Fixed the different holes from the original bracket, since it was a remake I took the exact same design holes, so I measured with a caliper the original holes and they were slightly different, now they are equal and fixed!
Added support bracket for this linear chain http://www.thingiverse.com/thing:1905344
I reworked the design to recover work space, the distance between the extruder and the floor is now 2cm, 1 cm less than the original, so we still another 1 cm more in addition to those recovered from the previous work, in total 4cm.
Measures the distance of the extruder head, my measuring 5.5mm as you can see in the picture.
I attached two files, one for the head of the thickness of 6mm and one for those who like me have a thickness of 5.5mm.
There is also a test print file to check the size, the file is for the thickness of 5.5mm
You need 2xM3 30mm and 2xm3 nuts for lock parts.
Of course you can mount stock hesine radial fan.