I think this feature is a must when x1c and p1p are running so fast.
I’m manufacturing a lot of smal parts using ASA, that are printed close together to be able to fit them as many as possible on the build plate.
The existing feature "avoid crossing walls’ doesn’t work in this case, It is being ignored and the nozzle is storming across the parts hitting them. Using the Z hop makes the parts ugly.
Cura has this feature and I love it.
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I have a similar problem. There are times when the printer leaves a little bump of filament, especially when it is adding a very short inner perimeter in a corner. When I only have a few parts there is less chance of hitting a bump, and possibly more important the bumps are still soft. As I add more parts I eventually get to a point where the nozzle hits a bump that is very solid and knocks the part loose.
There are many posts about hearing a sound like the nozzle is hitting something. In those cases the part is large enough that hitting a semi-solid bump makes noise without knocking it loose.
there are other posts about printing tall parts and they constantly get knocked loose when almost complete. It is another case of the nozzle hitting bumps raised about the current layer surface.
It would be great if someone could provide a good solution to this that works in all cases.
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I think the paramater “Avoid crossing wall” is what you looking for.
It is located at Quality → Advanced → Avoid crossing wall
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which version of Bambu Studio have you found this parameter?
Could not find it in v1.9.5.51
If you want help, I suggest you upload your .3mf project file and then we can examine your print settings. Maybe someone here can then point out a solution without doing the usual, much less productive 20 questions.
Avoid crossing walls is what you want, from the latest version, it’s there.
“avoid crossing walls” unfortunalty does not work for supports. There should be an option “avoid crossing support”. I have a model in which the printer nozzle hits every single support wall at max speed during travel.
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It’s a must! Agreed 100%.
for now, im guessing Z-hop off and maybe a bed tramming? and perhaps "Precise Z height - on "
I’ve just run into this, ironically, while printing some calibration pieces. The pieces are only a few mm in height so the toolhead just passed over them after printing (print by object). But in doing so a tiny string of filament continually, after multiple attempts, kept ending up on one or more completed objects and/or leaving a line in the center that was the same color as the object, which I assume was due to the proximity of the nozzle to the object causing some very minor melting on its pass.
This issue only seems to be prevalent in a serious way when objects are centered along X axis on the Y axis at 128 mm. If you’ve lined up multiple objects along Y 128, the print head will travel across the X axis in a perfectly straight line, rather than moving up or down the Y axis so they print head is outside the bounds of finished parts.
However, notice the parts at Y 174 (the top row). If you view the travel in the Preview tab, you will see that the print head moves at a more diagonal travel throughout the print. It would seem the default behavior is that if the bed is in the home position on the Y axis, it does not move to avoid the print head from passing over objects.
While the Z hop may avoid this, indirectly, it doesn’t actually completely solve the issue. We really need to be able to set at least a Y and Z offset during travel or simply be able to tell the slicer to avoid completed objects, which would require a Y offset as well.
Now the real solution would probably be to optimize filament settings for retraction length so that you could avoid a dangling piece of filament and also use Z hop to raise the print head to avoid passing heat to a finished object, but having this pre-configured would be a huge help.
For what it’s worth, enabling Z hop still does not seem to avoid the travel following exactly on Y 128 across the X axis. I’ve tried various combinations of the suggested fixes but no matter what I have a line that travels the minimum distance on the Z axis across the parts (so very, very close to their surface); the only solution I’ve found is to rearrange their print order. It’s a simple fix, but it probably shouldn’t be necessary.