Printing Project

This forum is dedicated to the Live Steam Hobbyist Community.

Moderators: Harold_V, WJH, cbrew

Post Reply
User avatar
Pipescs
Posts: 1800
Joined: Wed Feb 03, 2010 10:16 pm
Location: Lester Alabama

Printing Project

Post by Pipescs » Thu Nov 23, 2017 11:08 pm

A short thread on going from Idea to part in hand for those things you cannot find.

Or how to go from a sketch to a working part.

Earlier this year I attended Cabin Fever at York PA. There I met Steven Pontarelli of Dispatch Railroad Products. He was primarily displaying 1 inch scale castings in white metal.

Having taken His card I contacted him recently to see if he would be interested in doing a mold and producing a small order of 2.5 inch scale Journal Box Lids.

He agreed and this thread is on the results of the effort.

Before the rivet counters chime in, I will say that I am qualified to carry a candle for the late Barry Hague of Super Scale and that the J.B. Lids I am doing are not any particular scale item being stand off scale at best. I think they will look good rolling by from sixty feet away.

I started with various photos and drawings I found on the internet and from friends who were nice enough to mail to me.

These I put into a CAD model. Primary sizing was done to fit the Journal boxes I am working with.
2.5 Journal Box Lid (2).jpg
2.5 Journal Box Lid Mc Coe] (2).jpg
The lettering is the first time I have tried this on a printed part. While there is substantially a lot more wording on the prototype lids, I did not know how it would print display on the printed part or the final white metal casting. For that reason I simply with the large lettering
Charlie Pipes
USMC Retired

Current Projects:

2.5 Baldwin 2-4-2/2-4-4/0-4-4 Conversion (What ever)
Little Engines American Restoration
Bobber Caboose

User avatar
Pipescs
Posts: 1800
Joined: Wed Feb 03, 2010 10:16 pm
Location: Lester Alabama

Re: Printing Project

Post by Pipescs » Thu Nov 23, 2017 11:16 pm

Having spoken to Stephen on the phone of the molding requirements on Spin Casting, I modified the drawing to meet his needs.

The primary change of path was that I had to have the original pattern printed in metal instead of plastic.

This is needed as the master is used to make a vulcanized rubber mold that is then used to produce white metal proofs (one at a time) that are used to make the round spin mold which may have around 8 to 10 cavities for casting. (Watch YouTube on how this is done)

I use the company Shapeways for my printing.

It is a simple mater of uploading your file, select your material and hit upload. In a few minutes you can place the item in a cart and order it. eleven days later the Master was at my door step.
DSC_4835.jpg
DSC_4836.jpg
Charlie Pipes
USMC Retired

Current Projects:

2.5 Baldwin 2-4-2/2-4-4/0-4-4 Conversion (What ever)
Little Engines American Restoration
Bobber Caboose

User avatar
Pipescs
Posts: 1800
Joined: Wed Feb 03, 2010 10:16 pm
Location: Lester Alabama

Re: Printing Project

Post by Pipescs » Thu Nov 23, 2017 11:22 pm

Once I had this in hand I mailed it to Dispatch Railroad Products.

The first copies have been made and he will now be making the spin molds.

One place where I did make an error is in how thin the metal in the box area is.

While the print process can take the thin sections, the white metal casting process needs a little thicker area for the metal to flow in.

He is correcting this by trimming the rubber in the cavity area to make a thicker section.
IMG_3186.JPG
IMG_3187.JPG
Charlie Pipes
USMC Retired

Current Projects:

2.5 Baldwin 2-4-2/2-4-4/0-4-4 Conversion (What ever)
Little Engines American Restoration
Bobber Caboose

User avatar
Pipescs
Posts: 1800
Joined: Wed Feb 03, 2010 10:16 pm
Location: Lester Alabama

Re: Printing Project

Post by Pipescs » Thu Nov 23, 2017 11:27 pm

The look I was going for.
IMG_0899.jpg
IMG_0900.jpg
Charlie Pipes
USMC Retired

Current Projects:

2.5 Baldwin 2-4-2/2-4-4/0-4-4 Conversion (What ever)
Little Engines American Restoration
Bobber Caboose

BClemens
Posts: 315
Joined: Sat Oct 08, 2016 10:04 pm

Re: Printing Project

Post by BClemens » Fri Nov 24, 2017 6:23 am

Charlie,

I happen to have a set of journal boxes that have no lids so I would be interested in a few of these. The journal boxes are 2 1/2" scale and the lids are similar to your photos - dimensions will be provided....

BC

User avatar
Pipescs
Posts: 1800
Joined: Wed Feb 03, 2010 10:16 pm
Location: Lester Alabama

Re: Printing Project

Post by Pipescs » Fri Nov 24, 2017 10:07 pm

JBL 001.jpg
I will not be offering these for sale but have told Steven at Dispatch Railroad that I have no problem with him selling them to help his business.

You can find him on the internet.
Charlie Pipes
USMC Retired

Current Projects:

2.5 Baldwin 2-4-2/2-4-4/0-4-4 Conversion (What ever)
Little Engines American Restoration
Bobber Caboose

User avatar
Pipescs
Posts: 1800
Joined: Wed Feb 03, 2010 10:16 pm
Location: Lester Alabama

Re: Printing Project

Post by Pipescs » Sat Nov 25, 2017 8:41 pm

The proof arrived today.
DSC_5066.jpg
DSC_5072.jpg
Charlie Pipes
USMC Retired

Current Projects:

2.5 Baldwin 2-4-2/2-4-4/0-4-4 Conversion (What ever)
Little Engines American Restoration
Bobber Caboose

Glenn Brooks
Posts: 1112
Joined: Mon Nov 10, 2014 1:39 pm
Location: Back in Washington, Alas

Re: Printing Project

Post by Glenn Brooks » Sat Nov 25, 2017 9:33 pm

Charlie, how is the lid secured to the journal?

Glenn
Moderator - Grand Scale Forum

Motive power : 1902 A.S.Campbell 4-4-0 American - 12 5/8" gauge, 1955 Ottaway 4-4-0 American 12" gauge

Ahaha, Retirement: the good life - drifting endlessly on a Sea of projects....

User avatar
Pipescs
Posts: 1800
Joined: Wed Feb 03, 2010 10:16 pm
Location: Lester Alabama

Re: Printing Project

Post by Pipescs » Sun Nov 26, 2017 9:50 am

Hey Glenn

The plan is to drill each lid and then use them as a drill guide into the journal box (Lug for lack of knowing its proper name)
DSC_4833.jpg
DSC_5075.jpg
Charlie Pipes
USMC Retired

Current Projects:

2.5 Baldwin 2-4-2/2-4-4/0-4-4 Conversion (What ever)
Little Engines American Restoration
Bobber Caboose

Bill C
Posts: 216
Joined: Fri Aug 08, 2008 9:14 pm
Location: Pensacola, FL

Re: Printing Project

Post by Bill C » Tue Nov 28, 2017 2:22 pm

Hi Charlie,

That is really a cool project, I appreciate you taking the time to document it and share it with us!

Semper Fi,

Bill C.

Post Reply