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Here is some 1:32 scale roller bearing trucks i drew up in Fusion 360 and then had 3D printed and sent to me. I've had an interest in making mostly prototypical scale 1:32 modern north American freight trains for awhile now. This version i made needs some clearance tweaking for the wheels and bearings and some adjustments to keep the springs in. I don't know how far i will go into this endeavor, i am just trying some stuff and see where it goes. Some difficulties on this path is finding blue prints for the modern era stuff (i grew up in the 90's so its natural i would like the modern stuff haha). also there seems to be very little G scale in 1:32 for the modern stuff. I know most of the G scale community is in the 1:29 so i don't know how much interest everyone will find in this post but i thought i would post anyways just to see the thoughts and interaction from everyone. I personally would probably model a few highly detailed models to run indoors and i don't know how well this would run outdoors. I'm sure the wheels could be modified to have what is usually used for the outdoor 1:29 stuff.

Everything is in plastic but if i were to go ahead and continue refining it, i would make the wheels out of metal. I used to be a CNC machinist so i think it is something i could attempt in the future. it currently has .250 sized ball bearings for the wheels.

anyways i hope you all like it!

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I think this is a cool idea.
Its a struggle to find affordable true 1/32 scale american rolling stock, locos, buildings and people etc etc.
In mean there is basically
MTH, which is very expensive and limited engines. and no longer in production
Piko/MDC No modern engines and very little modern US rolling stock
Marklin , very few US engine offerings
Lionel large scale, but they are like a Fat short 1:31 scale and no longer in production

Gary Raymond may still have the 1:32 wheels
 

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What kind of plastic did you use? The axle bearings could be subject to wear or heat damage with some plastics. I know the old MDC trucks had this problem. Don't know about Piko.
 

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Oh man, those old MDC trucks were made out of self-destructing plastic, must have been from the same supplier that made the first Bachmann Shay trucks!

I would have thrown mine away, but they literally fell apart before I figured it out.

They were well proportioned cars in 1:32 but the line was too limited to convince me to go 1:32...

Back to the subject, the resolution and finish I have seen from filament printers on trucks makes them look "ugh" to me. A resin printer and abs, and metal wheels and SS axles would be fine... but a lot of cost and time.

Now, perhaps for passenger cars, and print the sideframes to accomodate small R/C car bearings... hmm...

Greg
 
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