[Emc-users] New problem, how best to solve?

2019-02-16 Thread Roland Jollivet
If this is for a touch probe or something of the sort, you only need contact when the RPM < 500? So, have a setup that if RPM is higher than 500, then a little solenoid that tensions the braid (not spring, as you say) is released so there is no tension on it. You want a copper braid around the

Re: [Emc-users] New problem, how best to solve?

2019-02-16 Thread Gene Heskett
On Saturday 16 February 2019 22:46:26 Roland Jollivet wrote: > > > Any other ideas out there? Hopefully something that doesn't > > > involve changing tools to use. > > I don't know what your spindle looks like, but to make an electrical > connection to it, you could use a piece of earth shield.

[Emc-users] New problem, how best to solve?

2019-02-16 Thread Roland Jollivet
> > Any other ideas out there? Hopefully something that doesn't involve > > changing tools to use. > > I don't know what your spindle looks like, but to make an electrical connection to it, you could use a piece of earth shield. The woven, braid type that you find on better quality cables. These

[Emc-users] Doc problem

2019-02-16 Thread Gene Heskett
Greetings all; Because of some odd goings on, like a 4mm end mill being drawn as if it was a 3" face mill, I figured it was about time I added RS274NGC_STARTUP_CODE= to the .ini file. But the docs are wrong, recommending a bare G92 in the string shown when it likely ought to be a G92

Re: [Emc-users] New problem, how best to solve?

2019-02-16 Thread Gene Heskett
On Saturday 16 February 2019 14:28:33 Chris Albertson wrote: > Thinking about this as an electrical engineer, I'd say don't use DC. > DC current is as you say blocked by paint and oil films.Use AC. > I think a low radio frequency. Then the DC insulators would act like > capacitors and

Re: [Emc-users] New problem, how best to solve?

2019-02-16 Thread Chris Albertson
Thinking about this as an electrical engineer, I'd say don't use DC. DC current is as you say blocked by paint and oil films.Use AC. I think a low radio frequency. Then the DC insulators would act like capacitors and pass AC. even while blocking DC. To detect contact use an AC voltage

Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

2019-02-16 Thread Chris Albertson
Notice that now-days many of the "standard" SI units are named for long-dead scientests Volt, Ampere, Watt, Henry, Farad, Joule, Hertz, Newton, Pascal, Celsus, Kelvin, Likely a lot more I can't remember. If you know a little history you can remember them. I think that is why they use proper

Re: [Emc-users] New problem, how best to solve?

2019-02-16 Thread jrmitchellj
I had a similar issue with a Shapeoko router. There was no continuity from the spindle rotor to the rest of the assembly. My solution was to mount a brush above the spindle motor shaft, to make contact on the end of the shaft, then bring that back to the sense input. And, yes, I brought a ground

Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

2019-02-16 Thread jrmitchellj
Most of the pneumatic valves I use have a small actuator (coil) that opens a small air passage to push the thimble within the valve body to the requested position. I recall that they are called "pilot valves". So they use a very small amount of current to do a very big job. I have used Parker

[Emc-users] New problem, how best to solve?

2019-02-16 Thread Gene Heskett
Greetings all; I've just found that because everything it painted before assembly, apparently including the inside of the spindle motor mount, that a ground to the bed frame can be anywhere up to 2 or more thousand ohms to almost anything else on the 6040, and apparently even includes the

Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

2019-02-16 Thread Peter Blodow
Andy, you forgot that blood pressure in Europe is measured in mm of mercury... Peter Am 16.02.2019 um 12:47 schrieb Andy Pugh: On 16 Feb 2019, at 09:21, Erik Christiansen wrote: as lb/in^2 isn't right It can be, if you measure oil consumption in slugs. We use hPa a lot at work. It annoys

Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

2019-02-16 Thread Erik Christiansen
On 16.02.19 11:47, Andy Pugh wrote: > > > > On 16 Feb 2019, at 09:21, Erik Christiansen wrote: > > > > as lb/in^2 isn't right > > It can be, if you measure oil consumption in slugs. True ... but then a slug is lbf s^2 / ft, and I have enough trouble with those venerable units without

Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

2019-02-16 Thread Gene Heskett
On Saturday 16 February 2019 06:47:58 Andy Pugh wrote: > > On 16 Feb 2019, at 09:21, Erik Christiansen > > wrote: > > > > as lb/in^2 isn't right > > It can be, if you measure oil consumption in slugs. > > We use hPa a lot at work. It annoys me. > In fact the same software in various places uses

Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

2019-02-16 Thread Gene Heskett
On Saturday 16 February 2019 04:21:10 Erik Christiansen wrote: > On 15.02.19 20:46, Gene Heskett wrote: > > I found a 12 volt 1/4" version, but what the heck is > > Operating pressure 0.15~0.8MPa supposed to tell me??? Need a > > translation from chinglish please. I haven't a clue what the heck >

Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

2019-02-16 Thread Andy Pugh
> On 16 Feb 2019, at 09:21, Erik Christiansen wrote: > > as lb/in^2 isn't right It can be, if you measure oil consumption in slugs. We use hPa a lot at work. It annoys me. In fact the same software in various places uses hPa, kPa, MPa, bar, psi and inches of mercury!

Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

2019-02-16 Thread Erik Christiansen
On 15.02.19 20:46, Gene Heskett wrote: > I found a 12 volt 1/4" version, but what the heck is > Operating pressure 0.15~0.8MPa supposed to tell me??? Need a translation > from chinglish please. I haven't a clue what the heck 0.8MPa means. OK, it's been answered for that number, but for catching