How to Flawlessly Shim Your Airsoft Gearbox
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- Опубліковано 6 вер 2024
- Inside the Gearbox:
The long awaited video: How to Flawlessly Shim Your Airsoft Gearbox.
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If you don’t mind me asking, how do you keep the bushings in place? I’ve been working on my Scar-L and the bushings keep falling out when I take the gearbox apart.
@@coltonprivettehorn2798 little dab of gorilla super glue works great, there's also blue medium strength loctite.
What do you do if your motor raises your bevel so high in the gearbox that two 0.5 and a 0.3 could fit under it
Aegs yes but polorstars have way less parts
@@coltonprivettehorn2798 loctite 401
i've been an airsofter and diy-fixer for my airsofting-friends and myself for 13 years. only recently started looking at shimming, after having destroyed a v2. A gearbox has no secrets for me, i've seen most types of shells, mechanical/electrical triggers, etc.... i could almost asemble a gearbox blindfolded and though long, this video is saved on my computer.
your way of explaining is very thorough and even for someone who's main language isnt english, very clear.
no doubt on what to do and how to do it.
and, as an added bonus, i showed one of my airsoft-friends this, and he shimmed his first gearbox near-perfectly!
i've taken it to myself to, from now on, shim all gearboxes that i unscrew :-)
in all my years i've never tried it because of the 'oh my god shimming is something that takes days!' responds.
yesterday i shimmed my 11th gearbox, clocked in at 22 minutes.
thanks man!
a very happy airsofter from belgium
Teach me?
@@live0and0let0die21 Watch the video maybe
Very good explained, you are a good teacher. Valuable video
I really like the methodical and almost scientific approach of your videos. Completely no-nonsense, in depth explanations of general rules and when and why they apply or don't, mythbusting sprinkled on top - it's just great! I don't mind taking 30 minutes to watch a video when it pays off. :)
Airsoft guns are more complicated than actual firearms. Change my Mind lmao.
They are... far more complicated than paintball guns for sure haha.
Raging Demon312 yeah Bc the most complex part of a firearm is the cartage
not really. since recoil and pressure arent a thing with airsoft. And no need to lock the chamber before firing.
all an airsoft chamber does is move back and forth, it doesn't rotate into a lock.
If you change your mind just because it is complicated, it wasn’t for you in the first place.
That's because airsoft guns are toys that are comparably lazily designed. It's hard to make a simple design with few parts. The more parts you have, the likelier it is that any of them fail. It's not a big deal if an airsoft gun fails, but people die when real steel fails, so they have to make sure the design is as simple and reliable as possible.
As an undergrad in Mechanical Engineering Technology (MET.) I applaud your ability to communicate terminologies both scientific and unique-to-industry efficiently to an audience with little to zero knowledge on the topic. This is a fantastic skill to have, not to mention your mechanical ability, as well, which astounds me. You speak with experience and that in itself provides confidence when anyone goes to attempt shimming themselves. Concepts may *seem* simple to us knowledgeable in STEM subjects, but the hardest part is communicating that to customers who have *zero* knowledge and it is up to us to dumb it down enough to where it is digestible to the average consumer. You did that, sir. I applaud you ten times more for the 33 minutes and 48 seconds of free content filled with valuable information.
I keep coming back to this because i shim like once a year. Everytime crisp gearbox like no other thank you sir!
fuck me, if you do it every year why do you need to keep coming back. daft sod.
@@ryandunn2953 it was a way of expressing the quality of the info. I don’t fully watch it yearly just a quick check up.
Immaturity at its best. Enjoy your day
I think its called a spur gear because it looks like a spur on a cowboy boot
ding ding
other way man
Long video, I know, guys, but explaining and showing how to perfectly shim a gearbox takes a long time.
TheAirsoftTech
No problem! The longer, the better! No detail is too small! 😃
Did you ever consider shimming the motor axis to have less space to move around? That is the space under the motor's spring.
Also, could you elaborate a bit on the use of helical gears?
TheAirsoftTech you did an amazing job covering this
munchiemooch cookies to get the longest life out of your internals. shimming equals tons of positive things for the gearbox
If it's not shimmed correctly the gears are able to oscillate and don't mesh correctly rubbing together drastically increasing wear. Also the increased friction creates heat and slows the gear box down and is noisy vs smooth and quiet. Overshimming means too tight and strain on the motor, battery, and other parts of the gearbox which could lead to shorts.
