Sunkin starts new nail gun

[MarylandMark]

"The D-16"

It can drive a 16-D nail through a 2 X 4 at 200 yards!

[Tony]

Stecz made his own too.

[Chris]

I built this thing last summer. It'll shoot a tennis ball through a 3/4" sheet of plywood at 30 feet.

http://i38.photobucket.com/albums/e123/CTS1489/DSC01734.jpg

[fund razor]

Has anyone returned your serve yet? :D

[Sea-Dated]

I built this thing last summer. It'll shoot a tennis ball through a 3/4" sheet of plywood at 30 feet.

http://i38.photobucket.com/albums/e123/CTS1489/DSC01734.jpg

Wow......

[MarylandMark]

We call them potato guns around here

http://www.spudtech.com/movies/asf/tornado%20simulator.wmv

[jmeng]

I built this thing last summer. It'll shoot a tennis ball through a 3/4" sheet of plywood at 30 feet.

http://i38.photobucket.com/albums/e123/CTS1489/DSC01734.jpg

We need video!!!!!!:03:

[sellsman11]

We need video!!!!!!:03:
:03::dupe:


YEAH.....Looks like harmless PVC pipe to me!!!

[Chris]

I'll bring it to Ocean City. We can shoot tennis balls off the hotel balcony.

[Ratickle]

Stecz made his own too.

:rofl: :rofl: :rofl:


And I heard it was Rainbow colored.....

Obviously unfounded rumors....

[Ratickle]

I built this thing last summer. It'll shoot a tennis ball through a 3/4" sheet of plywood at 30 feet.

http://i38.photobucket.com/albums/e123/CTS1489/DSC01734.jpg

Need to get a radar gun on that...

[phragle]

i'll bring it to ocean city. We can shoot tennis balls off the hotel balcony.

sweeetttt!!!!!!!

[Chris]

Makes a nice, big boom.

[Tommy Gun]

I'll bring it to Ocean City. We can shoot tennis balls off the hotel balcony.

I was wondering why one would build such a thing...I mean who would really want to shoot tennis balls thru plywood?

[Wrinkleface]

:03::dupe:


YEAH.....Looks like harmless PVC pipe to me!!!

What's harmless 2 U could B some SERIOUS kink 2 the Sunkster!!!!:26:

[03darkshadow]

I'll bring it to Ocean City. We can shoot tennis balls off the hotel balcony.



:rofl: can i come witness this? from behind the gun..

[Tommy Gun]

:rofl: can i come witness this? from behind the gun..

I want video.

[fund razor]

I was wondering why one would build such a thing...I mean who would really want to shoot tennis balls thru plywood?

Tornado researchers. :D

Guys who build cool things?

Imagine the crowd control implications. Screw the bean bag gun.
The only downside is that it needs to be mounted on a humvee.

[jeff1000man]

I built this thing last summer. It'll shoot a tennis ball through a 3/4" sheet of plywood at 30 feet.

http://i38.photobucket.com/albums/e123/CTS1489/DSC01734.jpg

R those sold on ebay? I really have a good use for that.

[buck]

I was wondering why one would build such a thing...I mean who would really want to shoot tennis balls thru plywood?

Where I come from people usually ask "Why wouldn't someone want to build such a thing"? :sifone:

Buck

[BUIZILLA]

I was the neighborhood KING of Potato Launchers

where can I get the plans for this???

gotta have one of those

gotta

gotta

gotta

[Buoy]

Tornado researchers. :D

Guys who build cool things?

Imagine the crowd control implications. Screw the bean bag gun.
The only downside is that it needs to be mounted on a humvee.

I have one available, but it's only an H3.
If needed, we can mount it on my Avalanche.
Still would look pretty cool.

[PPSB]

I built this thing last summer. It'll shoot a tennis ball through a 3/4" sheet of plywood at 30 feet.

http://i38.photobucket.com/albums/e123/CTS1489/DSC01734.jpg

I had a similar design back in college. A potato fired from about 20 feet down the hall took the RA's door right off the hinges.

[JupiterSunsation]

potato guns can be felony charges for discharging a firearm if the cop wants to be a pr!ck They are dangerous due to the velocity and size of the potato/tennis ball.

[Tinkerer]

I built one of those tennis ball cannons years ago.
Only thing is it used M80's for the propelant.
Tennis ball was only good for one shot because it blew all the fur off with the first shot.
Aimed straight up using an orange tennis ball it would go out of sight and not come back to earth for about 60 seconds.
M80's are hard to get these days.
Droped a ball on the nighbors house about 1/4 mile away.

[Tinkerer]

It's not a FIREARM if it only uses compressed air.

