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Ah. So you do exactly the same thing mine does for following the flank. The only difference is mine doesn't do the extra move in the Z threading direction before it waits for the index and does the

Hello, All, Like John Lindo, I have also used Richard's system to cut both plunge and 29.5° "compound simulation" threads, and can confirm that both work well. Unlike John, I have only had my

My X infeed per pass is based on a constant area calculation where obviously the depth of the very first pass dictates the area of the first cut and therefore subsequent cuts. When commencing an Auto

Well if you are following the hypotenuse of the 28.5 degree triangle then for each pass X is a bit deeper and Z is closer to the headstock if the thread is cut towards the headstock. Simple trig.

Wow John you have got me worried now! I did not think that it was "clever math" so I had better go back and check what I did. Richard

Sorry, I meant Richard. John Sent: October-18-20 9:31 AM To: [email protected] Subject: Re: [digitalhobbyist] No compound Hi Ralph, So you have written the 'clever math' to do this.

That was not me, believe me I am not even capable of thinking of what I might want to do. That was Richard! Ralph wrote:

Hi Ralph, So you have written the 'clever math' to do this. Super. Looking forward to a detailed explanation on how you've done that. John Sent: October-18-20 1:38 AM To:

John, John, Jack or Jill I am so glad to get the responses. I am one step closer to actually using some form of motorized Z with the Z motor mount. Hopefully X will follow. Ralph

Wow John, that looks great! One of these days I am going to have EazyCNC <http://www.eazycnc.com/welcome/welcome.php> running on my mill. Ralph

Actually John I think that Ralph was directing the question to John Lindo! Further to the comment you made that I repeat below, sorry John you are incorrect. I am using the Russian ELS on on Arduino

Engraved a plate for a future 3D machine fan control project. Using a Weiss mini mill with additional 4 axis CNC control Came out well I think , but sorry a poor photo. but just zoom in. I hope of

Ralph and group. I removed my compound slide about 2 yeras ago off my 7 x mini lathe. Put on a riser block to accomodate the difference in height minus the compound slide required for the

Hi Ralph, Much of the explanations are probably in the E-Leadscrew archives which unfortunately are pretty large. My ELS uses time to determine where the start of the thread is. If the spindle

I have the Z motor mounted. [image: IMG_20201017_173746594.jpg] Now how will I align the coupling? I have less than 6" of space. I could make a 5" straight edge. How critical do I need to be? The

Thanks John, that helps to understand. Ralph wrote:

Hi Ralph, I posted directly to the AtomicELS group with a description of how my ELS tracks the flank of the cut thread regardless of the use of the compound or not. This approach is _not_ possible

John, could talk about/describe not using the compound to cut threads. What advantages have you found? What shortcomings? There is a discussion on the AtomicELS group (

John, Thanks for the funny story! Another hilarious bit: A nominal 2"x4" board starts out 1.56 in. x 3.58 in. Then, the edges are surfaced (planed), reducing the actual size to 1-1/2 in. x 3-1/2

A light hearted reply, we all need some of this at this moment, but true. In and around 1966 , UK changed to the metric system, and was not really a major issue or disaster. I was apprentice toolmaker