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Ultimaker / Cura

3D printer / slicing GUI built on top of the Uranium framework
GNU Lesser General Public License v3.0
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Add preference option to try more granular rotations when arranging #8898

Open KenLucke opened 3 years ago

KenLucke commented 3 years ago

Application version 4.8 (and before)

Platform Mac OSX 10.15.7

Printer N/A

Reproduction steps

  1. Load a model that does not fit into build space in one orientation, but does in another.
  2. Use Arrange Models to try to automatically rotate to fit

Screenshot(s) Notice the initial position is non-tenable (although I could change some build plate parameters to compensate). Manual rotation of 22° makes it allowable.

Meteor Light Holder - Ultimaker Cura 2020-12-07 10-34-51

Actual results Nothing - no change

Expected results Arrange Models should figure out a way to fit the model if at all possible.

Project file https://www.dropbox.com/s/xfwdysorkk6inrr/Meteor%20Light%20Holder.3mf

Log file

Additional information

rburema commented 3 years ago

'Arrange' doesn't perform rotation (EDIT: now, except in 90 degrees), and is mostly intended to be used if there are multiple objects on the build-plate. (The 'bin-packing' problem is already NP-complete even without rotation).

I consider this a feature request then: Make the arrange algorithm be able to rotate models. This will be very hard in the general case (with more than one object), so I'll just discuss a 'fit single object to build-plate' that takes rotation into account with my colleagues.

KenLucke commented 3 years ago

'Arrange' doesn't perform rotation (EDIT: now, except in 90 degrees), and is mostly intended to be used if there are multiple objects on the build-plate. (The 'bin-packing' problem is already NP-complete even without rotation).

I consider this a feature request then: Make the arrange algorithm be able to rotate models. This will be very hard in the general case (with more than one object), so I'll just discuss a 'fit single object to build-plate' that takes rotation into account with my colleagues.

OK, works for me :) .

KenLucke commented 3 years ago

Also, related, see #8899

JRitmeester commented 2 years ago

I just came across this, as I have models that only fit at an odd angle between 45 and 90 degrees on my build plate. Whatever came out of this discussion?

rburema commented 2 years ago

From memory, as I can't find the related ticket: It was discussed, but deferred. as adding rotation in anything other than 90 degree increments would get prohibitively expensive (read: will take a long time to run) for the situations where it's needed (many small models on a large buildplate).

However. there is a ticket on the internal backlog (devs: CURA-7951) to 'lock' the orientation of the models when arranging.