Thursday, November 26, 2009

250.000 views!

Just passed the quarter million view mark. Fantastic! Three more months to go before my first video will be online for a full year. Let's see how long it will take to get to 500.000!

Sunday, November 22, 2009

"W"-Slingshots: Enhanced, new video

The "W" is a very promising design concept. It has been further enhanced and is now in its thirsd generation. The modifications allow very quick band change, also between flat and tubular rubber, plus a laser can be attached within seconds, too.

Here:


http://www.youtube.com/watch?v=6BcHJMgzhHk

Two slingshots made by famous shooters

Hello,

a few months ago, Baumstamm (a fellow slingshooter from Germany) sent me a huge parcel with lots of stuff, including a beautiul wooden slingshot made out of multiplex wood. I put on the thinnest flat band on the market, Thera Band Tan, with 8 layers per side.

Last week, I got a parcel from Jaybird, a well known US shooter. He made a wonderful wooden slingshot (ergo shooter) just for my hands, and it turned out great.

I made a video about both slingshots, here:


http://www.youtube.com/watch?v=9ePBqzm_Gao

Greetings, Jörg
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Sunday, November 15, 2009

Youtube views


Of course, like most film makers, I do follow my view counts often and eagerly.

Here is the latest "fever curve"... I am quite happy.

100% stainless steel, self centering, 80 Joules Power!



Made another slingshot today (of course), further enhancing the "W" design once given to me by Bill Herriman.

Slightly smaller, nicer joints, stainless steel rotating handle, and flat bands made out of Thera Band Blue!

Great material. I hit 67 meters per second with the .75 lead ball, that is almost 81 Joules!

The two-pivot-design allow very flat forks, just flat enough to let the pouch pass. Hits on the hand are not possible with this design, because of the self centering.

Here is a video:

http://www.youtube.com/watch?v=TkRQkwYJsvQ

Saturday, November 14, 2009

Are thinner bands more powerful?


As you may know. my slingshots are much, much more powerful than the ones (most of us) used as a kid.

The main reason is the far better rubber we can use today, no longer are we limited to inner tubes and surgical tubing.

I have used the Thera Band Gold flat bands so far, which is the thickest (but still thin) stuff you can get.

Recently, a fellow slingshooter in a German forum posted that multiple layers of thin flat bands are faster than the same amount of rubber in thicker material.

The eternal hunt for power goes on! A great new frontier.

I have bought Thera Band Black, which is a lot thinner than Thera Band Gold. The manufacturer says the draw force is 0.43 in comparison with Thera Band Gold.

So I converted my favorite Gold setup (9cm * 6 cm * 20 cm) to 21 cm * 7 cm * 20 cm of Black. Have to use two layers as the roll is only 14 cm wide. It is true, same resistance.

Compared to the Thera Tube Black, the flat band has the same draw force in 14 cm width, so compared to Thera Tube Black my band set is 1.25 times harder to draw out. That works.

OK here is the result.

.75 l = 19 mm lead ball, 36 gramms, 576 grains
.60 s = 15 mm steel ball, 12 gramms, 192 grains
.38 s = 9.5 mm steel ball, 4 gramms, 64 grains

TBG = Thera Band gold, 9 x 6 x 20 cm
TBS = Thera Band black, 21 x 7 x 20 cm


TBG .38 s 78 m/s, 255 fps
TBG .60 s 73 m/s, 239 fps
TBG .75 l 54 m/s, 177 fps

TBS .38 s 90 m/s, 295 fps
TBS .60 s 79 m/s, 259 fps
TBS .75 l 63 m/s, 206 fps

Max. Energy TBG = 52 Joule = 38 fpe
Max. Energy TBS = 71 Joule = 52 fpe

The black bands did not tear throughout the tests.

Temperature was 14 degrees celsius, 57 degrees Fahrenheit.

The theory works! Now let's see what will happen if my thiiiiin Thera Band Tan band arrives. This is the thinnest material you can get. I guess to get to the same force, I will have to use ten layers per side.


Jörg

Monday, November 9, 2009

Video Review: Two commercial slingshots tested

Hello,

The Slingshot Channel has tested two commercial slingshots.

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It is one of the most beautiful slingshots that money can buy: The "Lucky Seven", made by Bellsofhythe from England.

It is truly gorgeous and well worth the money (costs about 100 UK pounds, altogether).

http://www.youtube.com/watch?v=lnaCg-IF13o[/url]

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There has been a lot of hype around the Chinese made "Dankung" slingshots lately. The Slingshot Channel has received one of their larger, more expensive models, the "Warrior", and duly tested it.

http://www.youtube.com/watch?v=wrlam2C7GmQ

Sunday, November 8, 2009

Laser equipped "Sniper" Slingshot

A friend of mine (Eric from Boulder/Colorado) challenged me a while ago. He said "Make a precise slingshot instead of a powerful one!"

Well, I did. Here is the result:

http://www.youtube.com/watch?v=YS_m-NJSK2I

Enjoy!

Sunday, November 1, 2009

Halloween Special Online!

Here it is:

http://www.youtube.com/watch?v=Nd8TUnYQBzo