Experimenting PCB rendering using KiCad, FreeCAD and Blender

Anool from Wyolum has published an exciting blog post about 3D renders:

Experimenting PCB rendering using KiCad, FreeCAD and Blender

I’ve been putting off using Blender since over 5 years, being intimidated by the complex UI and workflow, until this month when I mustered courage to go through Andrew Price’s Doughnut tutorials. My aim was to learn how to do photo-realistic renders of KiCad boards.

Experimenting PCB rendering using KiCad, FreeCAD and Blender

Applied Ion Systems: open source space propulsion

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Michael Bretti of Applied Ion Systems describes open source space propulsion at the 2020 Open Hardware Summit:

Applied Ion Systems is creating open source electric propulsion systems

Applied Ion Systems initially started out of a personal hobbyist effort to share projects involving plasma systems, particle beams, and and high vacuum projects.   Later, as I began to expand my efforts and meet awesome makers around the world, I began focusing my efforts on open source electric propulsion for small satellites, such as PocketQubes and CubeSats.

Eventually, this effort evolved into the world’s first and only open-source home-based electric propulsion program, working on cutting edge plasma and ion thrusters for small satellites on a hobbyist level budget.

My main objective was to provide intensive engineering resources, data, and system designs for the community to help lower the barriers of entry into the field, and allow enthusiasts to follow along the journey of creating and testing these advanced systems, with the ultimate goal of developing low-cost, easy-to-use, fully integrated space-qualified thrusters.

Applied Ion Systems: open source space propulsion

OSHWA: How We Made the Open Hardware Summit All Virtual in Less Than a Week

From OSHWA president Michael Weinberg:

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How We Made the Open Hardware Summit All Virtual in Less Than a Week

First, thank you again to everyone – speakers, participants, and sponsors – for a fantastic 10th anniversary Open Hardware Summit.  We knew the 10th anniversary Summit would be one for the ages, although we didn’t quite expect it to be because it became the first virtual Summit.

Thanks to the timing of the Summit, the 10th anniversary Summit ended up being many people’s first virtual summit of the Covid-19 era (that includes the organizers).  Unfortunately it looks like it is unlikely to be the last. In the hopes of helping event organizers struggling with the same challenges, this blog post outlines the decisions we made and the steps we took to make it happen.

Quick Context

The Open Hardware Summit is an annual gathering of the open source hardware community held by the Open Source Hardware Association (OSHWA).  This year OSHWA partnered with the Engelberg Center on Innovation Law & Policy at NYU Law to host the event in New York City.  The event usually brings together hundreds of community members and speakers from around the world.  It was scheduled for March 13, 2020.

While the situation has been evolving for some time, as recently as March 5th (8 days before the Summit) we thought that holding a reduced in-person version of the event was the right decision.  By March 8 (5 days before the Summit) that was no longer tenable and we announced that the Summit was going all virtual.  That was the right decision, but what does going all virtual mean?

Priorities

We had two major priorities for the virtual Summit:

  1. Online streaming video of all of the speakers and panels.
  2. A community space for discussions and coming together.

Video

The live stream of the Summit had to be both accessible to our viewers and easy to join for our speakers and panelists.  After considering some options and consulting with experts in our community (huge thank you to Phil Torrone at Adafruit for the guidance), we concluded that a combination of YouTube and StreamYard would be the best option.

YouTube worked for our community because it is easily accessible on a wide range of platforms in most of the world.  That meant that just about everyone would be able to see the Summit from wherever they were.

StreamYard made it easy to manage the backend.  Speakers could join a virtual green room before their talk and our technical testing the day before the Summit made it clear that it was easy for them to share their slide presentations as well.  One of the members of the Summit team was able to easily add and remove people (and their screens) to the live feed, along with stills and slides for introductions, sponsors, and everything else.

Screenshot from 2020-03-20 13-59-37

Community Space

We also looked at a number of options for online discussions.  We decided that a discord server would be the best option for the open source hardware community. Discord allowed us to open the space to anyone who wanted to join, while at the same time giving us moderation control over the discussion (huge thank you for Lenore Edman from Evil Mad Scientist Laboratories for jumping in as a moderator).  Many community members were already comfortable with discord, which was also a bonus.

