rotatable rectangular entity

[CyberWizard2261]

I made a 3x2 assembler to make hydrogen from heat, it should be peaceable like a heat exchanger but the game always places it in weird positions I made a hack to avoid this (made it placeable off-grid, made a heat-boiler fake entity and replace the fake for the true one using code) but I'd like to do it properly without this weird code is it possible? (I made this code some time ago and my knowledge may not be up to date)

[Klonan]

Assembling machines are special...

You need to give them a fluidbox (that is always on) for them to rotate properly