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The Slingshot Channel Thread

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Unread postAuthor: JoergS » Sun Jun 20, 2010 12:06 pm

Here is the video:

http://www.youtube.com/watch?v=jOd6r2x-j7I

Unbelievable, the .63" (16 mm) lead ball went through the cat food can filled with water, then on through 40 cm of ballistic gelatine...

As a bonus, I also fired some other crossbows and the boncrushers through the gel.

Enjoy!
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Unread postAuthor: clemsonguy1125 » Sun Jun 20, 2010 12:29 pm

Amazing, thats all I can say
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That is all.
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Unread postAuthor: POLAND_SPUD » Sun Jun 20, 2010 1:01 pm

amazing...
I loled at 2:00 when you slapped that block of gelatin :D
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Unread postAuthor: jackssmirkingrevenge » Sun Jun 20, 2010 1:25 pm

POLAND_SPUD wrote:I loled at 2:00 when you slapped that block of gelatin :D


Yep :) a comparison comes to mind but not repeatable in polite company :D

Very impressive Joerg, it would be good to see a group of shots fired at a paper target (from rest) to see what sort of accuracy you're getting.

Also I notice cat food tin, but no cats evident... had you run out of gelatin :D
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Unread postAuthor: JoergS » Sun Jun 20, 2010 3:47 pm

Life is about balance.

After presenting a brutal, ugly, frightening slingshot crossbow today, I needed to make its counterpart.

A humble, basic, pleasing frame.

I chose moor oak for the wooden part, sunken for 2000 years in airless depths. It got resurrected, and then turned into a slingshot!

The wood is very dark, and also very lightweight. I had to strengthen it with stainless steel to give it back the sturdyness it once had. 12 mm!

The wood "skin" has 2 mm walls, that is all.

I left the handle a bit rectangular towards the end (the "butt"). I like it that way! I will shoot it in the index+thumb-on-the-fork style.

The polished steel and the dark wood are very pleasing to my eyes. It is very smooth. Again, the wood is natural, no staining, no coating.

Image

Image

Image

How do you like it?

Jörg
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Unread postAuthor: deathbyDWV » Sun Jun 20, 2010 6:21 pm

Wow. Another amazing one... Do you weld together the center piece? It looks so smooth I wasn't sure...
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Unread postAuthor: JoergS » Mon Jun 21, 2010 12:07 am

Yes, welded, then smoothed. I must say I am getting rather good with the welding gear.
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Unread postAuthor: spudtyrrant » Mon Jun 21, 2010 12:32 am

another beauty joerg,, but i have one question, where you you keep all these :shock:
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Unread postAuthor: JoergS » Mon Jun 21, 2010 6:59 am

In my house, there are slingshots everywhere!
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Unread postAuthor: deathbyDWV » Mon Jun 21, 2010 10:15 am

Sounds kind like my house, just with cannons... :D
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Unread postAuthor: kydavies » Mon Jun 21, 2010 11:38 am

lol nice im being force to hold off on by building cause im moving in 8 days. i live in a small town of 16 000 people so we dont have any big plumbing stores. im moving to a bigger town with a really big plumbing store that only sells PVC, PEX and ABS pipe. and also there are a lot of big farms that i can go to and shoot spuds. :notworthy: i have to pack up my cannons :cry:
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mikemurph wrote:yea, the ammo has been changed to a more aero dynamic projectile. it consists of the back half of a dart, and a hot glue ball
AHahahahah!!
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Unread postAuthor: Gun Freak » Mon Jun 21, 2010 9:47 pm

Joerg... don't know what to say... it is beyond awsomeness.
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Can you see where I am headed with this?

Unread postAuthor: boyntonstu » Wed Jun 23, 2010 2:37 pm

This is a 48" Aluminum clamp with stops every inch.

The fork is fixed and the Theraband silver tubing will be a single piece coming from underneath and over the pulleys.

The trigger mechanism will be attached to the sliding block.

A foot stirrup may be added to the fork and a pair of draw handles to the trigger to enable a 2 handed draw.

BTW The 48" clamp is on sale for $8.99 at Harbor Freight.

(I removed the fixed clamp end with the screw mechanism)
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Unread postAuthor: JoergS » Wed Jun 23, 2010 11:08 pm

Stu, I hope that the locking is strong enough for Thera Tube Silver. Be careful, should something break then the rod will be on its way in your direction.

Also stock up on heavy lead balls. The Thera Tube Silver needs that to maximize power if you use it as a direct energy source without any transmission or air compressor.

It is not very fast on the retraction, so lightweight bullets won't do any good. Heavy stuff works well, though.
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Unread postAuthor: JoergS » Wed Jun 23, 2010 11:38 pm

Shot it yesterday. This is too much fun!

Distance is 14 meters, I leaned the "barrel" against the door frame. Shot 10 rounds first, then put another target (air rifle size) over the first one. So we have one target with 10 and one with 20 hits.

Ammo was 15 mm steel, and I used "hunterbands" (two Thera Gold per side, 3cm x 2cm x 18cm effective band size).

Image
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