Pennsylvania 4-6-2 Steam Locomotive.

Post details of your rolling stock developments - locomotive, carriages, DMUs, etc.
JoeMalinchak
Posts: 118
Joined: Thu Jun 04, 2015 8:35 am
Location: Greenfield TWP, Pennsylvania (Near Scranton)

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by JoeMalinchak »

Guys, thanks for all the kind comments on my project, this is my latest progress.

I installed the spoked wheel covers, and the connecting rods using the rivets and the small caps from the TGauge.com valve gear sheet. Just by cutting the rivet it held the cap in place. However, I added the smallest drop of CA just to be sure it will hold up over time. Working with these small parts is insane work. I am calling it Extreme Steam Craziness.You need extra rivets and other parts as you are bound to lose some during assembly!

I also learned lots more from my tests with the 3.2mm motor. The rear magnets are very close to it, and seem to have an effect on the locomotives performance. I placed the magnetic rings from the rear wheels on my soldering iron for a few seconds, and that demagnetized them. Placed them back on the wheels, and the locomotive is running very well at this time. In fact I found that all the model really needs it two wheels with the magnetic rings to be efficient. I am using them on the center wheels on my first prototype, the other wheels have rings that are demagnetized. This is with the 3.2mm motor. The 4mm motor has more power and may work better with them. I plan on building a second model with a 4mm motor to test this out when I get time.

Hope this information helps.

Joe.
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rail450
Posts: 112
Joined: Thu Oct 27, 2016 7:05 pm

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by rail450 »

Hi Joe,
did you place the steam wheels at the distance of about 5.1mm as shown in my construction?
Do the parts from the Valve Gear Set fit with this distance?

BR,

Siegfried

rail450
Posts: 112
Joined: Thu Oct 27, 2016 7:05 pm

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by rail450 »

Hi Joe,
is it possible for you to do your driving test with ONE driven pair of wheels only: the magnetic center wheels ?
BR,

Siegfried

JoeMalinchak
Posts: 118
Joined: Thu Jun 04, 2015 8:35 am
Location: Greenfield TWP, Pennsylvania (Near Scranton)

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by JoeMalinchak »

Hi Siegfried,

I moved the spacing out slightly so the valve set would fit. I was hoping that the extra gap would still give me enough gear mesh and it did. However, I think that your spacing may even work, but you would have to test it.

I did run it with only one driven pair of wheels, and she ran well. I would also like to mention that she ran with the three magnetic wheels attached. It really glues the engine to the track as you can run full speed and she would never come off the rails! My problem was after running for 30 minutes or so the engine was losing performance. I removed the rear magnetic wheels and she ran great again. I think with a 4mm motor I would go with two sets of magnetic driven wheels. The middle and the front ones. However, I would test this first. I was going to draw up a new chassis to fit the 4mm motor, but decided to give the 3.2mm motor a shot since I came this far with the project.

Joe.

rail450
Posts: 112
Joined: Thu Oct 27, 2016 7:05 pm

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by rail450 »

Hi Joe,
my test of wheel spacing needs a new brass printout for each test.
pls, tell me your exact spacing - this will be verry helpfull ;)
BR,
Siegfried

JoeMalinchak
Posts: 118
Joined: Thu Jun 04, 2015 8:35 am
Location: Greenfield TWP, Pennsylvania (Near Scranton)

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by JoeMalinchak »

Hi Siegfried,

I used 5.25mm the exact hole spacing of the TGauge.com valve gear rod holes. The gears seem to run smooth at that spacing.

Joe.

JoeMalinchak
Posts: 118
Joined: Thu Jun 04, 2015 8:35 am
Location: Greenfield TWP, Pennsylvania (Near Scranton)

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by JoeMalinchak »

I had a little problem with my 3.2mm motor chassis after I installed the connecting rods. The wheels were slipping, and the rods were jamming. I tried gluing the wheels in with CA, and 5 minute epoxy without success. I had to build a new chassis, so I redrew my design for a 4mm motor, as I wanted a little more power. The 4mm motor just fits my Pacific Locomotive body. I want to mention that I used the TGauge.com axles, but the steam wheels do not fit into the holes. I had to drill them out to get them to fit, causing the wheels to slip. However, after I completed my new chassis I found a glue that worked well. I used a small amount of Gorilla glue.

I used 4 magnetic wheels on this version on the middle and front axles. The rear wheels have two demagnetized rings on the wheels. This chassis runs great with lots of power. I am using a 13ohm 4mm motor. I installed the connecting rods and simple valve gear. The model is a scaled down version of one of my favorite Zscale locomotives.

I also installed the front wheels!

Joe.
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JoeMalinchak
Posts: 118
Joined: Thu Jun 04, 2015 8:35 am
Location: Greenfield TWP, Pennsylvania (Near Scranton)

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by JoeMalinchak »

This is a video of a test with the connecting rods installed.

