3 Leg SDA (Spider Developer Agitator)

Hi
Instead of using the small pin to agitate (or invert the container) I designed a stirrer agitator to do automatically agitation. I´m using a Paterson Super System 4 tank but the legs can be modified for other.
I use a 5V stepper from an old printer. Using a PICAXE-08M2 microcontroller to ctrl and a stepper motor module (A3967)

I have my powered from an USB power bank (IE JBL speaker as I like to have music also :) )


*********** There are some reports that using the agitator pin generates un-even negative, especial close to spooks ***********

Was thinking of adding a agitator propeller below/over


Making a sheet film insert for Paterson tanks that I will use with this one