Yesterday was searching all over the web for replacement vials, cant find any decent price, specially the ones with ml marking are expensive.
On one of the page I found a commercial/medical tube mixer/shaker.
This morning I set up to make my version of it :p
10 hr later, 2 failed prototype, 2 more broken vials, 1 broken drill bit, some band-aide on my finger I have a working model.
Its not finished YET, but this one works.
The motor underneath is from a old video game controller, the motor RPM and direction change ~randomly in every 200 ms to 800ms, a single drop of calcium test will mix instantly. in my previous version the glue did not hold to long so this one is JBwelded.
The whole unit is sit on 4 rubber hose.
I'll try to make some video in the next few days, unfortunately have to work on this weekend.