[Ultimaker With Skr 1.4]

On 6/15/2020 at 12:12 PM, Porkpie said:

thanks anthrix for your findings! to take things a little bit further, i did some work lately on this particular topic, and these are my findings so far:

1. have some freewheeling diodes added to the PWM outputs of the SKR V1.4 to avoid overvoltage damage to the output MOSFETs:

bigtreetech-skr-v1-4-turbo-freewheeling-diodes

2. also, do _not_ use smoothing capactors on PWM outputs. this is simply bad practice that puts a lot of  extra stress on the MOSFETs. instead, use proper PWM settings in your MARLIN configuration.

3. TMC5160 drivers should have stealthchop enabled, but _disabled_ through the printer's config menu. this reduces noise of the steppers.

4.  it took me quite some time to figure out the basic settings in MARLIN 2.0.5.3 to make it cooperate with the skr1.4 and the UM2+. besides that, you need some extra hardware to properly connect the PT100 sensors and the hotend-fan to the board. see more details on my github:

Marlin+SKR1.4+TMC5160+UM2plus

 

 

 

 

Can u please share the stl for the power supply mout?