What happens if the one of the hotends cools down to below printing temperature in a dual extruder situation? Will it clog the hotend? It may turn out to be necessary to cool down the hotend that is not in use inbetween perimeter and infill and to have individual hotend temperature controls for the different hotends during the various times of the prints including when it is not active. It may even be a good idea to let you specify to use each hotend every X mm.
I cool the inactive extruder to a standby temperature when it’s not in use to prevent ooze. The heating/cooling switch-off time can add up to make the print much longer, but you can’t argue with the results.
Try infill every X layers. I know skeinforge and slic3r have that feature. What slicer do you use that gives you a standby temperature. I think slic3r was going to add that, but I do not think they did yet.
Btw I do not have mine yet.
@Whosa_whatsis are you adding custom GCODE to do this cooling or is there an existing plugin that can be coerced into generating the commands? I’m pondering the question of whether to start fresh and code a plugin for skeinforge, or attempt to jury rig something for the current experiments underway.
I’m using slicer with the custom toolchange gcode setting.
Mind sharing the custom code? I assume you are using some variables in the code that slic3r is replacing on the fly so that the active extruder heats and the inactive extruder cools?
Slic3r version?
Kisslicer has a standby temp setting for this purpose (I think). Of course, you only get multi extruder support with the $42 pro version. It also has a wipe-pillar feature that primes the nozzle and clears any ooze strings when extruders swap.