I found that the mount plate on the Ender 3 was very tight top and bottom when adding voron tap so I switched to a linear rail on my X Axis.
I couldn't find an MGN12C mount for the Ender 3 so I tweaked the backplate to fit.
I've used this with the Stealthburner and Dragonbuner with great results
i've included an MGN12H version as well
The author remixed this model.
Modified the original voron tap backplate to fit the Ender 3