You are correct of course, I was boggled up with a recent review over the difference between precision and accuracy from HS math for a different application and I misapplied the concept. My calculator

It really doesn’t matter what you use for PI if you are looking for an exact number without errors you are out of luck. No one has ever solved for PI exactly and they are up into the billions of digit

Bob, That would be 22/7 Chuck Lippmeier

Do your father’s memory a good turn and get into it. It’s what I’d want from my son. Chuck Lippmeier

Paolo, I just happen to have a copy of Home Shop Machinist's Workshop and sure enough the ad was there. Last night I went to Harbor Freight and bought one of the 4X6 metal band saws. I got it home and

That is a really good deal. Here in MA they advertise for $249 on sale down from $299. I may just get one anyway. Chuck Lippmeier

Recently I bought a Rikon 14" Pro band saw mostly for the wood shop. When I went looking around for an assortment of blades I found a 14TPI bi-metal blade that fits. Is it safe to use it to cut steel?

Sorry, I just saw Iron Man 3 and thought of you all. Chuck Lippmeier

Just saw this CL post http://boston.craigslist.org/sob/tls/3768621707.html Thought some of you would be interested Chuck Lippmeier

OK group, I took the advice from the group: compound set to 29.5 deg, work between centers, sharp bit, verified 60 deg cutting angle, only advance the compound on every pass, back off on the cross sli

These are all good advice. The next time I get shop time to try threading I'll use these techniques and let you know how it turns out. 45 years ago I ran a lathe in HS machine shop class. I made a scr

Eric, Actually, I only cut about 1-1/2" of thread on the end of that 6" stock. It kind of made its own relief cut because I disengaged the half nut at the end of the thread before backing the cutter o

Last night I tried to cut a thread for the first time and made a terrible job of it. I'm aware that I should have supported the work better than I did but here goes my tale of wo. I chucked up a 1/2"

I forgot to mention that the posting says estimated delivery on or before Apr 25th Chuck

I just called Shars on the phone to clarify an e-Bay listing for a 6" 3 jaw chuck with a 1-1/2"X8 TPI back plate. There was some confusion because the listing also said it was a 2-1/4"X 8 TPI and it w

Yep, it was further to the right Chuck

By the way I’ve enclosed a picture of the gear I’m talking about. Chuck Lippmeier

Allan, Oh, that makes sense. I didn’t look that far when I studied the use of the gearbox. Thank you, Chuck Lippmeier

What is this gear for? I can't figure out how to engage it with anything. Chuck Lippmeier

Just to bring us up to date: This evening I was able to part a 0.030 shim/washer from a piece of 1" round steel stock that I bored a 3/8" hole in the middle of. Though I measured that I would only nee