Hi,
I want to install a bigger heat sink for the A4988 instead of the 9x9mm standard ones.
My problem is that despite all precautions I'd managed to burn two so far. I don't think it was a short circuit neither did I disconnected the driver while power was on. The motors stopped suddenly and the small heat sinks were very hot, so I think the power dissipation for my 24V steppers isn't enough.
I was wondering if I can connect a bigger heat sink directly to GND like in other drivers such as the L298N or maybe to another pin. Really need someway to cool down the drivers.
(Some extra information: I'm already using a 12V fan directly above the drivers. Where I live it is damn hot.)
Thank you in advance.
I want to install a bigger heat sink for the A4988 instead of the 9x9mm standard ones.
My problem is that despite all precautions I'd managed to burn two so far. I don't think it was a short circuit neither did I disconnected the driver while power was on. The motors stopped suddenly and the small heat sinks were very hot, so I think the power dissipation for my 24V steppers isn't enough.
I was wondering if I can connect a bigger heat sink directly to GND like in other drivers such as the L298N or maybe to another pin. Really need someway to cool down the drivers.
(Some extra information: I'm already using a 12V fan directly above the drivers. Where I live it is damn hot.)
Thank you in advance.