Adjustable Eject Filament temperature in Advanced Mode

[David Janszen @djanszen Ohio]

One of my materials tends not to release regardless of repeated trying when using the standard 140°C head temperature set by the Eject Filament routine. When this filament breaks and won’t release, I’m forced to use the Eject Stuck Material routine which resets the job, wasting the time spent up to that point on the job, which has typically been at hour three or four of a six or eight hour print, and scheduling the next attempt into the next work day and thus wasting that day and delaying development work by a day on each such occasion.

The solution for me would be to goose the temperature up. I’m pretty sure that 150°C or 155°C would do the trick, and in the interest of preventing demented end users from increasing your support inquiry rates by setting ludicrous temperatures, CEL could limit the maximum to, say, 160°C, or even to the initial Eject Stuck Material temperature of 180°C, or whatever temperature would tend to allow material release in borderline cases without leaving a fine string of material in the Bowden tube.

[BHudson @bhudson I have both RoboxDual and other Robox versions Arizona, USA]

@djanszen I have a similar behavior with high strength nylon. I have found that heating the head manually to 170-180 C and pulling the filament back 20 units with the manual control button or ejecting with gcode then gives a nice clean removal. This does require that I either watch for the end of the filament or make sure I don’t run Eject Stuck Filament.

I agree that a different ejection temperature slot in the material data would be helpful for custom materials.

I operate two Betas and four Production Robox.
I am the US/Canada Technical Support engineer for the Robox.
www.hudsondesignlabs.com

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