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How to use cura3.1 print cage model successfully?

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Posted · How to use cura3.1 print cage model successfully?

Recently I bought a new printer, using the cage model test find that with the same parameter settings, cura3.1’s printing will always knock down one of the pillars, and with cura15.04 you can print successfully.

After comparing the gcode files they generated, I found that the problem was that cura3.1 moved to the start of the next layer when the layer was converted, and then rising one level, causing the nozzle to knock down the pillar at the starting point; and cura15.04 moves up to the next level of the starting point while rising one level. Here is the picture of codes in two versions(left is 15.04 and right is 3.1) :

1.thumb.png.bdceb88318bb32a54904f2143d59bfdf.png

I tried to modify the various parameters of 3.1, but still can’t achieve the same moving as 15.04. Is there anyone telling me why developers let “moving to the starting point while rising layer” into two steps? What are the advantages? Now I can only found the downside: the nozzle scratches the support and knocks down the model.

Of course, the most important thing is: Can you guys use cura3.1 print a cage model successfully? Who can tell me how to set the parameters so that the nozzle doesn’t knock down the model?( Of course not z hop when retracted, a waste of time.)

Thanks for help.

2.png

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