Richard. I agree, not been a problem yet. A simple 3:1 ratio, 30T on the spindle, 10 T on the encoder, Charlie has followed the same principles but yet? to try out. SDI/Sp US side, or Bearings are us UK side to purchase the 2.5 mm pulleys and belts. I will help with belt lengths if necessary and the basic fixing of the encoder to the machine, Charlie used these guides I sent via email,? and is well ahead of the game. Well done. Main motor drive belt to the layshaft and proximity to encoder belt is close, ask Charlie, LOL,? We have had some intimate discussions about it. LOL. For all forum members I am currently running version ELS ver6p.and from advise (R) , every change (addition normally) to the firmware I change the? .ino file name. remeber you need to add in a new directory first then copy the .ino under that. That means if I have a "Woopsy" during a new amendment,? I can always reload to the previous version of what was working. been there done that. All changes are done through Notebook?++? again recommended by Richard, I find it much easier than the arduino menus, and also all changes are noted and I comment out the old info. Richard I am sure will go through this protocol as and when needed, and also the Russian spread sheets that do all the update calculations for you. Enough for today. ?Thanks
On Tue, 20 Aug 2019 at 12:13, Richard < edelec@...> wrote: Charlie,
I have never yet done tests or calculations to see how the existing
software is affected by high rpm or a lower resolution.
Therefore leaving the software numbers as is for the moment as 1, they
work and 2, are not difficult to achieve, so why change.
Richard
On 20/08/2019 00:19, CLevinski wrote:
> Hi, Bruce,
>
>? ? ?Wouldn¡¯t that be fixable by a larger gear on the encoder, reducing
>? ? ?the ratio? Or would it require redoing the mount?
>
> Yes, that would reduce the maximum frequency, but at the cost of
> resolution.? As I am not sure how critical the resolution is to the
> application, I would tend to preserve the resolution.? If a lower
> resolution works with the rest of the ELS system, then the larger
> gear, as you suggest, would be a perfectly fine solution.--
> Regards,
> Charlie
> New Jersey, USA
>
--
John
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Re: Gear reduction 3D printed bracket.
#3D
#GR
Numbers are 2092 and 2095.
Good on LMS. a brilliant bunch of guys,? I printed in the past a 32 T and looks good ( involute wise) .See photo, LMS versus 3D print. A bit grubby, well so am I. LOL Never tried it yet, as what is currently running using LMS gears that I purchased 5 years works,is still running,? but for example if it?s a Sunday? morning,and you need to replace a GR gear, well just print it.???It?s what we have the machines for. But I just purchased more gears from Chris Woods, magic, but I don?t like the US postal charges, Gr 1111111111, every one is getting fat cept Momma Cass. I am in the process of putting together 5 more Real Bull GR units and I am supposed to be retired, or is it retarded, DON'T answer. Procrastination and we are all guilty of, is the thief of time? Enjoy the day, each second is precious.
John
On Tue, 20 Aug 2019 at 10:50, Fast Eddie < epinnell@...> wrote: Hi John!
Do you have the LMS part number for the gears used in the Real Bull GR? I can generate STL files for them and maybe you can print them out for a trial.
--
John
|
Charlie,
I have never yet done tests or calculations to see how the existing
software is affected by high rpm or a lower resolution.
Therefore leaving the software numbers as is for the moment as 1, they
work and 2, are not difficult to achieve, so why change.
Richard
toggle quoted message
Show quoted text
On 20/08/2019 00:19, CLevinski wrote: Hi, Bruce,
Wouldn¡¯t that be fixable by a larger gear on the encoder, reducing
the ratio? Or would it require redoing the mount?
Yes, that would reduce the maximum frequency, but at the cost of
resolution.? As I am not sure how critical the resolution is to the
application, I would tend to preserve the resolution.? If a lower
resolution works with the rest of the ELS system, then the larger
gear, as you suggest, would be a perfectly fine solution.--
Regards,
Charlie
New Jersey, USA
|
Re: Gear reduction 3D printed bracket.
#3D
#GR
Hi John!
Do you have the LMS part number for the gears used in the Real Bull GR? I can generate STL files for them and maybe you can print them out for a trial.
|
Re: 3 D printer filament.
#3D
That cube was an exercise in writing gcode for his CNC class. It was machined from aluminum billet and is one piece. It is quite striking when viewed from the proper angle. He gave me the drawing and I modeled it thinking I 'd like to print it using some of the new satin PLA filaments, but my printer doesn't do bridging very well and this would take a lot of support.
The problem with STL files is that they are not readily modifiable. Trying to work with an STL file beyond just printing can be a frustrating experience. For me, STEP and IGES files are to be preferred over STL in anything other than printing.?
