actually, thats not possible. thats not what "collidermod" does. collidermod just shows where block colliders are so that builders can work around them, it doesnt REMOVE THEM. you can ask for techniques builders use in the besiege discord (theres a lot of techniques, its easier from there since there are more people that will help) https://discord.gg/besiege

Ah, thanks for clearing that out, i thought people used other programs since i didn't know how to no-collide stuff.

im just using the game (with advanced building mode on) and a few mods to build these (mods i use are nobounds, easyscale, and collidermod)

Hey i have a few questions about this kind of vehicle building. How did you make the model of the boiler for the locomotive? Was it built in-game or were there some thirdparty modeling programs involved? This question always bugged me when looking at popular builds.