Hi Guys - I am just curious if anyone else is experiencing the same; both the love and the hate. - I have (4) Prusa MK3s printers that I have been using for years and definitely went into this new experience with certain expectations and was really impressed with what I have seen by the Bambu influencers.
I just wanted to start a thread to collect individual “things”, “issues”, “nuances” as they happen to me since I started using it and see if people have experienced them as well and perhaps have possible solutions. (The list assumes all default out of the box calibration, settings, system presets etc.) Note I have only been using new spools of Bambu and Overture PLA.
Not in any particular order:
- LOVE - when it works, it does work great. I was able to use the AMS with the CMYK kit and print a lihophane - with no issues. I was also able to print the black frame and purchased the LED panel too - everything was default, out-of-the-box.
- HATE - Inconsistent adhesion with PLA and cool plate - at times, either the print is very difficult to remove (yes I used glue) or does not adhere, nothing has changed from print to print - yes I cleaned, hot water soap, 99% PLA etc. What it looks like to me, is that the z-index is not always the same at times. I stop the print and start over and then it works - sometimes adheres too well, sometimes just right. I dislike that you can’t adjust the Z on the machine. I saw the Bambu engineer’s comment in Github as to why they don’t allow that - but every printer I have used (Anycubic, Lulzbot, Prusa) has given you an option to adjust the z. I am not convinced the auto-calibration is always working correctly. I know you can change the start z-code - but not ready to start messing with that just yet.
My solution: I noticed using the engineering plate with PLA, 65 bed temp and 215-220 first layer (no glue) seems to work well. I have not had any failures and the objects I am printing are very thin - like .60mm to 1mm and the engineering plate leaves a nice smooth 1st bottom layer.
3: HATE & LOVE - went to change the complete hot-end to use a different nozzle and the larger 2 prong JST connector pin popped out of the housing, The connector pin was bent - I fixed it but reported what happened - Bambu support replied within a few hours and is sending a replacement. So I am happy to see their support is responsive. I think switching out the complete hot-end assembly like I have seen in some influencers videos is easy, but I am suspect that continually doing this won’t be good for the wires and connectors.
4: LOVE - the AMS for me as worked flawlessly - even with cardboard spools - I bought the hub and 2 more AMS units - I can’t wait to try more colors.
5: HATE - I swapped over to a .80 nozzle (adjusted all settings) and walked in and the print must have came loose and shifted - I was printing on a textured plate with the same settings I used in the past though adjusted for the .80 profile - the print started out well and 2 hours later the bottom half was adhered but the other layers were busted - you have to see the pics to see what happened:
I am thinking the nozzle hit one of the overhangs and knocked it loose?? I didn’t have time-lapse on so I can’t exactly tell what happened.
OK - I’ll stop here and add to this thread as I experience things. I want to love it more and learn how to get it dialed in from the experts like you. Thanks for looking, have a great weekend.