Re: First Motherboard

Aha NoobMan, so basically, if I follow your reasoning, the problems I had with my crispy MOSFETs could have been avoided by simply editing the line in my marlin that enables PID for the bed?:

// Bed Temperature Control
// Select PID or bang-bang with PIDTEMPBED. If bang-bang, BED_LIMIT_SWITCHING will enable hysteresis
//
// Uncomment this to enable PID on the bed. It uses the same frequency PWM as the extruder.
// If your PID_dT above is the default, and correct for your hardware/configuration, that means 7.689Hz,
// which is fine for driving a square wave into a resistive load and does not significantly impact you FET heating.
// This also works fine on a Fotek SSR-10DA Solid State Relay into a 250W heater.
// If your configuration is significantly different than this and you don't understand the issues involved, you probably
// shouldn't use bed PID until someone else verifies your hardware works.
// If this is enabled, find your own PID constants below.
//#define PIDTEMPBED

However, and although I ignored this particularities as a beginner (PWM? PID? OMG!!!), I am checking now the firmware given by the provider and i can see that PIDTEMPBED was disabled...8-)...hmmm...can you please point out what am I missing?

Thanks!