Example: US-0204/5 or US-204/5V
US = US symbol. Grid will be in inches (probably nearest .1 or .05 inch increment)
02 = 2mm (≈.08 inches) body diameter
04 = 4mm (≈.16 inches) body length
/5 = 5mm (≈.200 inches) lead spacing. (Note: US designation)
/5V = Vertical orientation with 5 mm lead spacing
DipTrace is a great schematic capture and PCB layout CAD/EDA program for Windows and Mac. It’s my go-to for quick prototype boards. The interface is more intuitive and the learning curve is far easier than any other electrical CAD/EDA tool I’ve used (Mentor, Cadence, Altium, KiCad, EAGLE).
Having said that, DipTrace does have its own quirks. Some of the finer details, like solder mask and paste mask settings, can be tricky to figure out. Luckily, the documentation and online support are pretty good.
There’s a great little write-up in Make:Magazine by the people at Artisan’s Asylum in Somerville, MA about the economics of creating a makerspace business. It’s several years old, but it’s probably still mostly applicable. Adjust for inflation, etc.
There have been several articles [1, 2, 3] in the last several years about the gender, or sex, disparity in what the press refers to as “tech companies” (more accurately, Silicon Valley software companies). There are racial disparities in representation as well, but this post will focus on the gender disparity.
While the US is about 50/50 male/female (48.9% male, 51.1% female in 2016 via Wolfram Alpha), the breakdown of college degrees is not.
The first mistake is “multiplying big numbers by 1%.” I have personally seen this mistake committed by others in my startup travels — and not by newbs either, by veteran entrepreneurs. Successful veteran entrepreneurs.
On Linux command line, the which command will help you find which executable is tied to a shell alias. For example, if you want to know what python executable is being called when you type python on the command line, you can do
$ which python
and it will print out the path to the python executable.
On Windows command line (cmd.exe), the analogous command is where where python
This doesn’t work for builtin shell commands like dir (Windows) or cd (Linux) because they don’t actually point to an executable anywhere in the file system, they are built in to the shell.
Win + Tab: Task View, then Tab to highlight your Virtual Desktops, Ctrl + W to close the selected one, or Enter to switch to it.
This one requires some explanation: The Task View shows all your open windows laid out in a tiled fashion, similar to Alt + Tab. However, you can take your fingers off the keys after pressing Win + Tab and the Task View remains active and, furthermore, the open windows are shown across all monitors on your system (so you can see which windows are on which monitors).
From Task View, you can also manage your Virtual Desktops. At the bottom of the screen, you will see all your Virtual Desktops. If you only have one desktop, you will only see a “New Desktop” button in the lower right. By pressing the Tab key, the cursor will move down to the Virtual Desktop area and you can then use the arrow keys to highlight a Virtual Desktop. With a Virtual Desktop highlighted, you can then press Ctrl + W to close it, or press Enter to switch to it.
I had a little trouble installing the correct driver for the printer but eventually got it to work — here is how it went.
The manufacturer says the driver is already included with Windows OS:
However, I could not complete the driver setup instructions because the setup program (Add Printer) hung when I clicked on the “Windows Update” button, as directed.
So, as a first workaround I did the following:
I chose from the “generic” list of Brother drivers the one called “Brother Laser Type1 Class Driver.”
This worked just fine for a few prints I needed to do before I found some time to troubleshoot.
Later, I opened up the printer properties window and clicked the “New Driver” button:
Then, find and click “Brother” in the Manufacturer list. Then click “Windows Update.”
Wait a minute or two for it to finish downloading the drivers, and then the Printers list should show a bunch more drivers. Find “Brother HL-5250DN” and select it, then proceed through the rest of the dialogs to finish it out.
Once that is done, you should be back in the “Properties” dialog window. Make sure to click OK or Apply so that the new setting is saved.