Hey, I'm glad I'm able to contribute!?
|
STL of the 48T pulley with 28mm bore if anyone wants to have a go at printing.
|
Re: 3 D printer filament.
#3D
Eddie.
Iges and STL files loaded up perfect.
So we know file transfer between forum members may not be a future issue.
Thanks for your work on this.
--
John
|
Re: 3 D printer filament.
#3D
Eddie Even better when i attach a file Duh?  -- John
|
Re: 3 D printer filament.
#3D
Eddie. I made a cube (actually 4 cubes) the smallest not visible? Made on the mill with a boring head. in phosphor bronze. I 3D printed on also, but lost it. Duh. Quite easy to do, draw up the cubes, print the smallest first, print the next size up,? just a fun thing to print for the kids I will try and download the files you sent. Attachments in this io group so far so good. John
On Tue, 20 Aug 2019 at 08:42, Fast Eddie < epinnell@...> wrote: Well, being a 2D drawing, a DXF file is probably more universal, and a parametric model can easily be created from a drawing. But some things just don't have "the look" as a 2D drawing.
Here's IGES and STL files of a model of an Infinity Cube that I was going to print for a co-worker who made this in a CNC class (I never got around to printing it). See if they open for you.
What is an Infinity Cube? This guy.
--
John
|
Current price:?
A 6A32M016DF0603 $13.08
A 6A32M048NF0606 $13.41
I downloaded the CAD files in STEP and IGES format (attached). With the proper dimensions, an STL file can be generated for 3D printing.
[Seems like I'm having a problem with the attachments...hope they come through ok...]
|
Re: ELS improvement
#RELS
Sorry meant z axis not y
Sent from my Samsung Galaxy smartphone.
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Show quoted text
-------- Original message -------- From: Ralph Hulslander <rhulslander@...> Date: 20/08/2019 02:04 (GMT+00:00) Subject: Re: [digitalhobbyist] ELS improvement
Y axis, are you milling? A lathe only has Z and X unless you use a milling attachment then you have Y.
Ralph On Mon, Aug 19, 2019 at 7:07 PM les higgins via Groups.Io <leshiggins= [email protected]> wrote: I had a single y axis ELS system with a tachometer and a hall effect magnet for the encoder. The system worked alright to a degree but was getting skipping issues. So with a great help from Richard Edwards I am going with the modified Russian ELS greatly improved and in English. Initially I was going to adopt the y axis system only but on reflection there not a lot of more work to do the? crossfeed x axis system as well. Almost finished the mechanical side using a? 600 p/r encoder geared 1 to 1 and a nema 23 fixed to the tailstock end 1 to 1 and a nema 23? for the crosslide again 1 to 1 only? the latter is a short version about 55mm long and less torque. Waiting for some more parts and meantime hopefully modifying the arduino sketch for my leadscrew? 2mm pitch and crosslide thread pitch 1mm? and the 600 p/r encoder. t
The spec states? Pulses:600p/r(Single-phase pulses P/r, Two phase 4 frequency doubling to 2400 pulse . Not sure about this should I set the encoder to 2400 in the sketch?
-- 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
|
Re: ELS improvement
#RELS
Thank you for your message. I got a little confused with the rotary encoder settings and bought a 600 pr one but the spec states "two phase raising to 2400 pr but Richard said I will need a 3 to 1 to bring it to 1800 so will have to get some pulleys and belt as I have geared mine to 1 to 1 Meanwhile,very interesting group
Sent from my Samsung Galaxy smartphone.
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Show quoted text
-------- Original message -------- From: John Lindo <bechetboat@...> Date: 20/08/2019 05:59 (GMT+00:00) Subject: Re: [digitalhobbyist] ELS improvement
Les I read from previous posts you were only interested in the manual screw cutting module.Z axis. and now you have decided to power up the X axis. Well done. With Richards guidance it will be really beneficial to do this add on. The 2 axis allows for automatic threading and facing, plus cutting internal and external tapers. Through the English firmware I have quite a few angles set in the taper module, originally called Cones, all the standard MT tapers and? up to 45 degrees, which makes a nice job on large corner chamfers when turning. Best wishes -- John
|
Re: 3 D printer filament.
