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Shirley Du

PROFILE

Shirley Du

Worked on the Ultimaker/Cura repository to enhance 3D printing workflows for Makerbot Writer Method printers by developing granular bead-mode motion control and high-speed print features. Integrated acceleration and jerk parameters into JSON-based configuration files, enabling both global and extruder-specific control that activates only when relevant values are set. Implemented conditional logic to enable advanced features like input shaping and corner rounding exclusively for high-speed print modes, improving print quality and workflow safety. Addressed a configuration bug by restricting unsupported acceleration and jerk settings, with a robust rollback to maintain stability. Demonstrated skills in Python, configuration management, and version control.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

5Total
Bugs
1
Commits
5
Features
2
Lines of code
198
Activity Months1

Work History

January 2025

5 Commits • 2 Features

Jan 1, 2025

January 2025 monthly summary for Ultimaker Cura focusing on Method printer motion control and high-speed print enhancements. Key features delivered include granular bead-mode motion control by integrating acceleration and jerk into meta.json with global and extruder-specific bead-mode values (applied only when non-zero). Implemented conditional enabling of advanced features (input shaping and corner rounding) for high-speed print modes. Major bug fixed: disallow per-mesh/per-extruder acceleration/jerk settings on Method printers, with a revert to undo a missing-file scenario to preserve stability. Impact: improved bead-mode precision and print quality on Makerbot Writer Method printers, safer high-speed printing workflows, and reduced configuration errors. Skills demonstrated include JSON-driven configuration changes, feature-flag style gating, version-control discipline, and robust rollback procedures.

Activity

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Quality Metrics

Correctness78.0%
Maintainability76.0%
Architecture76.0%
Performance72.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

Python

Technical Skills

3D Printing SoftwareBackend DevelopmentConfiguration ManagementEmbedded SystemsFirmware IntegrationPlugin DevelopmentVersion Control

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

Ultimaker/Cura

Jan 2025 Jan 2025
1 Month active

Languages Used

Python

Technical Skills

3D Printing SoftwareBackend DevelopmentConfiguration ManagementEmbedded SystemsFirmware IntegrationPlugin Development