Saturday, 14 March 2020

Missouri Pacific 1932 ARA Boxcar - Part 3

I decided to go ahead and upgrade the ladder rungs on this car.  The flat profile of the rungs just didn't look right.  In the first photo the two middle rungs are original, while the others are 0.015" styrene rod.

Normally I would use 0.010" rod but the nub left when cutting off the rung was bigger than 0.010",  it looked odd with the smaller rod installed.  The second photo shows one end of the completed ladder rung swap.

I then cleaned and primed the car.  Paint used is ScaleCoat Box Car Red #2.  This is a medium oxide and looked right to my eye.  I weathered with Pan Pastels to represent a car that was repainted two years prior to my 1955 timeframe.

Trucks are Tichy 50 ton ARA spring plankless, these cars were upgraded to 50ton from the as built 40 ton rating.

Wednesday, 26 February 2020

Missouri Pacific 1932 ARA Boxcar - Part 2

 The Atlas under frame has basic molded detail.  I upgraded it to better match the prototype with Tichy components mounted on folded brass brackets.  Phosphor bronze wire for the various pipes and rods was used.

 Another unique item to these cars, is the use of a pressure head brake cylinder.  The cylinder has a bracket on the back to hold the rear brake lever.  I modified a Tichy brake cylinder with some bits of styrene and harvested rivets to represent the lever bracket.

 I further corrected the centre sill by adding a flange on the bottom of each of the Z-26 channels and rivets on the cross bearers.  The train line was installed after everything else, because I forgot to do it at the beginning of the under frame work. I did this with short pieces of styrene rod, fitted between the cross ties and cross bearers.  I designed and 3D printed some pipe tees and used one to attach the train line to the pipe leading to the dirt collector.

 The ladders were also upgraded with attachment brackets made from 0.005" styrene and harvested rivets.  Yarmouth sill steps were modified and installed to match the prototype steps.

  These cars featured a Universal brake housing and wheel.  The housing is from a DA set and the wheel is a modified Kadee Universal.  The modifications to the wheel was to add 5 holes, in the middle solid section to represent the 10 slots on the prototype.  No manufacture offers a M1704 Universal brake wheel as of yet.  The running board support was replaced with Yarmouth offerings.  I scratch built the tack boards and route card holders. The retainer valve was located in a bit of an odd location, above the ladder and required some tight bends in the pipe to match the prototype install.

 The MP and its subsidiary lines 1932 ARA box cars used a bit of an odd arrangement for the brake step.  The lower brake step supports extend down two ribs below the platform.  To capture this detail, I removed the supports from a Yarmouth Model Works brake step and made new ones from styrene strip and harvested rivets.  The photo details the other changes to the car end.

 I bent up and soldered some brass cut lever brackets, and bent my own levers.  Air hose brackets from Yarmouth were used with Hi-Tech rubber hoses.

 The car side is complete with harvested and Archer rivets added.  Next up is cleaning, prime, paint, and decals.  The odd cross section of ladder rungs are bugging me though.  I may replace them with 0.010" styrene rod.

Tuesday, 25 February 2020

Tool Box Tuesday #1

I spent some time a few weeks ago and modified an Engineers Square.  I milled the thickness of the head such that it sticks out only 0.045" from the beam on either side.  This makes scribing or laying out on thin material much easier, as the blade can fully rest on thin sheet stock.  I will put it to good use on single sheathed, board by board boxcar patterns.

I also machined a small photo etch bending tool.  Its about 2" long.  I also own a 5" bender made by the small shop but I wanted something smaller that is easy to hold in one hand.  It also works great for snapping brass strips.  I accomplish this by scribing the brass in the bender and then bending it back and forth a couple of times.

Thursday, 16 January 2020

Clinic File from Coco Beach RPM

Last weekend was the Coco Beach Rpm.  I presented my clinic on Machinist Hand tools for modelling.

Machinist Tools for Modelling - Part 1 Hand Tools - Coco Beach

This is an updated version from when I presented it at the Chicagoland Rpm.  This is a staic pdf and doesn't include the interactive portion of the live presentation.

Tuesday, 31 December 2019

Missouri Pacific 1932 ARA Box Car - Part 1

The Missouri Pacific rostered the largest number of 1932 ARA designed boxcars, 2500 in fact.  These totals include the subsidiary companies I-GN (International Great Northern) and NOT&M (New Orleans, Texas & Mexico) cars. The cars ran without any major modifications throughout their lives.  The one distinctive feature of the MP cars, is the choice of fixtures used on the Youngstown doors. They either came with Creco's Ball Bearing Fixtures or Railway Metal Product's Union Duplex Fixtures.  For further information about these and all of the other 1932 ARA designed boxcars, I recommend Ted Culotta's excellent book "The American Railway Association Standard Box Car of 1932".

