Re: LISA Simpson

Heated Enclosure:
I plan to use translucent acrylic for the side panels, and for it's insulative value.

All electronics less the extruder stepper motor feeding the filament will be
located outside the heated enclosure.

Here you can see that Lisa stepper motors are located outside,
and below the enclosure, same with the electronics:




I'm going to heat the enclosure like a laboratory convection oven.
A squirrel cage or CPU fans will evenly circulate warm air.

If it helps, I'll also direct warm air into the center of large hollow body objects.



If warranted, the extruder stepper motor will have a heat exchanger harvested
from a laptop CPU bolted to it with CPU thermal compound.



If the heat is too high for the extruder stepper motor, I'll place the heat exchanger
in a closed-circuit corrugated tube, and circulate cool air past the heat exchanger.

If warming of the filament turns out to be an issue, I'll run the filament in an insulative sleeve,
the type that is commonly used on warm water piping.