Search found 175 matches

by Anatine Duo
Sat May 07, 2022 7:29 am
Forum: Hybrid Cannons
Topic: Hybrid pumped weapon project
Replies: 19
Views: 2570

Re: Armadas 1500 II (hybrid pump rifle)

Sick! Looks very well put together. Inspiring actually!
by Anatine Duo
Sat May 07, 2022 7:26 am
Forum: BB, Airsoft, and Pellet Guns
Topic: Little help with my first prototype
Replies: 6
Views: 1733

Re: Little help with my first prototype

That is a lot of work! Nice to see a mechanical trigger. Also the metal liner to hold the trigger and sear is a great idea. There are several other ways to set up a sear to hold back the valve but would require almost total redesign. If you can get yours to work I would stick with it. Basically I wo...
by Anatine Duo
Sat Apr 02, 2022 7:46 pm
Forum: Pneumatic Cannons
Topic: Throwbag Cannon
Replies: 7
Views: 1957

Re: Throwbag Cannon

More important for me is the failure mode. PVC makes sharp shrapnel, most ABS yawns or makes squared off pieces.
by Anatine Duo
Sat Apr 02, 2022 7:42 pm
Forum: Pneumatic Cannons
Topic: Food Mold-Gas pneumatic build
Replies: 6
Views: 1592

Re: Food Mold-Gas pneumatic build

It's no joke... those gases can be dangerous! :)
by Anatine Duo
Sat Mar 26, 2022 8:02 am
Forum: General How-To & Discussion
Topic: Canada prohibits spudguns over 20mm
Replies: 13
Views: 7453

Re: Canada prohibits spudguns over 20mm

It says here only one of the characteristics is sufficient unfortunately. from https://www.publicsafety.gc.ca/cnt/cntrng-crm/frrms/paf-afa-en.aspx "In addition to the list prohibited by model, all firearms with one or more of the following physical characteristics are prohibited on the basis that th...
by Anatine Duo
Sat Mar 26, 2022 7:50 am
Forum: Pneumatic Cannons
Topic: Throwbag Cannon
Replies: 7
Views: 1957

Re: Throwbag Cannon

always nice to see practical applications
by Anatine Duo
Sat Mar 26, 2022 7:48 am
Forum: Pneumatic Cannons
Topic: A bit of Nerf fun
Replies: 4
Views: 1424

Re: A bit of Nerf fun

another nice one... reminds me of Fallout
by Anatine Duo
Sat Mar 26, 2022 7:47 am
Forum: BB, Airsoft, and Pellet Guns
Topic: Little help with my first prototype
Replies: 6
Views: 1733

Re: Little help with my first prototype

I think that the pressure drop is for the chamber. When you see the warning about barrel choking flow it's a sign your chamber is too large for the barrel... should be nice and loud but maybe not the balanced performance you want. Increasing barrel diameter nearly always increases energy, and veloci...
by Anatine Duo
Sun Mar 20, 2022 8:56 am
Forum: BB, Airsoft, and Pellet Guns
Topic: Little help with my first prototype
Replies: 6
Views: 1733

Re: Little help with my first prototype

Looks fun! I agree A is oversize. The reservoir will lose pressure every shot, and if A is not very much smaller than the reservoir, that loss of pressure will be quite noticeable every shot. The hammer valve can have a self regulating effect but that is totally different technology. I have a slide ...
by Anatine Duo
Thu Mar 10, 2022 4:27 pm
Forum: Pneumatic Cannons
Topic: the air cartridge we wanted
Replies: 8
Views: 3777

the air cartridge we wanted

Joerg's new toy. I fooled around with this cartridge design decades ago but gave up because it was long before 4500 psi handpumps were available. This sparked interest in it again, maybe with a 40mm size cartridge 8-) ... maybe rimless for better feeding in JSR's brain. https://www.youtube.com/watch...
by Anatine Duo
Thu Mar 10, 2022 4:18 pm
Forum: General How-To & Discussion
Topic: tennis ball gun for my dog
Replies: 8
Views: 1726

Re: tennis ball gun for my dog

ha ha :) So I actually looked around for this device but could not find anything that matched the description. Just thinking we would need a long stroke to compress enough air in a single stroke to launch a ball any decent distance. Increasing the bore will make it hard to charge. Big valve too. Or ...
by Anatine Duo
Mon Mar 07, 2022 11:44 am
Forum: General How-To & Discussion
Topic: tennis ball gun for my dog
Replies: 8
Views: 1726

Re: tennis ball gun for my dog

How does your dog aim it?
by Anatine Duo
Fri Feb 11, 2022 12:33 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Semi-Automatic Airsoft Pistol
Replies: 8
Views: 2529

Re: Semi-Automatic Airsoft Pistol

I like the look
by Anatine Duo
Sun Dec 19, 2021 8:44 am
Forum: Ammo & Parts
Topic: Does Ice Bullets Actually Work?
Replies: 7
Views: 2631

Re: Does Ice Bullets Actually Work?

I've pondered this for decades. Daily highs are below freezing here for four months, so keeping an ice projectile solid is not a problem, though I bet -40 ice is stronger than barely frozen. Sabot would help. Smoothbore would help. Potatoes are about the same density as ice and we have all seen the ...