[Farmall] LASER DISTANCE METER_TRACTOR PULLING

[Bill "Bear" Hood]

We have the Agtronics sled monitor on our sled.  It measures pr senses the number of teeth on a sprocket as the sled moves forward.  Once calabrated to the sled it is accurate to 1/2" in 300 ft consistantly.  The option we chose is that it automaticly relays the information to a remote readout at the announcers booth.  It stores all the pulls in memory until erased.  Ours is a self propelled sled and the monitor also has a readout in the cab of the sled.  

It can be set to monitor speed and blow a horn or alarm at any given maximum speed.  You do not have to stop the sled at a given point as the monitor sets to zero when you reset for the next pull. It can read in fractions of a foot or in decimals or feet, inches and decimals of an inch.  Ours is 4 seasons old and I installed a similiar unit on a neighboring club's sled last year and it too is accurate and so easy to operate.  

We investigated the laser measurement and have a engineer/surveyor in the club and there is a problem when the sled does not travel in a straight line.   We put his laser on the sled and had a target at the start point and was not satisfied. The sled monitor was also cheaper that the laser unit we tried.

Bear  
--- farmallgray at aol.com wrote:

From: farmallgray at aol.com
To: farmall at lists.antique-tractor.com
Subject: Re: [Farmall] LASER DISTANCE METER_TRACTOR PULLING
Date: Fri, 27 Jun 2008 12:23:12 -0400

Around here we just have a tape measure on the sled and measure how far the box goes up. It is cheap and simple and easy to do.
It doesn't matter how crooked the sled goes up the track, it will measure accuratley for everyone. I have also seen sleds with surveyors wheels mounted to run on the sled tire. The lasers must be for the pulling clubs with big bucks.







Todd Markle
Spring Mills, Pa.


-----Original Message-----
From: Frank DeWitt <Frank at lbpinc.com>
To: farmall at lists.antique-tractor.com
Sent: Fri, 27 Jun 2008 10:56 am
Subject: [Farmall] LASER DISTANCE METER_TRACTOR PULLING



One thing to keep in mind is that a Laser Distance Meter measures in 
a straight line.

If the meter is at a fixed location, and the sled is pulled 100 ft 
straight down the track you will read 100 ft.
If the next pull goes 100 ft down the track and drifts 10 ft to the 
side then you will read 100.498

Now the guy who drifted did pull further, but do you want to count 
the part of his pull that was not in the right direction?

I am not a puller, so I don't know the correct answer to this.

Frank

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