Multi Filament without AMS

Source: Release 2.2.0 Public Beta · bambulab/BambuStudio · GitHub

@BambuLab Can you please do a firmware point release for P1 series printer (or for any printers for that matter) to enable this feature?

It looks like the Studio code has been around since March - see added line comment on m_supporting_mix_print.

Many would appreciate a timely release of the corresponding firmware, since it is not only a Quality-of-Life improvement but a real de-blocker for a lot of printing scenarios; especially those involving TPU pads and inserts that can’t be realized by a layer-based pause (edit: without a rather involved work around).

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I believe in the slicer you can set a pause, to switch filaments for layer level changes, but I cant imagine how tedious color changes would be on more colorful prints.

I still think it would be a good fix, and hope they do it. So I’m not trying to blow you off.

This feature is meant to be more than the existing ability to utilise the PAUSE command.

The existing feature enables the ability to swap a filament at the next layer by manually adding PAUSE commands.

The new feature (as I understand it) does the PAUSING automatically and can do so more than once in a single layer.

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@SupportAssistant Would you kindly take a look at this and ideally give us an approximate timeline, please? — I’m really struggling to make my current print project reliably work in any other way. I’m happy to try out beta-firmware, if need be.

Unfortunately, I do not have any timeline for when the next firmware update will be available, containing this feature.

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Yes, for many multi-colour changes, it would be very tedious. I have one print I do that would require only two layers of blue and red on top of a white base, meaning that I could do it with 4 filament changes to produce forty objects.

When I designed it, I solved the problem by printing three different colours separately. It took me a long time to design so the red could be added with the whole-layer pause, and blue dropped into place and glued. In that case, the tedium of designing and post process gluing fifty of them far outweighs the tedium of 4 colour changes.

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Could you please check with the team whether a private beta can be made available? — no known timeline for release seems unacceptable for something that is essentially (in end-customer lingo) a bug-fix rather than a “feature”.

I would supposedly rightfully expect - when buying a BambuLab - that it can do filament change as any marketable 3D printer can do, including manual filament change, if there’s no other relief (for example because the AMS does not support the filament).

This is a legitimate interest.

you can currently insert a pause in the slicer for a filament change in a build like you were saying. If you look into it, it might actually fit your need.

I dont use it, so I cant give you the details, or I would.

Good luck!

Unfortunately that doesn’t work, because these TPU are required to be precise flexible support pads inside another structure. For a demo I can CA-glue them, but that won’t hold for long.

I’d really appreciate attention from BambuLabs on this issue in such a way that production planning can somehow work around this. Custom filament change G-Code hadn’t worked for me.

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Hello @SupportAssistant. Are there any new on this topic? Could you please tell, if it is planned to add this feature to P1S?

Thank you in advance.

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I’m also curious. I would love to have it for some TPU + PLA / PETG combinations where a classic pause by layer won’t work.