Also does it now via the LCD pause function, or manually from the console of Repetier in between jobs.

Also if you moved the extruder using manual commands, it stayed switched on already. this way you can do both.

This command takes the format:

M602 S[0|1]

S0 disables the extruder stepper motor; S1 enables it (however, any extruder move auto-enables the motor, so its superfluous really).

With the motor disabled, and the extruder at temperature its possible to very easily manually retract or extrude the filament. To replace it, simply pull out the old one, and insert the new one. You will need to momentarily relieve tension on the tension arm with your fingers, or if you have a mk4, simply unclip it when inserting the new stuff.

You can then extrude as much as you want or manually prime the extruder by simply hand feeding filament.

And voila! filament is changed as quick as a jiffy - as you can see in the video I can swap it over in under 10 seconds !

This short video should help demonstrate what I mean a bit clearer:

The M602 command is complete, but you will need my current Beta firmware over at http://www.soliforum.com/topic/2470/bet … t-chg-etc/ . I still need to work some kinks out in the M600 command (separate post). Once this is completed, I believe this will be merged into lawsy's repository as well.