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Re: Current CNC options for Lathes with encoders?

 

I doubt that it matters.
Imho.

The important thing is that the pulse is crisp, clean, has a fast edge.
And no variable fuzziness over speed.

On 21/09/2017 16:23, Lester Caine lester@... [CAD_CAM_EDM_DRO] wrote:
On 21/09/17 13:59, Hannu Venermo gcode.fi@... [CAD_CAM_EDM_DRO] wrote:
If you already have an encoder for index pulse, or tracking, you are
all
set.
'Problem' is it's only 90 or so slots ... think both machines are
different, but around 1 degree step size ...
--
-hanermo (cnc designs)
Re: Current CNC options for Lathes with encoders?

Lester Caine
 

On 21/09/17 13:59, Hannu Venermo gcode.fi@... [CAD_CAM_EDM_DRO] wrote:
If you already have an encoder for index pulse, or tracking, you are all
set.
'Problem' is it's only 90 or so slots ... think both machines are
different, but around 1 degree step size ...

On 21/09/2017 14:53, Lester Caine lester@... [CAD_CAM_EDM_DRO]
wrote:
They seem to recommend a resolution of 2000-10000 cycles per rev so yes,
if you have a low resolution encoder you might be better off changing
that to a "better" encoder. You could always ask them if your particular
encoder resolution is workable or not.
The encoder is build into the back of the Orac and Compact8 so not
something one would want to change.

You just said it was for lathes, I'm not used to general purpose lathes
having more than 4 axis+spindle.
I'd prefer to switch to something new rather than simply adding yet
another software package to have to learn ...

Not trying to convince you, just a bit surprised about your arguments
against it :-)
I'd prefer just the card and a lower customs charge importing it as I
have 24V UK supplies sitting on the shelf ;)

--
Lester Caine - G8HFL
-----------------------------
Contact -
L.S.Caine Electronic Services -
EnquirySolve -
Model Engineers Digital Workshop -
Rainbow Digital Media -

Re: Current CNC options for Lathes with encoders?

Lester Caine
 

On 21/09/17 12:37, Hannu Venermo gcode.fi@... [CAD_CAM_EDM_DRO] wrote:
Yes You are missing something.

Suggest the pokeys.
Suggest the mach4 - even though I have not yet moved my lathe to it.
But I don't like Mach4 - already ruled that out!
I'd stick with Mach3 but it's not a long term option although I'm more
than happy to use it for another 10 years on the W2k computer that is
running my mill.

And very much suggest rigging an optical encoder (cheap, timing belts +
2 bearings ok) or ac spindle servo drive for the lathe if funds permit.
The whole point is that the Orac and Compact8 don't need any hardware
mods ... just some software that will work with there current hardware

Pokeys is looking like the best option but perhaps with Auggie rather
than Mach ...

--
Lester Caine - G8HFL
-----------------------------
Contact -
L.S.Caine Electronic Services -
EnquirySolve -
Model Engineers Digital Workshop -
Rainbow Digital Media -

Re: Current CNC options for Lathes with encoders?

 

If you already have an encoder for index pulse, or tracking, you are all set.

On 21/09/2017 14:53, Lester Caine lester@... [CAD_CAM_EDM_DRO] wrote:
They seem to recommend a resolution of 2000-10000 cycles per rev so yes,
if you have a low resolution encoder you might be better off changing
that to a "better" encoder. You could always ask them if your particular
encoder resolution is workable or not.
The encoder is build into the back of the Orac and Compact8 so not
something one would want to change.

You just said it was for lathes, I'm not used to general purpose lathes
having more than 4 axis+spindle.
I'd prefer to switch to something new rather than simply adding yet
another software package to have to learn ...

Not trying to convince you, just a bit surprised about your arguments
against it :-)
I'd prefer just the card and a lower customs charge importing it as I
have 24V UK supplies sitting on the shelf ;)
--
-hanermo (cnc designs)
Re: Current CNC options for Lathes with encoders?

Lester Caine
 

On 21/09/17 12:40, 'Henrik Olsson' henrik@...
[CAD_CAM_EDM_DRO] wrote:
They seem to recommend a resolution of 2000-10000 cycles per rev so yes,
if you have a low resolution encoder you might be better off changing
that to a "better" encoder. You could always ask them if your particular
encoder resolution is workable or not.
The encoder is build into the back of the Orac and Compact8 so not
something one would want to change.

