Hot Bed Enclosure V3 by xavan

Last crawled date: 3 years ago

Issues of warping and cracking in ABS printing can be solved using a Heated Build Chamber. This kind of chamber is bulky and all the components of the printer (plastics, electronics) undergo a high temperature.
The principle of the proposed solution is to build a heated enclosure around the hot bed, and not as usual around the printer.
The expected advantages are:
Printer parts -electronic components,motors . . .- work at room temperarture,
No need of extra heating,
Less power to heat the bed (up to 50% less).
The enclosure consists of three main parts:
2 insulation sheets that cover the entire hot bed,
2 side plates attached to the printer frame,
and 2 Z shutters which follow the movement of the X axis.
Insulation sheets (upper covers) and shutters of the enclosure are fixed to a support consisting of aluminum angles and plastic parts, itself fixed to the X axis rods.Front and rear covers consist of 3 layers of mylar film, PE foam and aluminized plastic film.
see video: https://youtu.be/211JHkUjk4k
This is an improved version of my previous designs:
www.thingiverse.com/thing:997467
www.thingiverse.com/thing:911708
Additional features are:
Improved insulation,
Simple and easy install/uninstall (nothing to unscrew),
Angle distance adjustment.
The X shutters of the previous designs are suppressed and the distance between the angles is reduced to limit the heat losses.