Re: [Emc-users] 7i90 not listed in pnc

On Wednesday 23 May 2018 23:48:23 jeremy youngs wrote: > Halmeter has blanked fields and inoperable buttons, so I cannot select > pins. Halscope shows no active threads. So I cannot continue as the > Hal tutorial shows. > nothread.jpg >

Re: [Emc-users] 7i90 not listed in pnc

On 24 May 2018 at 02:33, jeremy youngs wrote: > Pin 1 and 3 are my a and b from the 7i42. > I have verified encoder is operational and 4.56 volts at pins 1&2 on 7i42 > so all seems good there. I'm pretty sure this is a syntax problem . Input ? > hal.jpg >

Re: [Emc-users] Water or Air cooled spindles

It sounds to me like a car radiator from a junked car would make a perfect cooling tank and heat radiator. Ken On Wed, May 23, 2018 at 8:01 AM, Dave Cole wrote: > RV antifreeze works well for things like this. I have been using it for > years in my bandsaw coolant

Re: [Emc-users] Water or Air cooled spindles

On Thursday 24 May 2018 08:28:33 Kenneth Lerman wrote: > It sounds to me like a car radiator from a junked car would make a > perfect cooling tank and heat radiator. > > Ken > Thats a good idea, or one could get a heater core out of the junk yard, with a fan blowing thru it for even more space

Re: [Emc-users] Water or Air cooled spindles

Great idea... in fact I think I will use that idea to cool my TIG welding torch!  :-)    A radiator from a compact car should be cheap at the junk yard. It might even come with an electric fan if I ask for it! Dave On 5/24/2018 8:28 AM, Kenneth Lerman wrote: It sounds to me like a car

Re: [Emc-users] 7i90 not listed in pnc

On Thu, May 24, 2018, 01:36 Gene Heskett wrote: > > > Sounds like no threads running. > > Does a "halrun" execute,(see the doc pdf, about page 585) and give you > a "halcmd" prompt? Or alternatively, does linuxcnc actually run? Yes,yes The > > first time it will ask you

Re: [Emc-users] 7i90 not listed in pnc

On Thursday 24 May 2018 16:52:17 jeremy youngs wrote: > Ok, I got this all loaded , got some help from Peter and am able to > drop these pins to ground and watch encoder raw count show pin > activity. So , great everything works, very Happy. The bad I > think I reverse biased this led and

Re: [Emc-users] 7i90 not listed in pnc

Ok, I got this all loaded , got some help from Peter and am able to drop these pins to ground and watch encoder raw count show pin activity. So , great everything works, very Happy. The bad I think I reverse biased this led and popped it. I have another encoder and motor to try to read counts

Re: [Emc-users] 7i90 not listed in pnc

Sorry, autocorrect, > Heds 8950 encoder > The 7i42TA's are that. Limiting the current to a value below the failure > of the gates in the fpga on the 7i90HD. IF you are feeding them 5 > volts. > > What diode are you referring to? > The led that drives the optical encoder. It does not pass a

Re: [Emc-users] 7i90 not listed in pnc

> > > > HEDS 8950? > > That seems to be an alignment tool, not an encoder... > > The optical encoder says 8950 I found a datasheet that said obsolete in > Nov 2011 > > > > 8950.jpg This is what I got. Also

[Emc-users] Home switches.

Quick mini survey. If you have a knee mill, where have you mounted your home switches? I understand it doesn't matter because the machine coordinate system is only used to establish a fixed reference. For the rest of the time we use various world coordinate systems with the G54... So the

Re: [Emc-users] 7i90 not listed in pnc

On Thu, May 24, 2018, 22:32 Ralph Stirling wrote: > I suspect that module was manufactured in the 50th week of 1989, as 8950 > looks like a date code. I don't see a normal part number, unless it is the > OPB number. > I would suspect a Julian date code of day of

Re: [Emc-users] Home switches.

Home switches should go to the positive side , z up, y towards you and x on the right. Most 4 axis I have used were mounted on the negative end ( left ) ( mazak) but the carousel was not in the path of the 4th axis, the fadals ( which homed to the center of the table , as well as the daewoo) were

Re: [Emc-users] 7i90 not listed in pnc

On 05/24/2018 07:57 PM, Gene Heskett wrote: On Thursday 24 May 2018 16:52:17 jeremy youngs wrote: Ok, I got this all loaded , got some help from Peter and am able to drop these pins to ground and watch encoder raw count show pin activity. So , great everything works, very Happy. The bad I

Re: [Emc-users] 7i90 not listed in pnc

I suspect that module was manufactured in the 50th week of 1989, as 8950 looks like a date code. I don't see a normal part number, unless it is the OPB number. -- Ralph On May 24, 2018 7:09 PM, jeremy youngs wrote: > > > > HEDS 8950? > > That seems to be an alignment

Re: [Emc-users] 7i90 not listed in pnc

On 24 May 2018 at 21:52, jeremy youngs wrote: > The real question, this is a heads 8950 and it shows eol as Nov > 2011 and I cannot locate a source for a replacement. HEDS 8950? That seems to be an alignment tool, not an encoder... -- atp "A motorcycle is a bicycle with

Re: [Emc-users] 7i90 not listed in pnc

On Thursday 24 May 2018 21:58:31 jeremy youngs wrote: > Sorry, autocorrect, > > Heds 8950 encoder Its not an Omron then? I have used one before, in a project for the tv station, never gave a hint of trouble. But I know nothing about a HED 8950. I'll see if I can find something about it on the

Re: [Emc-users] 7i90 not listed in pnc

On Thu, May 24, 2018, 23:33 Ralph Stirling wrote: > Electronics component date codes are always two digit year > followed by two digit week. > Learn something every day > > I did not do anything intentional about trimming my reply, > just top posted. My mail

Re: [Emc-users] Home switches.

On Thursday 24 May 2018 23:04:06 John Dammeyer wrote: > Quick mini survey. If you have a knee mill, where have you mounted > your home switches? > I understand it doesn't matter because the machine coordinate system > is only used to establish a fixed reference. For the rest of the time > we

Re: [Emc-users] 7i90 not listed in pnc

On Friday 25 May 2018 01:04:36 jeremy youngs wrote: > On Thu, May 24, 2018, 23:45 Gene Heskett wrote: > > On Thursday 24 May 2018 21:58:31 jeremy youngs wrote: > > > Sorry, autocorrect, > > > > > > Heds 8950 encoder > > > > Its not an Omron then? I have used one before, in

Re: [Emc-users] 7i90 not listed in pnc

Electronics component date codes are always two digit year followed by two digit week. I did not do anything intentional about trimming my reply, just top posted. My mail reader (outlook web access) doesn't do the ">" quoting. Hope you can find a replacement for the whole encoder, because that

Re: [Emc-users] 7i90 not listed in pnc

On Thu, May 24, 2018, 23:45 Gene Heskett wrote: > On Thursday 24 May 2018 21:58:31 jeremy youngs wrote: > > > Sorry, autocorrect, > > > > Heds 8950 encoder > > Its not an Omron then? I have used one before, in a project for the tv > station, never gave a hint of trouble.