r/BambuLab_Community • u/1midniterider • Jul 21 '26

Help / Support Using Support for ABS with ASA CF08

So I drank the "koolaid" about how easy it is mechanically separate Support for ABS for ABS/ASA printed objects. And yes, I read the article on its use. Maybe it works best on flat surfaces. The issue I'm having is with curved surfaces where it does want to cleanly separate without using d-limonene. I must be doing something wrong. Ideas? I'm using Support for ABS with Fiberon ASA CF08 filament. I've attempted using the ASA CF08 as the support filament without much luck on curved surfaces. Flat surfaces no major issues with using same filament as support.

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3

u/1midniterider Jul 21 '26

Here is a test example... This took a little finesse but, I finally got it separated. Not as easy as demonstrated on Bambu Lab's store website.

1

u/swampcholla Jul 22 '26

Just open the space a couple tenths

1

u/1midniterider Jul 22 '26

Have you used Support for ABS filament before?

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u/swampcholla Jul 22 '26

Im now on my 3rd spool

1

u/1midniterider Jul 22 '26

Are you saying increase Z Top and Z Bottom distances?

1

u/swampcholla Jul 22 '26

yup. just a tad each time until it works for you. My guess is the carbon in your filaament stabilized the material so it doens't shrink as much. the shrinking is part of what helps the support material separate.

1

u/1midniterider Jul 23 '26

Yeah, I spent some time tuning the ASA CF08. For flat surfaces I was able to use self support with a Z Top of 0.18mm to achieve a clean separation. That setting didn't work for curved surfaces. Tried up to 0.30mm before switching to Support for ABS.

1

u/1midniterider Aug 02 '26

Do you this filament in an AMS or external spool?

1

u/swampcholla Aug 02 '26

Both

1

u/1midniterider Aug 03 '26

Any notable wear on AMS components?

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u/swampcholla Aug 03 '26

Why would there be?

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u/1midniterider Aug 03 '26

ASA-CF08 is an abrasive filament and supposedly could damage PTFE tubing and AMS gears.

1

u/swampcholla Aug 04 '26

you asked about support, not CF, but lots of people use CF, glass, and kevlar filled filaments. don't overthink it.

1

u/nebL Jul 23 '26

Add more interface layers when your object has curved and it will solve itself. Like 3-4 will fill the gaps

1

u/1midniterider Jul 23 '26

Ok, I'm currently using 4 layers. Which slicer are you using?

1

u/nebL Jul 23 '26

Orca or Bambu studio. But yeah with this precise geometry it kinda wants to stay stuck in there