Electrics at Work

An open forum to discuss all aspects of the New Haven Railroad.
frn1963
Member
Joined: 29 Aug 2003, 20:15

07 Oct 2016, 14:07 #31

This is all spectacular stuff. Did you make the heavy truss girders for the non-movable portions of the bridge from scratch or did Model Memories make them for you? They seem to be standard for the larger movable bridge approaches - and also for the "Milk Factory" bridge over the East Croton River in Brewster. Did you work from or develop drawings for these?
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nhhe52
Member
Joined: 26 Mar 2004, 05:19

07 Oct 2016, 19:10 #32

I developed CAD drawings to scale for all the brass and plastic parts. At first it was to be made all from etched brass parts but the cost became excessive. So it evolved into a composit of etched brass and CV, ME and Plastruct plastic parts. Don made the etching plate drawings from my CAD drawing files and had the brass parts etched for me. I assembled the truss girders (the inside webs are seperate brass pieces) and added the finish plastic structural parts and open web CV parts. The real bridge has two truss girders per track. Given I have a life outside of my hobby ūüėÄ I made two brass truss girders for each two track
span and made up two plastic ME girders lengths for each of the two middle sections. I had Don assemble the etched parts for the rolling lift plate girders, hinged rack center beam and fixed plate girder sections of the span. Rivets are decals. The plate girder supports for the rolling lift and operators house are all made from ME, CV and Plastruct parts and pieces cut size. Drawing it all to scale first is the key. I'm happy to share PDF drawings and CAD files of any of it if you're interested. It certainly has been and continues to be a labor of love as they say. ūüėÄ

http://images.yuku.com/image/jpeg/b4236 ... f805fa.JPG
http://images.yuku.com/image/jpeg/8b936 ... 4964a9.JPG
http://images.yuku.com/image/jpeg/a3a16 ... e11948.jpg
http://images.yuku.com/image/jpeg/6ff36 ... f7dc6f.JPGhttp://images.yuku.com/image/jpeg/91726 ... f73c98.jpg
http://images.yuku.com/image/jpeg/a3136 ... 547f0a.jpg
Last edited by nhhe52 on 11 Oct 2016, 21:39, edited 4 times in total.
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DBrion
Member
Joined: 21 Jun 2006, 05:52

07 Oct 2016, 23:07 #33

To nhhe52:
With your abundant research, drawing prep and modeling results your project should be a candidate for an NMRA MMR application.
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nhhe52
Member
Joined: 26 Mar 2004, 05:19

08 Oct 2016, 02:09 #34

Dick:


Thanks for the compliments but the layout needs to get finished first and that might be some time before the overhead wire gets strung. I would love to model some triangular sections but we'll see about that. For the time being I'm enjoying the incremental steps and all that I've learned about the amazing NYNH&H from the NHRHTA members and researching on my own.



The model (caricature) is half the scale length of the actual bridge and I've simplified the the catenary bridge connection details to the stone piers even from the drawings to save some time. The catenary bridges are half the scale distance apart as the actual as I'm using the Model Memories prototype layout.


http://images.yuku.com/image/jpeg/ee826 ... cee9dc.jpg



I ride the New Haven line every workday in brand new commuter cars and under and over infrastructure that is over 100 years old. Every trip is a time machine for me. Most likely everyone else on the train is completely oblivious to the the history surround them. I get on at Harrison, pass historic Mamaroneck Station, SS22 at New Rochelle Junction and the Branch, then on thru to the Woodlawn flyover, thru Mott Haven, over the river lift bridge onto the Park Ave viaduct, then under Park Ave and into one if the best remaining RR terminals in the country if not the world, Grand Central. Then the reverse home at the end if my day. What could be a better way to start and end the day? Starting and ending the day at Riverside and crossing over the Cos Cob Bridge.ūüėÄ


I wanted to add that there are still even a few sidings along the southbound route. One a double track siding servicing a lumber yard in the Bronx and a long single track siding in Mamaroneck service a few businesses, one receives plastic pellet hoppers.

Ed
Last edited by nhhe52 on 15 Oct 2016, 03:02, edited 4 times in total.
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JWilson
Member
Joined: 13 Jul 2009, 02:37

09 Oct 2016, 19:21 #35

Who made the circuit breakers shown on one of your bridges?  Are they available in N or 0 (hopefully both) scales?
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nhhe52
Member
Joined: 26 Mar 2004, 05:19

09 Oct 2016, 20:51 #36

J:

I had the circuit breakers modeled in CAD then 3D printed in HO but they can be printed in any scale. You may have to contact the designer to change the models to N scale but I know an O scale version of the large circuit breaker (mislabeled catenary) has already been printed. You can find them on the Shapeways website. I strongly recommend paying for the ultra finer detailed plastic material. You will not be happy with the soft plastic. It doesn't look bad in the on-line samples but these samples are 3D drawings not real samples. The soft inexpensive plastic in reality looks like it's made from snow, every edge is very rounded.

http://www.shapeways.com/product/NFQRRQ ... d=59053343 http://www.shapeways.com/product/7RX7ZC ... d=59042203 
http://www.shapeways.com/product/PNTFGW ... =59050660o 
http://www.shapeways.com/product/437YHN ... d=59077400 
http://www.shapeways.com/product/WZM5D2 ... d=59077391


Shapeways is an interesting business model. An international company but the printing is performed by a local provider. I had the circuit breakers modeled by a designer in Spain but they were printed in Long Island City, NY.

Have fun with them:

http://images.yuku.com/image/jpeg/30d16 ... a2d11e.jpg


For model wiring instructions contact Rick Abramson, the Wizzard of NH model overhead catenary.
Last edited by nhhe52 on 11 Oct 2016, 14:32, edited 17 times in total.
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DBrion
Member
Joined: 21 Jun 2006, 05:52

09 Oct 2016, 22:48 #37

Ed,
You have embarked on a true labor of love.  It is already a centerpiece.  I'm sure you're having fun on your journey.
Re: commuting on the ex-NHRR, I agree with you 100%.  If people only knew the history of the ROW development, engineering, construction, etc., much of it before sophisticated welding and alloys, and computerized elemental analysis.  Built up plate steel and lattice construction, all nicely riveted together; massive concrete structures with a classical ornamental touches.  Where were we then? 
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Rick Abramson
Member
Joined: 09 Mar 2003, 07:00

10 Oct 2016, 02:18 #38

Thanks to Ed, I have a set of these gorgeous circuit breakers. Question is, when do I begin to modify my anchor bridges. . .stay tuned!!
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DBrion
Member
Joined: 21 Jun 2006, 05:52

10 Oct 2016, 04:28 #39

Rick,
Have a Board of Directors meeting with yourself and schedule an outage!  Image
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Rick Abramson
Member
Joined: 09 Mar 2003, 07:00

10 Oct 2016, 12:15 #40

Dick:

That just might work!
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