3RT Designs

3RT Designs The Official Account of 3RT Designs
🔴 Orlando, FL
🔴 EST. 2026
🔴 Specializing in O Scale Parts
Business Inquiries: [email protected]

It’s been a while since we did another trashed out covered hopper, for the personal collection of course!Fully repainted...
08/14/2026

It’s been a while since we did another trashed out covered hopper, for the personal collection of course!

Fully repainted, applied fresh decals & weathering.

Atlas O Trainman PS4750
Kadee Conversion
Fusion Scale Graphics decals

A salvage project that’s been back burnered for quite some time…Unfortunately, this Atlas O TTX Berwick was poorly renum...
07/30/2026

A salvage project that’s been back burnered for quite some time…

Unfortunately, this Atlas O TTX Berwick was poorly renumbered by the previous owner, so we wanted to do something creative and replicate a car that at least had some patch work over the car numbering. TTX berwicks are fantasy, not the correct car body even if it’s a realistic and modern paint job… so all said and done, it’s not really too much of an issue for some customization.

Completed a light sun fade as the base, graffiti as a middle step, then decaling for a newer and “cleaner” repair to save this car.

Still working out some kinks in the process but one step at a time 👍

A lot of work put into these Atlas O Premier 5344’s, not all graffiti needs to look pristine… very rarely does it actual...
07/26/2026

A lot of work put into these Atlas O Premier 5344’s, not all graffiti needs to look pristine… very rarely does it actually look crisp and fresh. These cars are no exception, pretty weathered from service and tagged up.

All graffiti reflects prototype images (where feasible) and from pictures we’ve taken of other cars.

Happy Friday everyone! Sharing some completed boxcars for some clients. No two cars are ever the same…
07/17/2026

Happy Friday everyone! Sharing some completed boxcars for some clients. No two cars are ever the same…

🔴New Product Announcement🔴Atlas O Scale 53' Evans Boxcar Kadee Spacer ShimApplication: Kadee conversions (O Scale 1:48)M...
07/15/2026

🔴New Product Announcement🔴

Atlas O Scale 53' Evans Boxcar Kadee Spacer Shim
Application: Kadee conversions (O Scale 1:48)
Material: ABS Resin
Color: Black (Rendering is gray for visibility purposes)

Professionally designed and printed.

Yet another project completed, this time for  ! Big shoutout for the patience while we navigate life, other projects, an...
06/14/2026

Yet another project completed, this time for !

Big shoutout for the patience while we navigate life, other projects, and a little bit of ADHD 😂

This unit got a needed sun fade, some signs of primer peeking through the green roof, a patch out for Wells Fargo Rail, and we couldn’t complete this without including one of our EMD-D plows… not entirely a 1:1 to the prototype but we kept it lite and threw hints of detail in the weathering.

Let it be known that 6/13 will forever be WFRX day… since this one consumed the entire Saturday 😂

John Partridge showed off his EMD-C’s on these Dash 9’s! Yes - our plows cross fit some locos. Send us a message to conf...
06/08/2026

John Partridge showed off his EMD-C’s on these Dash 9’s! Yes - our plows cross fit some locos. Send us a message to confirm fitment with your engine!

🔴New Product Announcement🔴Universal Roof Mount A/C Unit “Dometic” for MTH/Atlas/Lionel O Scale LocomotivesApplication: A...
06/07/2026

🔴New Product Announcement🔴

Universal Roof Mount A/C Unit “Dometic” for MTH/Atlas/Lionel O Scale Locomotives
Application: All O Gauge Diesel Locomotives
Qty: Sold as pairs - choose QTY when adding to cart.
Material: ABS Resin
Color: Gray
Compatible with: MTH, Atlas and Lionel O Scale Engines

Upgrade or add a higher detailed A/C unit to the roof of your locomotive!

** Recommend sanding with 1200grit wet sand paper to remove some layer lines at the top to get best end results after painting **

** These will only be available in gray, waiting for the recipient to paint to the color of their needs **

Professionally designed and printed.

No parts on these, but finished up for a good client of ours. Not our first go around with some “light service” FEC unit...
05/31/2026

No parts on these, but finished up for a good client of ours. Not our first go around with some “light service” FEC units… but these came out perfect.

This may open a can of worms for the personal collection… regardless, enjoy the final result. 👍

🔴New Product Announcement🔴EMD Style Ditch Light Housings for MTH/Atlas O Premier Scale LocomotivesApplication: MTH/Atlas...
05/26/2026

🔴New Product Announcement🔴

EMD Style Ditch Light Housings for MTH/Atlas O Premier Scale Locomotives
Application: MTH/Atlas Premier Locomotives with Deck Mounted Ditch Lights
Material: ABS Resin
Color: Black
Compatible with: MTH and Atlas Premier Engines - may work on RailKing engines too, however cannot guarantee all fitments.

Upgrade those factory ditch light housings that are installed with a superior detailed equivalent! A direct drop in replacement (or perfect for adding ditch lights to an existing model).

** Includes clear lens to insert into the housing after the buyer paints. **

** LED bulb not included **

Professionally designed and printed.

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Orlando, FL

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