Cordless Drill/Driver - Full Product Assembly with 3-Stage Planetary Gearbox 3D Model (Concept)

Concept 3D model of a cordless drill/driver, modelled as a full product assembly of about 55 parts in FreeCAD, including a working-layout 3-stage planetary gearbox. This is a self-initiated portfolio piece, not a manufactured product. What is modelled: - Two-shell clamshell housing split on the centreline, with wall thickness, screw bosses and a trigger slot, as it would be split for injection moulding - Overmoulded rubber grip on the handle - Trigger, motor and six assembly screws - 3-stage planetary gearbox: sun gear, three planet gears, pins and carrier per stage, inside one internal ring gear (4:1 per stage, gear teeth simplified, not involute) - Output spindle and 3-jaw chuck with jaws - Slide-in battery pack with 4 cells and latch tab Views included: assembled render, front view, cutaway (one housing half and the grip hidden to show the gearbox and motor) and exploded view showing how the assembly stacks together. Files: STEP (opens in SolidWorks, Fusion 360, Inventor, Onshape and most CAD tools), editable FreeCAD file, STL and PNG renders. I do 3D mechanical and product design, DFM-minded part modelling, multi-part assemblies and exploded views, gear and mechanism layouts, and process-equipment models (pumps, heat exchangers, vessels, skids). Message me with your sketches or specs and I can model your product and deliver STEP files and PDF drawings.