#the fact gresley valve gear is used on a 4-12-2 is insane

[locomotive-idiot]

You have any good videos of coupling rods in motion? They're for.... Ummm... Research purposes? Yeah, research purposes and definitely because they make my brain do the happy chemical as a train autistic myself

alright.

ok so (yt links ahead)

the one valve gear that scratches my brain really good is walschaerts

(221) Walschaerts Valve Gear - Test Animation - YouTube

another great valve gear??? stephensons

(221) Stephenson Valve Gear - Test Animation - YouTube

(like holy shit look at the mechanical stuff going on here)

it was mostly inside frame of old british locomotives (image is an inside frame version) :)

third???

(221) Attempt to do a 3D model of a Gresley valve gear - YouTube have you actually ever seen the fucking mechanical genius that is the gresley valve gear?

and fun fact! this valve gear was not only used on gresley locomotives, it was also used on the UP 9000 class

i would put more here, like baker and the young valve gear

but you gotta search that yourself "definitely also not autistic about trains" :3