Re: [Emc-users] output sink of the 667 hall effect?

2016-09-12 Thread Gregg Eshelman
There's stranded Ethernet cable. For that UV curable stuff, get a 9 LED UV flashlight, cheap on eBay. Works much better than the twee little single LED that comes with the stuff. Reminds me I need to goop up the USB cord for my phone. From: Gene Heskett To:

Re: [Emc-users] output sink of the 667 hall effect?

2016-09-12 Thread Gene Heskett
On Monday 12 September 2016 23:08:53 Gregg Eshelman wrote: > Why not use twisted pair ethernet cable? > Because its single strand solid and supposedly fragile? The ribbon is 7 strand & able to stand more flexing. And I found, at Wallies of all places tonight, some glue pens that dispense uv

Re: [Emc-users] output sink of the 667 hall effect?

2016-09-12 Thread Gene Heskett
On Monday 12 September 2016 22:14:38 Jon Elson wrote: > On 09/12/2016 12:43 PM, Gene Heskett wrote: > > Greetings all; > > > > I see by the spec sheet that the allegro 667 gear sensor can sink up > > to 25 mills. > > > > But with 3 such sensors on the end of a long cable back to the > > breakout

Re: [Emc-users] output sink of the 667 hall effect?

2016-09-12 Thread Gregg Eshelman
Why not use twisted pair ethernet cable? From: Gene Heskett To: emc-users@lists.sourceforge.net Sent: Monday, September 12, 2016 11:43 AM Subject: [Emc-users] output sink of the 667 hall effect? Greetings all; I see by the spec sheet that the allegro 667 gear

Re: [Emc-users] output sink of the 667 hall effect?

2016-09-12 Thread Jon Elson
On 09/12/2016 12:43 PM, Gene Heskett wrote: > Greetings all; > > I see by the spec sheet that the allegro 667 gear sensor can sink up to > 25 mills. > > But with 3 such sensors on the end of a long cable back to the breakout > board, probably 7 foot by the time I get it routed, I am concerned with

Re: [Emc-users] output sink of the 667 hall effect?

2016-09-12 Thread Chris Albertson
On Mon, Sep 12, 2016 at 3:32 PM, Gene Heskett wrote: > On Monday 12 September 2016 14:44:33 Chris Albertson wrote: > >> I think the RC filter idea would work OK. Gear teach are after all a >> low frequency signal, so a filter made with a cap size for a corner >> freq of

Re: [Emc-users] output sink of the 667 hall effect?

2016-09-12 Thread Gene Heskett
On Monday 12 September 2016 14:44:33 Chris Albertson wrote: > I think the RC filter idea would work OK. Gear teach are after all a > low frequency signal, so a filter made with a cap size for a corner > freq of (say) 100KHz will keep RF out of the line. > I was thinking more in terms of a rail

Re: [Emc-users] Plasma Torch Height Control

2016-09-12 Thread Marius Liebenberg
I have one concern about the use of serial interface for THC. The serial components are notoriously slow and sometimes are very far behind the real-time events. With THC you need very fast and in time movements. Unless there is an interface to the Mesa serial channels, I would be cautious to

Re: [Emc-users] Plasma Torch Height Control

2016-09-12 Thread Klemen Živkovič
I can see some plasma machines have serial interface also ( http://forum.robotsinarchitecture.org/index.php?action=dlattach;topic=232.0;attach=335). Also found this thread - https://forum.linuxcnc.org/forum/27-driver-boards/21445-rs-485-with-7i76. Is serial plasma control over "plasma/serial"

Re: [Emc-users] output sink of the 667 hall effect?

2016-09-12 Thread Chris Albertson
I think the RC filter idea would work OK. Gear teach are after all a low frequency signal, so a filter made with a cap size for a corner freq of (say) 100KHz will keep RF out of the line. That said the "correct" way to do this is with a pair of driver/receiver chips. If you use RS422 (that is

Re: [Emc-users] output sink of the 667 hall effect?

2016-09-12 Thread sam sokolik
I used a 1k ohm. but.. We ran that right into a CUI line driver.. (I don't think you can get them anymore) then into a mesa differential encoder counter... http://www.digikey.com/product-search/en?keywords=102-1787-ND here is our mounting. You can see the index hole (the index sensor isn't

[Emc-users] output sink of the 667 hall effect?

