The PlasmaBot 3.0 came in two flavors - Basic and Ultimate.
The Basic version utilizes fixed motor mounts thereby allowing the pinion gear to lock down the gantry from upward forces such as when a router is used. Because of this feature it was classified in its description as a plasma/router gantry kit.
The Ultimate version utilizes the spring loaded (back-lash free) motor mounts. This machine was classified as a (plasma only) gantry kit because it can not lock down the gantry from upward forces.
To utilize the Ultimate kit for routing purposes simply involves removing the (red) pressure loading springs thereby losing the back-lash free feature and allowing you to lock down the motor mount as shown in the image below:
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