July 15, 2021

MEP EP#285: Let The Robots Do It

59 minutes

MEP EP#285: Let The Robots Do It

Finally real engineering… follow up

What is the most computational intensive work you have had to do on the job?

Mixed Integer Non Linear Optimization problem

Apopt solver

Pyomo

SK -2d polynomial matrix...thing

Email from a listener!

Our “assessment that it is uncommon for engineers to need this is quite biased since both of you work in manufacturing”

Clarification of point

Most of Stephen's time has been split manufacturing and design

Theory classes do reinforce your “gut check” and “rules of thumbs”

Python SCPI Test Development

Recap of Saturday

Stephen’s Bias Test Board

Issue with devices resetting/losing communication

Bias test board

Finding the right A/D kind of sucks

It is never just resolution

Lots of variables to juggle

Resolution

Speed

Cost

Accuracy

Package

Features

Not so features

PGA

Digital filtering

Caddock 1776-C681 resistive divider

0.05% tolerance

Convenient 1/n division

0 to 1000V down to 0 to 1V

Settled on ADS1256IDBTG4

All the bells and whistles

Opamp constant current driver to push 1mA

Resistance range = 100R to 2.2k so 100mV to 2.2V

Joe biden and right to repair

July 9 executive order includes wording for right to repair

To address persistent and recurrent practices that inhibit competition, the Chair of the FTC, in the Chair’s discretion, is also encouraged to consider working with the rest of the Commission to exercise the FTC’s statutory rulemaking authority, as appropriate and consistent with applicable law, in areas such as

Unfair anticompetitive restrictions on third-party repair or self-repair of items, such as the restrictions imposed by powerful manufacturers that prevent farmers from repairing their own equipment

Federal trade commission released “Nixing the Fix” May 2021

...more

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By MacroFab, Inc.

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