You just said it was for lathes, I'm not used to general purpose lathes
having more than 4 axis+spindle.
I'd prefer to switch to something new rather than simply adding yet
another software package to have to learn ...

Not trying to convince you, just a bit surprised about your arguments
against it :-)
I'd prefer just the card and a lower customs charge importing it as I
have 24V UK supplies sitting on the shelf ;)

--
Lester Caine - G8HFL
-----------------------------
Contact -
L.S.Caine Electronic Services -
EnquirySolve -
Model Engineers Digital Workshop -
Rainbow Digital Media -

Re: Current CNC options for Lathes with encoders?

 

They seem to recommend a resolution of 2000-10000 cycles per rev so yes, if you have a low resolution encoder you might be better off changing that to a "better" encoder. You could always ask them if your particular encoder resolution is workable or not.

You just said it was for lathes, I'm not used to general purpose?lathes having more than 4 axis+spindle.

110V US kit?
Power supply voltage to Acorn is 24VDC. The kit ships with one with such a power supply, it doesn't specifically say but I'd guess it's universal input voltage like 85 to 240.?It does come with a US power cord which you'd need to replace though :-)

Not trying to convince you, just a bit surprised about your arguments against it :-)

/Henrik.



21 september 2017 12:30:49 +02:00, skrev Lester Caine lester@... [CAD_CAM_EDM_DRO] :

?

On 21/09/17 11:05, 'Henrik Olsson' henrik@...
[CAD_CAM_EDM_DRO] wrote:
> Have you looked at the Acorn board from Centroid?
>
> http://www.centroidcnc.com//centroid_diy/centroid_diy_cnc.html
>
> $265 with the free (and limited) version of the software, add $99 for
> the next step up. Softwre and hardware from a single source so no
> blaiming game (hopefully) and seems like an overall nice piece of kit
> but I have no personal experience with Centroid or their products.
> Someone on the list mentioned it while back.

I had looked at that one previously, but not sure about using it with
the low res encoder on the lathes. That and the 110V US kit is not
helpful in the UK ;) Also adding 5th axis is a problem ... just shipped
a 5 channel USBCNC system so ideally need more than 4 channels.

Looks like there are a couple of non Mach3 options to use with the
Pokeys boards which I'm looking at currently.

--
Lester Caine - G8HFL
-----------------------------
Contact - http://lsces.co.uk/wiki/?page=contact
L.S.Caine Electronic Services - http://lsces.co.uk
EnquirySolve - http://enquirysolve.com/
Model Engineers Digital Workshop - http://medw.co.uk
Rainbow Digital Media - http://rainbowdigitalmedia.co.uk
Re: Current CNC options for Lathes with encoders?

 

Yes You are missing something.

Suggest the pokeys.
Suggest the mach4 - even though I have not yet moved my lathe to it.

And very much suggest rigging an optical encoder (cheap, timing belts + 2 bearings ok) or ac spindle servo drive for the lathe if funds permit.

The only hw I personally know of that tracks servos well is Cslabs stuff. 6 axis, + spindle.
4 Mhz.
The pokeys will do so to 125 kHz - and this is often/mostly good enough. 4 axis on mach3.
Iirc more axis on mach4 with pokeys.

I think some of the best other controllers can read optical-encoder pulse streams, perhaps full encoder data.
cspxxx maybe..
Machmotion maybe..

Biggest/best choices I made;
using AC 2.5 kW servo on the lathe spindle at 1:3 via very strong belt drive HTD8-30,
using Csmio-IP-S controller.

Got:
90 Nm torque 0-1000 rpm; unbelievably good. I never expected this.
1/30.000 C axis positioning. Very good, but too soft for C axis drive with y.
Plan to try a planetary at 1:5 or so.

Real MPG. Outstanding. Pokeys does as good.
Nothing else is close. Better / = than HAAS.

The Pokeys stuff gets You 80%+ of the features for 1/3 the price.

Both pokeys and cslabs get you real-time single-ms feedholds, stops, probing, sso knobs, fro knobs, REAL mpgs etc.
Just like the 100k machines.

Re: servo.
A servo spindle gets unbelievable torque, css, surface speed, stability.
And does usually *not* break stuff in a crash.

It reacts so fast, that the metal parts are bent and tensioned, but not broken, before the servo faults.

