Update after a nap

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Scotty
Posts: 752
Joined: Sat Apr 28, 2018 6:06 pm

Update after a nap

Post by Scotty » Sat Jan 12, 2008 8:35 pm

Hi All,

I may have made a small goof in my previous post. Express says they

will ship in 1 day, not 10. In my previous order from Express, they

did, indeed, ship after 1 business day. However, UPS took 8 more days

to get it to me with their "famous" 2 day overnight. It got all the

way to my street in Garland Texas, when the UPS delivery guy noticed

the package had a small tear in the corner. Instead of getting out of

his truck and walking to my door to let me inspect it, they sent it

back to ExpressPCB for repackaging and reshipment. Dumb, dumb, dumb.

A screen print of the Verification Panel is now posted in the Photos

Section. Minimum spacing between pwb's are 0.1 inch. Should be

plenty of room for slicing.

For the question of "how much testing will Cash's panels require?"

For those of you who are not familiar with a manufacturing process,

let me give you the steps, necessary to get a product to market.

Concept, electrical design, breadboard, mechanical design, engineering

model, prototype, and production.

From my "working" experience, concept is derived by low I.Q. idiots

(customer and manufacturer's representative in a bar) who have no

conception of the real engineering world. It is the job of the design

engineer to get enough information from the representative (hopefully

sober, now) to make a qualified electrical design.

He will then order parts and build it with breadboard techniques to

prove that it works (proof of concept). He will then sit with his

favorite Mechanical Engineer while the ME designs the hardware to

create the engineering model. The engineering model is where the

"oops, that ain't gonna work" items crop up. These items are fixed

and the prototype is built to prove that all "bugs" are eliminated.

Then, production begins, using subcontractors and vendors, etc. If

the prototype was sucessful, it could really be called the serial

number one of the production run.

My conception started a few years ago when I was trying to fine tune

a Ham's 440 MHz cavity diplexer without a spectrum analyzer (visualize

much hair pulling). I made an electrical design and built the SSAP

(Scotty's Spectrum Analyzer Prototype). It really was not a true

prototype, it was a breadboard. I called it a Proto because, at the

time, I thought that it would be the only SA I would build (ha, ha).

The transformation of the SSAP into the MSA was the engineering model

phase. The addition of the Tracking Generator and VNA were just

"enhancements" to the basic spectrum analyzer.

We are now at the prototype stage. We could call the Verification

Panel, the Prototype Panel. The Verification system can be called the

Prototype System. Cash's panels can be called Production Panels. I

don't think they are going to need any electrical "proof" testing.

They just need to be scrutinized for physical accuracy before release.

True Production Systems will be built by individual builders and

they can choose their own vendors for materials. Cash Olsen would

like to be considered as a prime vendor for future production units.

I don't see him making a considerable amount of money on each kit,

but, by golly, these can add up as more potential builders see results

of the first production units.

Scotty

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