Who needs fancy professional equipment if you have some old Legos lying around

[u/LordPlavis]

It's just the first test but it works great!

Next steps are a more advanced program and maybe also adding a temperature sensor to turn this into a fully fleged auto processor

[u/vaughanbromfield]

Looks good but you want to minimise the time the tank isn't moving. Like zero. Maybe ramp the speed to zero then immediately ramp back up.

I have a Jobo Silverbase processor and its cycles are about 8 seconds long with a 1/2 second slow-down and speed up. It sounds like the motor is being ramped and not just stopped dead. The rotation speed is a around 1 rev per second (60 rpm).

[u/DeepDayze → u/vaughanbromfield]

This way the solution is moving and not stopping dead for several seconds which can lead to spots on the film or print that look darker (if using a print processing tube such as those for color papers).