Closed theholyduck closed 5 years ago
actually i did just find something that is affected by that patch. with that patch enabled i cant fire up the spindle at all. with it disabled. i can
i guess this patch isnt strictly speaking necesary. the arduino in the original config does seem to pretty reliably detect a power-cut.
Great that you gave it a go! I think I have spotted the error in the fix and will add that to the next generation of the card. If the original config works for you then I suggest that is kept.
I have found why it didn't work. It was two things, the signal was not inverting correctly with that setup and I had mixed up the GND (for arduino) with GNDS for the regulator. I have updated the schematic and board accordingly. (HRBL-nano).
Since your machine is already correctly throwing an error message when external power is cycled I suggest that you leave it as it is.
This is the tested and working schematic to constantly send an ABORT on loss of exernal power:
As per or previous conversations i decided to try the patch suggested in https://github.com/fellesverkstedet/fabricatable-machines/blob/master/humphrey-large-format-cnc/humphrey_v3/img/electronics/possibel_upgrade.JPG
Everything still seems to work but there is no power-out detection at all. Since the drawing there is of a slightly different revision of the pcb than the one we actually have. i have included this drawing of where i cut and where i patched.![image](https://user-images.githubusercontent.com/13220084/45261962-ca36db00-b40c-11e8-9bc4-c69c974b7b06.png)