DRAWING SAMPLES - MECHANICAL CAD DESIGN
Disclaimer: These drawings are either old technology, outdated, or recreations of original designs. Proprietary information has not been compromised.
CONCEPTUAL LAYOUTS

The drawing samples in this section are R&D layouts from projects at the conception stage. As a designer it was my responsibility to create designs that correspond to fit, form, and function of the desired engineering requirements.

Normal design operating procedures consisted of material research, FEA (Finite Element Analysis), selection of "off the shelf" vendor parts, frequent interface with fabrication vendors, design reviews, and drawing management planning.

The drawing layouts here are from new product developments and new integrated designs to retrofit within an existing system to replace an older design revision created from scratch.

 
FABRICATION DRAWINGS

After finalizing the conceptual design layout I start extracting individual piece parts to create fabrication drawings to send out to vendors for fabrication.

The Fabrication drawings I've created in the past varied from heavily detailed piece parts with GD&T, Geometric Dimensioning & Tolerancing, to simple parts with minimal dimensions on the drawings.

I create these type of drawings as if I'm the machinist fabricating the part. I add notes and dimensions as if I'm going through the fabrication stages myself.

 

 
ASSEMBLY DRAWINGS

Instead of showing some of the more elaborate assembly drawings I've created I opted to show a select few to describe the different functions I have used assembly drawings for. The laptop drawing to the right is pretty much a typical assembly drawing with the basic exploded isometric view with item bubble callouts and a Bill of Materials below. I also put an orthographic front, top, and side view to display dimensions and any notes that may be needed.

The three drawings below are functional assembly drawings; a Pneumatics panel assembly with an air flow chart, an exploded assembly to show how items are assembled together, and an assembly of a calibration tool that shows how to connect interlinked pieces with section views to display critical assembly dimensions.

The point here is to display and explain how the assembly drawing can be used to effectively communicate different assembly functions to the end viewer.

Assembly drawings can be used to direct manufacturing intent.

 
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