Good day,
I'm currently working on PCB where I will mount 4 x Pololu
DRV8825 /
A4988 stepper motor drivers.
Standard height 2.54mm pitch female header on PCB and A4988 plugged into it. Those chipo stepper motor drivers do produce quite a lot of heat.
Driver it self has exposed solderable ground pad with vials to help it dissipate its heat.
Im looking for a solution to aid in heat dissipation from those drivers on my PCB. I have considered a few options:
1. Cut out underneath the driver board - since my PCB will be mounted 2cm above the case I think it can aid in air circulation.
2. Go for the same solution as on the driver board it self - go nuts with vials.

Any tips and trick would be highly appreciated.