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Oh I see !
The pulses are fixed when the pot is at a low value (around 100) but are scrolling when I raise it.

https://www.cnczone.com/forums/attachment.php?attachmentid=392332&stc=1

I am afraid I don't know how to do that.

No, my scope doesn't support such high voltage.
The signal shown previously is the Arduino's input.

The TRIAC is driven by a MOC3022.
By the way, if I look at its input (pin 1) with an oscilloscope, the signal remains the same whatever the pot position.

No, it doesn't work.
Whatever the pot position, the spindle turns at its maximum, except when the pot is set to 0.
analogValue goes from 139 to 920.

Here is the test code :



analogValue =...

Forgot the image:

You will notice I have bypassed the 33k resistors to test with a lower voltage after a transformer. But the behaviour is striclty the same with 230V.
...

analogValue varies according to the pot position between 0 and 1002.

I have also displayed "Output" just after the myPID.Compute(); command.

I noticed it goes from 0 to 10000 in a couple of...

Hi,
I tried with the original version found on Github (vspindel_v2) but I can't get it work...
The zero detection works fine, but whatever the potentiometer position, the same signal is always sent...

Yes David

With 0.8mm end-mill :
12000 RPM
Feed rate: 200 mm/min
Plunge rate: 30 mm/min
Depth: 1.5 mm

Thanks for your info.
I tried with the following parameters, and it works pretty well:

12000 RPM
Feed rate: 200 mm/min
Plunge rate: 30 mm/min
Depth: 1.5 mm

Hello,
I have bought those cheap chinese 0.8mm carbide end mills for drilling and cutting PCB.
...

Thank you!

Hello,
The CAM software I use (Cut2D) does not allow to mill a hole from the center, it always start from the inner diameter.
I would like to mill a bigger hole around an existing one so that the...

Hi,
Just a quick feedback.

100 pF added in position A : no change
100 nF added in position B : problem solved !!

I can now use my CNC and have some fresh food/drinks available thanks to 6...

I'll do that!
Thank you for the advice BitHead

Hello,
I am driving my CNC with an Arduino and GRBL software.
It works great but I have a noise issue with the limit switches. Each times the fridge turns off or on, it generates a spark which...

Thanks for the link KOC62.
I'll give a try with this schematics and version 5.1 grabbed here..

Hello,
Sorry for awaking such an old post but I'd like to build a 230 VAC motor controller with a standalone ATmega328.

I have read the 20 pages and honestly... I am lost !
Is there finally any...