Is there any way to stop the wasteful purging for each print? P1P

DELETED as I found the answer elsewhere

What was the solution?

There was a tip for reducing it here

When I found that bit in the gcode I ended up just deleting part of it

Has been working fine on my 4 printers for 24 hours now.

1 Like

I think maybe why it “wastes” so much filament during the purge is that it needs enough of it for gravity to assist by pulling downward on the filament during the wipe, resulting in more of a clean break, and also further helping for the filament to fall down the shoot.

Printing in multiple colors is where the massive piles of filament you see pictures of.
Stop printing multiple colored prints and your wastage will go almost to zero.

If you have a mu!ti-colored print that is say 100 layers and each layer has 4 color changes I think that equates to like 400 of those little balls of filament.
And the time to print that multi-colored masterpiece just explodes.
You have to ask yourself do I REALLY need this to be multi-colored or will a solid color work.

I wrote a long thing but realized this post was specifically about the waste at the beginning of the print. For the general approaches to reduce waste on filament changes, see the video “Reducing waste from Bambu Lab AMS (lite) prints” by creator “Teaching Tech” on YT. It needs updating for the new (experimental) “long retraction when cut” option in the “Setting Overrides” tab of edit filament but honestly, what’s there is already very good.

My summary was, “print alike colors together, fiddle with the purge volumes and enable purge to infill when you can, long retract if you like to live dangerously, and use the post–slice preview screen to evaluate the effectiveness of each adjustment.”