Press "Enter" to skip to content

Some Minor Progress…

Just a minor progress update. I’ve been adjusting the CAD design and working on some additional parts. A snapshot below….

AUV design snapshot, January 2017. Cutouts for the imaging sonars are visible. These will probably change…

I also finished grooving the prototype bulkhead ring. It wasn’t super easy, and I’ll need to experiment with feeds and speed some more to get nicer cuts. I’ve also had a plastic order come in, so I’ve done a test fit of the bulkhead into an extra piece of acrylic tube. It’s a tight,  but good fit! I just need to machine the remaining bulkheads and anodize them before I start pressure testing.

Test fitting a bulkhead into an acrylic tube.

I’ve also been working away on the nosecone plug — Adding layers, then machining it down to get it smooth — Once it’s in the right shape, I’ll manually sand it smooth and start the process of sealing with epoxy. This is a pretty messy operation, as the spackle turns to dust, so I typically do the machining with the vacuum hose right beside to suck it all up.

In the photo below, you’ll also notice the standoff I made to mount the toolposts higher in order to machine large diameter parts — Here I’ve got two spacers mounted to get over 6″ swing over the bed with the Sherline lathe. Since it’s a very soft material, I think it’s okay, but this would be quite non-ideal for machining anything harder. (To do the outside of the bulkhead rings, I just mount a single spacer and use the smaller toolpost. Still not as rigid as I’d like, but it’ll do for this small job. I do wish I had room for a bigger machine, though…)

Turning the nosecone plug. The toolpost is mounted on a special standoff I made to turn large diameter parts.


  1. Kevin Klemens
    Kevin Klemens April 13, 2017

    Just came across this project, looking great! I’ll be interested to see where you go with it.

    • Roger
      Roger May 3, 2017

      Thanks Kevin!

      Progress won’t always be as fast as I want it to be (I’ve been sidetracked with work lately), but I’m picking away here and there.

Leave a Reply

Your email address will not be published. Required fields are marked *