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Anyone else have to align the unit to the right to get the alignment dots to line up?
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Last edited by Tbernardmd; 04-09-2015, 02:55 AM. -
It's in the session settings screen:
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Does the height of the ball and skytrak have to be the same? Like could the ball be 2" off the ground and the Skytrak be 1" or 2"?
I am noticing a massive left miss hits with my irons. Almost 60 yards left with a 7 iron which is pretty excessive. When I try to chip a shot to the right the ball misses the impact screen and the shot goes straight. I can't seem to get this thing alignedComment
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Assuming that the unit is leveled and with the error you are experiencing I don't mean perfectly leveled but even somewhat leveled like when you place it on what ever type of surface.
Then this sounds like the accelerometer is way off.
If you think about it like this and assuming there is no accelerometer to compensate the level mismatch.
The unit is tilted back a lot. (e.g away from you) The camera plane is then also tilted back the same amount and will produce higher horizontal LA error the higher the vertical launch angle is.
That explains why the shot that goes way right registers as straight. You basically need to shoot it so it follows the cam plane.
With an accelerometer feeding the host with wrong inclination values the algorithm will treat the data as if the unit is not leveled even if it is.
The HLA is the one showing the biggest error but in fact all your values incl. spin and VLA will be wrong. So what you need to fix this is the next iOS app version that allows for accelerometer calibration. Although I would say that the error you describe is a bit high and would indicate that the accelerometer is not only badly calibrated but flat out broken. But that is difficult to say without some means to monitor the accelerometer value while performing some tests.Last edited by davray666; 09-01-2015, 09:29 AM.Comment
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For some more info on this topic go to
and read post #20 and a few after that.
In my case I have a bias towards the right side for high VLA shots and have had that from day 1. That is why I have asked for a function where the accelerometer can be disabled so I can align the unit my self.
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masking tape works as well or blue painters tape
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Tried to align the Skytrak again. Still not sure how I can tell if my alignment dots are aligned correctly unless I had a laser level. Again today hit over 50 7 iron shots all left. 30-60 yards left. Also had a couple shots with 110 mph clubbhead speed my a 7 iron. Not sure why I am having so many problems. I found if I rotate the device significantly to the right the ball would draw. Though the alignment dots were not lined up correctly. I am worried I will start messing up my swing because of incorrect results on the skytrakLast edited by ryanoneill1; 09-02-2015, 04:41 AM.Comment
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Did you put the level on the skytrak side to side (not just front to back)? Also, try deleting the app and re-installing.Comment
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The error the unit produces is so bad that if this is an alignment issue then you are way off. So much that even a half blind person would see it without any tools.
Have you called support and what did they say? I think the unit is broken, return it while you still can.
I have seen excessive ball and club head speeds, but only when I mess around with the driver and try to start the ball way left like 10 - 15 degrees and curve it back to target.
Here is a screen dump of one of those messing around sessions. For the last shot, ball speed was probably more like 150MPH and 12 degrees left, so it is a miss read. But those type of miss reads are rare when you play normally and try to hit the ball straight.
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Did you delete and re-install the app? Do a hard reset on the ST (small pin hole on the bottom).
This has fixed a few peoples issues with club distances and mis-reads. Also, connect via direct mode and not network.
Let us know.Comment
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One other thing to remember is the CHS is not a measured parameter. It is estimated. So I would not put much faith in the CHS readings your getting. As davray666 indicated I think a lot of alignment issues will be solved with the next update. I have a beta ap that lets me see the alignment and when my level says it's level the ap says not. On the SDK interface for TGC if my box is so far out of level the SDK tells me so when I run it. I think many problems will be solved with the next update. Hang in there guys good things are just around the corner.Protee
CST Time zoneComment
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I think I might have this alignment problem too. Not sure if it's the lasers that are wrong, the body of the unit or the cameras inside, either way it's not good and is the most basic errors of quality control you can get. I'll get a level and do some tests and see what happens.Comment
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Hey guys, a lot of those crazy readings (like davrays picture) are more than likely due to the software grabbing onto something like a white headed driver, shoe, hosel, etc. If you have a faster than average swing speed, you could try positioning the ball an inch to the right of the laser dot and see if that works. ryanoneill1, I think you've been in touch via fb, but this issue sounds hardware related (like maybe something damaged in shipping?) However, I have yet to see an actual hardware failure...can you confirm 2 things for me?
1) Problem is due to side ANGLE to the left, not hook spin?
2) You are hitting parallel to the unit, not aiming to the center of the net with the unit on one side?Comment
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Based on me being a Right hander, my left being towards my garage door, lasers pointing left would be left as you look at the garage door.Originally posted by Wev View Post
Checked the unit, it appears my "level" concrete floor isn't actually level (I think my garage must be on an incline so if it flooded the water would flow outwards, which would make sense). On checking the mat and unit with a spirit level it looks like it may have been pointing down range a couple of degrees, as looking towards the garage door (the direction of hit). This in turn made the lasers point left, I've levelled it out and now it's dead straight.
Problem I'm having now is it's not reading the better shots at higher ballspeeds. I used sit the ball back (to my right and towards my right foot, so it's diagonally away form the laser) but this doesn't work as often. Looking at the post above I might change from being diagonal to just right of the laser dot as I look at it from my stance. My launch angles have gone up too, but that may be me messing with my swing.Comment
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If "the better shots at higher ballspeeds" is a driver shot and you use a peg. Then you can't have the ball behind the laser dot, assuming the target is in front of the laser dot. (I know Seth said right of the laser but I don't want to discriminate the lefties
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Read post #10 in the Technical FAQ thread. That explains why.
You also don't want to have the ball positioned closer to you and away from the unit farther than the laser dot. The farther away the smaller the ball will appear in the camera view and the readings will be of lower quality and less accuracy. Especially if it's a high pull shot, then it gets even worse because I suspect the light is not as bright over there in the corner as if it's a straight shot.
Now just because of that don't start placing the ball closer to the unit vs. the laser dot. That will create other problems. I can explain why some other time if anybody is interested.Comment
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