of Connecticut if you contacted them.
Question. I was looking at your robot on Youtube and someone who
is, or was your customer is saying that PK1 performed poorly because it only
gave 38 MPH maximum ball speed. Is this true?
Answer. We did not use a radar gun to measure the maximum
speed of the PK1. We estimated the maximum speed to be around 90MPH based on
the size of the wheels and the RPMs of the motors. In any case, if this customer
is trying to say that PK1 can only yield a maximum speed of 38 MPH, then he
is also saying that the other robots cannot possibly have a maximum speed of
more than around 25MPH. We can say this, because we know that there is no
other robot with wheels as large as ours. The speed of balls coming from a
robot, is a product of wheel diameter and motor RPMs. The Sitco robot
he is comparing to PK1 has a single wheel that is about the size of the
smaller PK1 wheel. If you do the math and physics, you will realize that a
single wheel robot will only be half the speed of a two wheel robot,
assuming that motor speeds are about the same and wheel sizes are about the
same.
How can we tell that the settings shown in his video are at maximum
for PK1? Of course we can't, because the PK1 knobs can be turned all the way
to what seems to be maximum, but the potentiometers have not been allowed to
go to their maximum positions.
We cannot understand why anyone would want a faster robot than PK1, but
of course, everyone is entitled to his opinion whether or not that opinion
is different from the vast majority of opinions
We suggest that you ask other PK1 customers to compare the speed of PK1
to other robots.
Question. Why would I buy a Prakttismate robot instead of a
comparable two-wheel robot that offers programmability?
Answer. The programmable robots that are priced about the same as
PK1 are programmable only in the sense that the Oscillation or sweep feature
can be programmed to cause balls to land on selected areas of the table in a
programmed sequence. PK1 does not offer this because we will not sacrifice
the quality of ball delivery by employing a non-oscillating head. A
deflector is usually what is employed on the other robots mentioned, to
provide ball movement for oscillation. This adds side spin to an intended no
spin, for example, whenever the sweep is turned on. PK1 allows you to adjust
sweep width and ball placement is random during oscillation. The head is
made to oscillate rather than employing a deflector.
PK1 is the only robot that recycles from any position along the table
end. Think of the advantage this is, when for example, you want to receive
side spin serves to your forehand from the corner of the table and the robot
is still recycling. No other robot can do that.
PK1 is the only robot capable of providing a true slow loop. It is able
to produce very spinny balls that can be difficult to block at first when
you've just started to learn blocking against it. All other robots can
produce only top spin or under spin that is proportional to the speed of the
wheel that is throwing the ball at any given time. This means that they
become similar to single wheel robots except that if the other throwing
wheel is also turned on, the amount of spin can be reduced. Their spin
cannot be increased beyond that produced by their single-wheel operation.
Question(from us). We have had the technology to make a robot with
programmable landing zones like some other robots, for some time now, but
are reluctant to do it for the following reasons: (1) If we made it, the
head would have to move into position each time there is a new position
selection and it would have to stop each time. We think that this would be
detrimental to the gear motor used to make the head move, because the head
is too heavy. This would probably cause the gears in the motor to wear
prematurely. (2) We do not intend to use a light channel to deflect the
balls since this adds side spin on oscillation.
What is your experience with these two possible methods of oscillation?
Do the gear motors last?
Question. (from us) What do you think about being able to set your
oscillation width and area from the remote control? The balls would fall
randomly in the selected area. How do you feel about that?
To respond to the above two questions, please use our Contact
Us form or email us at answers@prakttismate.com
If you have any questions, please e-mail answers@prakttismate.com and we will try to answer them in this FAQ.
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