40 replies to this topic

[Rapier]

Wow Joerg. That beats the medieval boys hands down. I'm betting they'd crap their daks!

[JoergS]

Everything is repaired, with reinforced parts. But for now, the 20 mm tubes get a rest.

[NoSugarRob]

your a proper nutter Mr J

[AaronC]

Sorry you got hurt, but glad you found a structural deficiency before it hit you in the face or something!

[bikermikearchery]

I realy want to see the big stuff in action.

[JoergS]

I am still struggling with the band attachment.

The thick tubes have so much draw force that the conventional methods all fail. Knot in tube slips out. Constriction knot does not help. I am now trying a double constriction knot loop with additional rubber band attachment. This may or may not work.

Next problem is the nut, which is steel reinforced, but still it is mostly wood. I may have to replace both nut and tickler with massive steel parts.

A 200 lbs balester (ball shooting crossbow) is worth the effort, though. This will be a mighty weapon only strong men can draw out and load.

[PandaMan]

This will be awesome!

[bootneck]

I think a destruction vid is needed on the 20 mm stuff, can you get sheep and pigs heads were you are? or cows heads? since there not flexable i bet it'l make a better video than trying to shoot through thick pig skin, and we know it will go through meat fine so how about a head?

[colt]

this is really interesting to me. you are coming up on some really good power! very cool

[bikermikearchery]

. This is the most intriguing crossbow designs yet. I hope you will do some more shooting videos with this design. I am interested in how the short draw with pre-stressed bands compares to the longer draw bands on your other designs

[Simon Van den Broeck]

can you shoot arrows with this one you think ? can i have some help at that i want to make on of these to the stock is allready finished

[PebbleShooter]

Have you thought about using hose clamps, heavy duty zip ties or something like that?

Only problem i see there is it cutting into the rubber with use which you don't want.

[Simon Van den Broeck]

JoergS, on 22 June 2011 - 01:10 AM, said:

I am still struggling with the band attachment.

The thick tubes have so much draw force that the conventional methods all fail. Knot in tube slips out. Constriction knot does not help. I am now trying a double constriction knot loop with additional rubber band attachment. This may or may not work.

Next problem is the nut, which is steel reinforced, but still it is mostly wood. I may have to replace both nut and tickler with massive steel parts.

A 200 lbs balester (ball shooting crossbow) is worth the effort, though. This will be a mighty weapon only strong men can draw out and load.

hye joerg , i wazs wondering if it is so hard to cock maybe you can use a goatsfoot?

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[cheese]

x + + ^2- =me!

Edited by cheese, 06 February 2012 - 12:36 PM.

[mattardel]

That is absolutely frightening! I LOVE IT!

[lightleak]

Wow, very impressive. I guess its time to move ahead and instead of the safety goggles get a nice full face helmet..

Was thinking about something like this:



Best regards!

l.

Edited by lightleak, 07 February 2012 - 02:41 AM.