Search found 26203 matches

by jackssmirkingrevenge
Wed Dec 18, 2024 9:28 am
Forum: BB, Airsoft, and Pellet Guns
Topic: Crosman Pell Master 700 .22 CO2 rifle balanced valve HPA conversion
Replies: 5
Views: 1046

Re: Crosman Pell Master 700 .22 CO2 rifle balanced valve HPA conversion

Thanks gents!
Techexical wrote:
Tue Dec 17, 2024 12:35 am
like how the extended chamber doesn't mess with the overall look that much to it too, nice job modifying it :D
There was some surface rust I deliberately didn't clean up for that suitably aged look :D
by jackssmirkingrevenge
Wed Dec 18, 2024 9:24 am
Forum: Combustion Cannons
Topic: Over shoulder potato cannon
Replies: 12
Views: 2668

Re: Over shoulder potato cannon

Not entirely sure if the stats are right considering I have disc data on it and just shoot cut potato's from a brass tube in the barrel, despite it clearly just being a regular combustion cannon, hopefully doesn't goof it up You need to "trick" HGDT for combustions by putting disk failure at zero a...
by jackssmirkingrevenge
Wed Dec 18, 2024 9:17 am
Forum: Hybrid Cannons
Topic: Mon blue king cal 68
Replies: 16
Views: 2928

Re: Mon blue king cal 68

Since we're talking about rifling, have you seen how people are using "electrochemical machining" to rifle barrels from steel tubing? A very interesting way of doing it for those who are more at ease with 3D printing although I suspect it would be a challenge for rifle length barrels. mark.s has a ...
by jackssmirkingrevenge
Sat Dec 14, 2024 11:43 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Crosman Pell Master 700 .22 CO2 rifle balanced valve HPA conversion
Replies: 5
Views: 1046

Crosman Pell Master 700 .22 CO2 rifle balanced valve HPA conversion

Yet another vintage pellet gun resto-mod :D The Pell Master 700 is a somewhat unique CO2 rifle that was first manufactured by Crosman in 1967 and only made for four years. Unlike most similar devices pellets are loaded through a rotary tap rather than a bolt, and the hammer and valve are in line wit...
by jackssmirkingrevenge
Sat Nov 30, 2024 11:53 pm
Forum: Combustion Cannons
Topic: Multi-shot Combustion repeater
Replies: 1
Views: 1390

Re: Multi-shot Combustion repeater

Commercially the Tippmann C3 Paintball Marker is a pump action combustion repeater. https://i.imgur.com/AKKWnEk.gif gifv link Tippmann C3 Patent Our resident Argentine virtuoso has made several repeaters including a semi-automatic hybrid that works very well: https://www.youtube.com/watch?v=FoaEqxFI...
by jackssmirkingrevenge
Sat Nov 30, 2024 11:40 pm
Forum: General How-To & Discussion
Topic: Nouvelle mise à jour hgdt ggdt
Replies: 4
Views: 4643

Re: Nouvelle mise à jour hgdt ggdt

D_Hall who created GGDT/HGDT still visits the forum occasionally but unfortunately I believe he had stated that no further updates were forthcoming.
by jackssmirkingrevenge
Fri Nov 22, 2024 11:01 am
Forum: Hybrid Cannons
Topic: Mon blue king cal 68
Replies: 16
Views: 2928

Re: Mon blue king cal 68

Some impressive performance statistics and more than 50% retained energy at 500 meters is impressive! I'm not sure that the "rifling" on the projectile itself has any real benefit but it does make for an attractive round :D Have you tried some different burst disk thicknesses before finding an optim...
by jackssmirkingrevenge
Fri Nov 22, 2024 10:54 am
Forum: Combustion Cannons
Topic: Over shoulder potato cannon
Replies: 12
Views: 2668

Re: Over shoulder potato cannon

Techexical wrote:
Tue Nov 19, 2024 2:33 am
Now to figure out how to get ggdt or whatever the programs name is to get running on my laptop, so I can see the stats of my of cannon, haven't even got it setup yet :|
You can download it here
by jackssmirkingrevenge
Mon Nov 18, 2024 3:13 pm
Forum: Combustion Cannons
Topic: Over shoulder potato cannon
Replies: 12
Views: 2668

Re: Over shoulder potato cannon

Good stuff, not often you see a breech loading design.
by jackssmirkingrevenge
Mon Nov 18, 2024 3:08 pm
Forum: SpudFiles Discussion
Topic: Comment être accepté pour les sujets
Replies: 4
Views: 1178

Re: Comment être accepté pour les sujets

c'est devenu tellement rare les jeunes de nos jours construisent rarement des spud gun... Malheureusement, avec l'omniprésence des jeux vidéo et des réseaux sociaux, ce passe-temps suscite beaucoup moins d'intérêt chez les jeunes. Même le forum Patator était très actif a l'epoque, mais il est égale...
by jackssmirkingrevenge
Mon Nov 18, 2024 3:01 pm
Forum: Hybrid Cannons
Topic: Mon blue king cal 68
Replies: 16
Views: 2928

Re: Mon blue king cal 68

Impressive, I'm guessing the projectile core is a cast bullet for muzzle-loaders? Does the 3D printed sheath actually survive traveling down the barrel and what material is it exactly? le canon est à âme rayé grâce à une presse hydraulique pour pousser l'outil via des rallonges pour 1m Did you use a...
by jackssmirkingrevenge
Mon Nov 18, 2024 2:52 pm
Forum: Off-Topic Hobbies
Topic: Chat GPT designs high frequncy check-valves
Replies: 3
Views: 897

Re: Chat GPT designs high frequncy check-valves

Definitely visually interesting but in technical terms it seems it will be a while before our robot overlords will arm themselves with pneumatic weaponry :lol:
by jackssmirkingrevenge
Sat Nov 16, 2024 12:26 pm
Forum: Hybrid Cannons
Topic: Mon blue king cal 68
Replies: 16
Views: 2928

Re: Mon blue king cal 68

Voici l'image:

Image

That looks fantastic, I like how you've incorporated 3D printed elements and impressive muzzle energy too, it must be very loud!

Interested to see the projectile, is the barrel a smoothbore?
by jackssmirkingrevenge
Sat Nov 16, 2024 12:22 pm
Forum: SpudFiles Discussion
Topic: Comment être accepté pour les sujets
Replies: 4
Views: 1178

Re: Comment être accepté pour les sujets

C'est étrange, avez-vous des liens vers vos réponses ? Parfois, pour les nouveaux utilisateurs, une approbation manuelle des administrateurs est nécessaire.
by jackssmirkingrevenge
Tue Nov 12, 2024 9:50 am
Forum: Pneumatic Cannons
Topic: 3” Sprinkler Valve Tennis Ball Cannon
Replies: 4
Views: 1031

Re: 3” Sprinkler Valve Tennis Ball Cannon

Without machine tools it's definitely more challenging to get a piston to work so going for the sprinkler valve was probably the best option.