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At least he hasn't challenged anyone to a fight yet...

If you used "real" lathes, you would not be at all happy with the NIB A/C lathe. Find a better option...

That's pretty good - usually you just get your scrap back...

That's a good sign. I don't have much more to say, good luck and let us know how it works out.

Yes, CN is the country code for China. The "Bear Brand" is Grizzly, just one of the vendors of Chinese lathes around the country. I'd look for a new machine, one with a quick-change gearbox to...

Well, as I said it could work out. But SOB's have at least a partially deserved reputation, so without knowing the ethos of the kid I can't really give much other insight.

Perhaps you'll get some...

I have a bit of understanding of aero/hydro dynamics, and did work in a research wind tunnel for a while, but am hesitant to give advice to anyone trying to do what you are without massive caveats. ...

Throw some arsenic into the melt, so you get at least SOME of the flavor of Cd-bearing silver soldering...

[The preceding is humor, please do not attempt]

I bought a CAT 60 holder just for the lols, I had no use for it otherwise.

And yes, it's huge - makes a 50 look like a 30...

If you want a working machine, you'd be much better off (and dollars ahead) to buy one of the better CN lathes. I know it goes against the grain here, but the "Bear Brand" may offer something that...

I don't know about everyone else, but to me this screams "booby trap!". I can see so many things going wrong, from SOB not working out, to really hard feelings over "betrayal" (whether...

Aren't Carbide Source and Carbide Depot different companies?

I've bought from the 'Depot many times, but never checked their calculators. Maybe they're as bad at math as I am...

I'm not sure what you designed, but my thought is two or so ramped longitudinal fins (much like miniature keels) in front of the props from ~1/4" 316 stainless. The ramp to push debris down below...

Next time you contact them, tell them to correct this page:

milling-solidcarbide-standardseries-imperial | Carbide Source

where they have the images/names for their radius and chamfer edged...

Seems like you'd be best off posting a new thread that focuses on your needs. At least you'll get fresh eyes on it...

Link spam reported.

It would be nice to get a confirmation that spam reporting is desirable. Anyone get feedback on that?

I would have been, but my folks decided it was too small to settle in...

The gear shown in that video went into my pocket watch.

And it was a pinion!


[No, I don't care about your O-pinion...]

I'm thinking along the lines of trained sharks with carbide false teeth. Sink your giant ingot into the ocean, give the sharks the lines plans, and stand back. Use similarly outfitted piranha for...

Well, there's this:

1/2 TOz Solder Handy & Harman Easy-Flo 45% Silver brazing wire w/Cd 1/16" | eBay

And you could redraw the wire to a smaller size if you needed. Just may need to anneal it...

Can you change the process to use a superabrasive hone as the finishing tool on the bore? More costly to implement, but should be reliable regardless of the metallurgy...

I'm with the "cover your ass" crowd, there's certainly a risk of warpage during the blasting.

Now, if there's enough money in this project and there's a good reason, then a proper robotically...

To the OP, the 3D printing I mentioned would be using something like electro-arc melted metal, either Al or steel. Basically a giant MIG welder on a similarly large robot arm setup (or more likely,...

More to the point - we are approaching a time where 3D printing a full boat hull could be not only possible, but economically viable.

It sucks, but I suspect if you get some compensation for labor it'll be a courtesy from the steel vendor, not policy.

If you get a replacement piece from the company, either do a radiology test...