Member postings for MikeK

The item in the middle of the upper slot appears to be a plunger, probably to engage a gear for indexing.

Welcome, Gary. I think my mother was born in Belfast. I know her father started a restaurant there (~ WWII) that my cousins say still exists.

Mike

Thanks for posting that, Hopper. I just started watching his videos. Man, he knows how to get it done! While I would never weld work on my lathe, he has plenty of techniques that I hope I remember for future projects. Good stuff!

Welcome, Shane. Camped at Devil's Tower some years ago...very cool.

Haven't done this, but if I had to do it I think I would try it by setting over the tailstock to cut the taper *and* the thread. Does that not work?

As Jason mentioned, the outside surfaces aren't registering anything. The collet holder registers against the spindle taper. And the collet registers against the holder's internal taper. You'll need a DTI to check both of those, which should show where the problem lies.

I agree. Although I would argue that Internet videos are consistently bad with a few good ones tossed in.

I'm American and I have to say that this forum is very good. Forums dominated by my fellow Americans can be brutal. Also - and I'm guilty of this at times - they too often don't read everything...Not reading previous posts and even not fully reading the original post. It's aggravating. It seems obvious to me that people who reply *here* have thoroughly read previous posts, the original post, and make well informed replies instead of a quick "well that's dumb, just do X!"

I hope the members who shy away from posting here would develop a little thicker skin and reconsider. Although I did spot the error in the Blondihacks video I appreciate everything Hopper has said....I hope Steve does too.

Sorry for the distraction.

Mike

Sorry, I posted that before I saw the video. I was making a joke, Steve.

Mike

Get a haircut.

In the States we have naval jelly, which is phosphoric acid. I see Loctite still makes it, but I'll bet only old timers have heard of it. "If it rusts, throw it away and buy a new one" is the thinking.

Thanks, Bill.

Mike

That is a great book. I've been looking for a decent copy since I saw it at the library.

I know I've seen this in a book, but can't remember where. I found this, though:

**LINK**

Mike

Edited By MikeK on 19/02/2022 03:27:13

The power of Plutonium-238! It's power budget is going to determine how much longer it stays alive and chatting. I read that the RTG has around 67% of its original power output and loses about 4 watts per year. It's projected to be DOA by 2030. She was a good ship! I still have the glossy photo of Neptune that it took.

Hi Bill. Using a fixed steady on a taper seemed like bad practice to me. That's safe? With basically point contact I assumed the steady fingers would wear quickly and allow the work to bounce around.

Mike

The arbor arrived today, replacing the first one that had a mis-tapped drawbar hole. It has 0.001" runout. Not bad, I guess. But my old arbor with an M12 drawbar hole has only 0.0005" runout, so I'll be refitting it for 3/8"-16.

Still haven't thought of how I can hold it in the lathe, though.

Mike

In every meeting of the Great Conspiracy they threaten me if I reveal the truth. Stick to your guns, Science Deniers!

I have seen that video. And he does a great job explaining things. But all the things I've read and watched have left me unsatisfied in answering Sam's question. And I think I understand what he's asking, because that's how I would phrase it.

Since there isn't an object at L2, what is allowing Webb to orbit it? Scott Manley simply says that "there is a force pulling it back", but doesn't explain anything further.

I think the answer is that Earth, and maybe the Sun too, is pulling on Webb and making L2 a preferable position than "some distance away from L2". That is...If Webb wasn't in a halo orbit around L2...If it was just sitting at L2 and you pushed it away from L2 a little bit, the gravity of Earth (and Sun?) would pull it back to L2. The situation just seems weird because Webb isn't orbiting a mass.

But also, "love". That's the "L" in "L2", afterall.

I originally thought it was "love", but I know that can't be right.

Whatever one gets into your body first is, by definition, first. Yes, you could get more than one simultaneously, if you get exposed to both. One might likely be better at overwhelming your immune system than the other, though.

(A Simpsons joke here: Monty Burns was diagnosed in one episode as having every possible disease, but they perfectly cancelled each other out. hehe)

And getting one variant may give your immune system help fighting another variant later. I think the vaccine was 90-something percent effective against the original virus, but 80-something percent effective against omicron (or maybe it was delta?)...But it wasn't zero percent.

Despite what many people might think, the danger is the viral load. Having just one, individual, virus in your body isn't the harm...and wouldn't even be detectable. It's the ability to wreak havoc and reproduce "like a banshee". There's lots of nasties all over and inside your body all the time.

By the way, your own cells that reproduce "like a banshee" is called cancer. Reproducing like banshees is best left to banshees. Or ban-hees?

There is a centrifugal force, from the JWST's speed around the Sun, pushing it further out. This is balanced against the force of gravity from the Sun and the Earth, pulling it in.