This is the FINAL release of the BackCooler for the CTC Bizer (I've not tested with other printers, so you can test it for me and tell if something is not right), this cooling system can be applied in the rear of the printer. This thing was successfully tested and corrected, this will be the final version.
The reason why I designed this is because there is no space for a REAR or LATERAL sensor mount, and since I was using the thing (printed) from where I remixed this one, I decided to design and test a rear cooling system, completely remixed.
First I decided to go to the smallest blower that could be found on the web, I've found a 40x40x10 blower fan, 0.06Amp, 24volt, the dimensions where ok with what was needed, I have really no space in the rear If I don't want to shrink the size of the Y axis and don't want to modify the end stop, with a caliber I found out that by using 11.2 millimeter, the blower nor the thing will HIT any part in the back side, so, the piece is 11millimeters, 0.2 is for the tollerances... 0.5 for the walls, 10millimeters for the air flow, that reduces to 5 millimeters in the smallest part, with walls always of 0.5mm.
I begun designing the project, waiting in the meantime for the blowers...And they finally arrived, as you can see in the photos! Now I've fixed my initial project with the real mesurements, and this is the final result.
Please, remember that since in the rear of the blower there is a wall with 0.47mm, it's a good idea to impose the minimum extrusion width to 0.4mm (simplify3d)
For the MAIN part:
No supports needed, no raft, 100% infill, cooling would be necessary for the final 100 layers (if 100 microns), because of possible deformations, possible alternative solution is slowing down printing speed and lower a bit the temperature of the extruder.
For the CLIPS:
Supports needed in the U part, since it can't be printed otherwise, no raft, 100% infill.
Suggested material is ABS or other MORE HEAT RESISTANT THAN ABS (nylon, but it isn't tested for now).
Don't use PLA or low temperature materials! It won't work as expected.