I have been looking at enclosures for my Taz 6, both actively heated (reptile heater) and passively heated (build tray only). I like what I am reading in terms of the reduction in part warping. However, one item that I would like to address is the hot environment since that’s not great for the stepper motors. Therefore I’m looking at peltier coolers (digikey, adafruit, etc.) that I would stick on the steppers. In addition I would pick up several temperature sensors and attach them to the steppers, plus one in the build environment. I work in a lab so I would control everything using a National Instruments chassis and a switching power supply I have lying around, plus a simple labview program to display and control everything. Before I start ordering parts to do all of this I have a few questions:
Has anybody experimented with peltier coolers before? Thoughts/recommendations?
How hot is hot enough to minimize part warping? I gather from reading a bunch of posts that maybe 40 C is sufficient. The stepper motor data sheet says 50 C is the maximum acceptable ambient environment so I consider that to be a hard upper limit.
Does the enclosure need to be vented? (I mainly print ABS but will probably move to other materials eventually). Does the venting cause drafts that increase warping? Passive or active venting?
Any other parts that I need to be concerned with overheating if the build environment is closed and heated?