2016-09-12 Thread Gene Heskett
Greetings all; I see by the spec sheet that the allegro 667 gear sensor can sink up to 25 mills. But with 3 such sensors on the end of a long cable back to the breakout board, probably 7 foot by the time I get it routed, I am concerned with the potential for crosstalk noise in spite of

Re: [Emc-users] Plasma Torch Height Control

2016-09-12 Thread John Thornton
I'd bet it does both and it may even have a output for ark ok... JT On 9/12/2016 8:53 AM, Alexander Brock wrote: > On 09/11/2016 04:22 PM, John Thornton wrote: >> Does is have connections to measure the tip voltage? > I'm not exactly sure, it has a connection named "CNC" and it might be > either

Re: [Emc-users] IMTS Chicago

2016-09-12 Thread Kirk Wallace
On 09/12/2016 10:04 AM, Stuart Stevenson wrote: > We are planning to be there early in the morning so we can spend the day > walking through checking STUFF. Thanks for rubbing it in.:) -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/

Re: [Emc-users] IMTS Chicago

2016-09-12 Thread Stuart Stevenson
We are planning to be there early in the morning so we can spend the day walking through checking STUFF. On Sep 12, 2016 10:54 AM, "John Kasunich" wrote: > Let me know when you expect to be doing the HGR run. > Not sure if I can get off work, but I'll try. > (I live 20

Re: [Emc-users] touch probe

2016-09-12 Thread Gene Heskett
On Monday 12 September 2016 10:42:38 andy pugh wrote: > On 12 September 2016 at 15:27, Gene Heskett wrote: > > > Feed-hold can be masked and unmasked with the G53 command, feed > > > inhibit can't. > > > > I see. Possibly a huge difference. Generally, my use of g53 is to

Re: [Emc-users] IMTS Chicago

2016-09-12 Thread John Kasunich
Let me know when you expect to be doing the HGR run. Not sure if I can get off work, but I'll try. (I live 20 minutes from HGR.) On Mon, Sep 12, 2016, at 10:12 AM, Stuart Stevenson wrote: > Standing here ready to go in and wondering if anyone on the list is here > today. > Am planning an HGR run

Re: [Emc-users] touch probe

2016-09-12 Thread andy pugh
On 12 September 2016 at 15:27, Gene Heskett wrote: > > Feed-hold can be masked and unmasked with the G53 command, feed > > inhibit can't. > > I see. Possibly a huge difference. Generally, my use of g53 is to reset > the user coordinates back to sane values Sorry, my

Re: [Emc-users] touch probe

2016-09-12 Thread Gene Heskett
On Monday 12 September 2016 08:25:37 andy pugh wrote: > On 11 September 2016 at 16:08, Gene Heskett wrote: > > > > motion.feed-inhibit > > ... > > > > motion.feed-hold > > ... > > > "what is the difference in how they work?" > > Feed-hold can be masked and unmasked with

[Emc-users] IMTS Chicago

2016-09-12 Thread Stuart Stevenson
Standing here ready to go in and wondering if anyone on the list is here today. Am planning an HGR run tomorrow. Kim K. is here with me. Would like to meet up with any LinuxCNC users here. Thanks --

Re: [Emc-users] Plasma Torch Height Control

2016-09-12 Thread Alexander Brock
On 09/11/2016 04:22 PM, John Thornton wrote: > Does is have connections to measure the tip voltage? I'm not exactly sure, it has a connection named "CNC" and it might be either an input for starting / stopping the cutting or an output for measuring tip voltage. Best Regards, Alexander

Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-12 Thread Sarah Armstrong
for info , anyone used or seen this http://ostan.cz/IR_protocol_analyzer/ i'm just about to start digging on my renshaw' probes , a bit more On 8 September 2016 at 17:07, Jon Elson wrote: > On 09/08/2016 09:56 AM, Florian Rist wrote: > > Hi Jon > > > >> Yes, I

Re: [Emc-users] touch probe

2016-09-12 Thread andy pugh
On 11 September 2016 at 16:08, Gene Heskett wrote: > > > motion.feed-inhibit > ... > > motion.feed-hold ... > "what is the difference in how they work?" Feed-hold can be masked and unmasked with the G53 command, feed inhibit can't. -- atp "A motorcycle is a bicycle