Retraction for E3D Volcano and Direct Bondtech BMG



  • I ran something like 0.8mm retraction on a standard E3D, but now I'm using a Volcano with a 0.6mm nozzle and have no idea where to start testing retraction settings. I've read 4mm to 7mm, but that seems quite high.

    Does anyone have a similar setup and want to share retraction details?



  • I have exactly the same setup on volcano with 0.6mm nozzle - yet using a titan aero.

    I almost settled on something, but I definitely have to take another look at it.

    There are two methods I usually go to:

    the four cubes https://www.thingiverse.com/thing:1159886
    
    the pointy things https://www.thingiverse.com/thing:909901
    

    But I haven't heard of this 4 to 7mm thing.



  • I have a P3Steel with Bondtech BMG and standard E3Dv6 (0.4 mm) and a Hypercube Evo with Zesty Nimble and switching between standard E3Dv6 (0.25 mm) and Volcano with 0.6 mm nozzle. I run 0.8 mm retraction at 40 mm/s on all three and it seems to work fine.

    I would guess the BMG and Nimble are quite similar since they are both geared direct extruders. But the Nimble is set up with much lower jerk and acceleration.


  • administrators

    @saffi said in Retraction for E3D Volcano and Direct Bondtech BMG:

    I ran something like 0.8mm retraction on a standard E3D, but now I'm using a Volcano with a 0.6mm nozzle and have no idea where to start testing retraction settings. I've read 4mm to 7mm, but that seems quite high.

    That sounds like the retraction you would need for a Bowden extruder, not direct drive.



  • @dc42 Thanks, I'll bump it back down to my standard 0.8mm settings and try again. Maybe I need a bit of coasting or negative restart distance to get rid of the small defects near retraction points.



  • From what I've been able to gather 2mm seems to be a good starting point for a direct drive volcano.


 

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