Another tip, some grips may press on to bevel gear bushings. If that happens that can potentially push the pushing to far in and it may hit the sector gear. I destroyed a set of brass bushings that way, If you have steel bushings your spur gear might take the fall instead. If your grip presses onto the bushings file it down on the inside to make room for the bushings.
Your videos are hands down the hold standard when it comes to working on airsoft guns. Please keep up the exceptional work.
Hands down, the best video about this topic. Zero nonsense, it's length didn't bother me at all, because is profound and understanding something always pays off... bravo!
Never not amazes me how much airsoft upgrading is a hobby all on its own.
This is how long it needs to be for a genuinely comprehensive tutorial that is easy to follow and copy the results perfectly.
This video should be mandatory to watch for all AEG users. Amazing stuff!
Would you ever consider doing a how to r hop? Not sure how difficult a video that would be to make
5 years later and still going strong. My only complaint is that this is an instruction on shimming and you never showed any shimming. You showed before and after. You said whether it was top or bottom of the gear but it would have been nice to just show the placement so there is no confusion. Other than that well done and explained.
The best video about shimming that I can find on the internet. I play gel blasters instead of bb airsoft guns, but the gel blaster gearbox has the same mechanism
Ive tried shimming and it took me literally 6 hours. I was taking my time and paying very close attention to what i was doing, following all the rules jn this video. I also made sure each gear had 60 to 70% contact and it was flawless, i could spin it freely when screwed together. The gun over heated after a couple shots tho, and my pinion is fixed into the bevel gear so it meshes perfectly together, not to far in not to far out. Idk. Shimming is the only thing keepin me from teching on my guns.
the receiver can slightly alter positioning of the motor same with the grip can push in on the bushings or bearing causing them to press against the bevel gear
If you have a dental pick set I would recommend putting your grip on with the receiver in place with the motor out. Take your pick and fi d the Interface between the grip and gearbox. If you can't get your pick between the two, your good. But if it slides in one side you should take down the sides of the grip where it touches the receiver.
Take a shot of vodka for every time he says apparatus and variable.
OPERATOR SPECTRE I'm hammered
@@willspencer8694 And I'm dead
I still find myself coming back to this vid for refreshers.
This is, hands down the best instruction video i have ever seen on youtube, on any topic, im impressed! Im not even into airsoft, i just enjoyed your calm and precise way to show and explain.... i am a toolmaker, and not easy impressed by tech vids normally :)
Holy **** after watching the video and having replayed certain parts over and over to get the job done PERFECT, the results were FLAWLESS. The gears are sooooo so silent, thank you so much! Do NOT take shortcuts with this video, follow every step and make sure your gun is perfect and my God the results are beautiful. Thank you!
Thanks brother, I took my gear box apart and step by step your instructions. My gun preforms so much better.. mad props bud. BTW, that was my first time shimming. Took me 1 hour.
could you also upload a video where you show how to glue/epoxy the bushings/bearings properly?
Yes! Your long-awaited shimming tutorial! Thanks for the Christmas gift, Ryan! 😊
Now i am motivated enough to shim my new g&g mp5 a4 gearbox after rewiring it
How’d it go?
@@bloogaming8827yea, how did it go?
Hey man you have excellent content! I work at a local Airsoft and Paintball Shop. I constantly refer customers interested in teching on AEG's to this video. Thank You for being an awesome ambassador of our sport!
by far the best video on how to shims... really going to use this method!
Sht Fx I agree!
I have tried the shimming like 4 times but didnt ended as i would wanted..... but with this tutorial im gonna do another try and hope for the best wish me luck boys💪
Thank you for this awesome Tutorial. I bought an E&L AK-74 that already came with some tuning parts like nozzle, upgraded Vario piston with adjustable muzzle energy from 1,3-1,6 Joules, tuning, stainless steel tuning barrel and CNC machined Hop Up Unit. I ordered an LCT Slim Torque Motor for this airsoft and with your video I can install the motor myself and even shim it perfectly! Thank you very much for the effort!
