PrusaSlicer 1.34.1.24

Slic3r Prusa Edition Slic3r 1.34.1.24 - Prusa Edition

Summary:

This is the Slic3r 1.34.1.24 - Prusa Edition release. This is a beta release fixing some issues and introducing optimizations of extruder ordering for multi material prints.

Following changes are significant to multi material printing:

• The G-code generator has been rewritten to minimize the number of tool changes.

1. Support is printed before or after an object to minimize tool changes.
2. All islands of multiple objects are printed with the first extruder before switching to the next extruder.

• The support interface pattern has been changed from zig-zag to concentric for soluble supports to improve surface quality of the supported overhangs.
• Soluble supports will have their layers synchronized with the object layers to minimize tool changes github.com/prusa3d/Slic3r/issues/197. ↗
• Non-soluble supports will be printed with a current extruder without triggering a tool change by assigning a special "0" extruder ID to support base and support interface.

This release contains the following new features and optimizations:

• Added a Notes Tab to Printer Settings github.com/prusa3d/Slic3r/issues/210. ↗
• Earlier Slic3r versions printed the support base and support interface extrusions separately. This Slic3r release interleaves the support base with the suport interface if possible (when extruded with the same extruder).

This release contains the following bug fixes:

• Fixed a bug in the layer height editor for high diameter nozzles github.com/prusa3d/Slic3r/issues/247. ↗
• Fixed a bug in the layer height editor when maxlayerheight is set to zero github.com/prusa3d/Slic3r/issues/267. ↗
• Fixed a support generator issue, where the XY gap has been ignored for the top contact layers, and a fixed 50% was used instead.
• Fixed loading of multi part ASCII STLs github.com/prusa3d/Slic3r/issues/255. ↗
• Fixed a "Synchronize with object layers" support feature for soluble support interfaces github.com/prusa3d/Slic3r/issues/197. ↗
• Fixed some missing first support layers with soluble supports github.com/prusa3d/Slic3r/issues/280. ↗

Following features were removed:

• Removed an Arc Fitting feature. This feature never worked and it is difficult to implement it correctly. Also apart from making the generated G-code somehow shorter, the arc fitting does not bring benefits to the print quality with existing printer firmware implementations.
• Removed the questionable Pressure Advance feature. It is better to use the firmware implementation of the same feature.

Internal changes:

• Ported the G-code generator from Perl to C++, improved the performance of the MotionPlanner.
• The GCodeReader and SpiralVase were ported from C++ to Perl, thanks to @alexrj.

Prusa3D specific:

• The OSX builds are signed.