I’ve not yet looked at the chiller’s options, but that is definitely a good idea!
Splitting my rare free time between modding my new 3D printer and the FABkit… 
Actually was running both at the same time today!
Just not certain all these things can be supported in GRBL for the Smoothie though…
I think it should be possible but you have to build a new firmware version. Not as simple to update like smoothie and the modules. Cool what printer you get?
An Anet A8 (Prusa I3 clone)… It’s my 2nd one, first was a 101Hero (Kickstarter)
How did the 101 hero turn out? Can’t go wrong with a Prusa. Solid starter machine.
It’s a decent printer… The calibrating was a challenge, but hooking it up to Repetier via USB to be able to send the head to each pillar made it much easier
There is a teeny bit of a height difference between the pillar locations and the points in between, with the apex right in the center! If you’d print a flat plaque, it’s be a bit convex (probably about 0.2-0.3 mm difference between the lowest and highest point!), but once calibrated it prints nice, if a tad slow-ish!
It helped though that I already had 3D printing experience, or I probably would’ve thrown it out of the window in frustration!