On 21/09/2017 11:30, Lester Caine lester@... [CAD_CAM_EDM_DRO] wrote:
The Pokeys boards
look nice price wise, but I'm not sold on Mach4 having been using Mach3
on the mill for years. Does any other software take advantage of the
Pokeys hardware? Then we get back to LinuxCNC which I keep downloading
but never getting much further along than that despite having a couple
of other interfaces that are getting good responses about.

Nothing stands out as the ideal solution for a lathe setup like Mach3 is
for the mill, or am I missing something?
--
-hanermo (cnc designs)
Re: Current CNC options for Lathes with encoders?

Lester Caine
 

On 21/09/17 11:05, 'Henrik Olsson' henrik@...
[CAD_CAM_EDM_DRO] wrote:
Have you looked at the Acorn board from Centroid?



$265 with the free (and limited) version of the software, add $99 for
the next step up. Softwre and hardware from a single source so no
blaiming game (hopefully) and seems like an overall nice piece of kit
but I have no personal experience with Centroid or their products.
Someone on the list mentioned it while back.
I had looked at that one previously, but not sure about using it with
the low res encoder on the lathes. That and the 110V US kit is not
helpful in the UK ;) Also adding 5th axis is a problem ... just shipped
a 5 channel USBCNC system so ideally need more than 4 channels.

Looks like there are a couple of non Mach3 options to use with the
Pokeys boards which I'm looking at currently.

--
Lester Caine - G8HFL
-----------------------------
Contact -
L.S.Caine Electronic Services -
EnquirySolve -
Model Engineers Digital Workshop -
Rainbow Digital Media -

Re: Current CNC options for Lathes with encoders?

 

Have you looked at the Acorn board from Centroid?



$265 with the free (and limited) version of the software, add $99 for the next step up. Softwre and hardware from a single source so no blaiming game (hopefully)?and seems like an overall nice piece of kit but I have no personal experience with Centroid or their products. Someone on the list mentioned it while back.

/Henrik.

21 september 2017 11:30:50 +02:00, skrev Lester Caine lester@... [CAD_CAM_EDM_DRO] :

?

Not sure where is the bast place to ask as most of the lists I frequent
for CNC are specific to a single option. I've got an Orac and a Compact8
Lathe both of which are running nicely from the Mach3 Mill computer, but
as yet nothing is hooked up to the encoder and index pulse signals.

I was going down the path of Eding USBCNC, but the current interface
boards are a lot more expensive than the original USB boards. PlanetCNC
offers a similar board to the earlier Eding one and prices look good
even adding the extra bit for the software licence. The Pokeys boards
look nice price wise, but I'm not sold on Mach4 having been using Mach3
on the mill for years. Does any other software take advantage of the
Pokeys hardware? Then we get back to LinuxCNC which I keep downloading
but never getting much further along than that despite having a couple
of other interfaces that are getting good responses about.

Nothing stands out as the ideal solution for a lathe setup like Mach3 is
for the mill, or am I missing something?

--
Lester Caine - G8HFL
-----------------------------
Contact - http://lsces.co.uk/wiki/?page=contact
L.S.Caine Electronic Services - http://lsces.co.uk
EnquirySolve - http://enquirysolve.com/
Model Engineers Digital Workshop - http://medw.co.uk
Rainbow Digital Media - http://rainbowdigitalmedia.co.uk
Current CNC options for Lathes with encoders?

Lester Caine
 

Not sure where is the bast place to ask as most of the lists I frequent
for CNC are specific to a single option. I've got an Orac and a Compact8
Lathe both of which are running nicely from the Mach3 Mill computer, but
as yet nothing is hooked up to the encoder and index pulse signals.

I was going down the path of Eding USBCNC, but the current interface
boards are a lot more expensive than the original USB boards. PlanetCNC
offers a similar board to the earlier Eding one and prices look good
even adding the extra bit for the software licence. The Pokeys boards
look nice price wise, but I'm not sold on Mach4 having been using Mach3
on the mill for years. Does any other software take advantage of the
Pokeys hardware? Then we get back to LinuxCNC which I keep downloading
but never getting much further along than that despite having a couple
of other interfaces that are getting good responses about.

Nothing stands out as the ideal solution for a lathe setup like Mach3 is
for the mill, or am I missing something?

--
Lester Caine - G8HFL
-----------------------------
Contact -
L.S.Caine Electronic Services -
EnquirySolve -
Model Engineers Digital Workshop -
Rainbow Digital Media -

Qcad to CAD2Lathe to Mach3 turn

 

Hi to all.

