Advice on my watercooling setup

[elmoret]

The Stratasys chamber is sealed. It used one four inch fan to blow air over the back of the extrusion head, 4X4 inch fans to circulate air and one four inch to blow air over the printed material on the SST, the BST doesn't have a fan to blow the print,. The temperature is 70c and is fixed under normal use. It is possible to change it but only by "hacking" the machine and I have never found a need to, 70c is optimum for ABS, I have tried lots of temperatures above and below but 70 performs best.

Stratasys motors are outside of the chamber. Stratasys doesn't print PLA, if you're ABS only you don't need cool air on an E3Dv6.

[Mjolinor]

Stratasys motors are outside of the chamber. Stratasys doesn't print PLA, if you're ABS only you don't need cool air on an E3Dv6.

Stratasys 768 motors are inside the chamber.

PLA is possible if you change the temperatures.

[elmoret]

PLA is possible if you change the temperatures.

Is that speaking from experience or a personal hypothesis?

Stratasys printers don't have a heated bed, so you'll have trouble printing PLA on them - either you'll have to heat the chamber and the hotend will jam, or you'll have to print on a cold bed and you'll get part warp.

PLA has a Tg of 60C, which is where you'd want to set the heated bed (but you can't, and setting the build environment to the polymer's Tg = jammed hotend)