Search found 972 matches

by hectmarr
Thu Jun 16, 2022 10:34 am
Forum: Hybrid Cannons
Topic: Hybrid pumped weapon project
Replies: 10
Views: 658

Re: Hybrid pumped weapon project

I've tried nail polish too, but it messes up the barrel a bit. The concealer seems to work very well, and it dries very quickly. I have tried (photo), painting the entire pellet, only the skirt, and one or two coats of corrector. What works best is a single coat of corrector and only on the skirt of...
by hectmarr
Thu Jun 16, 2022 9:40 am
Forum: Hybrid Cannons
Topic: Hybrid pumped weapon project
Replies: 10
Views: 658

Re: Hybrid pumped weapon project

20220616_115007.jpg Speaking of this weapon, this is version "2". The number "1", it is valveless... it does not have any valve. I am trying to seal the chamber directly with the pellet in the barrel. The pellet is "prepared", it has a bit of spelling corrector to increase the seal, (it's perfect),...
by hectmarr
Thu Jun 16, 2022 9:33 am
Forum: Hybrid Cannons
Topic: Hybrid pumped weapon project
Replies: 10
Views: 658

Re: Hybrid pumped weapon project

Not in this case because the gun is a bit heavy about 3.4kg... I used 3mm tri-ply wood with a layer of thin fiberglass on the inner side, and screwed to the metal. In other models yes, I have used hard balsa because the weapon is very light.
by hectmarr
Thu Jun 16, 2022 9:23 am
Forum: Hybrid Cannons
Topic: Hybrid pumped weapon project
Replies: 10
Views: 658

Re: Hybrid pumped weapon project

Very clean work, nice "proper" evolution after all that prototyping... I like the markings too, although perhaps it's more of a Fuerza Aerea (+Butanea) Argentina sort of equipment :D Hi Jack!! Oh yes, I'm going to change the brand as you suggest :) . Thank you for viewing my work. A greeting for you!
by hectmarr
Mon May 09, 2022 9:23 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Semi-automatic airsoft gun, very simple
Replies: 4
Views: 1663

Re: Semi-automatic airsoft gun, very simple

It was more or less like that, like in the drawing.
carga bb`s.png
by hectmarr
Sat May 07, 2022 10:45 am
Forum: Hybrid Cannons
Topic: Hybrid pumped weapon project
Replies: 10
Views: 658

Re: Armadas 1500 II (hybrid pump rifle)

Thank you so much guys! :)
by hectmarr
Sat Apr 30, 2022 6:19 pm
Forum: Hybrid Cannons
Topic: Hybrid pumped weapon project
Replies: 10
Views: 658

Hybrid pumped weapon project

This is a project called "Armadas 1500 II". It is a weapon that works with an integrated air pump, it is a single shot, hybrid that precompresses at 8X - 10X. The firing barrel is with 12 microgrooves, caliber .25 and fires common pellets. The inverted bolt is made of 1045 steel, the combustion cham...
by hectmarr
Sat Apr 30, 2022 9:38 am
Forum: Hybrid Cannons
Topic: Small semi automatic hybrid project
Replies: 126
Views: 41137

Re: Small semi automatic hybrid project

I thought it doesn't last much use, but it works very well, up to 10 bar. I'm about to buy the 5-way, two-position one to shrink everything a bit.
by hectmarr
Thu Apr 28, 2022 4:22 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Convert a Gas refill cylinder to an air cylinder?
Replies: 7
Views: 526

Re: Convert a Gas refill cylinder to an air cylinder?

You can adapt this way. If you use only one one-way valve for charging and exhaust, one end of the long inner tube must be perfectly capped and secured. You can assemble everything outside, and then seal the inner tube with epoxy. In my opinion, if you secure the valve well with a pin, it is safer t...
by hectmarr
Thu Apr 28, 2022 12:26 pm
Forum: Hybrid Cannons
Topic: Small semi automatic hybrid project
Replies: 126
Views: 41137

Re: Small semi automatic hybrid project

Sistema carga de munición accionado por gases, diagrama, (1).gif The problem with the automatic loading of balls is that the spring of the tube that houses the ammunition does not survive more than two or three shots because when it opens, the pressure of the explosion expels the bb`s towards the s...
by hectmarr
Thu Apr 28, 2022 11:22 am
Forum: Hybrid Cannons
Topic: Small semi automatic hybrid project
Replies: 126
Views: 41137

Re: Small semi automatic hybrid project

Updating of this project, in this case, the LB VI, (lansa bolillas 6). :) LB VI.JPG This prototype is the one that I recently built, which has several important simplifications with respect to the previous one, the first one. Shoots 5X, .25 caliber steel bbs. The loading in the chamber of the ammuni...
by hectmarr
Sun Apr 17, 2022 8:10 am
Forum: BB, Airsoft, and Pellet Guns
Topic: Semi-Automatic Airsoft Pistol
Replies: 8
Views: 1700

Re: Semi-Automatic Airsoft Pistol

it looks very cute. Nice job!
by hectmarr
Wed Nov 17, 2021 5:23 pm
Forum: Pneumatic Cannons
Topic: Designing a inline piston pressure regulator - Fluid statics math model
Replies: 19
Views: 3844

Re: Designing a inline piston pressure regulator - Fluid statics math model

This regulator was designed to be manufactured with inexpensive precast bronze parts, available anywhere. Does not use lathe machining for metal. The two grooves for the two o'rings are made on the domestic bench drilling machine and a small file. It can be put together in a couple of hours ... What...
by hectmarr
Mon Nov 15, 2021 4:14 pm
Forum: Pneumatic Cannons
Topic: Designing a inline piston pressure regulator - Fluid statics math model
Replies: 19
Views: 3844

Re: Designing a inline piston pressure regulator - Fluid statics math model

It is not so difficult to make the air passage channel. I drilled a hole in the body of the regulator "A" and then made a slot with the Dremel, as the drawing shows, but without breaking the inside of the body, where the piston moves. In this way, there is a conduit through which air can pass betwee...