Tuesday, September 30, 2008

Just Hanging Out

Well, Henry started taking Taekwondo lessons. The local ATA franchise is Karate for Kids in Corvallis and they have conveniently started giving classes at the local Philomath dance studio, so it's less of a commute. 2 classes a week, only 1/2 hour at a time...

The uniform is cool, as is Henry.

He likes the classes.

Max has another opinion on the subject of outfits. He'll start Taekwondo in a year or two.

Max made this "Batman" mask at the Fall Festival in Corvallis. I think he looks more like Hawkman. I brought both boys down and we all vended(?) as a family. We were set up at what we call the "fake fall festival" which takes place across the street at the First Christian Church.

Extending an existing woodruff keyway for the neighbor. Notice the jack supporting the free end against the force of the cut.

Sunday, September 14, 2008

Corneal Abrasion, Helicoils and an Anaglyph

Thursday night, in a bout of typical roughhouse on the couch, Max managed to scrape his fingers across the surface of my eyeball. The good news is that corneal abrasions heal very quickly. The bad news is that while they heal it feels like there's a porcupine rolling around under your eyelid. But I'm all better now.

Rudi, our next door neighbor at the Saturday Market, stripped out one of the clamping screw threads in his Sherline rocker toolpost. He uses a Sherline lathe for some of his turned boxes and needed it repaired or replaced ASAP. So I volunteered to fix it.

Out came the #10-32 tpi Helicoil kit.

The stripped hole on the right.

Drilling out the hole.

Tapping with a Helicoil tap. The tap is of the same pitch as the stripped hole, but with a larger diameter.

The helicoil insert. It is basically a helical coil of wire.

The straight tang at the end enables the insertion tool to drive it into the hole.

The insert is loaded into the tool and screwed through the body to compress it around the insertion screw. Then the end of the tool is pressed against the hole and the insert screwed in.

And the insert is inserted.

The tang is visible at the bottom and must be removed.

One sharp whack with a punch does the job.

I found my old Red-Blue Anaglyph camera jig and showed the kids how to take 3D anaglyphs. I used the free Anaglyph Maker software.

How I ever got Max to stand still for the minute or so it took to make the two images I'll never know.

Wednesday, September 03, 2008

Modifying Some Parts for Spud

Spud wanted me to bore out some parts for him.

Of course he wanted me to bore out some seriously odd shaped parts...dialing in the center on the 4 jaw chuck, trying to remember not to hit the internal keyway as I rotate the chuck around.

Taking a pass, I had to go lightly due to the interrupted nature of the cut.

Zeroing a caliper, with extensions, on a gage block stack. I checked diameter after each pass.

I set the tool to just kiss the bottom of the bore and zeroed a travel indicator.


A few of the parts.