Idea for doing multiple extrusion with one extruder

[LesterCHall]

Ah, thanks for the encouragement Geoff, and glad you liked that design!

Les

[curious aardvark]

there are a few new(ish) printers that use one nozzle and dual filaments.
Not sure how it works, but I've defintiely seen 2 companies with printers that work on that principle.
I'm presuming some kind of valve setup, no actual melting tube you'd probably need to melt within the nozzle itself - or use a lot of pruging between changing filament and clever retraction.

Unless you've got a delta printer it's probably a better option than printing one part and then printing another part seperately but inside it.

In cases like yours - it's probably easier to change the design to something easily printable without supports than to print twice.

[LesterCHall]

Yes Aardvark, I am in agreement with you it sounds like a better option. The technique proposed here would only be useful in the event that your alternative was not a possibility.

Les