Jacket liner is connectors short of being ready for field test.
Labtest was a success! Plenty of heat distributed evenly.
Now I just need to install potentiometers and close the box to get controller prototype ready for road test.
And here is the mechanics module for the cold smoker:
Scrap parts from who knows what and some machined aluminium. Next I need to fabricate guides and pusher parts out of aluminium (actually they are ready, see that L-shaped piece underneath and C-shaped piece in back...).
One big question remains until the first test:does that puny stepper motor have enough oomph to move wooden discs to burner?