Feature request under "z seam": limited random start location

[sricha 1]

Hello.  First, thanks to all of you for all your hard work!

 

I have a feature request to add an additional selection in the "z seam" section that is identical to "random", except it limits the travel from the end of the last perimeter to the start of the next perimeter.  Presently, with "random", the start start of the next perimeter is chosen to be a random location along that perimeter. 

 

With "limited random", the start of the next perimeter would be chosen to be a random location within a "d_mm" radius of the nearest location of the next perimeter to the end of the last perimeter.  Of course, "d_mm" would be a user defined parameter which would probably be in the range of 10-25mm.

 

So that way, the travel move to the start of the next perimeter would either be no more than 10-25mm from the end of the last perimeter, or at most, no more than 10-25mm from the shortest possible travel to the next perimeter.   This should save time (compared to random) and result in slightly less oozing and blobs.

 

I hope that made sense.  If there's a combination of settings that already accomplishes that goal, then that would be even better!

 

Thanks,

 

Scott

[Dustin 130]

Im not sure I follow the reason for needing that?

It sounds like "Shortest" "Sharpest Corner" or even "User Specified" would result in mostly the same results.

[cdjackson 2]

 

On 3/21/2023 at 4:29 AM, Dustin said:

It sounds like "Shortest" "Sharpest Corner" or even "User Specified" would result in mostly the same results.

 

Don't these then have a fixed z location?

 

I guess the idea is still to have a "random" location for the z seam, but just to limit the delta at each layer to reduce time (and oozing).

 

As an example, I print a number of large, round, objects. This requires a random z seam - otherwise we end up with a  vertical "stitching" line that is clearly obvious in the final print. However as the object is quite large, the movement to the new random location takes a significant time. I think the idea of the OP was to reduce this travel while still maintaining the advantage of the random z location.

 

I would also add to this that from my observations, the random z seam is randomised on every wall line. It would be nice to have an option that all walls on a layer can have the same z location and it's only randomised for each new layer. This would again limit the required travel and would make quite a significant improvement in time for large objects.