Hot Bed Enclosure v2

This is an improved version of my previous design (www.thingiverse.com/thing:911708)

Additional features are:
Full access to the bed, even with the head in low position,
Easy assembly/disassembly,
Extended X-axis displacement.

Required power to maintain the bed at a temperature of 100°C:
(calculated from the duty cycle - tON/(tON+tOFF) - room temperature 22°C)
- without enclosure: 72 W
- with enclosure: 50 W (distance bed nozzle 50mm)
- with enclosure: 48 W (dis