How to Modify Lego Pneumatic Switches/Valves for LPE's - Friction Decrease - Ultimate LPE Guide EP3

[@GreenGeckoLegoTechnicWorkshop]

Hello Everyone. I am now back to uploading New Content, Stay Tuned for a New MKII V8 LPE Video this Week. Sorry about pixel glitches in this video, i recently upgraded my whole setup to 4K.

[@unitedtechnology1424]

Green Gecko Lego Technic Workshop Man you make the best video!

[@GreenGeckoLegoTechnicWorkshop]

Who's wants to see a Video Series on Developing a Working Turbo Charged LPE? Yes, i figured out how to build a Working Lego Pneumatic Turbo

[@5upermini555]

Green Gecko Lego Technic Workshop yeah, that would be nice!

[@antoineddp]

yes !

[@KingArttu]

Yes !!

[@jordansharwood]

Green Gecko Lego Technic Workshop Absolutely that would be awesome to see!

[@speedracer123222]

I want to see it :(

[@legomasterbuilder9118]

Well thanks for the tuto, I really needed help lubing my switches for my LPE👌🏻

[@GreenGeckoLegoTechnicWorkshop]

No problem

[@tomsko863]

Hey man, just for your information, nothing on an industrial scale is "glued" if it can be helped. What you had there were "welds". Lots of plastic parts are welded. Either vibration, sonic or IR welded. Not having one of the parts myself I can only guess, but the back plate was either IR or Sonic welded (probably sonic). Look into it and tell me which you think it is. Keep on making these videos, they're great!

[@GreenGeckoLegoTechnicWorkshop]

That's very Interesting, i will have a look to see what it is. I would think it would be Sonic welded from looking at the switch. Thanks

[@hunter7476]

yay your back cant wait

[@randomuser617]

Man these cuts looks so clean, even tho mine looks dirtier just because I used a cutter and 2 small knives, I didn’t have that kind of cutter.

[@unitedtechnology1424]

Can't wait to see your new V8 :D.Btw,I've developed a working radial engine and I'm also considering making a turbofan for plane.

[@GreenGeckoLegoTechnicWorkshop]

Nice, i am developing a Tubro for a LPE. From the tests have done, it sounds realistic

[@unitedtechnology1424]

Green Gecko Lego Technic Workshop great.Looking forward to your turbo.I love its sound:D

[@calebschultz9935]

Should the switch be zero resistant in order to work?

[@EagleAirOne]

I'm guessing the gluing parts arent necessary for the old style switches?

[@wildestthornberry3349]

What’s the soundtrack to this video?

[@jacobhertz8044]

Will a utility knife cut as smoothly as the hobby knife?

[@brickmotorcyclefan]

Such a great video! Great channel... I subbed!

[@GreenGeckoLegoTechnicWorkshop]

Thanks, have you seen my rc motorcycle? you might be interested in that...

[@swagmoney9210]

can you drill the ports without opening the switch?

[@clementpoon120]

Is it okay to not glue it back?

[@johnlennon_38special]

Awesome video! By the way what shock oil weight are you using?

[@GreenGeckoLegoTechnicWorkshop]

Thanks, Its 450 cst or 35 weight oil

[@johnlennon_38special]

@@GreenGeckoLegoTechnicWorkshop thank you!

[@gabrielgallian2219]

Could you please tell me what kind of glue you used? I just want to know before I open them and don’t know what to do with it

[@GreenGeckoLegoTechnicWorkshop]

CA Glue, if you want to buy them already modified I sell them on my Store here: www.greengeckoworkshop.com/products/modified-lego-pneumatic-switch-new-style

[@kingsummit5310]

I know this video was published a while ago, but I am designing an inline 2 with the XL cylinders because those are the only cylinders I had lying around. Anyways, I was wondering if applying a little bit of acetone would do the trick on the glue points since it melts ABS? For now, I will be using either RC tire glue or super glue. Super glue melts ABS only a little and its a weak bond so it would be temporary. I guess all I'm trying to ask is that do you think there would be a better bond on the backplate if you simply brush a little bit of acetone to the back of the plate? Thanks!

