Truck kingpins?

[daniel_leavitt2000]

Had anyone made 3d truck kingpins? I apparently lost my entire stock, and out a few hundred. MTL would be too expensive in this bulk, plus I use a lot of Athearn and Atlas trucks that require a narrowed bolster pin.

[learmoia]

I thought I saw some on Shapeways, but pretty generic..

definitely a nitch that could be filled if you can inter mix pin diameter and length and truck diameter.

[Ed Kapuscinski]

Can you fab some up easily with styrene shapes?

[tehachapifan]

For clarification, are you talking about the kingpins on the trailers or the 5th wheel plates on the tractor?

I believe you are talking about the latter?

[wazzou]

For clarification, are you talking about the kingpins on the trailers or the 5th wheel plates on the tractor?

I believe you are talking about the latter?

I believe he’s referring to truck pins, fastening the trucks to the bolsters of freight cars.

[Lemosteam]

I like to refer to them as bolster pins.  The problem with printing them is the hardness of the printed resin IMHO.   It's the softness and slippery-ness of the acetal of the bolster holes and pins that allow for that perfect press fit that we experience. So satisfying, lol. 

I bet, for the price of a single stamp, a small ziploc baggie and an envelope per willing member, that collectively, you could replace what you need in short order from this forum.

I can donate about ten of each size to your needs.

Anybody else?

PM your address and I'll get them to you after the holiday weekend.

[mecgp7]

Last I checked, I had 3-4 packages of 00312031 MICRO TRAINS / 003 12 031 Bolster Pins -- For Roundhouse Well Cars (1039) if you or anyone is interested. The pins themselves are about half the diameter of regular MTL bolster pins.

[tehachapifan]

I believe he’s referring to truck pins, fastening the trucks to the bolsters of freight cars.

Ugh! I was WAY off!

[peteski]

If Americans called "trucks" "bogies", that would make things much clearer.  Trucks should really be rubber-wheeled vehicles which travel over any solid surface.  Bolster pins is also a good descriptive term.  Aren't those called "kingpins" in 1:1 railroad lingo?

[wazzou]

If Americans called "trucks" "bogies", that would make things much clearer.  Trucks should really be rubber-wheeled vehicles which travel over any solid surface.  Bolster pins is also a good descriptive term.  Aren't those called "kingpins" in 1:1 railroad lingo?

Bogies should really be a verified incoming hostile aircraft.   

[MK]

No, I would say a famous classic Hollywood actor.   

[Doug G.]

Methinks the term "truck" was used for railroad trucks long before it was used for the rubber-tired vehicles.

Doug

[tehachapifan]

Methinks the term "truck" was used for railroad trucks long before it was used for the rubber-tired vehicles.

Doug

It was "kingpin" that threw me off, not "truck". I've only ever heard kingpin used in reference to the hitch lug on highway trailers (movie and criminal commanders notwithstanding ).

[peteski]

It was "kingpin" that threw me off, not "truck". I've only ever heard kingpin used in reference to the hitch lug on highway trailers (movie and criminal commanders notwithstanding ).

Found kingpin reference to model and real railroads. https://aergroup.net/rr-terms/#k

I think I also saw a drawing of a 1:1 truck (bogie) in one of the Kalmbach model RR books, and the bolster pin was identified as kingpin.

[Maletrain]

Getting back to the thought about attaching (trucks/bogies) to bolsters, why not just convert to screws?

Screws are much easier to adjust for amount of rocking motion.  And they don't have the habit of ending up on the track somewhere other than where the car eventually derailed after the slippery pin fell out and the car eventually came to a curve with a loose (truck/bogie).