The hot end set-up for my printer consist of 2 Titan Aero extruders. The printer relies on Reprap firmware and a Duet 3 controller board. When I finish setting everything up, my primary extruder will use ABS and my secondary extruder will uses HIPS.
If the model I am printing only has supports near its base, once the supports have been completely printed, will the secondary extruder remain hot/at its printing temperature setpoint until the entire print finishes? Or has this been worked out.
Even more specifically say the HIPS extruder isn't needed for several hours during a print. Will it cool down and begin heating up when its needed or just slightly ahead of time?
I feel like the HIPS filament left over in the extruder would be ruined after this and likely to clog going forward.