Re: [CBQ] Aurora Depot Covered Platforms

["James Koretsky jameskoretsky@comcast.net [CBQ]" <CBQ@yahoogroups.com>]

Steve,

I'm going to do these in injection molded styrene, already have the quote, and it's the only viable way to get them easily and repeatable.

Cost per part will be cheaper, less time consuming and much better quality than casting when done in styrene.

It also means that I can offer them for sale, should people be looking for them for the same purpose or for a free lanced station with covered platforms. 

James

Sent from my BlackBerry 10 smartphone.

From: STEVEN HOLDING sholding@sbcglobal.net [CBQ]

Sent: Saturday, January 3, 2015 11:17 PM

To: CBQ@yahoogroups.com

Reply To: CBQ@yahoogroups.com

Subject: Re: [CBQ] Aurora Depot Covered Platforms

Make a mold and cast them in plaster or resin

Steve in SC

On Saturday, January 3, 2015 10:48 PM, "STEVEN HOLDING sholding@sbcglobal.net [CBQ]" <CBQ@yahoogroups.com> wrote:

 

James

This is the closest I have come up with Railway Age Gazette 1/28/1916

It helps to read thru every page of the old magazines

Not an expert just a student always looking for the answer

Steve in SC

On Saturday, January 3, 2015 2:14 PM, "Jeff Worones jworones@yahoo.com [CBQ]" <CBQ@yahoogroups.com> wrote:

 

James, why not have shapeways print the mold for you? You may be shocked at the injection molding costs...

Here in Seattle, we have an outfit called Fathom who will print almost anything for you. Most bigger cities have these types of service bureaus now. I have had them print injection molding tool inserts out of digital ABS and successfully shot parts in common plastics with them. Each set of tools only yields about 35 parts before they flash or delaminate.

Jeff Worones

Seattle WA

Sent from my iPhone

On Jan 3, 2015, at 10:23 AM, James Koretsky jameskoretsky@comcast.net [CBQ] <CBQ@yahoogroups.com> wrote:

 

Hi All,

Over the past several months, I've been working on trying to get
dimensions of the Pillars used for the Covered Platforms at Aurora, IL
Depot. I'm working on having these made as a part, and I've come up with
the following 3D drawing.

My inquires for dimensions on the pillars came up blank last time, so
I've done what I believe is the best guess, based on known dimensions in
various photographs that I used to make design the part.

http://www.nefree-mo.org/Aurora_Platform_Pillar.jpg

Let me know what you think, if it looks right, looks too big, too small,
etc... and I'll make adjustments. Plan is to have these done in
Injection Molded Styrene, as so many of them are needed for the 3
platforms / six tracks at Aurora, places such as Shapeways would be cost
prohibitive for production.

James

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Posted by: James Koretsky <jameskoretsky@comcast.net>

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