In summer, I need to heat my router to achieve better working conditions. I try to achieve this goal with less consumables, and it can be easily disassembled and assembled. I didn't use the filter because it doesn't touch the work area under normal circumstances.

Fan size: 90 * 90mm

Thickness: 25mm

Hole spacing: horizontal 82mm, diagonal 117mm

Flat head screw: diameter 4mm