For those who think size matters I up[loaded this big fat hot metal laldle car. These cars were used to transport liquid iron over short distances, when heat loss wasn't enough of a problem to start using torpedo ladles.

These particular cars were built bij Paul Würth SA for the Espérance-Longdoz steelworks in Seraing, where they were used to transport iron from blast furnace 5 and 6 to the hot metal mixer about 100 metres away. Probably delivered when blast furnace 6 entered service in 1959 they kept running untill the mixer went out of service in the late 1980's. 3 of these cars then somehow ended up on a siding in ougree, where they sat untill they were scrapped in early 2023. Luckily I spotted some of the parts of these cars still laying around in ougree, so I could see a lot of stuff that would usually be hidden, like the very peculiar pivoting buffer beams. Together with the centre wheelset on each bogie being flangeless I guess these cars could negotiate every starter set curve without any trouble.

Now on to the model!
First: it's a bit fat car, the chassis is already a bit wide and the lift point to tip the ladle sticks out even further, so only run it if you have a bout 10mm of clearance to both sides of your normal trains. (as you can see on one of the pictures, this car doesnt fit on my layout)
The lift point was bolted on on the real thing, so it could be removed if needed so you can cut it off if you like.

extra parts needed:
2 small springs
2 self tapping screws 2mm diameter
2 NEM couplers of choice
6 point-bearing wheelsets, wheel diameter 10,5mm, axle length 24,5mm
metal wire 0,4mm

I included a full ladle file with brick lining but that turned out to be quite a big file, so I also added a simplified ladle in case the file bricks your software.
Also included are 2 bogie versions with original bearings or modern bearings with 3 bolts, whatever those are called. Pick whatever you like.

printing:
I printed the ladle "upside down" to prevent suction. All top surfaces will get support marks but that's no big deal as they would be caked in debris on the real thing anyway. I printed my model on a Phrozen sonic mini 8K.

assembly:
test-fit the buffer beam in the chassis end parts, check that it pivots properly without resistance, then add the little buffer beam retainer bit to lock the buffer beam in place, test pivoting again, when it works smoothly take it all apart, attach the spring to the buffer beam part, then to the chassis, don't forget to have fun wrestling the little spring, then wiggle everything back in place and glue the retainer bit to the chassis.
Then put the bogies in place with the screws, check that they can move freely. Then put the wheels in, again, check if everything works.
Then assemble the chassis itself by connecting both end pieces using the curved side bits. Make sure it's all square. Test-run the car, preferably with couplers, after everything works as desired add details like buffers, brake handwheels and drill a bunch of holes for steps and handrails made of metal wire. I didn't prepare holes for these as they seem to be slightly different on every car.

Some pics of the real cars in ougree and my model for inspiration:
https://www.flickr.com/photos/floris_dilz/albums/72177720308553118

in case you wanto to know how I paint stuff:
https://lebassin.net/2022/11/09/paint-special/

also, if you print and build this car, feel free to let me know how it went. Pictures are nice too!

cheers,
Floris