Re: Vacuum grounding
Posted: Wed Jun 08, 2016 6:04 pm
Sharkcutup:
The think to keep in mind about the static is that the charge build-up is between the spindle/bit and wherever the chip lands. The electrical + and - charges are separated by the cutting action. So, even if there's no connection to the controller, to get rid of the static you have to connect where the metal part of where those chips land, to the case of the spindle. That, and only that, will allow the charges to dissipate. If there's no "easy" path for it, then it will eventually go through whatever electrical bits are easier, or the air over time, or your finger
So regardless of your system setup, the zap-your-finger charge separation still happens between the same to items: the spindle and the bed.
You don't have to believe me; you can prove it to yourself by connecting a wire between the two and making a cut that would normally produce that static. The only thing it would disrupt is the touch-off plate action, so just connect that wire after you get your Z-height(s).
I never understand why people refuse to believe basic electrical principals that have been known since the time of the Greek and Roman empires. Honestly....
Regards,
Thom
The think to keep in mind about the static is that the charge build-up is between the spindle/bit and wherever the chip lands. The electrical + and - charges are separated by the cutting action. So, even if there's no connection to the controller, to get rid of the static you have to connect where the metal part of where those chips land, to the case of the spindle. That, and only that, will allow the charges to dissipate. If there's no "easy" path for it, then it will eventually go through whatever electrical bits are easier, or the air over time, or your finger
So regardless of your system setup, the zap-your-finger charge separation still happens between the same to items: the spindle and the bed.
You don't have to believe me; you can prove it to yourself by connecting a wire between the two and making a cut that would normally produce that static. The only thing it would disrupt is the touch-off plate action, so just connect that wire after you get your Z-height(s).
I never understand why people refuse to believe basic electrical principals that have been known since the time of the Greek and Roman empires. Honestly....
Regards,
Thom