Irvin

04-28-2010, 07:19 AM

Ever want to match your own rackets but don't have $1,500 to $5,000 to shell out for the equipment? Those machines measure the balance point relative to the head of the racket and a point 10 cm from the butt cap. Why 10 cm? Because that is the average point where the racket pivots in your hand. That is the point where center of the average player's index finger knuckle hits the racket. Well I am not average and I bet you aren't either.

Long story short here is the device or cradle made with two home depot angle brackets and a scrap piece of wood. I placed the brackets so one is higher than the other and the left one is 10 cm from the inside of the right one.

http://i422.photobucket.com/albums/pp304/Irvin44_2008/HPIM29371.jpg

I have a postal scale and first I get the overall weight of the racket - 343 grams (12.1 ounces.) I used grams because I think the scale is more accurate that way.

Now I put the cradle I made on the scale and zero the scale. Then I put a spacer under the head of the racket to hold the racket level and put the racket in the cradle to measure the weight - 215 grams. See that small line to the right of the balance point on the angle bracket? That is where my first knuckle hits. I could move the balance point to there to match the racket to me.

http://i422.photobucket.com/albums/pp304/Irvin44_2008/HPIM29381.jpg

Then I take the cradle off the scale and zero the scale again. Place the cradle out in front of the scale and place the butt of the racket in the cradle and the tip on the scale to measure the head weight - 128 grams.

http://i422.photobucket.com/albums/pp304/Irvin44_2008/HPIM29391.jpg

So my racket is 343-215-128 grams (total weight - grip weight - head weight) in these three measurements. Get all three points to match up in your rackets and they will be matched. Space the angle brackets so they match up with the distance of the center of your index finger knuckle to you and your rackets will be matched to you. Modify the cradle so you can change the distance of the angle brackets and you can use this one device to match rackets for anyone.

Just for the fun of it I used some calculation to try to figure out the distance from the cradle balance point to the Center of the racket balance point in the cradle and measured that distance in cm, squared the distance and multiplied that by the kg (0.343 kg.) I forgot exactly what the result was but I took the racket to PGA superstore and measured the RDC on their Babolat machine. I was 4 off - darn it. But I don't think you need all that.

What do you guys think Love it or leave it? Come on guys over 100 lookers and only three voters don't forget to vote up top I would really like to know what you think.

Irvin

Long story short here is the device or cradle made with two home depot angle brackets and a scrap piece of wood. I placed the brackets so one is higher than the other and the left one is 10 cm from the inside of the right one.

http://i422.photobucket.com/albums/pp304/Irvin44_2008/HPIM29371.jpg

I have a postal scale and first I get the overall weight of the racket - 343 grams (12.1 ounces.) I used grams because I think the scale is more accurate that way.

Now I put the cradle I made on the scale and zero the scale. Then I put a spacer under the head of the racket to hold the racket level and put the racket in the cradle to measure the weight - 215 grams. See that small line to the right of the balance point on the angle bracket? That is where my first knuckle hits. I could move the balance point to there to match the racket to me.

http://i422.photobucket.com/albums/pp304/Irvin44_2008/HPIM29381.jpg

Then I take the cradle off the scale and zero the scale again. Place the cradle out in front of the scale and place the butt of the racket in the cradle and the tip on the scale to measure the head weight - 128 grams.

http://i422.photobucket.com/albums/pp304/Irvin44_2008/HPIM29391.jpg

So my racket is 343-215-128 grams (total weight - grip weight - head weight) in these three measurements. Get all three points to match up in your rackets and they will be matched. Space the angle brackets so they match up with the distance of the center of your index finger knuckle to you and your rackets will be matched to you. Modify the cradle so you can change the distance of the angle brackets and you can use this one device to match rackets for anyone.

Just for the fun of it I used some calculation to try to figure out the distance from the cradle balance point to the Center of the racket balance point in the cradle and measured that distance in cm, squared the distance and multiplied that by the kg (0.343 kg.) I forgot exactly what the result was but I took the racket to PGA superstore and measured the RDC on their Babolat machine. I was 4 off - darn it. But I don't think you need all that.

What do you guys think Love it or leave it? Come on guys over 100 lookers and only three voters don't forget to vote up top I would really like to know what you think.

Irvin