[@GreenGeckoLegoTechnicWorkshop]

Acetone may work, was actually looking into that last week. If you have trouble modifying them, I am selling them pre-modified on my Store too - sellfy.com/green-gecko-workshop/

[@XsizmGamer]

Hello, just a quick question about LPEs. I am designing a v6 with xl cylinders as I have not yet seen it done and I like the challenge and am wondering what kind of crankshaft to use for higher RPMs, the typical 120° crankshaft like an i3 or a flatplane like a v8 but with two cylinders missing. Thanks

[@GreenGeckoLegoTechnicWorkshop]

Hi. You will get no more power from a extra large size lego pneumatic clyinder (this one - www.bricklink.com/v2/catalog/catalogitem.page?id=137815#T=C) if you use the same size crank, as the bore of the cylinder is the same. That's why you don't see any or many LPE's using XL size cylinders, only normal large cylinders and small cylinders. These XL size cylinders only offer a longer stroke, allowing for a bigger crank. This means you will have less RPM and more torque. I would use a normal 120° crankshaft for a inline 3 and just run two pushrods like my V8. Hope that helps, Thanks

[@XsizmGamer]

@@GreenGeckoLegoTechnicWorkshop Thank you for your reply, the medium cylinders are somehow more expensive to buy (with shipping costs) in my country but may be I should think about it. As a side question is there anyway to increase RPMs using the legos, I am thinking something like a mechanical supercharger which further pressurised the air just before going to the cylinders. Could this work? Thank you

[@ManosLC]

Can you do a LPE without modified parts? Please answer!

[@GreenGeckoLegoTechnicWorkshop]

Yes, check out some of my other videos

[@ManosLC]

@@GreenGeckoLegoTechnicWorkshop Can you leave a link?

[@slippie5283]

Can you make a engine without modify the cilinder en the switch

[@GreenGeckoLegoTechnicWorkshop]

Yes. All of my Engines can be ran using non-modified switches and cylinders, apart from my really old 1 cylinder engine without the non-modified flywheel conversion. Thanks

[@ELValenin]

Can I use 20k diff oil too?

[@GreenGeckoLegoTechnicWorkshop]

Yes, that will work fine

[@danielszikszai3816]

What do i do the air is escaping? I applied the silicone oil

[@EagleAirOne]

Might have to reglue

[@_Yoko2137]

hi Is it worth modifying the engine speed control valve (throttle) in this way?

[@GreenGeckoLegoTechnicWorkshop]

Yes it is, LPE's with modified switches perform a lot better. You can buy them from my Store - www.greengeckoworkshop.com/

[@user-lp6qi7bw9s]

Honestly now i think that lego should produce the pneumatics with the "modified" properties

[@GreenGeckoLegoTechnicWorkshop]

Yes it would be great but they haven't yet. I do sell them on my store modified if you need them for an LPE www.greengeckoworkshop.com/

[@MandecoWoT]

Please help me! I did it like in the video but now its not sealed and the air just escapes. What could i have done wrong?

[@danielszikszai3816]

Same problem

[@GreenGeckoLegoTechnicWorkshop]

You may not have applied enough back plate pressure when re-gluing the back plate on, this is a very important step. Sorry for the late reply, i only just saw this

[@victorliu1240]

Will WD40 work if I do not have silicone oil

[@francisc2421]

No it will ruin the seal

[@thatoneweeb4452]

Hey, Green Gecko, do you think you could sell the STOCK pneumatic supplies on Amazon? It would be amazing. Just respond to tell me!

[@GreenGeckoLegoTechnicWorkshop]

Hi, all Lego parts can be bought from bricklink.com including these pneumatics. I have no plans to sell modified switches any time soon, because of the huge work load it would bring. Thanks

[@casbremer7793]

Hallo i am a beginner and i wantend to make a lpe for years but it never works i have tried al sorts of models on KZbin but non of them work for me and i do not really wanne try and modify my switches/pistons what can i do and witch lubricant what soort of lubricant can i use i hope that you could help me i have the standert dark gray switches and the big long pistons (sorry for the english) :)

[@GreenGeckoLegoTechnicWorkshop]

I would recommend building an Engine without Modified Switches first. Nearly all of my LPE's will run without any modified parts, and If they do I have made a Non-modified Version. This Engine here would be a good place to start, its pretty basic and easy to make - kzbin.info/www/bejne/eaS8o6SfgKqpnac . Silicone is the best type of lubricant, just make sure it is plastic safe. Any questions at all, feel free to ask. You can email me here - [e-mail] if that's easier. Thanks, Mark

[@casbremer7793]

Thank you so mutch i hoop you have a lovely day :)

[@casbremer7793]

YES IT WORKS THANK YOU SO MUCH!!!

[@jogumemajoli]

Engines that have a 90° offset (or a V-engine which also has this offfset) of the crankshaft work with unmodified parts because if one switch is in a non-airflow position at least one isnt and can push that switch over

[@letsbricktheworld4213]

Hey sorry for my ignorance but what does LPE stands for ?😅

[@garbon1450]

Lego Pneumatic Engine

[@letsbricktheworld4213]

@@garbon1450 ooooh thanks 👌👍

[@garbon1450]

@@letsbricktheworld4213 no problem

[@GreenGeckoLegoTechnicWorkshop]

Its Lego Pneumatic Engine

[@letsbricktheworld4213]

@@GreenGeckoLegoTechnicWorkshop thanks !

[@nicjgoss7069]

a$$