Walter E. Frost, City of Vancouver Archives

I decided to model one of the NOT&M cars, which had the Union Duplex Doors, 4-4 Square corner ends, wood running boards, Universal Brake housing and Murphy panel roof.  The basis for this build is an Atlas 1932 ARA undecorated kit and parts kit (MK-102.6)  from my company National Scale Car. The decals were created by Ted Culotta and include MP, MI, and NOT&M reporting marks. I-GN cars did not have doors with the Union Duplex Fixtures and are not on the kit decal sheet.  The kit includes resin doors and etched door tracks.

I started by reviewing the Atlas car body, to the prototype photo.  Numerous small changes are needed, to build a more accurate representation of the car.  A prototype photo of the NOT&M car is in Ted's Book, but the cars generally followed what is shown in the MI photo above (note - the MI car has 4-4 round corner ends).  Changes are noted on the photo below.

Here is where I am at after and evening or two of work.

I will add rivet decals to the upper door track just before painting, that way I won't knock them off while working on the car.

The ends also need a few changes, as noted on the following photos.

The kit ladders are actually not too bad so I elected to keep them.  The other features noted will be scratch built.

I'm not one for New Years Resolutions but I do like "to do lists".  One of my favourite quotes is by Lee Iacocca - "The first step in accomplishing a goal, is to write it down".  So with this in mind, here is what I want to get done in the next year.

Build the following Freight Cars.

MP 1932 ARA Car (Atlas and NSC mini Kit)
B&O M26D (Speedwitch Media Kit)
D&H Oneota built modified 1937 ARR (Yarmouth Model works)
Grand Trunk Shower Car (Scratch Build)
UP Flat Car (Proto 2000 kit with Speedwitch Media decals)
Grand Trunk Western War Emergency Gondola (Ends will be offered as a mini kit through NSC)

The following Pattern Work

B&O M55 parts for Mini Kits from NSC
3 Patterns on my bench (I will let Yarmouth Model Works make the announcement)
Single Sheathed Auto Car Pattern (TBD)
Duryea Under frames (4 different versions)

A diorama of Danville Junction.

 Foam is cut, cork and ties are down.  Need to lay track and construct a crossing diamond.  I want to include the original Danville Junction crossing tower, but have yet to locate a useable photo of it.  If you have one or know of a source I would appreciate some help.  The original was torn down in 1963 from what I have learned.

Monday, 7 October 2019

CGW Shake and Take Kit

Its been quite a while since I posted about my modelling efforts.  I've been busy working on new kits for National Scale Car. In between casting, packing, and writing instructions I've managed to build a few freight cars for my layout.

Attendees of the Chicagoland RPM in 2017 received parts to create a 1937 AAR Boxcar for Chicago Great Western.  These cars used a Pullman car builder end.  The kit included resins parts, decals, and a Red Caboose Square corner undecorated kit. In 2018 George Toman presented a clinic on building his kit using the supplied parts.  Georges Clinic Can be found here.

I followed Georges Clinic to create an accurate car as I could muster.  I decided to not cut up a perfectly good Red Caboose Square corner car and instead started with an Intermountian 10' IH car instead.  The ends are separate parts so it saves cutting them off. I will let the pictures and captions tell the rest of the story.  I will be attending this years Chicagoland RPM and I'm already looking forward to George's Clinic on building the 2018 car.

Scratch built under frame, the kit under frame has diagonal corner braces where as the prototype did not. Also, the Z bar stringers are larger between the cross bearers at 4" x 4" versus the rest of the stringers at 3" x 3".

The floor from the body was milled off.  I custom made mounting brackets for the brake appliances from brass sheet and archer rivets.  The dead lever actually can rotate in the mounting bracket.

I also bent up a plate steel brake step from brass sheet.  Ladder attachment brackets were made from styrene strip and harvested rivets.  I filed the Equipco Brake Mechanism by hand, starting with and Ajax one, with some added styrene to the bottom.  The single hand grab on the end was fashioned from a partial bracket, styrene rod and harvested rivets.

Yarmouth Model Works Sill steps installed, along with one of their Wood Running Boards and brackets.

A view of the finished end with air hose bracket and cut lever installed. I cut the ladder rungs off and replaced them with 0.010" styrene rod.

Primed and ready for inspection before final paint.  The door track was also modified to match the prototype with the visible opening between it and the lower sill.

The roofs on these were painted black, while the running boards were stained and the painted, followed up by sanding off most of the paint to give a weathered look.

I weathered to match a Prototype photo using Pan Pastels and an AK wash.  Chalk marks were also added in addition to the  kit decals.

Thursday, 6 June 2019

Clinic from NERPM

 I was fortunate to attend this years New England Railroad Prototype Meet. I presented a clinic on Machinist tools for Modelling.  Here is a link to the presentation.

Machinist Tools For Modelling, Part 1 - Hand Tools

For those in attendance there were videos and dialogue components which are not part of this static pdf file.  I hope to present this Clinic again at the Chicagoland RPM 2019.