I mentioned that becoming serious engineering tool. One good soul made demo of workbench in 0.17:

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Normalise not knowing things.

You don't need to always know things, and you don't need an opinion on everything.

In fact, sometimes it's better to not know things. That means you have the chance to learn something new!

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I'm starting a series of videos about the excellent TechDraw workbench. Here's episode number 1 covering the basics

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One day I would like to put all open-source operating systems developers in one room and put one single slide on the screen:

"There is only one Donald Knuth and you are not him.

And no, you are not even Brian Kerninghan or Dennis Ritchie¹.

Learn to manage your ego."
¹ I have actually met dmr as an 8 yr old child and asked him to explain printf() varargs to me² which he did in the kindest, gentlest, non-condescending way.
² Yes, I was taught C & Lisp aged 6. Explains things, right?

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@tom79 #Mastalab keeps crashing for me when I try to access this account in it (a #Pleroma instance), but it's okay with my Scholar.social account (#Mastodon). Any idea what might be causing it? 😥

A bit more about @FreeCAD - one possible deck layout of our hybrid powered workboat, elCAT-0. Done in @FreeCAD, A2plus workbench:

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I've written an article about how to view #IFC #BIM files on #Linux, starting with tools with #FreeCAD but also talking about other IFC libraries.


If you work in the AEC industry, please support IFC development. The industry is stuck with proprietary tools developed by monopolies, and needs more #opensource and international standards.

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For those interesting in Engineering in traditional sense, with open source software - FEA simulation done with almost 20,000 elements in Salome_Meca:

MS Windows is 2 million lines of code. Google (all services) are 40 times bigger and all in one place:


@FreeCAD became "professional" package. Structure of our hybrid powered workoboat, elCAT-0 is done in FreeCAD:


Fosstodon is a Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.