I just got a Duet 3 expansion 3HC

[Mr Yod]

Like the title said and it's cute!

I didn't think it was so tiny.
What's funny is that I paid it about the same as the Duet 3 6HC (since the mainboard was used and the expansion new).

Ok, well, nothing: I'm just waiting the end of the neverending bed PID autotune...

[dc42]

@mr-yod autotune for hot end heaters is normally quite quick. It's slower for bed heaters, especially those with high thermal mass that cool down quickly.

[Mr Yod]

@dc42 Yes, I saw that: over one hour for a DC 300*300 bed autotune and less than 10 minutes for the hotend...