The Home Machinist!

I agree that losing critical parts of an old control can be a problem, but I'm not convinced the risk is large enough to suggest that someone skip a machine for that concern alone. For those who cannot stomach it or are adverse to working on equipment, a knee mill with a simple control is probably t...

And now, a tangent. tl;dr: look a vmc/hmc before a knee mill, space permitting. We have a very early 70's horizontal OKK at work. It's an old mill, with some ridiculous (80's vintage) Mitsubishi control. It has no enclosure, sprays coolant everywhere, and the control is almost out of reach of the sp...

Both community colleges I have attended had machining classes. One has a whole machining certificate (Delaware Tech, the Stanton/Newark campus). I've found it shocking, but most colleges, period, have a machine shop of some sort. Some large with CNC, some small with a couple donated machines. If I w...

Jose Rivera wrote:Trying to get scientific can turn things into a mental nightmare of the ones toastydeath loves :-)

But way out in left field is very nice this time of year! Look at all the daisies!

I know the other dudes did the math, I just want to post my numbers up here for posterity. SFM = RPM * (pi/12) * diam SFM = 2950 * .2618 * .125 SFM = 96.5 1% of the cutter per tooth is considered a "good" cut, and one that most cutters can handle at most sane depths of cut. .75% is a more ...

1. I have seen some lathes that are either first operation, or second operation machines... What's the difference? Tooling? Capabilities? First/second op lathes are not meant for general machining work. They're set up to do a few specific operations the same way a bunch of times, and they're not ec...

You can get very accurate acme screws, and you can preload them with a little weight for stability. By very accurate, I mean you can get what is essentially a inspection-grade gauge block installed in your lathe - .000010" total tolerance or so over the entire length of the screw. It will be mo...

It's not a board, you don't need any kind of membership to join. In fact, this is the only machinist chatroom I'm aware of in existence. You visit the website, and click on the enter link near the bottom of the page. The chatroom comes up and you can start talking. No sign up, no nothing. It's anony...

It has to be something concerning your security settings. There have been folks on XP, Vista, Firefox, and IE coming in and it works fine. I'd love to help and assist, but I don't know what could be going wrong.

I'm using firefox, and so are other people who joined. Works fine.

If you are on IRC, irc.freenode.net #machine

I actually prefer it if people used real IRC clients instead of the web thingy, but that's not feasible.

There was discussion of a PM-sponsored chatroom in a freshly-dead thread. That got shot down, so I threw my own together real quick. http://machinechat.freehostia.com/ Everybody's welcome. This is meant for the more experienced crowd, home shop and professional alike, but nobody's going to get kicke...

Glenn Wegman wrote:Different machines will produce different results. Unfortunately I don't have a 40 hp Matsuura :cry:

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