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But it's okay, because after 225-250 million years, the milky way completes a full rotation and... Oh, scratch that, the milky way is also moving through space. Oh well.

A few of my designs are available in two different places:

• https://www.thingiverse.com/graystone/designs
• https://cults3d.com/en/users/Greystone/3d-models

Fusion 360 has a free hobbyist tier. The only annoying thing is that you can only have 10 designs active at any time, but you can always disable (without deleting) old designs that you aren't working on.

To generate file hashes on Windows:

CertUtil -hashfile <filename> [<algo>]

For example:
CertUtil -hashfile C:\myFile.txt MD5

Default when not specifying a hash algorithm is SHA1.

P4 on the PI:

Download ARMHF version. chmod +x. Copy to /usr/local/bin. Create .p4config with all settings. export P4CONFIG=/home/pi/.p4config in .bashrc.

Or interactively:
sudo update-alternatives --config java
sudo update-alternatives --config javac

Install Oracle's JDK. I usually do this via synaptic. Next don't forget to switch to the Oracle JDK: sudo update-java-alternatives -s jdk-7-oracle-armhf Next install Pi4J. If on Raspbian, follow the Raspbian instructions: http://pi4j.com/install.html For Dallas 1-wire support and i2c you probably wa...

Got to try this tool next time I suspect DPC issues:
http://www.thesycon.de/dpclat/dpclat.pdf

How to clean up your GRUB: 1. Remove old linux kernels (save the two or three latest): 1a. List the ones you have: ls /boot/vmlinuz* 1b. sudo apt-get remove linux-image-<version>-generic, e.g. sudo apt-get remove linux-image-2.6.32-36-generic 1c. (Can also reinstall an old one with apt-get install ....

Windows 7, taking ownership:
takeown /f <folder> /r
icacls <folder> /grant <user>:f /t

For example:
takeown /f "Program Files" /r
icacls "Program Files" /grant Marcus:f /t