Enclosure for Anycubic I3 Mega

This is an enclosure for Anycubic I3 Mega 3D printer.
It is based on "Square Tube Connectors / Joints + Plexiglass support" that you can find here: https://www.thingiverse.com/thing:2927377.
I added here also two support, a and b, that help to place the enclosure over the printer.

This is a work in progress and I have not yet tested how it works.
I'll be back with update soon.
I also plan to add a fan to force the air through a filter.

Bom:
4 pcs of aluminium square tubes 15mm x 15mm x 472mm
4 pcs of aluminium square tubes 15mm x 15mm x 416mm
4 pcs of aluminium square tubes 15mm x 15mm x 375mm
2 pcs of plexliglass or polycarbonate sheet 468mm x 371mm x 2.5mm
2 pcs of plexliglass or polycarbonate sheet 412mm x 371mm x 2.5mm
1 pcs of plexliglass or polycarbonate sheet 468mm x 412mm x 2.5mm
8 pcs of Joint-a [Note 1]
24 pcs of Joint-b [Note 1]
24 pcs of Joint-c [Note 1]
24 pcs of GlassSupport-a [Note 1]
80 pcs (about) of GlassSupport-b [Note 1]
2 pcs of support-a
2 pcs of support-b
24 M3 screw (size 30mm)
24 M3 nuts

The enclosure in the picture is made using an old release of GlassSupport-a. The new one has a 45° chamfer and do not left uncovered aluminium near the corner.

Note 1: you can download it from here: https://www.thingiverse.com/thing:2927377

UPDATES:

1. 27/May/2018
   a - I updated the measures increasing the X dimension of the box of 2mm to best fit the printer.
   b - I made a first test printing PLA and I had a bad surprise. The feeder motor get too hot and sometimes melt the filament :-( I need to find a fix.

2. 28/Jun/2018
   I think I fixed the issue of melting filament adding a fan to the extruder motor. If you are interested you can find here the case I used to mount the fan: https://www.thingiverse.com/thing:2976030