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General Electric E33 in N - On Members Workbenches. - More Practical Help - Your Model Railway Club
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 Posted: Fri Jan 6th, 2012 01:00 pm
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Burkitt
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This project is on my virtual workbench rather my real one.
I've been commissioned through the forums of Shapeways, the 3D printing company, to do the CAD design for a General Electric E33 in N scale. 12 of these 11,000V AC locos were delivered to the Virginian Railway in 1955, then sold by its successor the Norfolk and Western in 1962 to the New Haven, where they remained through Penn Central and Conrail control until withdrawn in 1981.



Photo by Frank Hicks, published under Creative Commons Attributions Share Alike License.

Preserved E33 at the Virginia Museum of Transportation. Painted in original Virginian livery, but with several modifications made in the Conrail era.


The bodyshell CAD is now largely finished, bar some front end and roof details for which I am awaiting some extra photos.














The model is designed to fit on an Atlas C628 chassis, which is within about a millimetre of the dimensions of the E33.

Paul

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 Posted: Sat Jan 7th, 2012 08:55 am
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Wayne Williams
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Wow Paul, nice work!

Roughly speaking how many hours do you have in this so far?

Wayne



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 Posted: Sat Jan 7th, 2012 12:36 pm
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Burkitt
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Thanks Wayne. So far it's been about a week of evenings working on this model.

Paul

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 Posted: Mon Jan 16th, 2012 06:42 am
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Burkitt
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Here are the final renders of the N scale E33 from Blender. I had to increase the diameter of the handrails to 0.6mm in order to make it printable - at 0.3mm they would have disintegrated.











Paul

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 Posted: Mon Jan 16th, 2012 06:55 am
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MaxSouthOz
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Still amazed  . . .  :shock:



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 Posted: Mon Jan 16th, 2012 07:15 am
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Sol
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Likewise exclam: :thumbs



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 Posted: Mon Jan 16th, 2012 07:30 am
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Wayne Williams
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The hand rails do look a bit large, but on the other hand they look good and strong. I don't think I would have really noticed it if you hadn't told us, so no harm done. As if you had a choice, right?

Very Impressive!

Wayne



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 Posted: Mon Jan 16th, 2012 09:09 am
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Petermac
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It does look great Paul.  Does it have to be printed with the handrails ?  Maybe they could do it without and you retro-fit them in brass ...........as Wayne said, they do look a bit hefty. :roll:  Otherwise, fantastic detail.  It will be interesting to see how well the print comes out.



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 Posted: Mon Jan 16th, 2012 09:12 am
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Burkitt
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Thanks all for your compliments.

Petermac, the person who commissioned the model requested that all the handrails be included as 3D printed parts, but it would certainly be possible to do a version without them so brass ones can be added instead.

Paul

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 Posted: Sat Jan 28th, 2012 08:54 am
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Burkitt
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The E33 has been submitted to Shapeways by the guy I'm designing these for, and should hopefully be delivered in the next few days.

Meanwhile, I've completed a second loco for him, the E33's successor the E44.
















This class had an amazing number of detail variations, especially among the lower numbered locos. The model depicts number 4400 in upgraded condition, and is probably not correct for any other members of the class.

Paul

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 Posted: Sat Jan 28th, 2012 04:54 pm
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gdaysydney
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Very impressive Paul:thumbs- how many photos of the original did you have to work with ?




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 Posted: Sat Jan 28th, 2012 05:00 pm
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Burkitt
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Thanks Dave. For the class as a whole I've got about 200 photos on my laptop, plus three sets of drawings. For 4400 specifically I used three or four photos that show its particular combination of details. There a plenty more photos on the net as well, rrpicturearchives.net has photos of pretty much every class member.

Paul

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 Posted: Thu Feb 2nd, 2012 04:49 am
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Burkitt
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The first print of the E33 was delivered from Shapeways yesterday.




At the back is the Atlas C628 chassis being used to power the loco, and in front of the body is the sprue with all the handrails and other details.


I've now moved on to the third model of the four I've been commissioned to do, the General Electric E40.





Paul

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 Posted: Tue Feb 7th, 2012 01:10 pm
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Hiroe
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Paul,
DO you know of any specific timeframe for when these model shells might be available for purchase? I've been trying to get some for about 15 years now. They're a pretty critical form of motive power for my PRR NEC modular project.

Yes, I will be running them under working catenary. As a longtime EPTC member, it would be wrong of me NOT to.:cool:

Thanks!
--Drew McCann

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 Posted: Tue Feb 7th, 2012 01:19 pm
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Burkitt
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Hi Drew,

Thanks for your interest in the models. I plan to make them available on Shapeways following a reasonable period after the delivery of the printed models to the person who commissioned the designs. I have one more loco to design after the E40, so hopefully they will all be available within a couple of months at the most.

Paul

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 Posted: Tue Feb 7th, 2012 01:36 pm
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Hiroe
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Ahh, excellent. Has a price point been decided on yet? I can see needing 4-5 of the E33's, 12 of the E44's, and one E40. (Still wondering what the magic #4 will be. An AEM7, hopefully? Although a P5a would be nice, too.)

Time to start stockpiling C628 mechanisms.

--Drew

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 Posted: Tue Feb 7th, 2012 02:00 pm
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Robert
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Hi Drew, any chance of you expanding on your modelling in a topic of your own?



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 Posted: Wed Feb 8th, 2012 01:12 pm
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Burkitt
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Drew, the price will be somewhere in the $60 region. If you plan on ordering multiple models, let me know once they're available and I can combine the ones you want into a single Shapeways file to cut the cost down quite a bit.

The E40 is designed to use a Minitrix U28C chassis, though I'm considering doing a version for the Kato PA chassis too. The final model will be a GF6C, using a Kato SD40 chassis.

Here is the finished E40 design, which includes truck sides as the U28C design looks very different from the E40, and of course doesn't have third rail shoes.





I've also done a version representing the locos' original condition with underframe fairings. By request of the person who commissioned the designs, I've added very fine indented lines to guide masking of the complex New Haven livery.



Another thing I've been working on is the instructions for the E44, in the form of an exploded view to show where all the separate parts go.







Paul

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 Posted: Tue Feb 14th, 2012 08:53 am
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eric220
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Loving that E44! I'm definitely in for a couple. What are you planning to use for pantographs?



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 Posted: Tue Feb 14th, 2012 08:57 am
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Hiroe
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Sommerfeldt does offer both Box and Faively style working pantographs in N.

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