Checkout my new video at:

Cheers

Bob Adams


?
Re: Solderless DB9 connector breakout board for G540 steppers motors

 

It might pay to keep a close eye on vibration. I'm minded
of a 12 year old 1972 CB350-K Honda motorcycle I once had.
It had quick connectors everywhere, that were allways
inconveneniently vibrating loose, until I finally hard
soldered every damn one of them.

Bill

On Fri, 14 Jul 2017, Peter Homann groups@... [CAD_CAM_EDM_DRO] wrote:

Hi All,

Just a quick announcement of the GC-12, a new solderless DB9 breakout board
that provides an easy way to connect a stepper motor to the G540 without
soldering.



The GC-12 contains a 3.5mm pitch terminal block along with a trim
potentiometer to set the stepper motor current. The GC-12 comes with a DB-9
Backshell that includes a cable strain relief.

Cheers,

Peter

--
-----------------------------------------------------------------------------
Web :
email : sales@...
Phone : +61 421 601 665

---
This email has been checked for viruses by Avast antivirus software.




------------------------------------
Posted by: Peter Homann <groups@...>
------------------------------------

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I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list.

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Yahoo Groups Links
Solderless DB9 connector breakout board for G540 steppers motors

 

Hi All,

Just a quick announcement of the GC-12, a new solderless DB9 breakout board that provides an easy way to connect a stepper motor to the G540 without soldering.



The GC-12 contains a 3.5mm pitch terminal block along with a trim potentiometer to set the stepper motor current. The GC-12 comes with a DB-9 Backshell that includes a cable strain relief.

Cheers,

Peter

--
-----------------------------------------------------------------------------
Web :
email : sales@...
Phone : +61 421 601 665
Digital readout scale mounting hardware for Milling machine quill axis

 

Hello,


I looking for someone in LA or Orange county California to help design and manufacturer?a set of Z axis/Quill brackets for a linear scale.


I will be offering them as part of my 3 axis dro systems and as replacements for broken quill scales that we receive for repair.


I will buying the bracket kits from you so this will be a paying job.


You can contact me off list if you have questions.


Thanks,

Tim

LMSC
Re: Shapes Plus

 

Hi to All!
I use Estlcam to create the G-code for my machine controller. I also use my Shapes Plus program to create the DXF file to import into Estlcam.
I recently seen a YouTube video from Estlcam, showing a Work holder Vacuum Pad. I thought this would be a good project to give a try and design it in Shapes Plus.

This My Vacuum Pad YouTube Video
https://youtu.be/ZjVrL3OKOtM

Anti Backlash video
https://youtu.be/trBW1IbpUfI

Estlcam is free to use except it will pause sometimes.
Shape Plus is still being developed.

Cheers
Bob Adams
Re: I am learning but still so lost.

 

Charlie,

I'm on the left coast about an hour north of San Francisco so a visit is out. I imagine that the original Chinese control board would work with LinuxCNC. It would be a matter of figuring out which pin does what. There are probably step and direction pins for each axis, maybe spindle control and home/limit switches. What's the URL of the youtube video you found?

Going to a usb controller like a SmoothStepper would probably mean you would have to use Mach3/4 instead of LinuxCNC.

Drew


On 5/29/17 2:31 PM, charlie79329@... [CAD_CAM_EDM_DRO] wrote:


Drew

The connection between controller and computer is parallel or preinter cable, same going from control box to machine. I got a photocopied booklet english mixed with chinese. Very difficult to follow. Sorry, I live in Texas near Lubbock. I would be up for a phone call , if you would be interested.

Thanks for your reply

Charlie Brown

--
Drew Rogge
drew@...

Phone: 8934OOO629OO4829631OOOOOOO
Re: I am learning but still so lost.

 

开云体育

On 05/29/2017 04:23 PM, charlie79329@... [CAD_CAM_EDM_DRO] wrote:
Ron

I am trying to run linuxcnc but have not been able to get the correct settings.? Do you recommend adifferent software?? Thanks for your reply.? Would you care to talk on the phone if I called?

If you want to know about LinuxCNC, get on their web site at linuxcnc.org and browse the forums.? There is a LOT of info there, and lots of people willing to help.? Also, they have a Wiki with helpful info, and of course the documentation.

Jon
Re: I am learning but still so lost.

 

Charlie

Take a look at GRBL 0.9 or the new version 1.1. Gcode via USB to an Arduino Mega or for less stepper channels an Arduino Uno. from laptop running Universal Gcode Sender for version 0.9 or UGSPlatform for version 1.1
<>
<>

For DXFs of drawings to Gcode
<>

I have just completed a CNC hot wire foam cutter using GRBL version 0.9 on a UNO and have total control of the wire current using the spindle speed control function.

