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Also here is what Freecad puts before each axis call:

N15060 G0 X0 Y0 F70
N15061 M06 (Set too top of surface Z0.75)
N15062 G92 Z0.75 (Pocket surface top)

Don't understand the first line. F70 should only apply to G1?
Why the G92. This changes the origin position rather than just the offset from the present origin???

Looking at the code for the hardware PWM, a few changes could be made to not stop the timer on a duty cycle change. A quick job for the weekend.

@Murphy, are you happy to test?

Murphy wrote:

@ Thayloreing Looks like you have no Comms with the board. Which could be why you can't upload the config to the board. Look back in the posts there is steps there to change the IP address for the board to 10.10.10.10.

@scotta, have you tested the v5 boards with CSS ?. I'm having issues only in CSS mode. Signal keeps dropping when there is speed changes during CSS. Voltage newly drops to zero, once speed changes stop it goes to the required speed. I'm thinking it could be the 0-10v chips on the EC500's.

Hi, no sorry have not tested CSS mode. The 0-10v chip is a PWM to analog chip and the Remora code uses the hardware quad timer. With CSS the spindle speed is constantly changing. In the code when the duty cycle changes, the timer is stopped to allow the timer configuration to be updated. This may take long enough for the PWM to analog chip to drop to 0v.

The software PWM module updates the duty cycle on the fly. Running the software PWM module in the base thread may get the PWM frequency in the right ball park.

In my testing of the spindle analogue, I must admit that I never put a scope on the output. Just a multi meter, and that would not have reacted quick enough to see the drop to 0v.

it does adjust the output voltage a bit, but not the scale i dont think.

so here are some numbers when its working

mesa - 5.2v
pwm module - 12.1v in
m3 s12000 (min) - 2.34v in (2.53 unplugged) 4.92v out
m3 s24000 (max) 4.65/5.07(u) 8.62 out

if i step up the input voltage to 14.2v i get 9.77@24k and 5.24@12k

if i adjust the pot on it i can get 10v but only at 14v. i max out at 8.65 @12v. but when i get 10v, im at 5.78 on the low end which i suppose wouldnt be all that bad with an air cooled spindle vs going too slow

"Then comes the dawn"!
Now I understand the difference between Axis' P0 and the others. Big help.

I just want to change the Z offset for the axis I am in. It seems that if I make a G54 offset change it affects the entire program. Moves the entire image.

The difficulty I am having is moving from the end of the 4th position of the first subroutine back to the start (first) position of the second subroutine (o103) and repositioning the Z axis.

Freecad may have added some unnecessary moves and offsets.
For example I don't understand G0 X0 Y0 F70.
Also don't understand why it adds G92 offsets at the beginning of the next set of subroutine axis.

Getting there. Greatly appreciate your help.

Does that potentiometer on the PWM --> Analog module adjust the scale?

that is what i thought. it should just be a proportional voltage coming out, but there must be a small load on it because my pw
voltage drops about 0.5v when i plug it in and tye only way i can get 10v or close is to increase the input voltage to the module to 14v.

these are the new ones i have coming.
a.co/d/5rSxmMy
which is similar to tye board i have now.

i could just use rs485 to control the spindle, but this is a big machine and at least for now i use the same computer to control 3 machines and i dont want to have 2 cables running across the floor. i trip over one often enough, so i need to try and get this pwm running

@ Thayloreing Looks like you have no Comms with the board. Which could be why you can't upload the config to the board. Look back in the posts there is steps there to change the IP address for the board to 10.10.10.10.

@scotta, have you tested the v5 boards with CSS ?. I'm having issues only in CSS mode. Signal keeps dropping when there is speed changes during CSS. Voltage newly drops to zero, once speed changes stop it goes to the required speed. I'm thinking it could be the 0-10v chips on the EC500's.

Actually, the PWM --> analog circuit normally should not
care what the PWM input signal level is as long as it's enough
to drive the input circuit. That is, it should work identically
with a 4V signal as a 5V signal.

thanks tom for the words of wisdom as always. i have some new modules coming this afternoon and i will give those a go. ill also dig around and see if i have another 5v din psu floating around. i thought i had a 2a one somewhere here

PCW wrote:

250 mA is really marginal...

so what would you recommend?  am i under powering it? 

oddwick wrote:

the 7i96 is powered with a dedicated 5v 0.55a psu. i adjusted the pot to 5.42v(i dare not go any more)

That is really, really not a good idea, 5V supply should be 5V+-5%, so 4.75V-5.25V.
Maybe Mesa can handle it, but i would not even try that without confirming first.

250 mA is really marginal...
 

If you stop a subroutine (ie use the stop execution buttion) you are free to call another subroutine.

P0 just selects whatever WCS is currently active. If you want to change a specific offset system you would use P1 ... P9.

Yes axis gui's P0 issues G10 L20 P0 ...

If you need to change the Z offset for all operations regardless of WCS you would probably want to change the tool-offset instead.

Hi,

I'm trying to retrieve several numbered parameters, but with a minimum of hal widgets. I know I should have tried to build a custom widget, but I never did it and thought it would be easier this way. I changed my point of view (using one hal widget per parameter), but I would like to know how this should have been written :

In postgui.hal I have :
The code is running, but don't do what I want. It seems lcdnumber.value() is not updated fast enough to have paramEdit_MD_D updated with the right text, both paramEdit_MG_D and paramEdit_MD_D are receiving the same text. The " while not STATUS.is_interp_idle():" does nothing.

Thanks