#3D
Well, being a 2D drawing, a DXF file is probably more universal, and a parametric model can easily be created from a drawing. But some things just don't have "the look" as a 2D drawing. Here's IGES and STL files of a model of an Infinity Cube that I was going to print for a co-worker who made this in a CNC class (I never got around to printing it). See if they open for you. What is an Infinity Cube? This guy. 
|
Re: ELS improvement
#RELS
Given 600 lpr and a 3:1 drive from spindle set then (if using the 74LS86
as per spec)
#define ENC_LINE_PER_REV???? 1800 // Number of lines of the encoder per
1 revolution of the spindle
Richard
toggle quoted message
Show quoted text
On 20/08/2019 00:05, les higgins via Groups.Io wrote:
I had a single y axis ELS system with a tachometer and a hall effect
magnet for the encoder. The system worked alright to a degree but was
getting skipping issues. So with a great help from Richard Edwards I
am going with the modified Russian ELS greatly improved and in
English. Initially I was going to adopt the y axis system only but on
reflection there not a lot of more work to do the? crossfeed x axis
system as well. Almost finished the mechanical side using a? 600 p/r
encoder geared 1 to 1 and a nema 23 fixed to the tailstock end 1 to 1
and a nema 23? for the crosslide again 1 to 1 only? the latter is a
short version about 55mm long and less torque. Waiting for some more
parts and meantime hopefully modifying the arduino sketch for my
leadscrew? 2mm pitch and crosslide thread pitch 1mm? and the 600 p/r
encoder. t
The spec states? Pulses:600p/r(Single-phase pulses P/r, Two phase 4
frequency doubling to 2400 pulse . */Not sure about this should I set
the encoder to 2400 in the sketch?/*
|
Re: 3 D printer filament.
#3D
Eddie.
Thanks good info.
STEP files will not work for me, my old CAD system needs a convertor and then enter in a code.
Can you try DXF IGES or better still STL files if it?s for printing.
Thanks
--
John
|
Re: ELS improvement
#RELS
Les
I read from previous posts you were only interested in the manual screw cutting module.Z axis.
and now you have decided to power up the X axis.
Well done.
With Richards guidance it will be really beneficial to do this add on.
The 2 axis allows for automatic threading and facing, plus cutting internal and external tapers.
Through the English firmware I have quite a few angles set in the taper module, originally called Cones, all the standard MT tapers and?
up to 45 degrees, which makes a nice job on large corner chamfers when turning.
Best wishes
--
John
|
This looks to be one of those things that would be sooooo tempting to 3D print out of nylon, ABS, or PETG...
|
Re: ELS improvement
#RELS
Y axis, are you milling? A lathe only has Z and X unless you use a milling attachment then you have Y.
Ralph
On Mon, Aug 19, 2019 at 7:07 PM les higgins via Groups.Io <leshiggins= [email protected]> wrote: I had a single y axis ELS system with a tachometer and a hall effect magnet for the encoder. The system worked alright to a degree but was getting skipping issues. So with a great help from Richard Edwards I am going with the modified Russian ELS greatly improved and in English. Initially I was going to adopt the y axis system only but on reflection there not a lot of more work to do the? crossfeed x axis system as well. Almost finished the mechanical side using a? 600 p/r encoder geared 1 to 1 and a nema 23 fixed to the tailstock end 1 to 1 and a nema 23? for the crosslide again 1 to 1 only? the latter is a short version about 55mm long and less torque. Waiting for some more parts and meantime hopefully modifying the arduino sketch for my leadscrew? 2mm pitch and crosslide thread pitch 1mm? and the 600 p/r encoder. t
The spec states? Pulses:600p/r(Single-phase pulses P/r, Two phase 4 frequency doubling to 2400 pulse . Not sure about this should I set the encoder to 2400 in the sketch?
--
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
|
On Mon, Aug 19, 2019 at 02:45 PM, Fast Eddie wrote:
Do you intend to make this exclusive to all members, some members, or the public in general? What are your thoughts?
Hi, Fast Eddie, The Files section is currently set to allow all members to download from it. ? -- Regards, Charlie New Jersey, USA
|
Hi, Ralph,
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On Mon, Aug 19, 2019 at 10:04 AM, Ralph Hulslander wrote:
Charlie, how did you get the timing belt for the encoder on the spindle?
I bought the spindle pulley with a much smaller bore than desired, then bored it out, holding it in soft jaws.? I first made a stepped gauge to let me know when I was getting close to the right diameter.? To position the spindle pulley, remove the original spindle bearing spacer, and turn two spacers, one for the bearing side of the pulley, and the other for the opposite side.? The outer diameter of these spacers should be the same as the tops of the pulleys.? This causes the spacers themselves to act as flanges to keep the belt on the spindle pulley.? The total length of the spacers plus the pulley width has to be the same as the original pulley so that the pulser disk for the tachometer still fits in between the "legs" of the RPM sensor.? Hopefully the pictures below will make it clear.       -- Regards, Charlie New Jersey, USA
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John Lindo