Any questions, just ask.

Malcolm

I don't suffer from insanity I enjoy it!
Mene, mene, tekel, upharsin
The writing is on the wall.
Ha-ktovet al ha-kir

--------------------------------------------

On Sat, 5/27/17, Charlie Brown N5TYI charlie79329@... [CAD_CAM_EDM_DRO] <CAD_CAM_EDM_DRO@...> wrote:

Subject: [CAD_CAM_EDM_DRO] Re: I am learning but still so lost.
To: CAD_CAM_EDM_DRO@...
Date: Saturday, May 27, 2017, 2:55 AM























I am
overwhelmed by the response.??? I just
ordered 3 stepper motor drivers as I had none extra.? I
am trying to get something working and then tackle the
Chinese machine.? i was also supersized that not as
many were not familiar with LINUXCNC.? I think I got a
handle4 on it now.The Chinese machine is connected by serial
port.? The one I am building is connected by USB.?
I found a utube film about my Chinese
4
Axis USB CNC Controller Board.? I think maybe I got
something glimmering in the sunset of knowledge that might
help me.? Give me a few days until my driver boards for
my motors and let me hook it togather.? Then maybe I
can get the software to work for me.? Just curious as
to what you guys are using.? I am located in the
Panhandle, about 10 miles East of Lubbock,Texas.? I
have not been able to Russell up much help around
here.? I assure you I definetly need it.? If
pictures or screen shots are helpful, I will furnish them on
request.? Once again Guys thanks and I look forward to
more information.
Charlie


?Charlie
Brown N5TYI
?International Health Service
Volunteer

Proud
user of Holland Kendall Ministry? Eye Glass
Inventory/Reader Programs









Virus-free. www.avg.com
Re: I am learning but still so lost.

 

开云体育

USB may be your problem. I don't think LinuxCNC will work with it. All the USB drivers I have seen are for Mach3. You may find more help on the LinuxCNC forum:



On 5/26/2017 9:55 PM, Charlie Brown N5TYI charlie79329@... [CAD_CAM_EDM_DRO] wrote:
?
I am overwhelmed by the response.??? I just ordered 3 stepper motor drivers as I had none extra.? I am trying to get something working and then tackle the Chinese machine.? i was also supersized that not as many were not familiar with LINUXCNC.? I think I got a handle4 on it now.
The Chinese machine is connected by serial port.? The one I am building is connected by USB.? I found a utube film about my Chinese
4 Axis USB CNC Controller Board.? I think maybe I got something glimmering in the sunset of knowledge that might help me.? Give me a few days until my driver boards for my motors and let me hook it togather.? Then maybe I can get the software to work for me.? Just curious as to what you guys are using.? I am located in the Panhandle, about 10 miles East of Lubbock,Texas.? I have not been able to Russell up much help around here.? I assure you I definetly need it.? If pictures or screen shots are helpful, I will furnish them on request.? Once again Guys thanks and I look forward to more information.

Charlie


?Charlie Brown N5TYI
?International Health Service Volunteer

Proud user of Holland Kendall Ministry? Eye Glass Inventory/Reader Programs





Virus-free. 

-- 


Ron Thompson 
On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA

Think, Draw, Print. 3D printers ROCK!



 My hobby pages are here:


Visit the castinghobby FAQ:

Re: I am learning but still so lost.

 

开云体育

Hi Charlie:

?

I have never used LinuxCNC, and though I am sure I could figure things out if I was physically there with the machine, I think I would not be of much use on the phone. I’m in Eastern PA, so I think a visit is out of the question right now…

?

Andy Wander

From: CAD_CAM_EDM_DRO@... [mailto:CAD_CAM_EDM_DRO@...]
Sent: Monday, May 29, 2017 5:28 PM
To: CAD_CAM_EDM_DRO@...
Subject: RE: [CAD_CAM_EDM_DRO] I am learning but still so lost.

?

?

Andy

My machine is a chinese 30/60 , I think.? The motots will lock up when I plug in the parrallel cable.? I am useing linuxcnc and have bnot gotten the correcet setting put into the software.? Woulod you be avaliable for a phone call maybe I could explain better.? Thanks for answering back.

Charlie Brown
Idalou,Texas
161 - 180 of 99862