Great video. Should mention proper lubricants recommended as well. I've seen all kinds of weird stuff in client guns, and sometimes nothing at all.
First time doing a shim job while changing the spur gear that broke in my g&g. Your video did help me alot and was clear. Thanks for the great content with straight explaning
Prometheus shims are stainless steel and very distinctive in sizes
the tech hasn’t responded to my emails, so I came searching for info on how to shim. this was so very helpful and i can’t wait to apply it to my upgrading!
Thank you so much for making this video. I am really into airsoft and want the maximum performance from my gun. I have always wondered what shimming is and how to do it, and this video helped me so much. Now my gun is operating much better and I can tell a notable difference between before and after. Thank you so much!!!!!
I believe it's called setting "gear mesh" when you're working on the spacing between the bevel gear and the pinion gear. Just throwing that out there. At least that's what you call it when working on the exact same thing in the rear end gears of a vehicle.
I am very greatful for this tutorial. I play airsoft for live 13 years now, and never was a tech guy myself, but I knew right person to fine tune my toys. For the next peashooter I'm planning to tune it myself finally, and shimming always worried me in such scenario. Now, with propper understanding and plain explanation, I think I'll manage to do it myself, huge thanks!
The deal with the pistol grip is why i really hate working on m4s.
v3 gearboxes ftw
Dude, thank you so much. I've been hunting all over UA-cam for good, concise tech videos, and have grown tired of finding a bunch of high school kids trying to explain what they don't actually know. You are very knowledgeable and well spoken, this was incredibly helpful. I'm subscribing. Please keep the tech videos coming!!! Give us all you've got!!! And to second another poster...R-HOP....!!!!
May be called a spur gear because it resembles a spur. If you are not sure what a spur is look it up. It attaches to a boot and is used to “spur” a horse. Which encourages them to respond to using your heel to press into them to get them to move. They aren’t used much anymore, at least I have never used them.
started watching without even knowing what shimming even is, and now that im done watching i feel confident enough that i could do it myself.
Great video!
Finally!! I've been waiting AGES for a new one from you man.
Chrid Boi
It's a Christmas miracle! 😝
Yeah, about 7 months, I think! No worries though, I think he hasn't been able to do more videos as of late because of his intense school work. At least for the holidays he might hopefully be on full-throttle for more tutorials and such! 😃
I literally needed this video yesterday lol. Just finished shimming and it's all good but I need to shave the grip down/order a new one and shave that one down. It sounds good though and performs very very well so I might leave it for a little while. Looking at the KWA ERG anyway so I'll probably dump all my resources into that.
MERRY CHRISTMAS
Very helpful, very detailed. Im a mechanic and the procedure is kind of like adjusting a differential so i went with that logic and it worked wonders!
Thanks for this video. I've successfully shinmed my first gearbox. (ICS CXP Split).
You give lots of extra info and advice. You are easy to follow too.
Thank you.
Great video, noob here managed to shim my new retro box mint. well explained and all made perfect sense so gained a good understanding of the you work in the order that you do.
Man this dudes got his shit in order
Dude, this is such a great and informative demonstration! I've been doin it for years and I still learned a bunch from you. Thanks for sharing
This information took 30 seconds to find...
“Generally, when meshing pair of gears, the smaller gear is called a pinion gear. Also, it refers to the cylindrical gear that meshes with a rack in a rack-and-pinion mechanism which transforms rotational motion to linear motion.“
“Spur gears can be used to increase or decrease the torque, or power, of a given object.”
“A plain bearing, also known as a bushing, is a mechanical element used to reduce friction between rotating shafts and stationary support members.”
I didn’t know how to shim before this video and now I do thank you brother
Amazing video dude. You are the best airsoft tech on youtube. You explain stuff flawlessly. Thank you.
One question ! I have a fair amount of experience myself of working on guns and gearboxes, but now I want to do a DSG build. I want to use PDI 375mm 6.08 steel barrel. I'm looking for best trigger response (useing ASCU gen 4 and Super Shooter 14:1 gears) My question is about the barrel. Can I use such "long" barrel in DSG build ? Some say that it must be as short as 229 mm. Will be glad if you response. Cheers
300mm max inner barrel works best for DSG builds it makes for good air volume with only using half the cylinder space, i tried a 455mm (AK47) and 509mm (M16) it just wasn't working in either very well, couldn't get a decent FPS and range etc was rather poor due to air volume vs barrel length.