I used to use a pellet gun in the CITY.

[Tinkerer]

Neighbor was a cop. She used to call me when there was a varment to get rid of.

[Tony]

The proper mix of Oxy/Acetylene will launch a spud clean through the neighbor's cat.

[Wrinkleface]

The proper mix of Oxy/Acetylene will launch a spud clean through the neighbor's cat.

pix!!!:26:

[Bobcat]

The proper mix of Oxy/Acetylene will launch a spud clean through the neighbor's cat.

I have a similar story that I will tell tomorrow:sifone:

[Chris]

Why? Because a buddy sent me a vid of one that used hairspray. I wanted to see if I could build one. I did some internet research and came up with this. I made 6 of them for the local school to use at football games, etc. They shot confetti. Or sometimes T-shirts. I still have 3 of them hanging in my shop that we've never used- they're smaller. 2" bore (could use for potatoes) . The tennis ball version uses 2.5" tube for the barrel.

I take it to the occasional picnic and shoot them straight up. The kids love to try to catch them. They go up so far you lose site for a good long time.

[Chris]

This is the bean bag gun. 37mm Smith & Wesson. Shoots bags, unbagged balls, single slugs and parachute flares. Big fun. Expensive to shoot though.

[Chris]

I was the neighborhood KING of Potato Launchers

where can I get the plans for this???

gotta have one of those

gotta

gotta

gotta

If you guys want to build these, I can take detailed pics and give you whatever tips. It's all sch. 40 PVC and Rain Bird sprinkler valves- with some mods.

[Buoy]

If you guys want to build these, I can take detailed pics and give you whatever tips. It's all sch. 40 PVC and Rain Bird sprinkler valves- with some mods.

We all know that Chris knows everything...
But, he seems to have a passion about his spud guns.

[phragle]

how much you got in it with materials??

[Scarab KV]

The proper mix of Oxy/Acetylene will launch a spud clean through the neighbor's cat.

Hmmmm....the neighbor's dog comes to mind:sifone:

[Tony]

I only did the torch mix once, the reccoil ripped the gun straight backwards out of my hands so hard that the igniter damn near tore my finger off. After that we added real handles and mounted it to a 4 wheeler, ported the barrel and started experimenting with propane. I think its still hanging somewhere in my buddy's barn.

[fund razor]

I made 6 of them for the local school to use at football games, etc. They shot confetti. Or sometimes T-shirts.

Once again, proving who is the coolest Dad ever. :)

I think this was how Maude Flanders died on the Simpsons. She was shot with a T Shirt cannon by the Duff Man and fell off the bleachers. :D

[Chris]

how much you got in it with materials??

No idea.maybe a hundred bucks or so. The most expensive single part is the trigger. The air chambers must release very rapidly. If they release slowly, the ball has exited the barrel while the chambers are still dumping air volume and that costs you velocity. The sprinkler valves are diaphragm valves. They use the pressure differential of area to hold the flapper closed- the top area is larger than the bottom and both have equal pressure. So, by having larger area, the flapper stays shut over the discharge port. You have to dump the air out of the top quickly so the diaphragm opens quickly. To do that, I needed a very high flow air blow gun. I tried a $5 one and you could still hear the air leaving after the ball- and it made a funny "wounded moose" noise when the diaphragms vibrated open and shut. After increasing the outflow, that stopped and you now get a sharp bang when it fires.

As for the rest, I think the valves were $15 and the rest is just Sch. 40 PVC pieces. You have to go to a plumbing supply to get the 2.5" and to get the Sch. 40. If you use Home Depot DWV pipe and fittings, it will explode like a bomb and kill you.

A word of warning- PVC is not air-rated. It gets brittle when cold. It's perfectly safe but only down to about 40 degrees. Below that, a sharp rap when pressurized can cause it to explode.

[MarylandMark]

http://www.spudtech.com/movies/asf/tornado%20simulator.wmv

http://www.spudtech.com/store/

I'm sure it's cheaper to do it yourself

We use the hair spray ones around here- some thing as complicated as these would end up being too dangerous in my hands after drinks

[Chris]

I built virtual duplicates of this one for the confetti guns-

http://www.spudtech.com/store/index.php?main_page=product_info&cPath=1&products_id=75

I did it because I wanted to. If I just wanted the gun, it would have been way smarter to buy this one.

[drpete3]

Funny how potato guns and boats seem to go together. I once bouhgt a boat at an auction and guess what i found left behind. You got it...a potato gun. Also just to note. Back in college I burnt my eye lashes, brows and bangs from left over propelland inside the gun. 10 beers had nothing to do with that situation