This is a MGN12 mount for Titan direct extruder. E3D or TEVO or CLONE.
Riding on top of the block. not on the side. and the belt is in the back. This is just motor mount only.
Perfect with https://www.thingiverse.com/thing:2567757 BLV mgn12 X-carriage. Instead of installing BLV X-carriage upright where the belt is on top, just rotate the motor mount 90deg so that the belt is on the back. No modification is needed for this. just install in different orientation.
Fan shroud and fan duct. Pretty much whatever float your boat. What I am using is https://www.thingiverse.com/thing:2561295 Tevo Tarantula Dual Blower Fan Duct for E3DV6 or Volcano + Titan for Direct or Bowden.
There is nothing wrong with older verions. Just more options for you to choose from if you have the parts, and only if you have a problem with your rail block for having too much plays. I'm a tinkerer. I like options =) Version 3 is highly recommended. Very smooth, no plays, and LIGHT! Superb quality!
- Added version 2. This version redesigned to eliminate vertical plays from your MGN12 rail block by moving the motor 10mm to the back to redistribute the weight and utilizes the belt tensions to keep the nozzle from "bobbing" up and down.
- Added version 3. This version is for a smaller step motor, designed to use a stock wheel to grip the V-slot on the 2020 extrusion to eliminate vertical plays. This wheel works as a brace so DO NOT over tighten the bolt, just enough so that you don't feel it anymore when pushing the extruder with your hand.