You also can put a shim behind the gearbox and the receiver to get the right degrees before screwing down your pistol grip
Another excellent video.
The Spur gear can be called that because it looks like a Spur.
It can be called a Step gear because it has a step on it, to step-up the torque.
All of the gears use spur cut teeth (vertically cut) so I suppose calling it a Step gear would be more technically correct as that differentiates it based on a unique characteristic :-)
Really appreciate this video. Spent an hour and a half shimming my gear box and this was my first time. And now it is running flawlessly. I thought it was my motor but it was not shimmed properly from the manufacturer it was way too tight. I had a shim left over from the factory shims that were installed. Also was able to get a much better air seal from all your other videos. Thanks.
This was really helpful and allowed me to fix a lot of problems on my gun. Thanks for making this video to help out new airsoft players get into teching. Everyone I've talked to out at the field or online talk about shimming like its some esoteric artform that is nigh impossible for people to do themselves and it scares a lot of people off from even attempting or looking into how to do it.
You've earned my like/sub and I can't wait to dive into the rest of your content. Thanks again!
This is true, shimming is 90% patience really.
Thanks to your vids man !! I opened my gear box the first time and everything went perfectly!! Thanks again
2021 and I am learning from you. That’s the best part of it.
V3 gearboxes don't have issues with motor spacing as the motor is mounted and screwed directly into the gearbox. The motor height is still adjustable and will need to be adjusted, however.
Something else you should do if you're running a standard cast gearbox for a little more efficiency is to polish the piston tracks
the best video so far on how to shim a gearbox, now my gearbox runs smooth as silk, thx :)
Hi, I just wanted to say thanks for these videos, I just put together my first V3 gearbox while watching at least 5 of your tutorials. It works flawlessly. You're awesome!
Yours is the third video I watched on shimming a gearbox and bro you nailed it! Completely understand it great job keep it going
I absolutely LOVE how extensive and comprehensive this video is!! I would be extremely happy if you would follow fashion for all other tech subjects like, shimming!!
That empty/free space between gears, is called “backlash” and you want a little bit of that 😊
Even to this day i still go back and watch this when it's time to fix the gun
Best explanation of how to shim on UA-cam
Bevel and spur gear spin just fine without the sector gear, but installing the sector results in the gears being extremely hard to spin once the shell is screwed together, regardless of shimming. Bushings and axles are fine and the sector is not making contact with the spur gear, either.
That full auto is really something!
Great video, i want to upgrade my internals on my G&G ump. I was worried at first because of shimming, but you put my mind at rest. Thank you for taking the time to make such a detailed video, thumbs up.
Haven’t ever even touched an air soft gun. Still watched the whole thing.👍
Bro your knowledge is crazy , actually helped me so much it’s not even funny so detailed and the explaining was to a tee.
Thank you! This guide helped me a lot! It's the best shimming guide in YT.
Although it’s common name is spur gear the step gear is called as such because it steps up or steps down the gear ratio to my understanding.
ngl, shimming looks kinda easy. I know for some people it looks super complicated, but to me it looks like you’re simply using the shims to move your gears so they contact each other efficiently. Ex if your spur gear has too many shims it will be to high, and the teeth will scrape on the body of the bevel gear. Therefore wearing down the body of the bevel gear, and wearing down the teeth on your spur gear. Causing them to strip or break. TheAirsoftTech please correct me if I’m wrong.
As a machinist. The step gear is correctly named single step gear. It only has one step. A sper gear is another name for a cog. It dosnt have differential of rotation influence within the gear.
Something cool about the version 3 that you don't need to screenshot. you just use that top plate and the motor cage
If you are using a aftermarket grip keep in mind you gearbox will slightly wiggle if you shave the grip down so it's not touching the receiver.
That's right about sound shimming!
I use SHS 100:300 Ultra Torque Up Gears with SHS High Tourque Motor. I shimmed this setup perfectly, but sounds of this setup is very, ekhm... Interesting. It's sounds really strange, but the most important - 500 FPS and no any issues. Thank you for this brilliant tutorial.
congrats you just got kicked out of airsoft for disobey'ing the velocity limit. 350 fps on most fields.
why not 500 fps? well the object is to hit the person not seriously injure him/her.
