VHS got a 4-jaw chuck for its green engine lathe in 2025. 4-jaw chucks are cool because you can machine material off-center. To try this feature, I designed a non-functional pair of offset cylinders to be machined from aluminum.
I couldn’t find rectangular scrap at Capital Salvage or North Star Recycling so I picked up a half round chunk of aluminum. After some band sawing, lots of face milling, and more band sawing, I finally had a nice small chunk of aluminum to start my project.
Chopping down the half cylinder
Squaring off one face with the face mill.
The VHS 4-tooth indexed face mill is sweet. It removes material faaaast. 
Six sides done.
Finally we cut off a small rectangular chunk for my project!
Ok chucked up and ready to go! Note that this is centred on one side of the piece - hence ‘off-centered’
I should have taken more in progress shots. Ahh well, next time.
Drilling was not in my original design but I decided to give it a go.
I also wanted to try a boring bar which I’ve never used before. Boring bars let you machine precise holes that are larger than drill bits
First offset cylinder done. Next up is to flip this around and do the cylinder on the opposite side. It might be a while before I get to that. 
This was a fun learning project. Project finish is so-so. No tolerances were observed or met. 
VHS also has a small mini-lathe. It is fun and much less intimidating for folks to get started with machining. Ask on Slack if you’re interested in training on this or the engine lathe!
I hope to see more folks making chips in the machine shop.