Project versioning and releases in the Files section
Hello guys, If there are any plans for improvements, and as I recall, Jon was considering something, then I would suggest to start versioning the project. It's not a very future-proof idea to have "SomeProject-master.zip" in the Files section. Any time the current version is considered a stable milestone, it should be tagged (git tag) and a release (I mean a github release) with that version number created. That release, which would be named something like "SomeProject-2.1.0.zip" can then be added to the Files section. Best regards Gene
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File /AtomicELS/ELS-Jon-master.zip uploaded
#file-notice
The following files and folders have been uploaded to the Files area of the [email protected] group. /AtomicELS/ELS-Jon-master.zip By: Ralph Hulslander <rhulslander@...> Description: AtomicELS Source Files
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Thank You, Ralph
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#INTRO
I'm the guy who has developed what I call the "Atomic ELS" electronic leadscew for my 1946 Logan Model 200 lathe. The name is related to the kind of work that I did until I retired in 2019. I was a technician at Sandia National Laboratories in Albuquerque, New Mexico for 38 years. That's nuclear weapons, among a great number of other things providing "Exceptional Service in the National Interest". Ralph has "helpfully" created this group to bring together like-minded people to implement their own versions for any make/model of lathe that they have/keep me honest/coerce me into staying involved/get me off my dead ass. So welcome to the group. Please don't hurt me (too much). -Jon
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Where is the source code?
I cannot find the source code on GitHub. Ralph -- Craftsman 101.07403 12x36 Lathe, Clausing 8520 Vertical Mill, Buffalo 4x12 Mini Lathe, Delta 14" Bandsaw. (The 12x36 lathe, 8520 and bandsaw are all powered with a Consew 3/4 hp Brushless DC motor)
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Any interest in having a FILES folder for the group?
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I am thinking of purchasing the next level of Group.io in order to have a files folder. It used to be $20.00 per month. The GitHub files would be copied here and then if anyone has custom files such as for the various size Nextion displays they could post them in a ready access place. There are other benefits to having a paid group, I am sure. Ralph -- Craftsman 101.07403 12x36 Lathe, Clausing 8520 Vertical Mill, Buffalo 4x12 Mini Lathe, Delta 14" Bandsaw. (The 12x36 lathe, 8520 and bandsaw are all powered with a Consew 3/4 hp Brushless DC motor)
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File /Matt H's Files/Nextion35.zip uploaded
#file-notice
The following files and folders have been uploaded to the Files area of the [email protected] group. /Matt H's Files/Nextion35.zip By: Matt Harrington <matt@...> Description: Nextion 3.5" HMI file. This can be loaded into the Nextion editor and then saved as a TFT output file which in turn can be uploaded to the Nextion via a MicroSD card
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Myford S7 install - progress so far
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I thought I would add a few photos of my progress so far. Having broken my 3.2" screen, I have borrowed another and await my 3.5"..... By putting the encoder pulley on the tumbler gear setup, I can completely disengage the system. The gear train cover still closes. I have yet to consider whether it is worth making a cover for the stepper end. The control box is still loose and can't be fitted until I have my NVR switch but once that is fitted, I can tidy up all the wiring. The stepper end setup has an idler gear - this was to make it easy for me to adjust the belt tension rather than putting the stepper on a sliding bracket (I also had a spare idler!) Once I have established how to create a video, I will upload something to show it all working.
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Nextion 3.2"
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I'm wondering if this size of screen is being discontinued? I had an accident yesterday and now I have a cracked 3.2" screen and no touch facility - aarrgghh! Trying to source a replacement requires quite a bit more cash or certain sellers say it is not available or being discontinued. The 3.5" one should be available at a sensible price - does anyone know if the 'code' will work with that size? I can worry about the format in due course. Matt
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CAD files (how to access)
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I am hoping soon to start an Atomic ELS build on my Myford and am making sure that I have all the information and sources before I start. The only thing I am having any problem with is getting access to the CAD drawings in the comcast directory. I am a Fusion360 (hobbyist) user but cannot see how to get the into my pc. I have looked through the various messages and seen Julian's excellent description. Any help would be much apreciated. Thanks David (Dorchester, UK)
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Nextion
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I'm getting there and today, the mockup allowed me to cut a very accurate M10 x 1.0 thread including stops - very impressed. One thing - is it easy to program the Nextion screen so that say, the direction arrows or the Metric / Inch boxes remain green when selected (or another colour)? It's probably me but I find the difference between grey and black a little confusing. The only other things that springs to mind is the ability to set the stops a little easier - the direction control takes ages to ram up and then becomes too fast too quickly - if that makes sense. I'm not sure if that is easy to change.... I'll do a video in a day or so with photos.... Matt
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eStop?
