
Over ten months, Kevin Gulling developed and refined turbopump CAD assemblies for the PURPL-Purdue/Turbopump repository, focusing on mechanical design, 3D modeling, and configuration management. He delivered detailed CAD models and geometric data for LOX and RP-1 casings, impellers, and subassemblies, iteratively improving manufacturability, fit, and integration readiness. Using CAD, STEP, and NX, Kevin established robust version control and traceable commit histories, enabling rapid design iteration and reliable handoff to manufacturing. His work emphasized data integrity, assembly accuracy, and workflow efficiency, addressing complex geometric and mechanical requirements while supporting downstream simulation, validation, and production with high-fidelity engineering assets.

October 2025 performance summary for PURPL-Purdue/Turbopump: Delivered a detailed 3D Cartesian geometry representation for lox_impeller_forPBF.stp to enable high-fidelity manufacturing and simulation. Reorganized CAD data to streamline downstream workflows and improve data management. No critical bugs reported; groundwork laid for QA, validation, and production ramp.
October 2025 performance summary for PURPL-Purdue/Turbopump: Delivered a detailed 3D Cartesian geometry representation for lox_impeller_forPBF.stp to enable high-fidelity manufacturing and simulation. Reorganized CAD data to streamline downstream workflows and improve data management. No critical bugs reported; groundwork laid for QA, validation, and production ramp.
July 2025 monthly performance summary for PURPL-Purdue/Turbopump focusing on design refinement and readiness for manufacturing. Delivered targeted refinements to the RP1 Casing CAD model to improve manufacturability and fit, with adjustments to fillets and inlet parameters, and updated associated binaries to reflect the latest design. No major bugs fixed this month; effort centered on design quality, integration readiness, and process efficiency.
July 2025 monthly performance summary for PURPL-Purdue/Turbopump focusing on design refinement and readiness for manufacturing. Delivered targeted refinements to the RP1 Casing CAD model to improve manufacturability and fit, with adjustments to fillets and inlet parameters, and updated associated binaries to reflect the latest design. No major bugs fixed this month; effort centered on design quality, integration readiness, and process efficiency.
June 2025 Monthly Summary for PURPL-Purdue/Turbopump: Key features delivered, reliability improvements, and data integrity enhancements with a clear traceable change history. No explicit bug fixes were documented this month; design revisions focused on manufacturability, assembly reliability, and CAD data readiness.
June 2025 Monthly Summary for PURPL-Purdue/Turbopump: Key features delivered, reliability improvements, and data integrity enhancements with a clear traceable change history. No explicit bug fixes were documented this month; design revisions focused on manufacturability, assembly reliability, and CAD data readiness.
For May 2025, delivered CAD-driven turbopump casing updates for the PURPL-Purdue Turbopump, aligning RP1 and LOX interfaces with updated subassemblies and reference models. Implemented new RP1_Casing_5_25_25.prt and associated adjustments to improve volute intersection sizing, fitment, and manufacturability. This work enhances system integration reliability and reduces risk in subsequent integration cycles.
For May 2025, delivered CAD-driven turbopump casing updates for the PURPL-Purdue Turbopump, aligning RP1 and LOX interfaces with updated subassemblies and reference models. Implemented new RP1_Casing_5_25_25.prt and associated adjustments to improve volute intersection sizing, fitment, and manufacturability. This work enhances system integration reliability and reduces risk in subsequent integration cycles.
April 2025: Delivered a consolidated RP1 casing set spanning 3.30_25 and 4.x releases, including creation of 4.1–4.7 casings and related print readiness updates. Updated LOX pumps casing and established a new FullAssembly RevF with associated casing edits, while standardizing casings and assembly revisions across LOX models. Minor routine changes completed to maintain consistency and facilitate faster production handoff. Overall, these efforts improve design standardization, traceability, and readiness for manufacturing.
April 2025: Delivered a consolidated RP1 casing set spanning 3.30_25 and 4.x releases, including creation of 4.1–4.7 casings and related print readiness updates. Updated LOX pumps casing and established a new FullAssembly RevF with associated casing edits, while standardizing casings and assembly revisions across LOX models. Minor routine changes completed to maintain consistency and facilitate faster production handoff. Overall, these efforts improve design standardization, traceability, and readiness for manufacturing.
