I know in my last post I mentioned using carpeting. I found a link to an example of what I was talking about.

http://www.archerytalk.com/vb/showthrea ... %20t+build

I get phone books all the time sent to my house. I start collecting them now and build some sort of chamber type deal to hold them in place... A lot cheaper then buying a backstop box..

I'd go with that honestly. I know that pre-made targets are quite expensive. I know that old carpeting also ...

I would like to take credit for said youtube comment.

Now you've all covered the problem of the round, but what about the backstop? I know one of the worst feelings is having your round go through and beyond the target in a residential area without anything to stop it.

If you're not worried about ...

mattyzip77 wrote:I think you should paint the sprinkler valve dude. It will make it look way better and cooler with it on there. Also, is the sprinkler valve modified???

Yes of course. Blow gun and all.

Did you think about hollowing out then capping the piston? I would add a bolt and washer to keep the sealing face well in place too.

I wouldn't modify my piston at all. Acrylic can be very brittle and I think that modifying it at all would compromise it's integrity. I already had it crack a ...

Nice job and that paint is pimp!!! Can we get some shots of the insides and the piston??

This is before I painted it but it'll do.

http://i875.photobucket.com/albums/ab319/bcfinatic/DSCN0206.jpg

http://i875.photobucket.com/albums/ab319/bcfinatic/DSCN0210.jpg

http://i875.photobucket.com ...

Wow, it's been a year already? It seems like only yesterday I was asking noobish questions, but alas it is complete. It was originally for a physics project. Other students also made potato cannons but they were spray and pray, and in a head to head competition it blew them away. The reason I've not ...

RJB INDUSTRIES wrote:Inventor is the best, between autocad and solidworks, solidworks without any doubt....


RJB INDUSTRIES

I would have to agree, Inventor is amazing.

lookin good, nice job. especially for a vehicle with 250,000 miles.

I would too, but I don't really have anything to destroy. and also I think I'm different than a lot of the guys on here, because I prefer range over sheer destruction. But, if I find something that I can destroy, and I have a camera at the time I'll at least take pics, if not video.

some full power, un-piston-interrupted video shots would be cool. :wink:
i'm not sure I understand what you mean.


The fix for both is a felt and grease seal, o rings, or other effective obstruction to excess leakage past the piston into the pilot.

I had the same issue at times with the ...

Just an update, I got it to work properly and have done a little bit of testing. I also worked on the aesthetics a little bit. so here's a picture. tell me what you think. oh yea, and the Bi-pod is removable and the part it mounts on can act as a fore-grip.

http://i875.photobucket.com/albums/ab319 ...

oh wow, how did I forget about the Rage heads? i've played with those before, they are nasty!!!!!

side note, would others mind posting up their bow setups? i'll post mine, if others will. I just don't want to waste my time posting pictures if people don't care, or aren't interested.

Now I don't hunt, however I do shoot target archery competitively, but anyways. There is a archery shop down the road from my house that has the reign broadeheads, and they are beast. They are designed to pulverize bones. heres a link, the reign is at around 3:50. it destroys the competition ...

I sure hope so, I don't want it malfunctioning when I'm trying to give my presentation.