Thanks Richard and John!
I want something that just works. I am 73 years old and don't want to spend years learning how to
turn a taper or cut a thread.
People?have mentioned some shortcomings of John's ELS but they seemed livable.
Of course I still have to figure out mounting the Z and X stepper motors and selecting the motors.
But using a hall effect to get the pulse sure would be easy.
Tracking spindle motion backwards and forward seems like a asset.
And of course I have my mill, I don't know about going CNC but having motorized X, Y and Z?+ Spindle
sure sounds nice.
Ralph
On Wed, Dec 11, 2019 at 4:04 AM John Dammeyer <
johnd@...> wrote:
Thanks for the endorsement Richard.? But I know that there are features from the RELS that don't exist on mine.? I'd really like to learn more about what is different.?
I know that I can't stand pressing buttons to enter a value.? My ELS has a keypad for numeric input.? My 3D printer menu does not.? Arrow keys to select and increment/decrement a value.? As a result I never use it.? Instead? I use Octoprint for dealing with my 3D printer.? My PC has a keyboard with numeric keys.
But as I understand it the Russian ELS tracks spindle motion backwards and forward and the lead screw tracks.? Useless on my South bend which has over 0.025" backlash on the half nut.? ?I'd toast a thread if I move the spindle back and forth with the tool in the thread.? ?So the feature to be able to rotate the headstock for a large part is a useless endeavour on my South Bend.
The lead screw threading pitches are calculated in a spread sheet.? You then change the software.? Then compile and update the firmware in the Arduino.? My ELS lets you enter any ratios that you want.
I'm not sure when all is said and done that the RELS is that much less expensive so I'd love to hear exactly what makes it better.? ?
One thing I've heard is a German ELS has less problems win internal taper boring.? It's something on my list to look at.
John Dammeyer
> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On
> Behalf Of Richard
> Sent: December-11-19 12:17 AM
> To: [email protected]
> Subject: Re: [digitalhobbyist] Step #1 Encoder
>
> Ralph,
> I suggest you forget the RELS but go with John D's system. the single
> pulse is easy to handle.
> Richard
>
> On 10/12/2019 19:09, Ralph Hulslander wrote:
> > Thanks for the replies!!
> >
> > Rex, yes I wondered about slop in the gear.
> >
--
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
