Search found 26002 matches

by jackssmirkingrevenge
Fri Jul 29, 2022 4:56 am
Forum: Combustion Cannons
Topic: Bottle Launcher "Mad Hilda XXL
Replies: 9
Views: 394

Re: Bottle Launcher "Mad Hilda XXL

Very interesting work!

I love the "spade grip", reminds me of a friend's post-apocalyptic (airsoft!) RPK:

Image
by jackssmirkingrevenge
Fri Jul 29, 2022 4:52 am
Forum: BB, Airsoft, and Pellet Guns
Topic: Bolt action pcp rifle with a magazine
Replies: 3
Views: 170

Re: Bolt action pcp rifle with a magazine

Du très beau travail réalisé avec des matériaux "over the counter" et sans outils spécialisés, very good job!

I bet you could up the pressure even more but even as it is you're getting very respectable power and shot count.
by jackssmirkingrevenge
Fri Jul 29, 2022 4:45 am
Forum: Ammo & Parts
Topic: Great video testing spud gun failure/safety (ThebackyardScientist)
Replies: 4
Views: 1170

Re: Great video testing spud gun failure/safety (ThebackyardScientist)

I remember proposing this sort of test a long time ago :D That was very fun to watch, I'm amazed by how much pressure it took to actually burst a lot of the PVC, although that of course is no endorsement to exceed the working pressures recommended by the manufacturers. It also makes the point that e...
by jackssmirkingrevenge
Fri Jul 29, 2022 4:34 am
Forum: SpudFiles Discussion
Topic: Can't believe this site is still going
Replies: 4
Views: 1149

Re: Can't believe this site is still going

Moonbogg wrote:
Mon Jul 25, 2022 9:44 pm
I will either leave to my kids or force the kids to bury me with the cannons, not sure which yet.
The latter would be an interesting discovery for future archeologists :D in the former case they could be used to distribute your ashes 🤔
by jackssmirkingrevenge
Mon Jul 18, 2022 9:58 am
Forum: Pneumatic Cannons
Topic: the air cartridge we wanted
Replies: 8
Views: 3194

Re: the air cartridge we wanted

Take a look at this thread, plenty of examples on the same concept.
by jackssmirkingrevenge
Mon Jul 18, 2022 9:29 am
Forum: BB, Airsoft, and Pellet Guns
Topic: Benjamin Model 30/30 CO2 Carbine Repeater "Hot Shot"
Replies: 8
Views: 3084

Re: Benjamin Model 30/30 CO2 Carbine Repeater "Hot Shot"

wyz2285 wrote:
Wed Jul 13, 2022 3:19 pm
it's good to see the forum is still alive and you're still here Jack!
Well, sort-of :roll: :D and glad to see you're still around too!
by jackssmirkingrevenge
Mon Jul 18, 2022 9:27 am
Forum: BB, Airsoft, and Pellet Guns
Topic: Semi-automatic airsoft gun, very simple
Replies: 6
Views: 3510

Re: Semi-automatic airsoft gun, very simple

If you keep pulling the air pistol trigger does the blow forward valve in the syringe stays open? If so I think by restricting the blowgun airflow you could make it fire fully automatic. Yes, I had hoped it would work in full auto ( here is a development thread) but I could never get it to cycle pr...
by jackssmirkingrevenge
Mon Jul 11, 2022 12:27 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Benjamin Model 30/30 CO2 Carbine Repeater "Hot Shot"
Replies: 8
Views: 3084

Re: Benjamin Model 30/30 CO2 Carbine Repeater "Hot Shot"

I definitely have a weakness for old and unusual airguns :) I like the idea because it comes out of the conceptual "box" and is repeated all the time. There is always a different way to do the same with its pros and cons for sure. I was unaware of this design when I posted almost the same idea 15 ye...
by jackssmirkingrevenge
Sun Jul 10, 2022 8:13 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Palmer Cap-Chur "Red's Special" Tranquilizer Dart Gun
Replies: 19
Views: 8623

Re: Palmer Cap-Chur "Red's Special" Tranquilizer Dart Gun

I think I will do what I wanted to do with the first one (but hesitated because it's a bit of an antique) and give it a bit of an upgrade. Interesting that the current version being sold has gone back to the removable bolt and two fixed power settings, albeit with a rear cocking bolt and a trigger g...
by jackssmirkingrevenge
Sun Jul 10, 2022 7:53 am
Forum: BB, Airsoft, and Pellet Guns
Topic: Palmer Cap-Chur "Red's Special" Tranquilizer Dart Gun
Replies: 19
Views: 8623

Re: Palmer Cap-Chur "Red's Special" Tranquilizer Dart Gun

I have obtained a second example of these curious devices, of more recent manufacture with a number of refinements compared to the older original. Here they are side by side, with the newer version below the original one: https://i.imgur.com/UuNsjfv.jpg The most obvious refinement is a cutout in the...
by jackssmirkingrevenge
Sun Jul 10, 2022 7:05 am
Forum: BB, Airsoft, and Pellet Guns
Topic: Benjamin Model 30/30 CO2 Carbine Repeater "Hot Shot"
Replies: 8
Views: 3084

Benjamin Model 30/30 CO2 Carbine Repeater "Hot Shot"

Herewith my addition to the unusual vintage airgun stable, the Benjamin 30/30. This particular example was purchased as "unrepairable" but is in quite fine condition and appears to be complete: http://i.imgur.com/K2Y10mYh.jpg Internal diagram showing the unconventional mechanism. The barrel assembly...
by jackssmirkingrevenge
Sun Jul 10, 2022 7:00 am
Forum: Combustion Cannons
Topic: How do you get consistent performance out of a "cheap" cannon?
Replies: 9
Views: 703

Re: How do you get consistent performance out of a "cheap" cannon?

The solution is to meter your fuel, there are several ways you can go about this.

I personally prefer syringe injection but it depends on the size of the cannon, above a certain chamber volume you won't find a syringe big enough.
by jackssmirkingrevenge
Sun Jul 10, 2022 6:55 am
Forum: Combustion Cannons
Topic: easy mapp gas potato cannon
Replies: 1
Views: 435

Re: easy mapp gas potato cannon

One is generally well advised not to mess with oxygen. If you do, PVC construction is not a good idea, as the potential pressure generated increases proportionally to the amount of oxygen available. Consider using a syringe to meter your fuel for good and consistent performance, rather than guesswor...
by jackssmirkingrevenge
Sat Jul 09, 2022 10:22 pm
Forum: SpudFiles Discussion
Topic: Can't believe this site is still going
Replies: 4
Views: 1149

Re: Can't believe this site is still going

Still here but with much less activity, the question has been asked as to whether spudding is dead, and in the Anglosphere at least there definitely seems to be a lot less interest especially from the younger individuals that fuel this hobby.
by jackssmirkingrevenge
Sun Jul 03, 2022 4:48 pm
Forum: Pneumatic Cannons
Topic: the air cartridge we wanted
Replies: 8
Views: 3194

Re: the air cartridge we wanted

That's true, although for most of the setups we see on spudfiles a slow leak would not be sufficient to pilot the valve, as it's rare that the the piston or diaphragm is a perfect seal, especially without the shock of a sudden pressure imbalance.