jsheradin

He broke records for youngest WDC, pole sitter, podium, race winner, etc. I fully expect he’s going to set records for oldest.

It’s pretty common for a CMM to be in its own climate controlled room. Parts will be placed in the room and allowed to reach reference temperature for a several hours prior to measurement.

On production lines you usually skip the absolute measurement of a CMM and use go/no-go gauges. One should fit, one should not. They’ll be made of a material with similar thermal expansion coefficients as your parts. As long as they’ve both been sitting around for a while they’ll be at the same temp. They’ll have expanded or contracted the same amount from reference so their relationship of go/no-go will still hold true.

The whole field of metrology is a never ending rabbit hole - really interesting the more you get into it.

10 micron (0.01mm) is pretty reasonable tolerance for a lot of stuff. The laminations in Tesla’s motors will be held to somewhere around that, possibly even tighter. Things like motor winding insulation coatings will be far tighter.

For something like body panels or plastic interior pieces it’s utter overkill and a waste of resources.

Crazy that nearly every culture on earth has a name for it that’s somehow related to animals getting married.

Wonder if they all stem from the same ancient folk tail or if it’s just somehow convergence.

Tangentially: Microsoft Teams and SharePoint web infuriate me daily. All the functions that should be separate programs are rolled up into one inseparable window forcing you into a single task workflow.

Want to have two folders open at once that you can drag between? Want to copy a file to your desktop? Read a message from a colleague while looking at a planner item? Pretty much any basic task that Windows 95 can handle with ease? You’re screwed.

These are all things that should be separate programs handled by the OS and a samba share. The MS Office ecosystem has regressed massively over just a few short years thanks to teams.

There’s a station I use regularly that has to have some sort of commercial plan. I regularly see cop cars, UPS trucks, and one time a yellow cab filling up there.

Danny Ric trying to hide a smirk

With PCIe you can actually jam a 16x card into a 1x slot if you saw the back of the slot off. I’m guilty. It works fine but just runs at 1x speed.

Although often the opposite of ergo, I did finally start documenting some of my keyboard projects in a wiki:

https://github.com/jsheradin/kb_adventures/wiki/20220930-Nixdorf-8850

Always love seeing some vintage stuff covered on your site!