I have just finished modeling a toy car shell with dimensions of 83x42x23 in 4 colours
Bambu slicer claimed using the highest quality on a .2mm nozzle would take 67 hours. Although I thought that was a bit long I had no issue in accepting it…until I found the the flushing volume auto-calculated by Bambu studio of over 600 was not only taking minutes, it was also causing the flushing blob to sometimes not get sent down the poop chute.
With a bit of experimentation I found that flushing at around 150 was giving good results, almost halving the time and solving the flushing issue.
Obviously I am going to have to watch out for this in the future but wonder how Bambu Studio could be so far off the mark as well as causing issues.
I normally use .4mm nozzle and rarely use .2mm and never seen this issue before so wonder if something has changed recently.
I too don’t like the automatic flush calculation. Even with a 0,4mm nozzle, the calculated volumes are useless. Especially because it only looks at color but not material. If i print with support material I want to be absolutely sure that not the least carries over into the primary material and I couldn’t care less if it is green or purple.
I’m not surprised that it doesn’t make a difference of the nozzle size.
Thanks the thread does indeed seem to be discussing the my issue with 0.2 flushing volumes. I am not the Makerworld project provides a clear solution for my 0.2 problem but I will have to do some reading and spend a bit of time looking into this. Ideally Bambu should be looking into implementing some kind of multiwipe logic into the slicer.
I struggled with it a lot when I got the printer, still do on occasion…
Take two totally different cases…
Complex model with lots of colour changes.
Simpler model with material changes.
For the first I want a CLEAN colour but can’t really be bothered with some of the previous filament making it in the print.
For the second however it could be a disaster if the old filament is not fully flushed.
I would really like a feature to allow a user to calibrate the actually required volumes and to store these values - either on the machine or together with the filament settings.
I ‘upgraded’ from a dual head machine.
Back in the day it just made a lot of sense to me having two individual extruders and hotends.
My main materials are PLA and PETG, Nylon if I have to…
Was quite disappointed when I realised the Bambu is producing far more waste than my dual head with prime tower.
It is just a pain in the behind having to tune those flush settings for every filament and colour in order to get acceptable poo piles…
In hindsight something that actually fuses the filaments to run it through a single head makes more sense but sadly won’t allow for different materials to mix this way.
The AMT_MW gcode mod totally solved my problem. My only question is that given that it includes a partial retraction prior to cutting how will this affect the filament saver that is in the new build of Bambu Slicer (that I am currently holding off installing).
A bit late but…
So far you do not need to hold off installing a new version of Bambu Slicer for that matter. Even in the current v1.9.3.50 it still is an experimental feature that you need to activate manually before it takes effect.
