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As a newcomer to this fine group and retired two years I would like to share some of my work so far, I needed a 4th axis for the cnc so designed and made this, it works great I have the option to use either a 4 jaw chuck or a ER32 collet chuck then found I needed a tail stock, (I am known to save items I might need one day)? so I put to use a tail stock from the spares box, work complete. Then found I could use one? on the miller and looked into a stand alone controller I found a Steve Ward that sold components to make a Electronic rotary table Divider made one up as you see again works great. Phill    
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That is a really nice setup. My home-made 4th axis is missing a
tail-stock as to date I have never needed one however it is on the
"TO-DO" list. You did well to find one to suit.
I still use the CNC setup for indexing work but that Electronic Indexer
looks very smart.
Richard
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On 01/11/2019 08:59, phill005 wrote: As a newcomer to this fine group and retired two years I would like to
share some of my work so far, I needed a 4th axis for the cnc so
designed and made this, it works great I have the option to use either
a 4 jaw chuck or a ER32 collet chuck then found I needed a tail stock,
(I am known to save items I might need one day)? so I put to use a
tail stock from the spares box, work complete.
Then found I could use one? on the miller and looked into a stand
alone controller I found a Steve Ward that sold components to make a
Electronic rotary table Divider made one up as you see again works great.
Phill
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Very nice, do you have a link for?
Steve Ward?? Can you get 12.5¡ã? or other odd angles?
Been on my list for a while now. I even found a tailstock.
Ralph
On Fri, Nov 1, 2019 at 5:22 AM Richard < edelec@...> wrote: That is a really nice setup. My home-made 4th axis is missing a
tail-stock as to date I have never needed one however it is on the
"TO-DO" list. You did well to find one to suit.
I still use the CNC setup for indexing work but that Electronic Indexer
looks very smart.
Richard
On 01/11/2019 08:59, phill005 wrote:
> As a newcomer to this fine group and retired two years I would like to
> share some of my work so far, I needed a 4th axis for the cnc so
> designed and made this, it works great I have the option to use either
> a 4 jaw chuck or a ER32 collet chuck then found I needed a tail stock,
> (I am known to save items I might need one day)? so I put to use a
> tail stock from the spares box, work complete.
> Then found I could use one? on the miller and looked into a stand
> alone controller I found a Steve Ward that sold components to make a
> Electronic rotary table Divider made one up as you see again works great.
>
> Phill
>
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Clausing 8520, Craftsman 12x36 Lathe, 4x12 mini lathe, 14" Delta drill press, 40 watt laser, Consew brushless DC motors and a non working 3D printer
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Phill
Excellent work, thanks for sharing.
Can I use one of these photos for the November 2019 sign in screen.?
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John
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Hi Ralph. If phill?s Electronic Step Indexer is anything like mine then; For example if I want 16 complete divisions for 1 revolution? = 22.5 degrees, then I select on the LCD screen menu "divisions" and not "angular". In angular mode I can only get full degrees and not anything that needs splitting a whole degree number into minutes and seconds. For 15 equally spaced divisions/segments, then I have a choice of settings by either selecting 15 divisions or 24 deg angular motions. ?Indexers are not really the same as the standard rotary tables, where you can use the graduated dials for splitting the degrees further to minutes and seconds,? but are similar to rotary tables fitted with indexing plates ( meat mincers). Again normally we are talking divisions/segments when fitting these to a rotary table. But there are?a few odd ball divisions/segments, one being 77 that sticks in my mind, that?cannot be achieved with the standard indexing plates, You buy or make normally? 3 different plates in a complete set, ranging from 21 holes to 59 ?, I could be wrong. Long time since I used them. Most standard machine rotary tables are either 72:1 or 90:1 ratios, but with the ESI firmware it?s possible to set these ratios and? have them available on the LCD screen, if you were to drive a rotary table connected by a belt to the stepper motor Please see the photo worth a thousand words. Stepper pulley 40T, rotary table pulley 40 T, ratio set on the ESI? 90:1 same as the 6" rotary table. Most ESI also have a continual run mode and jog, this is useful for setting up parts. Hope of interest.  ? -- John
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I have added a photo of a 4" circular tilting table showing the typical division/segment indexing plate. This was prior to my use of a ESI (thanks Richard UK) , photo showing making an indexing plate that fits on the? back of the chuck, now redundant after the RELS was fitted to the lathe. Also attached a .xls spreadsheet, may be useful for members with standard indexing plates. The spreadsheet can be altered to suit different ratio circular tables.so as to give you the correct plate selection and number of holes required. Note the use of "soft jaws" holding the part. Hope of interest.  -- John
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Although done about 10 years ago the basics haven't changed.? I grabbed the ELS running my South Bend lathe and connected it to the stepper motor on the rotary table.? I had about 6 parts to that all needed matching holes.? Setting the jog step distance based on rotary table reduction, 8x micro stepper drive etc. any division within the capabilities of the step distance is possible. Once done, I move the ELS back to the South Bend. ?
