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Mechanical Engineer · July–December 2025

Quadratic3D

At a fast-moving volumetric 3D printing startup focused on high-speed, no-support fabrication and mass customization, I worked in an environment shaped by rapid iteration, direct feedback, and fast decision-making. My work combined precision mechanism design, thermal and structural analysis, CNC manufacturing, and experimental validation, including a thermally optimized enclosure design that achieved a 60% reduction in heat loss.

ActuatorsThermal ModelingSolidWorks FEAFusion 360 CAMCNC MachiningValidation
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What this project involved

Designed a three-stage belt-driven linear actuator with kinematic mounting, limit-switch homing, and a passive electromagnetic lock for repeatable positioning and reduced motor overheating during holding.
Developed and manufactured a belt-driven linkage system using a Python kinematic model to size the actuator while accounting for sealing, belt tensioning, and quick-disconnect electrical interfaces.
Derived pressure distributions from rotational dynamics and used SolidWorks assembly FEA to evaluate glass structural limits under centrifugal loading, then validated the design through staged centrifuge testing up to 60 g.
Modeled heat transfer in a space-constrained transparent multi-pane insulated enclosure and experimentally validated a design that reduced heat loss by 60%.
Generated Fusion 360 CAM toolpaths, machined precision components on a Datron 3-axis CNC mill, and verified fits with GD&T inspection on a Datron CMM.

Key takeaways

Precision mechanism design Combined kinematic mounting, sensing, and holding strategy into a repeatable actuator architecture.
Thermal + structural breadthShowed the ability to move between heat transfer, structural loading, manufacturing, and validation.
Hands-on executionIncluded CAM generation, CNC machining, tolerance verification, and staged hardware testing.
Optomechanical DesignCombined optical and mechanical systems to achieve precise metrics such as laser stability.