Models

The region or company of the model

G3-08 Shunter

Here I have enlarged my 08 shunter to Gauge 3, 2.5-inch gauge.  I did this some time ago, now final finishing a few things and tidying up the files. 

To save space I've added zip file.

Peter D.  August 5, 2024

Coupling Hook (NFS alternative)

This hook has been added following recent requests for a 3d printable one.

Some hooks are contained within various wagon models but this one was designed to replace a Northern Finescale plastic moulded hook.
No doubt laser cut steel hooks are much stronger but this hook when printed in PETG has been found strong enough for most applications.

The examples shown are printed in silver PETG (I would normally use black). Infill was 100%, layer height 0.1mm, a brim was included to aid bed adhesion.

SR / SECR Dia 1426/1427 Box and Ventilated Van

This is the model for a SECR-designed and SECR/SR-built van to Diagram 1426. Several of these vans were rebuilt with ventilated sides for use on London-Dover-Folkestone fruit traffic, subsequently labelled as Diagram 1427.  This van survived into BR revenue-earning service, and several becoming departmental vans in the black livery.

There were both unfitted and vacuum fitted versions, and a brake cylinder has been provided for the latter. You will need to source vacuum pipes yourself, however!

Please note a few caveats:

Wagon Wheels to G1MRA Profiles

Simple wagon wheels to G1MRA Fine and Standard profiles

  • Fine: 1.5mm x 1mm flange and 5mm overall depth, with an 0.5mm projecting boss on the front face. 
  • Standard: 2mm flange x 1.5mm flangeand 6mm overall depth

The bore is sized for 2.9mm for reaming 3mm or 1/8" as appropriate. I have used this with success on 3mm ground steel axles into 3x8x3mm ball-race bearings.

I have included a 40mm B2B Gauge, a 42mm B2B is available on the G1MRA 75th Anniversary Brake Van model.

G3 Sentinel Y3

Enlarged version of my G1 Sentinel.

The largest piece is the body at 224.1mm long.  My Elegoo Neptune pro printer has a table that will accommodate this.

May 24           Source for Delrin sprockets and chain in UK, suggested by Robert SP (thank you Robert):

KARLGARIN MODELS January 2019
Warren Farm, Little Baddow, Chelmsford, Essex CM3 4TQ
Tel: (0)1245 226110 E-mail: skippy@karlgarin.com

9/Feb/24 Updated: G3-22.0 Handrail 1.stl    Shortening height form 5mm to 3mm.

Enhanced coal load/ballast block creator

This is still in development - if you find a problem or have suggestions for improvement please send feedback.

The initial inspiration was to create a representation of a coal load or ballast track bed.

The code is capable of generating a simulation of a full coal load, part used coal load or wagon fill, coal pile, flat spread/ballast, straight track base, radius track base. 

The track bases can be used to merge with track models before printing or can have a slot cut for using loose track.

 

Handrails and Stanchions

Here is some openSCAD code that can be used to create handrails and stanchions.
The code is still underdevelopment.

To use you can either create and 3d model for a single stanchion or the code can be used to create a single modle multiple stanchions and handrails.

Currently limited to a single style of stanchion and cylindrical handrails.

The first image shows what is generated by the default openSCAD code.

No STLs are currently provided as these would depend on usage.

Sentinel

Sentinel Y3 Locomotive.

May 24           Source for Delrin sprockets and chain in UK, suggested by Robert SP (thank you Robert):

KARLGARIN MODELS January 2019
Warren Farm, Little Baddow, Chelmsford, Essex CM3 4TQ
Tel: (0)1245 226110 E-mail: skippy@karlgarin.com

22/Feb/24         I found Flats should be filed on the Jack Shaft and the Axle Shafts where the Sprocket set screws seat.

 

 

 

Really Useful Box Lid Clips (improved) 22l and 9l + variants.

Many G1 modellers who have their own rolling stock use the 'Really Useful' brand of plastic boxes, particularly the 22l version for transporting and storing G1 coaches.
A problem with these boxes is that if stacked and then slid over one another the standard blue polypropylene lid clips can come dislodged. If one is not careful one can find that trying to lift 2 boxes just results in lifting one and a lid.
The object of this clip design is to provide a more secure clip that does not project above the box top and prevents dislodging.

GWR Dean S1 4 Compartment 2nd/3rd 4 wheel coach

The initial publication of this coach is an attempt to make a simple model for the "Christmas tree" project.

Some discussion is needed to simplify the design to make it easy to print. Currently the break gear on the ends of the coach are rather fragile and the body, if printed on a resin printer probably needs dividing into two for most printers.

The smaller components were designed for resin printing. The body, when resin printer is in two parts.

S1 - 4 compartment second later converted to third class.

4 wheels

25' x 8' - 18' wheelbase

LMS D1666 Five plank open wagon

Wooden underframe five plank wagon produced in huge numbers during the 1920s. Lasted into the 1950s.  This model was originally on the Groups.IO site but got lost in the move. I have taken the opportunity to improve some details. It now incorporates a barrow ramp at the top of the door, and the brake gear rack has been considerably narrowed to come closer to the prototype.  The W irons are now less of a tight fit.

Handrail/Wire Bending Tool

Tool developed for bending handrails for the BR 20t Brake Van Project - but obviously its use extends beyond that...

Designed for and tested on 0.8mm diameter stainless steel mig welding wire, that is otherwise rather difficult to get a neat, tight, bend in.

It utilises a modified M5 Hex head bolt, with a plain shank element of at least 20mm, cut and slotted at 1 end 5mm deep - see the .STL, just don't expect a 3d printed version to work! It uses a second bolt (or second part of the first one).