Lego Pneumatic train build... [Dump blog thing]

[Electricsteam]

Just a simple topic to keep all my ideas and thoughts in one place while the slim chance of you guys giving me suggestions will be there....

Anyways....

Day 1. The LDD is slowly shaping up I am rather confused on how people get the leading trailing wheels so close with such detail

The train I will base it on

[Paperballpark]

...the leading trailing wheels...

Erm, do you mean the leading wheels, or the trailing ones?

[Electricsteam]

Erm, do you mean the leading wheels, or the trailing ones?

Both really but I think I have the trailing ones figured out

[Murdoch17]

If it's a Mountain type you want, you might want to look at this model:

i'm not trying to self advertise, by the way. I just think it might help, since it's the same wheel type as the one picture you posted.

[Electricsteam]

Day 2. I made about 20 deep fried oreos and roughly figured out where the pistons are located. Amount of work done today 5% amount of oreos consumed 3

Edit! its 4 am anyone want some fried oreos

Edit edit.

Some gears to make the static wheel no long static

Edited December 8, 2015 by Electricsteam

[Electricsteam]

Day 3 7 PM

It's starting to shape up. I'm not too sure on how to make the front bit look realistic or the back bit... or the boiler bit.... lego is hard

[legonerd54321]

Not too shabby for a rough model!

[Electricsteam]

Hrm Day 4 8:44 pm

I have consumed an outrageous amount of stuffed shells and I have slowly worked out what I want the boiler to look like. It looks a little small at the moment..... Maybe It will look better once I get the fru frus going

Black represent the walkways and blue is the gearing

I'm am still quite uneasy on how this will look. I want to be the best loco I've built to date but it is slowly becoming over whelming. I need to figure out how to get the pipes to fit inside of the boiler, there should be enough room but I cant exactly put it in LDD

Edit

These plate outlined in blue need to have enough support under and over them to not giveway. They are the bricks that are keeping the piston more or less level

Edited December 10, 2015 by Electricsteam

[Electricsteam]

Hey Train Tech is this a good shape for a cheese wedge boiler?

[legoman666]

Hey Train Tech is this a good shape for a cheese wedge boiler?

Why not use the curved 2x slopes?

[Electricsteam]

Why not use the curved 2x slopes?

The wedges give a broader slope Imo. It also opens up better room for detail with pipes railings and what not....

[Electricsteam]

So much work done! The buisness end of the train is done! I THINK I might have a solution for the leading truck but I'm not sure yet! Please oh please guys tell me what you think!!!!

Anyways stay tuned for the next update!

[Murdoch17]

I think it looks good! The front truck should work, based on my knowledge... usually I just order it and blindly hope for the best when I build it. Case in point: I ordered my GM Aerotrain, almost $230 US worth of parts, and I'm not even sure it will work on curves / switches when built. The engine's unique wheel-set is the only thing i'm worried about: it's only been used on the Aerotrain. (one two axle-bogie, plus 1 axle fixed to the other end of the engine)

...Anyway, your model looks awesome. Keep up the good work, and I can't wait to see this engine finished either in LDD or Real Life!

[Electricsteam]

Another update! It's grown! I think this is how long the engine will be. I'm thinking about the tender being more of a display for the pumps, The front half looking like a normal tender to conceal the batterybox and motor and the rest would be a line of the small air pumps..... Eating through batteries seems fun. Anyway to make a truck that hooks up with the 9v rail and powers a large motor?

[Electricsteam]

And it's about finished!

This is my most advanced lego locomotive in terms of build methods in terms of propulsion! It's going to cost me an arm and a leg to get it brick built but it will be worth EVERY penny... (I just need to sell a ton of fried oreos ceramic bowls and or stuff I don't need any more)

Please tell me what you think train tech!

[Electricsteam]

Last update before I move to a new post!

I built about half of the thing so far. Just enough to get the Pneumatics lined out and FUNCTIONAL! and to see what bricks I do need.

It seems like the whole boiler needs to be bricklinked I'm so freaking excited that the engine is working, grip doesn't seem like much of a problem at it's current state.

I'm tired I'm going to take a nap

[legoman666]

Got a video of the pneumatics in action?

Lookin good, making me want to make a pneumatic locomotive of my own.

[Electricsteam]

Got a video of the pneumatics in action?

Lookin good, making me want to make a pneumatic locomotive of my own.

here is a video of the test rig I'll get a video of the half built locomotive when it's not so dark out

[Electricsteam]

Here we go some early pictures of the train brick built. And I was able to dig out my little Minifigure :D

[Man with a hat]

It already looks very impressive. Looking forward to its completion

[LEGO Train 12 Volts]

It looks impressive in real lego! I'm waiting for your next step now!

[Electricsteam]

day 12

No progress has been made I am burried to my neck in boxes full of kitchen items..... We had to spray for roaches not fun! everything is a mess and I lost the train in this seat of canned food and boxes

[Electricsteam]

There a much better render of the train in it's proper colors

[LEGO Train 12 Volts]

I'm just worried about the final speed of this beautiful model

[Lego Dino 500]

How much faster are you going to get it? Tenders for 4-8-2 locomotives and larger were typically centipede or vanderbilt tenders. They can easily get to about 1/2 2/3 the size of the locomotive. You have room in the tender to put another 2 pumps, if you have them. And instead of just the two different strokes, if you put them in a spiral pattern they should provide more constant airflow to the pneumatic cylinders, but this only works with 3 or more.