March 2025 Turbopump work delivered key LOX and RP-1 casing enhancements for PURPL-Purdue/Turbopump, expanding design variants and asset readiness. LOX Casing Subassembly introduced new casing and turbine stator components, with a sequence of PR updates and multiple pump variants (3-4-2025, 3-6-2025, 3-8-2025) to broaden performance envelopes. RP-1 Casing Subassembly added kerosene casing components and new casing assets, including several .prt files (3-9-2025, 3-30-2025, 3-31-2025) and a reconciliation step reverting to a previous RP-1 model. All work maintained clear traceability via commit history. Together these changes enable faster design iteration, improved subsystem reliability, and more flexible propulsion configurations for LOX/RP-1 subsystems.
March 2025 Turbopump work delivered key LOX and RP-1 casing enhancements for PURPL-Purdue/Turbopump, expanding design variants and asset readiness. LOX Casing Subassembly introduced new casing and turbine stator components, with a sequence of PR updates and multiple pump variants (3-4-2025, 3-6-2025, 3-8-2025) to broaden performance envelopes. RP-1 Casing Subassembly added kerosene casing components and new casing assets, including several .prt files (3-9-2025, 3-30-2025, 3-31-2025) and a reconciliation step reverting to a previous RP-1 model. All work maintained clear traceability via commit history. Together these changes enable faster design iteration, improved subsystem reliability, and more flexible propulsion configurations for LOX/RP-1 subsystems.
February 2025 monthly summary for PURPL-Purdue/Turbopump: Delivered consolidated Turbopump CAD asset updates with LOX casing integration and turbine components to improve model accuracy for manufacturing and assembly. Updated stator geometry, shroud design, and blade geometry, including flange integration for LOX casing. All work tracked through a sequence of commits enabling traceability and reuse in downstream fabrication and testing.
February 2025 monthly summary for PURPL-Purdue/Turbopump: Delivered consolidated Turbopump CAD asset updates with LOX casing integration and turbine components to improve model accuracy for manufacturing and assembly. Updated stator geometry, shroud design, and blade geometry, including flange integration for LOX casing. All work tracked through a sequence of commits enabling traceability and reuse in downstream fabrication and testing.
2025-01 Monthly Summary: Focused on expanding NX-ready CAD data for turbine components, integrating gas generator chamber configuration, and establishing a robust testing framework to accelerate validation and reduce integration risk. No critical defects reported this period; primary effort centered on data alignment, assembly accuracy, and test scaffolding to support manufacturing readiness.
2025-01 Monthly Summary: Focused on expanding NX-ready CAD data for turbine components, integrating gas generator chamber configuration, and establishing a robust testing framework to accelerate validation and reduce integration risk. No critical defects reported this period; primary effort centered on data alignment, assembly accuracy, and test scaffolding to support manufacturing readiness.
December 2024 summary for PURPL-Purdue/Turbopump: Delivering turbine assembly CAD model updates (new stator and turbine shroud models) and stator refinements to enable rapid design iterations and manufacturing readiness. No major bugs fixed this month; focus was on feature delivery and CAD fidelity. Impact: accelerated design cycles, improved manufacturability, and better traceability through commit history. Technologies demonstrated: CAD modeling, Git/version control, and cross-functional collaboration.
December 2024 summary for PURPL-Purdue/Turbopump: Delivering turbine assembly CAD model updates (new stator and turbine shroud models) and stator refinements to enable rapid design iterations and manufacturing readiness. No major bugs fixed this month; focus was on feature delivery and CAD fidelity. Impact: accelerated design cycles, improved manufacturability, and better traceability through commit history. Technologies demonstrated: CAD modeling, Git/version control, and cross-functional collaboration.
November 2024: Focused on safety-enhancing CAD deliveries for test stands and iterative design improvements to turbopump test environment. Completed two major feature upgrades with CAD assets, improving test readiness and safety. No code changes required, but CAD design work lays groundwork for upcoming hardware builds.
November 2024: Focused on safety-enhancing CAD deliveries for test stands and iterative design improvements to turbopump test environment. Completed two major feature upgrades with CAD assets, improving test readiness and safety. No code changes required, but CAD design work lays groundwork for upcoming hardware builds.
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