Break Speed Radar Gun?

CocoboloCowboy

CocoboloCowboy

Cowboys are my hero's
Silver Member
When I was up at the BCA in May there was a vendor doing a BREAK SPEED competition, he was used some sort of Radar Device?

I did a archive search to see you make the Break Speed Radar Gun, came up blank.

Anyone know, who makes the spped tracing guns, and how to contact them?
 
Using a radar gun can be inconvenient to carry and you may not have it when you need it.

This thread explains how to measure the break speed using sound, but it can also be inconvenient to have a notebook computer with you.

The convenient solution I found is using my pocket PC cell phone. I always have it with me.

I run Virtins Pocket Oscilloscope to measure the time between the sound from hitting the cue ball and the sound of the cue ball hitting the rack. The software uses the built in microphone in my cell phone as the channel 1 input. It measures to the microsecond and my cell phone samples at 96 kHz.

I input the time in into an Excel spreadsheet (also on my phone) to calculate the speed in miles per hour. The spreadsheet is setup for the four typical table sizes and assumes the distance between the base of the cue ball and the base of the head ball is 1/2 the length of the table (head string to foot string). The spreadsheet can be easily modified to support any starting position of the cue ball. I don't want to have to carry a tape measure, so I simply fix the starting position.
 
Thanks for the replies.
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Table Speed

Some of you might also be interested in a simple pocket PC application I wrote to measure the table speed based on a calculation of the effective slope by Bob Jewett. He describes the measurement and calculation in his article Friction: Friend And Foe from in the April 1995 issue of Billiard Digest.

Copy the cab file to your pocket PC and then double click on it to install.

Select the table size. Shoot a lag shot and tap Start when the ball hits the foot cushion. Tap Stop when the ball stops. Measure the distance between the edge of the ball and the cushion. Enter that in the Distance text box and it will calculate the 'Speed' of the table. Clicking Add calculates the average of the speeds from multiple shots. Reset simply clears the results.
 
Radar guns are meant to be used at substantial distances.

Using one in the close proximity of humanoids, may be injurious to their health.
 
I recall an old thread about radar guns and it seemed the flourescent lights used for most pool table lights interfered with the accuracy of the radar gun. Perhaps there is a newer version?
 
CocoboloCowboy said:
I did a archive search to see you make the Break Speed Radar Gun, came up blank.

Anyone know, who makes the spped tracing guns, and how to contact them?
Click to expand...
Redo your search with "Radar gun" in the Title ONLY. There was a long thread on this with lots of info on radar guns.

Oh, ok. I'll do it for you. ;)

LONG THREAD

ANOTHER THREAD

I have a Bushnell and it works just fine. And it was cheap.

-td
 
Mark Avlon said:
Using a radar gun can be inconvenient to carry and you may not have it when you need it.

This thread explains how to measure the break speed using sound, but it can also be inconvenient to have a notebook computer with you.

The convenient solution I found is using my pocket PC cell phone. I always have it with me.

I run Virtins Pocket Oscilloscope to measure the time between the sound from hitting the cue ball and the sound of the cue ball hitting the rack. The software uses the built in microphone in my cell phone as the channel 1 input. It measures to the microsecond and my cell phone samples at 96 kHz.

I input the time in into an Excel spreadsheet (also on my phone) to calculate the speed in miles per hour. The spreadsheet is setup for the four typical table sizes and assumes the distance between the base of the cue ball and the base of the head ball is 1/2 the length of the table (head string to foot string). The spreadsheet can be easily modified to support any starting position of the cue ball. I don't want to have to carry a tape measure, so I simply fix the starting position.
Click to expand...

You've given me an idea. I have a shooting timer that measures down to .01 seconds, and reacts to sounds, gunshots, and I hope smashed racks.

I will see if I can set it senstive enough to pick up both sounds, and then it should just be a matter of dropping the "split" or time between shots into your spread sheet.

It won't be as exact, but I tried a couple of rough numbers, .14, .15 and .16 and it fed out believable speeds.

I'll let you know if I can make it work.
 
This is a funny thread...

1. Started in 2008 and some discussion on radar guns. Then we see some of the origins and links on using sound instead of radar to calculate speed.

2. Thread dies a normal death

3. 2 years later its resurrected to advertise the break speed app by the app's creator. No replies.

4. Another 2 years later its resurrected again to advertise a new radar gun, buy the radar gun's creator.
 
iusedtoberich said:
This is a funny thread...

1. Started in 2008 and some discussion on radar guns. Then we see some of the origins and links on using sound instead of radar to calculate speed.

2. Thread dies a normal death

3. 2 years later its resurrected to advertise the break speed app by the app's creator. No replies.

4. Another 2 years later its resurrected again to advertise a new radar gun, buy the radar gun's creator.
Click to expand...
At least they're recycling.

pj
chgo
 
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