>finally get Marlin config to work on 3d printer with a board swap
>think I'm home free
>first test print shows fairly accurate dimensions in X and Y
>Z-direction total object height should be 2cm
>halfway through the print it's just a melted squarish blob with a height of no more than 4mm
>kill print

Anyone have any ideas? I tried changing steps per mm in my EEPROM just to get Z to move the right amount, the value I had to put in was 1600 steps/mm. I know this can't be the right way to do things.

Could it have anything to do with the fact that I'm running dual Z motors through a single connection? My printer used this config before the board swap, so on the new mainboard I just plugged in the single Z connection.

Is there any other way to adjust scaling and movement stuff in Marlin that is not steps per mm?