DSG (part 5) testing O rings, and eliminating vacuum
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- เผยแพร่เมื่อ 20 ก.พ. 2020
- MK V2 gearbox: mkth.com.au/collections/austr...
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If you put food dye in the water it would make it much easier to see, great vid
it crossed my mind.. but I didn't have any food dye.
Cordial? Coke?? Beer??? Pee?!?
@@ZennonDamant wahahaha
another easier alternative..what i did to widen the gap for stock nylon piston is by adding washer in between when screwing the piston head onto the piston
I'm an airsofter and I'm currently watching all of your videos lol Analytical forward thinking and an engineering type mind set is whats needed to work on drive strains and whatnots. Your a smart cat and I enjoy your content!
Keep it up 👍
Very Informative and keep the test apparatus going. Was that the "Vacuumaton 4000"? A coffee to you good Sir.
Did you just invent the best cylinder head on the market??!
Yeah probably, and instead of selling it I put it on the internet for free for everyone. Man I'm dumb.
@@lowguidoschopshop Well hardly anyone has a lathe. I wonder if a FDM or SLA 3D printed one would work.
Do you think eliminating vacuum would benefit Airsoft applications? Increased cycle time maybe?
It's not as important because you can't really suck a BB back into the cylinder. But it would make it more efficient.
having a firearms licience I laughed at these toys to begin with,,,,now we have 3 in the house,,,awesome fun ,,,[get everyone that plays ] a whipper snipper face shield,,eye injuries are forever,,,,thanks for the channell
firearms and gel blasters are two totally different animals. Gel blasters are fun toys that you can tag your mates with. firearms are a completely different thing that really shouldn't even be in the same sentence. I mean I enjoy target shooting, but there is something even more fun about running around in the bush stalking your mates.
Thats good to know. Very cool. Now i know what to do to improve something in my blaster.
Extremely underrated topic! Very interesting video!!
Very interesting professor
Awesome, never though of vacuum being an issue but now you show it, it seems obvious.
You’ll need a different “sized”system to measure vacuum. Make a replica of your manometer but use tubing with a quarter the internal diameter, or maybe less. This will greatly increase the deflection of the meniscus and allow you to accurately measure the vacuum.🤟also standardising the speed of plunger withdrawal will help make it more empirical, but “as fast as you can” is probably ok.
I wonder if that would give more stable fps readings aswell having the exact amount of air every shot in full auto? less the vacuum?
Awesome info mate, any chance you'd know what cylinder head and nozzles fit the orange v2 cyma box?
That is pretty impressive.
That tube test is used for commercial air conditioning
Lovin it
Im lovin it more
On my gen 9 M4a1 I resently installed stage 1 upgrade and found my accuracy has gotten much worse is this normal or is there a problem?
Muy bueno, GRACIAS!. Era mejor rebajar la parte interna del frente que la interna trasera!
i have a blue piston like that, and a green oring on it, but it still cant seal the air when i push it, but the white piston with black oring can do you why, is it the piston problem or the green oring? please help
Essa válvula costuma aquecer muito?
Precisa lubrificar?👍 do Brazil
What's the size of the O-ring
Do you test your compression with the nozzle forward or backwards because you need it sealing the best when nozzle is forward as if it is seated in nozzle
the position of the nozzle is not relevant to the plunger O ring. only the nozzle itself and it's o ring (if it has one)
what you are saying stands true if you want to test the entire seal of the whole system, in which case you not only need the nozzle forward, but you also need to have the T piece and barrel fitted, and test it at the barrel end. as there is equally no point testing the seal with the nozzle forward if the T piece leaks or the barrel leaks. I hope that made sense.
Low Guido's Chop Shop yeah I know that you see a lot of ppl testing the seal of the o ring and that with the nozzle back testing the seal and a lot of the time the nozzle leaks on the cylinder head
@@hellboycustoms8284 yes. but again, that is a problem with the nozzle, not the plunger. if you are testing the plunger alone, (as seen here) the nozzle doesn't need to be forward, backward or even present at all. the seal of the nozzle is irrelevant to this test.
To fix the vacuum problem, I took the standard cylinder head off and put it in the cordless drill and pushed a (I think 3mm) drill bit into the gap that the o ring sits in and slowly shaved it out about half a mm and then I drilled out the face holes one size just to be sure I wasn’t getting any vacuum from there.
None of this is nessasery unless your building a speed build anyway, as long as the oring seals, the nostle seals and the Tpiece seals, then FPS comes down to the spring and the speed comes down to the motor, gears ratios and battery
I forgot to mention to sand the seating surface while the head is still in the drill so that the oring seals perfect again
The oring you used on the standard piston head is too large hence why the vacuum on the return. Can see it is too big quite easily.
I should watch the whole vid before commenting hahaha
Low Guido: making your cheap, shitty stock parts better than aftermarket ones since 2020
Side note: 23:56
".. is a big thing for US"
Us. As in the Gel Blaster community. As in, we should OWN this. Yes, Airsoft is cool, but we don't have it. We should own GelSoft proudly. We have to do some really cool sciencing. I love GelSoft and am proud to be a part of this awesome community..
haha i was watching this intriguing video and was gonna apply the concept to my airsoft dsg, then at very end you said... this is only a big deal for gel blasters and i was like oh oh lmao i dont need to do this then very interesting video though.
It will certainly work on your DSG. It can only mke it better.
yeah the "BB's" we use are made of a polymer like a hard jello. in Australia by law BB's are considered ammunition and therefore airsoft is a firearm (I know it's ridiculous) so we have these "gel blasters" which are kind of like airsoft in operation, but they shoot gel. too much vacuum can actually suck the gel back into the cylinder and gearbox do its really bad for gel blasters. even though solid BB's cannot be sucked back, it's best for efficiency to minimize vacuum anyway.
@@lowguidoschopshop nice wow i cant beleieve they consider bb gun firearm thats funny
@@santoslozano2957 yeah it is. but its also kinda not :(
wouldn't a slightly thinner oring solve that issue aswell?
Yes. But im working with what I have. And what most people have
Brian Jason put the piston head in cordless drill and push a 3 mm drill bit into the ring gap, try this and the back pressure problem is solved
I was going to dislike the video because it shouldn't matter in a build but your testing was very nice so you've got a like👍🏼
Hey Guido loaded a vid from the game but didnt gat any off you sorry bud maybe next time ill send it to you sorry again
Me watching this: very informing
Me looking for mods
finds anti vacuum head
Me: :|
Hey
In the end of the piston rack there is a hole - glue the cylinder head to the rack 👍
I think you're fixating too much about the vacuum. What your model doesn't replicate is that when the piston is being pulled back the nozzle has no BB in it and is open to the barrel. It will therefore suck in air as the piston is drawn back, up to the point that a BB seals nozzle. Bare in mind that the seal the BB creates on the nozzle will be pretty bad, it only creates a good seal once the tappet plate releases the nozzle and the spring returns it in to the rubber bucking. Some nozzles also have a small half circle cut out on the underneath at the barrel end to aid BB positioning, this will also allow in air until the nozzle seats firmly in the bucking. Even though the airflow through the nozzle into the much larger piston will be restricted, it is not completely stopped, so the vacuum created will be negligible.
Sounds like you are talking about airsoft. There's no BBs here and that's why vacuum is important. Vacuum will suck gel back into the cylinder.
@@lowguidoschopshop Sorry my bad, I though "gel" was another inventive bit of Oz slang for BB's :-)
@@blusox78 no it's literally gel. That's how messed up our laws are.