Have been loving my X1Carbon for the past month and have finally gotten to the point of testing out materials other than PLA.
The included Support W was great so picked up a roll of Support G as I’m moving onto ABS and PC.
Turns out I didn’t read the compatibility list properly because I’ve just realised that ABS is supposedly incompatible with Support G.
Did a couple of test prints and it worked really well though.
Is this potentially an error with the compatibility list or did I just get lucky?
Hoping it also works with the roll of PC I picked up too.
That is a PA + Support G print from today. I used 3 layers Support G, as you can see it came off as a single “sheet”. (The outer cylinder is only 10mm).
There were a LOT of changes from the default filament profiles and print settings. I am still trying to get the “prime tower” to work a little better and I’ll post the .3mf files with “profile inside”
I really like using PC and it is great to have a support filament! I think the same “trick” will work for ABS. Thanks K.dot for a great idea!
It turns out that colour printing on Bambu can likely also be improved using this technique.
What I found is that each filament has a “Recommended Nozzle Temperature” field and for “Support G” this range is 260C to 300C. It turns out the firmware uses the MAXIMUM temp (300 degrees) to purge. This leaves the hotend full of very hot plastic that will wreak havoc. Before each filament is loaded, before the print, it looks like the system purges using the MINIMUM temp instead.
The other related issue is turning on some kind of print cooling for the Support G, by default there is no fan at all, no wonder everything just melts. Support W filament profile does use 100% fan as a default.
Another related issue is that when you use support, the first layer that prints after the support is actually another “Bottom” layer and it uses everything as if its the first layer, including “no cooling for 3 layers” setting, and so you have to turn that off too to get a cooling fan.
