Path: news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: "Jim Wilkins" <muratlanne@gmail.com>
Newsgroups: rec.crafts.metalworking
Subject: Re: Outdoor Welding
Date: Thu, 26 Jun 2025 08:41:55 -0400
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"Clare Snyder"  wrote in message 
news:6pgp5kdc7vpmqd19gtehhfsk77rrsh4obl@4ax.com...

>  Bolts?? I don't need no F'n bolts. Bolts are for guys who don't know
>what they are doing and will need to replace/repair parts!!!

------------------------------------

I didn't need bolts either once past the prototype stage, spotwelding may be 
faster and cheaper. On a new project I almost never knew what I was doing 
until I studied the problem and built enough to experiment. That's the 
nature of R&D. Design for manufacture follows after confirming that the 
prototype works well. Often design engineers "throw it over the wall" to 
production engineers instead of collaborating. That's why I learned 
machining processes and limitations.
https://www.businessballs.com/amusement-stress-relief/tree-swing-cartoon-pictures-early-versions/

Custom production test stations for automotive electronic modules were 
usually one-offs or small batches and had to keep up with evolving customer 
requirements as they found issues with their own prototypes, so I had to 
make the first and only attempt look professional, meaning neatly painted 
and labeled and easily rewired. All electronic and mechanical components had 
to be bolted or screwed into tapped holes in the painted frame, and 
sometimes moved for late changes. That was just before PLCs and DIN rail 
made the task easier.

In the mid 1970's there were no experienced automotive electronic engineers, 
they were all new hires learning practical matters they hadn't in school by 
trying to keep up with changing government safety, emissions and fuel 
economy regulations that sometimes conflicted. 5 MPH bumpers added weight, 
the best economy setting turned air into nitric acid pollutant. The intake 
air flow and exhaust oxygen sensors were from chemical instruments I was 
familiar with.

https://thedetroitbureau.com/2009/11/the-great-safety-belt-interlock-fiasco/
That's typical of when the government's failed trial lawyers meddle with 
science or engineering. Yet they scream of injustice when industry lobbyists 
fight back. Mitre and other quasi-private .orgs attempted to isolate us from 
their amateur technical bumbling while trying to solve public problems 
involving GPS and air traffic control etc.

A group of auto execs flew into Boston and drove over an hour to central NH 
with a warning buzzer blaring because they didn't know how to silence it. 
When they arrived we earned confidence (future orders) by unplugging the 
buzzer and disconnecting the load switches under the seats. They were 
contracting time-critical projects to a very small company in a state not 
widely known to be so high tech.