CAD Projects
Wind-Up Car
I designed a wind-up car powered by a constant-force spring motor and equipped with an Ackermann steering system. Dowel pins, bearings, and various 3D printed components with press-fit tolerances create a simple drivetrain. A servo motor paired with an RC controller system drive the Ackermann steering system. The wheels are comprised of off-the-shelf tires which fit onto custom 3D printed rims.
The CAD of the car is entirely parametric and was modeled using 3 skeleton part files.
CAD Software: Autodesk Inventor
The CAD of the car is entirely parametric and was modeled using 3 skeleton part files.
CAD Software: Autodesk Inventor
Cat Linkage Machine
I designed and prototyped a single-drive linkage machine modeled after a running cat. A series of gears on the backside of the machine allows it to be hand-driven by one input gear. The front and back legs were each modeled parametrically using skeleton part files. Parametric modelling was extremely important in the development of the design because the motion of the linkage machine was dependent on a large number of parameters.
A prototype of the front leg was 3D printed to test and validate the design. The 2 rotating drive circles in this prototype were connected with a belt and pulley, which caused offsets in phase between the rotating circles because of slippage. This issue was resolved in the final design by using gears instead.
CAD Software: Autodesk Inventor
A prototype of the front leg was 3D printed to test and validate the design. The 2 rotating drive circles in this prototype were connected with a belt and pulley, which caused offsets in phase between the rotating circles because of slippage. This issue was resolved in the final design by using gears instead.
CAD Software: Autodesk Inventor
Parametric Spur Gear Differential
I modeled a fully parametric spur gear differential and conducted a motion study for validation. First, I created my own generic, parametric gear template. After creating a master skeleton part file, I copied this template for each gear in the differential and modified it by linking the parts to the skeleton file. This allowed for a relatively simple master file to fully control the parameters for the differential.
CAD Software: Autodesk Inventor
CAD Software: Autodesk Inventor
4-Chamber Piston Pump
I designed and modeled a 4-chamber piston pump to to pump as much water as possible in 1 minute. The pump utilizes a crankshaft to robustly convert rotational motion into translational motion for the pistons. Each piston was designed to be double acting, with each side having its own input and output valve, to increase the flow rate of water as much as possible.
All components have been optimized for ease of manufacturing and can be made with just a manual mill and lathe.
CAD Software: Fusion 360
All components have been optimized for ease of manufacturing and can be made with just a manual mill and lathe.
CAD Software: Fusion 360