开云体育

LOL! -- Regards, Charlie New Jersey, USA *SATTINGER’S LAW: It works better if you plug it in. EDWARD'S LAW: It works even better if you turn it on. *

I have tried to follow this thread, and the thing I see is a question, HOW FOR HUNDREDS OF YEARS< HAVE MACHINISTS MANAGED TO PART ITEMS IN A LATHE????? Answer SKILL!!

When I'm parting or facing I (manually) crank up the RPMs as I approach the center of the work.? Not for the "science" of cutting as such, just so I don't have to slow the approach down a lot as I

I had forgotten the discussions we have had about CSS. Gee you are only 3 hours away. Ralph

Ralph, I don't know what you meant by the following, then: "I still find it strange to call it Constant Surface Speed when the speed is not constant." I live in Middlesex County... -- Regards, Charlie

Thanks Charlie, DUH, I knew that. But I appreciate the refresher. Where are you in NJ? I am out on Long Island on the East End. Ralph

Ralph, The *RPMs* are not constant, but the *surface speed* is... or, more accurately, in this system it is approximately constant between two limits. This is an extremely important concept to

I still find it strange to call it Constant Surface Speed when the speed is not constant. I saw an ad for a $500,00 lathe that programmable variable spindle speed was a big part of their promotion, I

Just a comment about the CSS that John is referring to here. There are much more sophisticated ways to implement a CSS than what John and I did here, but he wanted a very simple to assemble and?

Greg, thanks, lots to work through regarding my mechanical tinkering of ideas from the past, mini lathe and mill and 3D printing. Much appreciated is the help and patience from Richard and Charlie on

Dear John, I'm your 18th subscriber and looking forward to a weekly video update! Your a man of many talents Fair well Greg

Greg and members, Ref you tube postings. Just doing a spring clean on my computer and found this.maybe of interest. https://www.youtube.com/watch?v=ancIoRSF2RI This was me machining more gear

I found this video on you tube, my wife took possibly 5 years ago and sorry not Hollywood but hopefully shows the invaluable use of my Constant Surface Speed attachment.

---------- Forwarded message --------- From: John Lindo <bechetboat@...> Date: Thu, 8 Apr 2021 at 18:31 Subject: Re: [digitalhobbyist] Swing up tool holder files #MISC #MODS #LATHES #file-notice

thanks John ??? ??? animal

Good question. The drawing shows a pin on the swinging arm and in the block there is a accurately positioned slot. It used to be the thrust stop when cutting left hand threads, IE The tool going away

John, What is the purpose of the two "Optional Rods" shown in the "Swinging Tool Holder External.pdf" file? -- Regards, Charlie New Jersey, USA *SATTINGER’S LAW: It works better if you plug it in.

I have added two files in the Files section. Generic dimensioning as each? lathe and toolost holder will be different I useed a 626Z bearing. Any extra info required then please post. -- John

The following files have been uploaded to the Files area of the [email protected] group. * /Swinging Tool holder External.pdf ( /g/digitalhobbyist/files/Swinging Tool holder

Thanks John, the motorized Z drive system I am close to implementing AtomicELS </g/AtomicELS> does not have a X component. So the swinging tool holder is high on my list. I hope to