Strange coloreffect with printing demo dog on A20M

[Danny.B]

Hello all.
Yesterday i received my first dual color 3d printer a Geeetech A20M.
I mounted a roll of black and red filament and start printing the dog that was was on the SD card that came with the printer.
I dit NOT messed arround with any settings and while printing the colormix went slowly from 100,0 to 0,100.
So i expected that the dog would be black at the bottom and red at the top with gradients of brown in the middle.
Instead the front of the dog stayed black while the back of the dog turned brown.
It's not that it's a problem but i want to know how it's possible. Can anyone explane this?




Greetings

[William]

Hi, maybe your extruder setting is reversed and this happens.

[Danny.B]

i Think that, while mixing the colors of the two filaments the print at 2cm hight would be the same color around the entire print.
With the dog i printed the back starts to turn red above the tail while the front stays black until the printers starts printing the head.
That seems strange to me.

Greetings