JoeMalinchak
Posts: 118
Joined: Thu Jun 04, 2015 8:35 am
Location: Greenfield TWP, Pennsylvania (Near Scranton)

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by JoeMalinchak »

This video shows the model running with the 4mm motor and the connecting rods installed.

msimister
Posts: 95
Joined: Sun Jun 21, 2015 6:18 pm
Location: Melbourne, Australia

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by msimister »

Great stuff Joe, great stuff! I really didn't think it possible in this scale. Very impressive.
Cheers,
Malcolm

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alanr
Posts: 18
Joined: Thu Nov 21, 2013 2:36 pm

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by alanr »

[quote="JoeMalinchak"] TGauge.com axles, but the steam wheels do not fit into the holes. [quote]

Fantastic pioneering work Joe. Have to say though, there's nothing like reading the above to make us stop in our tracks and double check parts (thanks for this ;) ) . The wheels are designed to be a press-fit into the axles and as long as they are held squarely to the axis of the axle should come together without any need to drill. I'll send some more axles out to you with hopefully some 0.2mm dia washers - Keep up the great work!!!
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Ozrail
Posts: 91
Joined: Wed Nov 20, 2013 10:50 pm
Location: Queensland, Australia

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by Ozrail »

I am so sad and envious of your achievements.
Well done to you.
Check out my Shapeways store for T-gauge stuff.
Image
http://www.shapeways.com/shops/everythingtgauge?s=0

JoeMalinchak
Posts: 118
Joined: Thu Jun 04, 2015 8:35 am
Location: Greenfield TWP, Pennsylvania (Near Scranton)

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by JoeMalinchak »

Hi Alan,

I was trying to push the axles in by holding them in my hand without success. I installed the axle in one of my frames to hold in place, and I was able to push the axle in without drilling!

These are some photos of the tender and locomotive body!

Joe.
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dkightley
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Location: Nottingham, UK

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by dkightley »

Absolutely amazing Joe.

I was talking to Alan (TGauge.com) earlier today and your work came up in our discussions. This has got to be one of the defining moments in the history of T gauge.....the first steam loco with connecting rods!!

You never know! The distant dream of an A4 hauling a rake of mark 1s over the Forth Bridge....all in T...is getting very slightly nearer actually coming true!! ;) The next step is a micro smoke generator!
Doug Kightley
Webmaster here and volunteer at the National Tramway Museum http://www.tramway.co.uk

rail450
Posts: 112
Joined: Thu Oct 27, 2016 7:05 pm

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by rail450 »

Hi,
there is a real chance to add a smoke generator
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like this from www.http://seuthe-dampf.de/spur-n/

BR,

Siegfried

JoeMalinchak
Posts: 118
Joined: Thu Jun 04, 2015 8:35 am
Location: Greenfield TWP, Pennsylvania (Near Scranton)

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by JoeMalinchak »

Hi Doug,

I really appreciate the support from everyone on my steam locomotive project.

I am hoping we will see many more steam locomotive projects from people in the near future, and some commercially available locomotives soon. I know that Siegfried's steam locomotive will be a beautiful model when complete.

Siegfried,

A smoke generator would really be great if it can be made to fit in a TGauge body!

JoeMalinchak
Posts: 118
Joined: Thu Jun 04, 2015 8:35 am
Location: Greenfield TWP, Pennsylvania (Near Scranton)

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by JoeMalinchak »

After many hours of hard work I completed my Pennsylvania 4-6-2 Pacific locomotive! I just have a few minor details that I want to add like some coal in the tender, and a ladder from the TGauge.com valve gear sheet.
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rail450
Posts: 112
Joined: Thu Oct 27, 2016 7:05 pm

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by rail450 »

Hi Joe,
you are doing a very very great job -fine and fantastic loco.

My work is not so fast, because I´m doing the construction with Inventor and printing the loco body at Shapeways.

Therefore each development loop takes at least 2 weeks.

My target is to be able to reproduce the BR01and I´m buliding up five BR01 locos

The new body release has been shipped by Shapeways Yesterday - I´ll be back soon....

;)

Siegfried

ivanf
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Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by ivanf »

Hi Joe,

thanks again for posting what you're doing.

I've started attempting to follow along, so far it amounts to some shopping... and quite a lot of "this is tiny"... :)

I've got the etched fret of connecting bits and have a rough idea of what goes where but the finer details escape me.

Any chance you could elaborate a bit on how you assembled it? With particularly reference to not glueing everything together. I've watched your video a few times and still can't quite believe what you've managed to do. :)

Ivan

JoeMalinchak
Posts: 118
Joined: Thu Jun 04, 2015 8:35 am
Location: Greenfield TWP, Pennsylvania (Near Scranton)

Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by JoeMalinchak »

Hi Ivan,

First I would like to say that I did all of my design work on the model in Adobe illustrator. I scanned in photos of my ZScale 4-6-2 and reduced them down to 1:450 scale. I drew the chassis so it would fit into the body. I spaced the 17 teeth 2.85mm gears at 5.25mm spacing, so the connecting rods would fit. I also had to draw up the front and rear bogies, and make them fit at the proper height and spacing.

The heart and soul of the project is the design of the body. I used the same technique that I use to design my model airplanes. I was not sure how it would work on a TGauge locomotive, but it worked well. This brings up the question to everyone, what do you think it is made of?

The basic assembly starts with the chassis frame that I laser cut out of Garolite. The frame is glued together at the rear with CA. Then I slipped the gears into place, and glued the rest of the frame together. I want to mention that I had to ream the gears out that I purchased to fit onto my axles. I ordered them with a 1mm hole. I will try them with a 1.5mm hole on my next build to see how they fit on the plain axles. I then installed the motor, and ran it to make sure that the gears were spinning freely! The wheels were then glued into the axles with a small amount of gorilla glue. Then I installed the connecting rods. I had to ream out the connecting rods as you want them to have a little space and move freely on the rivets. I installed the caps on the rivets and cut them close to the cap. I also added some CA to the cap to help secure it.

The tender was built out of Garolite like the chassis frame, and uses springs attached to the bogies to pick up power.

Hope this helps!

Joe.
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