Bristels
Here are the bristels of the CNC dust shoe I remixed.
There are also a curved version and th fusion files but somehow Thingiverse will not let me upload them, so here they are including the Fusio files
https://www.dropbox.com/s/guwiogve76xt297/curved.stl
https://www.dropbox.com/s/jrfbrktx72icesr/curved.f3d
You will need two curved and two straight ones.
Make a few test pieces to calibrate your brigding setting first. My sweet spot with this softer PLA was 75% flow 40mm/s speed at full cooling
After the print simply cut of one side to free the bristels.