RATRIG V-core3 SKR proV1.2 cooling 6060 fan

Modular mounting design for a BigtreetechSKR pro V1.2 on RatRig V-core3.

Duct for driver cooling to mount a 6060 fan ( mounting holes THD is 70.71mm, or verify from centre to centre 50mm ).

There are 2 different “fan covers” wich You can choose from.

Hardware list:

• 2 M3x25 cap head screws
• 6 M3 locknuts
• 11 M3 nuts
• 4 M3x18 cap head screws
• 4 M3x10 countersunk screws (cap heads are fine too)
• 4 M3x12 countersunk screws (cap heads are fine too)

Printing settings and materials:

All the pieces can be printed in PETG/ASA/ABS.

NO SUPPORTS NEEDED.

In PETG just be mindful of stringing. This can be “sucked in” by the fan and blocking it.

PETG: 

• Speed=60mm/s
• Layer height=0.2mm
• Infill=20-10%
• Walls=4
• Top/Bottom=4
• Cooling fan=15%

ASA:

• Speed=60mm/S
• Layer height=0.2mm
• Infill=20-10%
• Walls=4
• Top/Bottom=4
• NO COOLING FAN

Preparation and installation:

1. Get the “SKR_pro_V1.2_mounting” piece and insert 7 M3 nuts form the bottom. (they should have a tight fit)
2. Mount the Board itself on the mounting piece “sandwitching” it together witch the electronics panel of the RatRig.
3. Tight the 4 M3x18 (wich are holding the board and the modular “chassis”) with 4 M3 locknuts.
4. Get both “Spacer_ducts” and mount them to the “chassis”. The allen key should go trough the top holes.
5. Insert 2 M3 nuts for each “Spacer” from the bottom and backpull them into place.
6. Get 2 M3x25 cap head screws, insert them trough two holes of the “Cover_6060_fan” you have chosen and insert them on to the 6060 fan holes. (there are 4 rised section that have to be mounted towards the fan)
7. Install this sub-assembly on to the “Driver_cooling_duct” securing everything with 2 M3 locknuts.
8. As the final step mount the assembly on the two spacers using 4 M3x12 Countersunk screws (cap heads are fine too).
9. ENJOY.

I know that the wire managment is “awesome”.

I'm currently working on the printer.