Search found 1000 matches

by hectmarr
Thu Sep 29, 2022 6:01 pm
Forum: General How-To & Discussion
Topic: Short question topic
Replies: 1496
Views: 281668

Re: Short question topic

Same thing can happen easier with oxygen tanks, but I probably don't have to sit down and do the chemistry to see how much of a few grams of petroleum grease can do in a sealed oxygen rich environment, even if it is an HPA tank. :P No, numbers are not required. With the photos, for me, it is more t...
by hectmarr
Thu Sep 29, 2022 10:57 am
Forum: General How-To & Discussion
Topic: Short question topic
Replies: 1496
Views: 281668

Re: Short question topic

Looking at info on HPA canisters on the web, I came across this... Apparently I lubricate the threads of the carbon fiber paintball canister with petroleum-derived OIL and not silicone...terrible!
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by hectmarr
Fri Sep 23, 2022 4:15 pm
Forum: Hybrid Cannons
Topic: Small semi automatic hybrid project
Replies: 127
Views: 48215

Re: Small semi automatic hybrid project

I share a home video of the firing test of the "LB - VI" semi-automatic pellet launcher. :) The bb's gas loading drive works perfectly, with the appropriate modifications that I invented for it. It fires 6.35mm steel bb`s, and can hold 11 in the ammunition tube. The feed works by gravity, and has 5....
by hectmarr
Thu Sep 22, 2022 11:00 am
Forum: Hybrid Cannons
Topic: Single-pump handgun
Replies: 7
Views: 301

Re: Single-pump handgun

An idea that can be used is embodied in a very low-power compressed air gun, which was very popular around here a few decades ago. To compress the spring, you have to rest the barrel of the gun against a hard surface, floor. The main advantage is that you can use almost your entire body weight to ge...
by hectmarr
Wed Sep 21, 2022 5:03 pm
Forum: Hybrid Cannons
Topic: Single-pump handgun
Replies: 7
Views: 301

Re: Single-pump handgun

Very nicely done, I remember we had talked about this configuration here and you've implemented it beautifully as always :D I love the butane lighter incorporated into the grip for filling and from your video operation seems extremely smooth. The gun is set for approximately 50% compression comfort...
by hectmarr
Mon Sep 19, 2022 7:26 pm
Forum: Hybrid Cannons
Topic: Single-pump handgun
Replies: 7
Views: 301

Re: Single-pump handgun

It is possible to increase the output energy by at least 30%, because it is not very hard to compress, (about 9 - 10 kg), but since the objective is to mark the objective, only that, I have decided that the energy does not exceed that, and not too hard to compress, I mean comfortable to operate. Tha...
by hectmarr
Mon Sep 19, 2022 4:10 pm
Forum: Hybrid Cannons
Topic: Single-pump handgun
Replies: 7
Views: 301

Re: Single-pump handgun

Small video that shows the operation of this short weapon.

by hectmarr
Sat Sep 17, 2022 8:02 pm
Forum: Hybrid Cannons
Topic: Single-pump handgun
Replies: 7
Views: 301

Single-pump handgun

New design and prototype of the single-pump handgun, the "Plink .25". It shoots 6.35 mm steel bb's, because I'm interested in reusing ammunition. There is no point in wasting lead, (more expensive), on this weapon designed for plinking, simply. The pre-compression pressure is 6X and it can go throug...
by hectmarr
Tue Aug 23, 2022 9:04 pm
Forum: Hybrid Cannons
Topic: Single pumping hybrid, "Strong Boy"
Replies: 55
Views: 25625

Re: Single pumping hybrid, "Strong Boy"

Here some photos of the "monster" that works very well! :D It is unfortunate that it only compresses at 3 bar because the compression cylinder that I used has an internal diameter of 26 mm, which is a lot to generate without any lever, more pressure. What's nice is that you can shoot on repeat and i...
by hectmarr
Tue Aug 23, 2022 8:06 pm
Forum: Hybrid Cannons
Topic: Single pumping hybrid, "Strong Boy"
Replies: 55
Views: 25625

Re: Single pumping hybrid, "Strong Boy"

LBC, sistema carga bolillas acero .25 (2).png Upgrading the single-pump gun. I'm trying to build the drawing. It has associated to what is in the drawing, a loading system for 6.35 mm bb's to make it a repetition weapon 8-) I'm working on a rough prototype to test the concept. The goal is for it to...
by hectmarr
Sun Aug 14, 2022 4:03 pm
Forum: Hybrid Cannons
Topic: Hybrid pumped weapon project
Replies: 19
Views: 3627

Re: Hybrid pumped weapon project

Ok! we are "the prophets" (of loud, hole-making fun and mischief) :evil: It happens that if you don't hunt animals with these air guns, it's a boring and sterile hobby of death. Experimentation and shared learning is essential. For the rest, it is certain that if you increase the pre-compression pre...
by hectmarr
Thu Aug 11, 2022 11:09 am
Forum: Hybrid Cannons
Topic: Hybrid pumped weapon project
Replies: 19
Views: 3627

Re: Hybrid pumped weapon project

I did a test at 11X with a 16g .22 pellet and three disks, as Jack suggested. He drilled into an old 1mm stainless steel military pan and the noise is quite loud. The pellet seems to have penetrated through, but it was useless to find traces...The damage is in the first photo. Orificio acero inox. 1...
by hectmarr
Wed Aug 10, 2022 10:47 am
Forum: Combustion Cannons
Topic: How do you get consistent performance out of a "cheap" cannon?
Replies: 13
Views: 1811

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

CHEAP, UGLY AND FUNCTIONAL! :) There is a caveat in that "pretty is as pretty does", so when something is functional, there is a certain beauty in it regardless of its aesthetic attributes. If you're right. There is an aesthetic of the function, which is independent of the aesthetic itself, (easier...
by hectmarr
Wed Aug 10, 2022 10:16 am
Forum: Hybrid Cannons
Topic: Hybrid pumped weapon project
Replies: 19
Views: 3627

Re: Hybrid pumped weapon project

Oh yeah !! it's the same... Keep in mind that your post you name here is my bible on this. I not only remember it, I have it complete in a word, on my pc and on a DVD... It is exactly the same as what you made, I only made it in the form of a weapon to be able to shoot and aim, with the air pump inc...
by hectmarr
Wed Aug 10, 2022 9:07 am
Forum: Combustion Cannons
Topic: How do you get consistent performance out of a "cheap" cannon?
Replies: 13
Views: 1811

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

I share this point of view, CHEAP, UGLY AND FUNCTIONAL! :)