SFEvo E3dv6 - i3 mega - Ultra compact cooling system 3D print model

Hi, this is the Scolopendra cooling system for e3d-v6 extruders that you can mount on your i3 mega. Ultra compact and efficient. I called it SFEvo (Scolopendra Final Evolution). I have been using it for more than 2 years on my C5 tronxy. This is the cleaned generic version of the trolley supports and with the holes adapted for mounting on the i3 mega. In the images you can see the clone mounted which respects the dimensions of the original E3d version.

In the videos you can see the e3dv6 generic version running on an Anet.

The SFEvo needs a spacing from the carriage to let the air out, for this and for the screws already present on the trolley you must use the adapter thickness. You also have to move the endstop of X, to do this print the switch adapter and the piece to be fixed on the carriage, you can see it in one of the images. However, you must have already modified your i3mega in order to have the front part of the trolley free. One of my first modifications does this, if you are interested you can find it among my published models. You can see the X endstop move in the 3th video of fanless version, around min 03:00

If everything respects the official e3d measurements, the beaks are at a height of 3mm from the bed. In case you need to correct the height of the nozzle (if you use clips to fix bed), there are washer shims for a maximum correction of 2mm.

It uses one 40mm fan which you can slow down to around 70% and thus is also less noisy (you can use around 100 ohm resistor 1/2 watt). If you use it on the i3mega you don't have to do anything because the fan is already running at a reduced speed. And use 2 x 30mm fans for cooling the print piece, I normally use 35% for ABS, HIPS and 70-75% for PLA. You have to connect the two fans in parallel (red wire to red and black wire to black). Don't worry any card can handle the load.

M3 screws are used for fixing, 15mm of the screw are inside the SFEvo. The distance between the holes is 53.5mm. For use with generic adapter (pictured) you need 2 M3x20mm screws and two nuts. When used on i3mega with i3mega adapter, there are 2 M3x30-35mm screws.

The holes for fixing the fans are 2.6mm, perfect to be threaded with M3, you can alternatively use self-tapping screws but I do not recommend it. You need 4 screws 10-15mm for 30mm fans and 2-4 screws 15-20mm for 40mm fan.

Optimized for 0,4 nozzle, print it at: layer 0.2 , 2 perimeters , top/bottom 1mm , 25-30% infill , no support , print it in ABS, PETG, HIPS