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I was wondering whether an estop was necessary with this system. If so, what would be the best method? Matt
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Just about to embark on ELS
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#INTRO
Hi, I'm going to implement Jon's ELS on my Myford and if that all goes well, then I will do the same on another lathe I have. Matt
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Newbie
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Hi all. Saw Jon's videos several years ago, looked like the best thing since sliced bread,, bought a Nextion and possibly other parts. Idk if I gave up on it because the videos stopped after the discouraging torque test, or I never saw the GitHub or this group. I went the Clough42 (despite the poor interface) route since that was active. I have it partially installed on my 1935 SB 9" Jr. I got a deal on a pair of motors and controllers one step up from Jon's so I am looking at going this route on my g4000 equivalent lathe with the second motor. I have Arduino Megas, and a Due (which would be a nice upgrade). I will probably put a Nextion on the Clough system per Kent's example.Ideally I will get it working with a Mega and attempt to port to a Due. I have no formal machining experience other than making pre-prototype parts for a former company, and making mods for my lathes and RF30 mill.
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Surplus find note
Just came in over the transom: American Science and Surplus has these for $12.50 https://www.sciplus.com/500-ul-precision-pump-67264-p They¡¯re NEMA-17 stepper-driven pumps, 500?l (? ml) , might be useful for automatic oiling if you¡¯re setting up a CNC or ELS system; if nothing else the steppers included retail for $79 from the manufacturer. -- Bruce Johnson "Wherever you go, there you are." B. Banzai, PhD
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Control Knob wiring
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Whilst I order the various components, I thought I would get to grips with the schematic and understand what is involved. From the schematic, what I can't fathom out is the wiring of the control knob. I see there are only 2 logical wires that appear to be connected to the control knob which can't be right. Could someone correct me on this? My control has CLK, DT, SW, + & GND So, should power and earth be connected? Matt
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Newby in the group
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Howdy, I am fairly green when it comes to machining and have a limited shop. I have a Logan 400 lathe and I want to install both a Touch DRO and an ELS control on my lead screw. I ordered my iGauging Accurate Plus scales and need to order the DRO adapter and tablet. Once I'm done with this project, I would like to start the ELS project. I've signed up to John's github sight and have been going through his information. I noticed that his LCD panel is no longer available and I was totally confused on which stepper motor to purchase as well as stepper motor controller. I'm totally new to this sort of work conversion (stepper/encoder/controller, etc.) and my software skills suck. I am hoping that I can go post on this forum to get advice on purchasing substitute items that are no longer available and getting advice on the stepper motor selection, the sheeve ration, the sheeves for the encoder, etc. But, first I need to make the Touch DRO work. I signed up for Yuri's website a couple of days ago but the admin (I think Yuri) hasn't approved my application so I can't post over there yet. I'm really excited to get this controlled lead screw working. Looking forward to communicating with you all. Dave
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Touch DRO - are they still in business?
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I bought a Touch DRO from Yuri 2 days ago and haven't received any order confirmation or any communication. I also tried to sign up for Yuri's Toy's website a number of days ago and the moderator (I think Yuri) hasn't accepted my request yet. Is Yuri still selling Touch DRO's? I have purchased a tablet and a number of things from Amazon. If Yuri is out of biz, I would like to get my money back from PayPal, take back the tablet, and send back all of the other stuff I got from Amazon. UGH...I sure hope that he is in business but may be on vacation or something. Dave
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John, Pictures of the workshop!!
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John, we would love to see pictures of the workshop! You must be settled in now. Hopefully in two or three months I can get back to implementing AtomicELS. Ralph -- Craftsman 101.07403 12x36 Lathe, Clausing 8520 Vertical Mill, Buffalo 4x12 Mini Lathe, Delta 14" Bandsaw. (The 12x36 lathe, 8520 and bandsaw are all powered with a Consew 3/4 hp Brushless DC motor)
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Position Trajectory-Plan Implementation (20210830)
The attached 4-page paper provides the implementation notes promised in the companion "Trajectory Planning by Position (20210830)", published in a separate email. Comments welcome from all. Please cite line number ranges. Joe Gwinn
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Trajectory Planning by Position - Expanded (20210830)
The attached 5.2-page paper expands upon and completely replaces my posting "Trajectory Planning by Position" of 22 August 2021, 3.2 pages. Many things have been simplified and better explained. The key observation is that if one used trajectory plans based of carriage motion as a function of spindle-shaft rotation (as measured with a spindle encoder), the problem of threading simplified mathematically, and the exact details of spindle velocity no longer mattered. The companion white paper, "Position Trajectory-Plan Implementation (20210830)", is published in a separate email. Comments welcome from all. Please cite line number ranges. Joe Gwinn
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