We also decided to use discord for a version of Q&A for the speakers.  One option would have been to try and integrate video questions from the audience into the live stream. That would have been technically possible with StreamYard (probably…), but it seemed like an unnecessary logistical complication for the organizers.  As an alternative we decided to set up separate discord channels for each of the speakers. That allowed the speakers to end their talk and move to their discord channel for further discussions.

One unexpected and welcome development was that the discord server grew into a larger community hub, with channels devoted to solutions to Covid-19, community announcements, hacking the conference badge, and even virtual conference tips.  We may decide to maintain the server well beyond the Summit as a community space.

It Mostly Worked

We scheduled brief runthroughs with all of the speakers the day before the Summit. Everyone had a chance to get comfortable with the process and work out any last minute problems.  On the day of the Summit we embedded the livestream in the Summit site, along with a link to the discord server for discussion. There were a few audio glitches where speakers had to briefly drop out, but all things considered it went pretty smoothly.

Once the Summit was over the entire livestream of the Summit was posted automatically to OSHWA’s YouTube channel.  Within a day or two we had broken out all of the individual talks into a video playlist and pulled the audio from our panel discussion into a stand alone podcast episode.

To the extent that things worked, one of the big reasons was the nature of the OSHWA community.  Besides being generally great and supportive (no small thing), the open source hardware community already sees itself as a community and is already comfortable with connecting via online tools.  That made it easy for them to enthusiastically watch the live stream and jump into the online discussion. Not all types of events have this starting point, which may suggest that they are not great candidates for this type of virtual structure.

If you are reading this because you are working on your own virtual event, good luck!  We are happy to answer questions if you have them. Email us at [email protected]. StreamYard also has a referral program, so if you drop us a line at [email protected] we can give you a $10 credit if you want it.

OSHWA: How We Made the Open Hardware Summit All Virtual in Less Than a Week

How to join the virtual Open Hardware Summit tomorrow

Screenshot from 2020-03-12 10-15-35

Due to the COVID-19 virus, the Open Hardware Summit has been moved from NYC to cyberspace!

2020.oshwa.org

 

How to join the virtual Open Hardware Summit tomorrow

Goodies for the Open Hardware Summit

The Open Hardware Summit is next week, March 13th!

Here’s a sneak peak at one of the items that everyone will receive in their conference goodie bags:

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Thanks so much to Kevin Walseth at Digi-Key for making it happen! ⚡️

And thanks to our Dan (@tekdemo) for the beautiful “After Dark” PCB art  🦋

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Thanks to Chris Gammellfor the “Getting to Blinky” videos! 🎥  It is a great way to learn KiCad:
Screenshot from 2020-03-06 11-38-24
Thanks to Kyle at Digi-Key for showing what that board looks like in action!
Screenshot from 2020-03-06 12-33-11
I made the curved traces with the “Rounder for Tracks” KiCad plugin from the RF-tools repo:
Here is the GitHub repo with the KiCad design files: pdp7/gtb
If you can’t make it to the Open Hardware Summit, then the design is also available an OSH Park shared project:
Screenshot from 2020-03-06 12-06-23
Note: after adding the board to the cart, please click on the “After Dark (Black Substrate + Clear Mask)” option
Follow me on Twitter for updates on the Open Hardware Summit:

Goodies for the Open Hardware Summit

Open Hardware Summit: Open down to the transistor!

https___cdn.evbuc.com_images_65381743_37620015542_1_original (1)The 10th Open Hardware Summit will be on March 13th in New York City.  I am looking forward to this talk from Tim ‘mithro’ Ansell:

Open down to the transistor! A new revolution in open IC creation

With the slowing of Moore’s Law and the success of the RISC-V ISA there has been a renewed interest in developing truly open integrated circuits (IC). Tim ‘mithro’ Ansell has spent the last 2 years working at Google trying to remove roadblocks and enable the future to be open all the way down to the transistor.

Come find out about how a modern integrated circuit is developed including what software tooling and manufacturing data is needed to build them. The talk will include a background on existing resources, information on both the new DARPA programs enabling new tooling and the new resources Google has released (including a new open source PDK), and finally initial details about a program to help enable everyone (academics, hobbyists and companies) to create integrated circuits that are open down to the transistor!

Be sure to buy tickets before they are sold out!

speakers

Here is the exciting schedule:

Screenshot from 2020-02-17 20-31-51Screenshot from 2020-02-17 20-31-58

 

Open Hardware Summit: Open down to the transistor!