Pennsylvania 4-6-2 Steam Locomotive.

Post details of your rolling stock developments - locomotive, carriages, DMUs, etc.
NeilM
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Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by NeilM »

JoeMalinchak wrote:This brings up the question to everyone, what do you think it is made of?
Joe,

I was wondering on this myself. The only coloured prints I have has done at Shapeways are in Full Colour Sandstone. This material has quite a large minimum wall thickness and detail size, but more significantly the colour resolution always seemed right on the edge for T - I ended up with some cars where the windows just failed to colour as they were to small.

Have you used a different material? Or are you just better at getting fine detail into the colour information on your models?
Neil

T gauge items in my Shapeways shop http://www.shapeways.com/shops/t450

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

Post by ivanf »

JoeMalinchak wrote:Hope this helps!
Certainly does, Thanks Joe.

I'm still waiting for parts to arrive, then I'll be able to start measuring and send a print of a chassis off to shapeways... then get back to the waiting...

Then I'll be back with more questions... or probably bleating about glueing it all into a solid lump... I've done a fair amount with tiny etched pieces but never on a model where bits needed to move...

When you say "what's it made of" are you talking about the loco body? It sort of looks printed to me? erm... Is it a paper model?

Ivan

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

Post by mattinair »

In the AMA magazine articles I've read Joe uses special types of foam(or plastic?) sheets to make the micro planes he's famous for .....That's my guess...Oh and by the way..Wow oh Wow oh Wow(!!!)... :D

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

Post by JoeMalinchak »

Ivan, and mattinair are correct in the fact that the body is printed. I spent many hours working on the graphics, and the design of the body. However, it is not paper as many of you know that paper is hard to work with, and looks a little like paper. Mattinair is correct the body is made out of very thin foam! I used the techniques that I have developed over the years for my model airplane designs. I was not sure if it would work on a TGauge locomotive, but I think it worked well.

The .5mm foam is coated with many coats of a product called inkAid. InkAid is a product that allows any material that is coated with it to be printed on using a standard inkjet printer. I thin the inkAid 70% inkAid to 30% water and airbrush each coat onto the foam. Since this is not an airplane project weight was not a factor, and I gave the foam around 10 coats of inkAid. The more coats the better the print.

The thin foam is flexible and can be rolled into shape. I use UHU Por foam glue on the model as it works great on foam.
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JoeMalinchak
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Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by JoeMalinchak »

These are some photos of my planes that are made out of the same material. My corsair has a 6.8 inch wingspan, and my triplane has a 1.5 and wingspan. They both are R/C and fly!

My locomotive looks really small in comparison.
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ivanf
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Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by ivanf »

Hi Joe,

Oh, I see... I like 3d printed stuff as it misses out the assembly stages and the chances to put things together wrong but then painting is the next problem. Might have to have a rethink... :)

So what's next?

Ivan

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

Post by JoeMalinchak »

Ivan,

I think that the model would also look great if was 3D printed. I just like drawing the graphics with all the detail I can achieve with it.

Next, I am going to build another 4-6-2 with a different motor I want to try, and a road name with some vibrant graphics. I am thinking of making one in the Crescent Southern scheme.

Then I would like to experiment with a larger locomotive. Maybe a Daylight, but a would really love to do a Big Boy! sjrashid was working on a body for a 4-8-8-4 Big Boy. I hope he can complete it as I think that a 3D printed version would be much easier than drawing the graphics for a foam version. If someone can design a nicely detailed 3D body, I would design a working chassis for it.
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ivanf
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Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by ivanf »

Hi Joe,

I'm sure there are several people on the forum who would like to design steam train bodies to fit your chassis. I kmow I would. I've done a few in Z scale that I can probably scale down farily quickly.

I'd like to pursue a chassis design of my own but given I know nothing about designing chassis I might be better following someone who clearly does. :)

So, would you be willing to sell me a set of parts for your chassis? ( Just the bits you cut, rather than a build your own steam train kit. )

The only bit I'm missing now is the gear on the motor shaft? I've found these... http://kkpmo.istore.pl/en_US/c/Micro-Worm-Gear/2242028

But they're all 3mm and yours looks smaller. Where did you get yours from?

Thanks,

Ivan.

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

Post by PetrOs »

Hi,

Slightly smaller worm gears available here http://shop.kkpmo.com/index.php?cat=c63 ... ecken.html


Best
Petr

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

Post by JoeMalinchak »

Hi Ivan,

I purchased my gears from the site that Siegfried posted. http://shop.kkpmo.com/index.php?cat=c28 ... 4188041672 I used the M0.15 gears. They have a worm gear to match. Wormgear M0.15 1.6mm diameter. Your link looks like the same site, but I cannot find the M0.15 gears!

My current chassis design has 1mm holes for the gears. As I mentioned I used the TGauge.com geared axles, cut off the gears, and slipped the 2.85mm M0.15 gears onto the axle. This was a real pain! I am ordering some new gears with a 1.5mm hole. Hopefully, they will slip over the TGauge.com plain axles. Actually, I am hoping that TGauge.com releases the gears that they will be using to make things easier for a steam chassis design.

I am going to make a few small changes to my design, and resize it for the 1.5mm holes. I may not get to it this month as I make my living as an airline pilot, and I have my recurrent check ride in a few weeks. I normally spend some time preparing as you have to pass or loss your job! This means that I will not be doing much modeling for a few weeks.

Did you purchase your 2.85mm gears with a 1mm hole or a 1.5mm hole?

Send me an e-mail about sending you a set of my chassis parts. I will sell you a copy of my chassis parts, but I will not send out any printed foam parts. I may sell some of my locomotive designs at some point like I do with my planes. I currently, sell some of my model airplanes as RTF's, but I am so busy with work that I am not taking any orders at this time. joemal@echoes.net

Joe.

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

Post by ivanf »

PetrOs wrote:Hi,

Slightly smaller worm gears available here http://shop.kkpmo.com/index.php?cat=c63 ... ecken.html

Best
Petr
Thanks PetrOs, I was thrown by there being no picture on that page but I've got it now.
JoeMalinchak wrote: Did you purchase your 2.85mm gears with a 1mm hole or a 1.5mm hole?
Joe.
I got the 1mm hole ones but I did get a set of axels without the gears so hopefully I'll just need to make the holes bigger.

I'll now get on with ordering the wrong worm. :)

Email sent.

Good luck with the check ride.

Ivan.

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

Post by JoeMalinchak »

I had a little time, so I added some more detail to my locomotive. I added a ladder from the TGauge.com valve gear sheet, and some coal to the tender. I used Woodland scenics fine cinders. They seem like the perfect size for coal in this scale!
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JoeMalinchak
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Re: Pennsylvania 4-6-2 Steam Locomotive.

Post by JoeMalinchak »

Uwe,

The video’s in my build thread of my Pennsylvania 4-6-2 show my model runs well using the tender for picking up power. I really have had no issues with drag, but I am only using two magnetic wheels on the front and rear bogies of the tender.

However, I will experiment with picking up power from the main wheels as you suggested.

Joe.

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