MekMMMekanism Multiblock viewer — preview reactor / boiler layouts in-world

Version: 1.3.2 · MC 1.21.1 · NeoForge 21.1.228 · Java 21

About

Companion to JEMM. Renders a translucent ghost preview of a Mekanism multiblock at the spot you're aiming at — so you can see where every casing / port should go before you place a single block. Indispensable for the Fission Reactor + Boiler combo.

Things to do

Getting started

Toggle via Controls.

Official documentation