Feature issue 15583 spiral z hop

[NadineMik]

Description

This pull requests adds a tangential spiral z-hop and thus fixes this issue.
It provides a smooth spiral z-hop after a retraction, where the beginning and the end of the spiral (or arc) is tangential to the previous and following movement. Additionally, a retraction can be performed throughout the spiral. The z-height increases linearly throughout the spiral and the speed in xy-direction is kept constant relative to the previous movement. After the following travel a normal unretract and vertical un-z-hop is performed.
The full documentation on this feature can be found over here.
This pull request is paired with a pull request in cura engine over here.

Type of change

Only settings have been added inside cura. The remaining changes (logic) have been done in the cura engine.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Printer definition file(s)
• Translations

How Has This Been Tested?

• Checked that the new settings are visible in the UI and can be called from the engine.

Test Configuration:

• Operating System:
• Windows 10

Checklist:

• My code follows the style guidelines of this project as described in UltiMaker Meta and Cura QML best practices
• I have read the Contribution guide
• I have commented my code, particularly in hard-to-understand areas
• I have uploaded any files required to test this change

[MariMakes]

Hey!

Welcome to the UltiMaker Cura Github 🚀
Sorry, it took us a while to get back to you 😞

We've added a ticket to the backlog so the team can test this functionality.
They are really excited to try it out, it looks very promising 😇
For internal reference CURA-11696

Thanks for your report.
Together we can make Cura better 😊

[NadineMik]

Many thanks for the update! I am looking forward to your feedback!

[saumyaj3]

Hi @NadineMik! First of all, I would like to thank you for taking out some time to implement this feature for Cura. However, We had some testing done on the feature you implemented for spiral z-hop. the results were not satisfying, so we are parking this PR for a while. One of the test prints for the spiral z-hop is mentioned below.

Our testing team had some improvement points for the feature, I suppose you can work on these points once you get time?

• Z hop type setting is not visible in experimental. It is also not visible when dual extrusion is on. Make sure this setting is available in experimental section and is also available in case of dual extrusion

• "Z hop when retracted" is on by default. This should not be the case.

• Spiral z hops makes the travel line (partly) dark blue (unretracted) also light blue (retracted). this shouldn't happen.

• Default setting spiral radius is much too large: 10mm set to 1mm

• No z movement is visible in the slice preview, both for vertical and spiral z hop at the moment. This code is to be looked into shaders.

• There seems to be a bug in the time estimate. A PLA/PVA print of the autodesk model take 7h55min with a vertical hop and 7h24min with a spiral hop. Can not be true.

• Also it looks like the spiral hop happens at one height while it should go up while doing the spiralling for blobs not to form.

Your help is much appreciated.

Thanks a ton.