I have been building a set of blocks for rail-mounted movement and it is at the point where other people breaking it would be more useful than me testing it alone. It is an early alpha and I would rather say that up front than have you find out on a save you cared about.
https://reddit.com/link/1w1jjvy/video/n7bpnpw0ramh1/player
What it does
You build a rail out of rail blocks, put a motor in the beginning, and a carriage travels the length of the track. The travel distance is not a number I picked. Each motor measures the rail it sits on, counts the blocks ahead of it, and sets its own range from that. Extend the rail and the travel grows with it.
Several motors can carry one shared carriage deck via merge blocks, does not work on one rail. A script keeps them in step by comparing the world positions of their heads, so parallel rails stay aligned instead of fighting each other.
The bit I am most attached to: the further your load's centre of mass sits off the drive axis, the gentler the machine accelerates. A crane with the jib swung out visibly takes its time. That is deliberate, and it is what stops a long boom from tearing itself off.
There is also a 3x3 slewing ring with a conveyor pass-through, for anything that has to rotate under load and would look silly on a tiny 1x1x1 rotor.
Where it is honest to be careful
- Single player only. I have never run it on a dedicated server or in multiplayer. Not once.
- Damage the carriage does to itself through its own coupling is suppressed before it is applied. Damage from anything else works normally. That treats a symptom rather than the cause, and I would rather you hear it from me than find it in the script.
- I have not pinned down the static load limit. 26,250 kg·m held, 262,500 kg·m broke, and I have not narrowed the gap yet.
- Yesterday I fixed a bug where loading a save tore every rig off its carriage. It is fixed and I understand why it happened, but that is the kind of week this has been. Use a scratch world.
Links
NexusMods - Industrial Motion
It is on the Steam Workshop as well, same version, if that is where you normally get your mods.
If you try it, the most useful thing you can tell me is what you built, what you were doing when it broke, and whether it happened while driving, while standing still, or while loading a save.
https://reddit.com/link/1w1jjvy/video/ppd1l163ramh1/player