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Author Topic: Single Window Coach  (Read 9704 times)

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JoeD

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Single Window Coach
« on: March 31, 2015, 04:41:24 PM »
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Looking at the next couple of HW cars and have/and will  push for the single window coach to get Chris and Pud off my back  :D  The reservations we had over manufacturing difficulties we think we can overcome now with the experience we've gained.  It may not seem like it, but the amount of material that's not there causes uneven flow and cooling creating plastic banana's.  We've been working with the placement of the injection point and even multiple points that we think will help overcome some of the distortion.

So, looking for suggestions for three more cars including the Single Window Coach...one I am pressing for is a Coach Baggage combine...so maybe only one suggestion  :D

Joe
« Last Edit: April 01, 2015, 02:20:01 PM by GaryHinshaw »
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oakcreekco

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Re: Single Window Coach
« Reply #1 on: March 31, 2015, 04:52:07 PM »
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Joe, I would love to see anything DRGW or "close enough" to DRGW.

Only hitch is the paint. I'm only interested in 4 stripe or single stripe with the silver and gold scheme, DRGW or "Ski Train".

I know, I know, I'm not asking for much! LOL :)
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Paradise275

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Re: Single Window Coach
« Reply #2 on: March 31, 2015, 04:54:12 PM »
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Hi Joe.
I have asked for, and received a lot of favourable comments for a Solarium Car. In the northern climates, these cars were used more frequently than the veranda cars you are currently producing. There is also a lot more opportunity to kit bash them into a wide variety of private cars.

Thanks for all your hard work. We sure appreciate your dedication to our cause.

Rick

PS Don't forget Canadian National heavyweights!!!!! :D :D :D
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victor miranda

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Re: Single Window Coach
« Reply #3 on: March 31, 2015, 05:04:27 PM »
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Hi Joe,

is allowing a longer cooling time in the mold a way to
avoid the 'banana-ing'?

perhaps an interior brace skeleton?

you may be looking at the reason the cars have not been done in the past.
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Chris333

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Re: Single Window Coach
« Reply #4 on: March 31, 2015, 05:09:04 PM »
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I thought it was just a cooling issue as well. Didn't know about the injection.

I suggest after the single window coach you make more single window coaches  ;)
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Missaberoad

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Re: Single Window Coach
« Reply #5 on: March 31, 2015, 05:13:38 PM »
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Baggage/passenger combine would be most welcome... Maybe a Baggage/RPO?
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victor miranda

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Re: Single Window Coach
« Reply #6 on: March 31, 2015, 05:15:35 PM »
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Quote from: Chris333 on March 31, 2015, 05:09:04 PM
I thought it was just a cooling issue as well. Didn't know about the injection.

I suggest after the single window coach you make more single window coaches  ;)

one way to think about it is that when you move the injection point
you are moving how the heat is put into the mold.

or how the cooling happens....

plastic injection is an interesting art.

victor
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JoeD

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Re: Single Window Coach
« Reply #7 on: March 31, 2015, 05:44:28 PM »
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delicate dance when it comes to cycle times.  The mold is temperature controlled with heating elements and water injection and it would be difficult to let it cool down long enough for things to "set" and then heat it back up.  Once you get everything just right, you sorta have to leave it there...even the amount of time the hot half and the "cool" half are separated have much to do with the cycle times.  You also have shrink...as it cools which could play havoc with your ejectors or even stress the plastic.  By using multiple injection points, sometimes you can control the density of the shot as it flows into the cavity.   We have a program that shows graphically how the plastic will flow through the mold as it's injected at different pressures and temperatures.   Neat to watch.  We will figure out something to make it happen

Joe
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Puddington

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Re: Single Window Coach
« Reply #8 on: March 31, 2015, 06:23:28 PM »
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Wonderful news Joe..... I would encourage you to look at some modernized sleepers - 8-1-2, 10-1-2, 14 compartment, 6-3... while somewhat unique to particular roads (ie: the CPR's "R" series 8-1-2) these would be quite popular with transition and 1960-s-70's modellers. If a couple of roofs were tooled; a roof like your sleeper roofs and a a/c duct roof with individual ducts you'd have a quite a variety of cars.....

Just food for thought........
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arbomambo

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Re: Single Window Coach
« Reply #9 on: March 31, 2015, 06:31:40 PM »
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Quote from: Missaberoad on March 31, 2015, 05:13:38 PM
Baggage/passenger combine would be most welcome... Maybe a Baggage/RPO?

baggage/RPO is the next release from MT...a CB&Q prototype...mentioned in the first number of pages of the heavyweight baggage thread


I vote for a 3000-series ATSF coach and/or smoker
Bruce
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Dave V

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Re: Single Window Coach
« Reply #10 on: March 31, 2015, 06:35:16 PM »
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The Pennsy P54 was a single-window coach...  Just sayin'...   :D
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Bob Bufkin

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Re: Single Window Coach
« Reply #11 on: March 31, 2015, 06:39:34 PM »
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Solarium coach or sleeper.
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jmlaboda

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Re: Single Window Coach
« Reply #12 on: March 31, 2015, 07:10:54 PM »
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Quote from: Dave Vollmer on March 31, 2015, 06:35:16 PM
The Pennsy P54 was a single-window coach...  Just sayin'...   :D

No it wasn't.  Paired windows all the way down.  Now the less common MP54 was closer to having single windows, having windows arranged in groups of three but aside from some doodlebug trailers single windows just were not considered by PRR.
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garethashenden

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Re: Single Window Coach
« Reply #13 on: March 31, 2015, 07:25:35 PM »
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How about these? There are both coach and combine versions. Built by Osgood Bradley and used by B&M, NYNH&H, NYO&W and WM




I've got drawings of both...
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sizemore

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Re: Single Window Coach
« Reply #14 on: March 31, 2015, 07:29:31 PM »
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Quote from: garethashenden on March 31, 2015, 07:25:35 PM
How about these? There are both coach and combine versions. Built by Osgood Bradley and used by B&M, NYNH&H, NYO&W and WM

I've got drawings of both...

I second this notion.

:D
The S.
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