Hi
I have tested PLA support and so far, the results were quite good with standard settings in bambulab studio. Now I tried to print a part which would need a lot of briding without the support. It did not work well because it seems that the PLA sticks too well to the support material. I assume its because of the bridging. Normally the support material can be removed easily.
Here is how it looks like:
Because there is a hole in the middle, briding is difficult. The slicer does it wrong in bambulab, so that is why i chose to use PLA support material. Here is how it would print without support:
I have two questions:
- What do I need to change in order that bambulab does a proper briding without using support?
- What do I need to change in order that the support material can be removed easily?
Thanks for your help.
I would use petg or pva for interface layers this is the best way to have it smooth on the bottom and with the part having a hole in the middle.
I would also use variable height for the overhangs.
What build plate do you use when mixing PLA and PETG? Or do you only use it for interface layers?
I only use the petg for interface layers this way you have very few filament changes needed.
I use the WhamBam and the Texture built plates for most stuff with nano polymer adhesive
Do you set all z-distances to 0? How can you avoid bridging which is not needed if support is added?
Yes I set the z distance to zero it has worked for me with my petg filaments if you want to add some top Z distance to help the release put it @ 0.015
Sample support set up with your part design
You want to set your petg interface filament settings up like this for the AMS filament changes you need to keep the petg nozzle temps down low and set your support interface speed to 40 mm/s
Make a small test part and test it out
I have the Orca slicer 1.6.3 beta so it has many more setting you can even add interface fan speed % this will also help with regular supports bonding to much 
Have a good one 