? I've done this a number of times now.? Only time I made a video. ? John Dammeyer ?
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From: [email protected] [mailto:[email protected]] On Behalf Of John Lindo
Sent: November-02-19 12:16 AM
To: [email protected]
Subject: Re: [digitalhobbyist] Indexer #ESI? I have added a photo of a 4" circular tilting table showing the typical division/segment indexing plate.
This was prior to my use of a ESI (thanks Richard UK) , photo showing making an indexing plate that fits on the?
back of the chuck, now redundant after the RELS was fitted to the lathe.
Also attached a .xls spreadsheet, may be useful for members with standard indexing plates.
The spreadsheet can be altered to suit different ratio circular tables.so as to give you the correct plate selection
and number of holes required.
Note the use of "soft jaws" holding the part.
Hope of interest.
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John
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Hi John, I have other images that show the screen lit up and working I will upload some later you are most welcome to use what you need. To give an insight what it can do I have taken a snip-it out of Steve's instructions hope it helps:
Description.
The controller is intended to drive rotary table, lathe head indexer etc.
Allowing easy, error free division without the use of division plates.
As well as division the controller allows movement by angles (0.01 to 360 degrees),
continuous motion (for machining), positioning (jog mode) and a sophisticated
program mode which allows complex sequences of movements and events to be
executed.
Multiple controllers can be connected together to allow sophisticated machining
operations ¨C e.g. automatic gear cutting, one controller dividing whilst the other
moves the cutter.
Input is via a 16 key keypad whilst a 4 line by 20 column LCD display provides
information in a user friendly format.
?
Features.
? Jog mode. Keys move CW/CCW in 0.01, 0.1, 1.0 and 10.0 degree steps.
? Division mode. Divide a circle into any number of divisions from 1 to 9999
inclusive.
? Degree mode. Any number of degrees from 0.01 to 359.99 in 0.01 degree
steps (note: actual accuracy depends on mechanics).
? Continuous drive. Table is driven continuously CW/CCW at one of the
(selectable) 5 speeds.
? Program mode. Allows complex sequences to be carried out. (Up to 10
programs can be stored)
? Configurable for any worm drive from 1:1 to 9999:1.
? Five speed settings.
? Configurable for all common stepper / driver combinations.
? Five machine profiles.
? Backlash compensation.
Phill
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Phil, where did you get that keypad?
On Sat, Nov 2, 2019 at 4:14 AM phill005 < phill05@...> wrote: The controller has an input cable carrying 12v dc for the controls and LCD and 45v dc for the stepper driver, and a cable out to the stepper motor.
    ?
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Clausing 8520, Craftsman 12x36 Lathe, 4x12 mini lathe, 14" Delta drill press, 40 watt laser, Consew brushless DC motors and a non working 3D printer
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Ralph,,
Drew it out myself and cut on cnc?
Phill
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John, re: "you can use the graduated dials for splitting the degrees further to minutes and seconds, "
How accurately can you manually dial in minutes or seconds on a rotary table? Or even a lathe or mill?
And now I can blame ae Age Virus for not being able? see the dials.
Ralph
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Clausing 8520, Craftsman 12x36 Lathe, 4x12 mini lathe, 14" Delta drill press, 40 watt laser, Consew brushless DC motors and a non working 3D printer
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Nice job on that keypad, have to add that to my list.
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Clausing 8520, Craftsman 12x36 Lathe, 4x12 mini lathe, 14" Delta drill press, 40 watt laser, Consew brushless DC motors and a non working 3D printer
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Phill
I really like the display you have.
