Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread John Dammeyer
> > I�m using PWM with a direct signal and enable.My drive accepts 0-10V, so I > created a little board that converts the PWN to a 0-10V analog signal and > isolates all the signals. > > N. Christopher Perry That's basically what I've drawn out too but I found the op-amp couldn't pull to

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread John Dammeyer
That part is perfect. Didn't know there were opto's like that out there that could have a VCC of 10V. Thanks John > -Original Message- > From: andy pugh [mailto:bodge...@gmail.com] > Sent: October-05-19 11:24 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Spindle

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread N. Christopher Perry
>> >>> If you are controlling the speed of your spindle with LinuxCNC instead of >>> just ON/OFF/DIR, how are you doing this? >>> >>> Step/Dir? >>> >>> 0V-10V PWM? I’m using PWM with a direct signal and enable.My drive accepts 0-10V, so I created a little board that converts the PWN to a

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread Gene Heskett
On Saturday 05 October 2019 12:56:25 John Dammeyer wrote: > If you are controlling the speed of your spindle with LinuxCNC instead > of just ON/OFF/DIR, how are you doing this? > > Step/Dir? > > 0V-10V PWM? Check, delivered to the spindle circuitry of a mesa-7i76D, thence to an ebay vfd on my

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread Jon Elson
On 10/05/2019 11:56 AM, John Dammeyer wrote: If you are controlling the speed of your spindle with LinuxCNC instead of just ON/OFF/DIR, how are you doing this? Well, on my Bridgeport mill, I use a spare channel of my analog DAC to deliver 0-10 V. On my minimill, I have the DC motor run

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread andy pugh
On Sat, 5 Oct 2019 at 12:03, John Dammeyer wrote: > > How are you generating the 0-10V? Here is one way: https://photos.app.goo.gl/dR3dNvnnyuj31yQ37 In fact my mill might be using that. I would need to look :-) It's something that you can "dead-bug" and have in the middle of a cable in

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread Sam Sokolik
0-10v + dir (pwm) Mesa. Smart serial 0-10v + dir (stepgen - f/v) cheap eBay Bob. On Sat, Oct 5, 2019, 1:03 PM John Dammeyer wrote: > > From: Sam Sokolik [mailto:samco...@gmail.com] > > 0-10v + dir (pwm) > > Smart serial > > 0-10v + dir (stepgen - f/v) > > How are you generating the 0-10V? > > >

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread John Dammeyer
> From: Sam Sokolik [mailto:samco...@gmail.com] > 0-10v + dir (pwm) > Smart serial > 0-10v + dir (stepgen - f/v) How are you generating the 0-10V? > > > On Sat, Oct 5, 2019, 11:59 AM John Dammeyer > wrote: > > > If you are controlling the speed of your spindle with LinuxCNC instead of > >

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread andy pugh
On Sat, 5 Oct 2019 at 10:59, John Dammeyer wrote: > If you are controlling the speed of your spindle with LinuxCNC instead of > just ON/OFF/DIR, how are you doing this? My lathe uses RS485 and the hy_vfd hal component. My mill uses analogue 0-10V from a Mesa card. The other way round would

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread Sam Sokolik
0-10v + dir (pwm) Smart serial 0-10v + dir (stepgen - f/v) On Sat, Oct 5, 2019, 11:59 AM John Dammeyer wrote: > If you are controlling the speed of your spindle with LinuxCNC instead of > just ON/OFF/DIR, how are you doing this? > > Step/Dir? > > 0V-10V PWM? > > ModBus? > If ModBus RS232 or

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread Thaddeus Waldner
My spindle is driven by an Automation Direct GS2 drive. I am running it via Modbus over RS232. It seems to be working fine. I don’t have a spindle encoder installed. Modbus components in LinuxCNC are not real-time. I don’t know what that implies. Thaddeus Waldner Newdale School Elkton, SD

[Emc-users] Spindle Speed Control.

2019-10-05 Thread John Dammeyer
If you are controlling the speed of your spindle with LinuxCNC instead of just ON/OFF/DIR, how are you doing this? Step/Dir? 0V-10V PWM? ModBus? If ModBus RS232 or RS485? Some other way? Thanks John "ELS! Nothing else works as well for your Lathe" Automation Artisans Inc. www