Challenge A 3D CAD modeling project. The project resurfaced the robot around existing components. With the use of CAD software (SolidWorks) and rapid prototyping methods (3D printing), we get to build, modify and optimize our design from computer to reality.
Modeling Mip Robot Take apart the Mip Robot and model each parts in SolidWorks.
This stage helps me to understand how a 3D form could be approached. In order to build the model cleaner and more efficient, sometimes it’ll help to think through how a form could be manufacture in real world.
Rocky Reborn
To live forever, Rocky has turned into Rocyborg.
Design Development
The form at early stage is geometric with attentive edge. But while building the model in SolidWorks, I soon realize this form limits the space and make each part harder to fit. This lead to the refine design with organic shape.
Final Design
Modeling in SolidWorks
What I’ve Learned.
Place the sketches to keep the characteristic of the design.
The two-faced design benefits from the use of surface tool. I often need to refer back to the original form to thicken, trim, or knit the surface.
To keep the form in one piece, I remove the battery box on the back and replace with a plate which snap on the internal case. This reduces space and allow more flexibility for the placement.
Test Print (Pill Box)
tol: .005” Too tight Tolerance increases .002”
tol: .003”
Test out the tolerance for printing in FDM. I print out a small pill box with the same tolerance to make sure the lip and groove and screw hole fit well.
SECTION
A
A-A
A
Test Print (Kludge)
Ribs of top pcb bosses slightly intersect
Print out kludge to evaluate the model then go back to fix the parts.
Circuit board top screw hole off 0.03�.
Wheel hole 0.05� higher.
Thickness between battery box and metal pin need to 0.05 thinner.
Make lip and groove 0.02 smaller
3D Print Parts were printed using FDM