Do you have the Arduino firmware you can share.
Part number of the LCD ?
The photos you attached will be OK for the "photo of the month" that will appear on the first page of the forum
Many thanks
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John
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Hi Ralph, see link.
This tilting type was the toolroom industry standard that I used when I was "young" LOL. some 55+ years ago.
Typically used on Jig Borers and Jig Grinders.
Note the accuracy that could be achieved. High precision.
Following on from the handwheel line engraving type, glass scales were introduced with the use of magnifying lenses.
I am in the process of gear cutting on my mill using the CNC DDCSV2.1 controller, very pleased with the results so far.
let you know when the project is complete. Of course my ESI would of done the same job, but this would be manual?
except for the actual indexing, I am getting to old to crank handles LOL, with CNC, just load the program, after setting up and hit the start.
For simple or not so simple CNC X Y Z A axis work, I recommend taking a look at this controller.?
The support from the Chinese manufacturers is well "amazing", this makes a change, the cost of the controllers about $150?
Keep you posted.
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John
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John? Attached? layout? ? ??  All part info can be found on Steve's web page? ? as I am having problems adding PDF to this page.? LCD: The 2004A character LCD module is designed to display letters, numbers, symbols, dot matrix. It can display 4 lines of 20 characters. Support 4-bit and 8-bit data transfer mode. Offers 5x7 matrix + cursor display mode. Providing display data buffer DDRAM, character generator CGROM and CGRAM. CGRAM can be used to store up to eight 5x8 dot matrix character font data graphic own definition. Provides a rich instruction set: clear display, cursor back to origin, display on / off, cursor on / off, display character blink, cursor shift, display shift and so on.Specification:Module size(W x H x T): 98.0 x 60.0 x 14.0mm
Viewing area(W x H): 76.0 x 26.0mm
Character size(W x H): 2.94 x 4.74mm
Dot size:(W x H): 0.54 x 0.54mm
LCD type & color: STN(Blue), FSTN
View angle: 6 O'clock
Display type: positive / negative type
Control IC & package: KS0073 or EQV, COB
Operating temperature: -20¡ãC - +70¡ãC
Storage temperature: -30¡ãC - 80¡ãCPhill
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Phill
I have invited Mr Ward to join us on?this forum.
See what happens.
Thanks for the rapid response, his web page is exiting stuff.
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John
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Thanks for the invite John (and to Phil, nice work there).
The divider was originally made for my own use since my ability to count and use division plates turned out to be expensively poor.
I tidied up the code to make it more "friendly" and published the design on my webpage back in 2005.
Since then I've maintained it, fixing bugs people have discovered and adding a few extra features.
If you don't mind programming your own PIC's and can either make PCB's or are happy to breadboard it then all the files are available on my website so the cost is whatever you can obtain the parts for.
For those that don't want the hassle I offer pre-built units or simply the parts if you're happy to solder them up yourself.
If anyone has any questions feel free to ask.
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Welcome Steve, you should post the URL to your website, often! so we know where to go without having to hunt for it.? I am really interested but don't know which route I might take, or when I can get around to actually doing something. Ralph
On Fri, Nov 8, 2019 at 7:26 AM Steve Ward < steve@...> wrote: Thanks for the invite John (and to Phil, nice work there).
The divider was originally made for my own use since my ability to count and use division plates turned out to be expensively poor.
I tidied up the code to make it more "friendly" and published the design on my webpage back in 2005.
Since then I've maintained it, fixing bugs people have discovered and adding a few extra features.
If you don't mind programming your own PIC's and can either make PCB's or are happy to breadboard it then all the files are available on my website so the cost is whatever you can obtain the parts for.
For those that don't want the hassle I offer pre-built units or simply the parts if you're happy to solder them up yourself.
If anyone has any questions feel free to ask.
--
Clausing 8520, Craftsman 12x36 Lathe, 4x12 mini lathe, 14" Delta drill press, 40 watt laser, Consew brushless DC motors and a non working 3D printer
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" my ability to count and use division plates turned out to be expensively poor."
...:.sounds like we may be related even though I'm located in eastern Canada ...?
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On Nov 8, 2019, at 11:04 AM, Ralph Hulslander <rhulslander@...> wrote:
my ability to count and use division plates turned out to be expensively poor.
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John Lindo
John Lindo