Hey Mr TaT you make all of this seem easy, having wrecked a gear box or two I know it is anything BUT thaty! You know what yu are talking about & your knowledge is spot on, I'm thinking unless you own the company or something you might be somewhat under-employed - expertise and the ability to convey ditto are rare skills and priceless, it (ALMOST) makes we want to tear into some of mine (S & T sterling, TM, Well and JG Scorp, Matrix MP40, Snow wolf M1938, Cyma AK74 U.) and the sensible part of me says leave it alone until something breaks and I cannot get out of fixing it
Old but good video, stop apologizing for giving out good info ya wierdo. Happily watched it to the end and was glad it was thorough.
😂 ain’t no body got time for this! One my gun breaks I sell it as parts and just get a new one!
Wow this Crazy Sound ❤️
Very nice video. It is not to long at all. But M4 and AK platforms are the most common replicas we all use. I would really like to see how shimming and other tech stuff looks like on some of the other platforms,and what are the compatibility issues. Like say Version 1 gearbox,or version 6,or maybe M249 or SVD gearbox. I know you have probably done most of the known stuff out there.
Sounds a lot like putting together a differential just on a smaller scale
Парень Молодец! Отлично всё объясняет и показывает, что самое главное! Нельзя чтобы подшипники прокручивались в посадочных местах. Шимминг надо начинает от присоединённого мотора в рамке(Гир3) или ручке(гир2) и идти к поршню! Надо спиливать зуб после стартового и ещё и второй тоже!!!
Thank you for this.. you explanation on your shim method is straight forward and to the tee.. thank you
thx for all knowledge you show here ... i will use this to shim my V3 mechbox at UAR after i get all parts to upgrade (NBU, 100:300 gears, INFINITY CNC U-18000 motor and shiming washers of course :D )
I always heard people say it's some kind of sorcery, but seeing exactly how it is to be shimmed, it doesn't seem bad at all. I'm giving this a go on some replicas! Thanks for the video man! Subscribed.
Yep great video. Experienced with airsoft but didn't understand shimming or its purpose. Now I do, thanks.
One thing you didn’t bring up in this video (and I understand it’s from seven years ago, maybe you could mention it in an updated video?) is shimming the motor tower into the receiver hole so as to achieve a slip fit.
This is similar to how solid axles in cars and trucks are rebuilt. I’m surprised to see how rudimentary the gears are. I bet there could be a lot of improvements made in strength if you used helical gears or spiral bevel gears instead of just spur gears. Spur gears are generally (at least in the automotive world) easier and cheaper to make than helical gears or spiral bevel gears, but it is quite rare to find them in modern cars. Spiral bevel gears would however have to have different “bushings” though. They create axial thrust so they use thrust bearings, but on a scale this small I doubt you’d have to make it that complex
Edit: Also using helical gears would not only make the gears stronger but also quieter. I’d recommend maybe using some kind of grease to lubricate between the bushing and the gear. It would make the bushing last longer and create less heat as well. I’d recommend white lithium grease. I put that shit on everything. It’s petroleum based so it has long-term lubrication, it doesn’t drip or run so it won’t get flung around everywhere, and it’s typically used for shit that has a load bearing on it. You can get a little tube of it or do what I did and get a quart size tub of it.
This is fucking AWESOME. You are a damn saint for putting all this great information on the web. THANK YOU for your efforts. They are appreciated.
Than you so much I’m about to do my first ground up build and this and more of your videos are going to help so much
Jesus Christ, you’re an amazing teacher.
don't apologize, its beautiful explanation
This video saved my AEG's life
Great video. Excellent explanation of the why, and how things work, not just what to do.
“If your a beginner shimming going to take you about 2 hours” meanwhile me on my 19th hour attempting to shim the spur gear and still hearing demonic screeching noises when I test the movement
I'VE REALLY MISSED YOU! Happy to see your videos again and hoping the followings are not so long awaited
More than an awesome job. Hands down, the best on youtube. Great communication and detail. Appreciate it!
Thank you. Helps me on my Techie journey.