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How to prevent nozzle from hitting the model?

Posted: Wed Feb 28, 2018 1:16 am
by aalfouzan
I'm trying to print the attached model photo which has a 300 mm height. The problem is that as the print keeps building up, the toolhead/nozzle starts hitting the walls during movement, like from right to left, until it breaks them.

I tried printing the model with my 3 extruder printer and one extruder printer but still have the same problem.

Is there anything I can do with S3D to prevent this from happening? Like to have an extra Z lift during movement between separate layers?

Re: How to prevent nozzle from hitting the model?

Posted: Wed Feb 28, 2018 3:49 am
by rrdavis
Yes, you can increase the retraction vertical lift value on the extruders tab.

You may also want to disable the "only retract when crossing open spaces" option on the Advanced tab so that it retracts and lifts before every single move (this will help avoid any collisions).

Re: How to prevent nozzle from hitting the model?

Posted: Wed Feb 28, 2018 4:24 am
by aalfouzan
Thank you very much. Truly appreciate your help.

Your settings look great on print preview, this is exactly what I was looking and hoping for :)

I have yet to try it in actual printing as the model requires 19 hours of printing.