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I heard about this yesterday and this makes me sad. One of th companies that I used to work for, went through a similar situation. Of the 350 employees all but 35 were “laid off“. They did not

Good stuff. There is a huge amount of technology out there. I'm still in the age of simple machining and napkin design.? ?No edm, CAD, mill power feed, CNC, etc.? ?8^) -- Lone Tree, Colorado?

I done a lot of tapping using power. Hundreds of thousands of tap holes. I used both drill press using a drum switch and tapping head. Dave

Looks great Dave

Hi Bruce look into internet archives on the net there is so much info there.

As read you things in old magazines? that are new today. Maybe they read the old magazine too. I do not know why there not more written on EDM tap removal. I have run a edm to remove broken bolts. It

One of our group moderators, DrMico60, has built and then improved an EDM suitable for tap removal, see: http://mikesworkshop.weebly.com/a-spark-erosion-apparatus.html He provides enough info to allow

It’s amazing to read through these old magazines, and realizing just how much the internet has displaced them in such a short time, and the fact that before Google Books, just reading through these

EDM has been around since the 1700's. You think more written about a simple process. What found in pass was 40 to 50 volts DC was good and safe. I found data some machines use a high frequency to get

Interesting, the May 1950 issues is 314 pages - not a typo three hundred fourteen...

Correction: $60-$70 replacement part ralphie

I've not done any power tapping wit my mini-lathe, but I have with my mini-mill.? I remember once that I had a aluminum bushing holder on a John Deere walk-behind snow blower on my deck that was worn

Popular Mechanics has it’s full archive on Google Books free to read, and their indexes are pretty good: https://books.google.com/books/about/Popular_Mechanics.html?id=49gDAAAAMBAJ

Vid dropped this morning by Mr. Pete about Starrett being acquired. " ATHOL, MA, March 11, 2024 – The L.S. Starrett Company (“Starrett” or the “Company”) (NYSE: SCX) today announced that it

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I do most power on? all sizes of tapping . I have a drum switch for tapping on my mill for work. Dave

I have use a Dremel cutoff wheel but on small taps did work. *One way I used one time on a 2-56 in model airplane engine mount. A broken tap it work using a brass welding rod and grit . Took some time

Another thing that helps is using a short handled tap wrench, it's easier to limit torque. Roy

I found a site that at least shows a couple pages (p151-152) of the March 1968 Popular Science EDM article. In referring to the article this is stated:? "The technology is not new, back in

Lately I have just chucked the tap into my drill and ran it into the piece being tapped, usually steel. This is since I found these: YG-1 - F4403 F4 Series Vanadium Alloy HSS Spiral Flute Tap, Steam