Re: [Emc-users] looking for advice --> trick to sell an extratoolsetter

On 3/16/24 16:12, Chris Albertson wrote: Silicon carbide is classified as a “semi-conductor”.It is used to make some heavy duty rectifier diodes and maybe other stuff Oxide-coated tools likely would conduct because the oxide wears off really fast, OK, I just tried a black oxide tool and I

Re: [Emc-users] looking for advice --> trick to sell an extra toolsetter

Then the black stuff have been worn off the cutting sharp edge the coating is not especially useful anymore? Nicklas Karlsson lör 2024-03-16 klockan 12:28 -0700 skrev Chris Albertson: > Silicon carbide is classified as a “semi-conductor”.    It is used to make > some heavy duty rectifier diode

Re: [Emc-users] looking for advice --> trick to sell an extra toolsetter

Silicon carbide is classified as a “semi-conductor”.It is used to make some heavy duty rectifier diodes and maybe other stuff Oxide-coated tools likely would conduct because the oxide wears off really fast, OK, I just tried a black oxide tool and I see ZERO conductivity. But then I test

Re: [Emc-users] looking for advice --> trick to sell an extratoolsetter

On 3/16/24 07:07, Stuart Stevenson wrote: Gene, This link shows they are available. They ARE a bit pricey though. https://www.kennametal.com/us/en/products/fam.kencut-ht-eade-radiused-4-flutes-necked-plain-shank-metric.13329.html?pdpQuery=&sort=relevance&pageSize=16&category= I'll nominate

Re: [Emc-users] looking for advice --> trick to sell an extratoolsetter

On 3/16/24 06:11, andy pugh wrote: On Sat, 16 Mar 2024 at 09:30, gene heskett wrote: Interesting that no one has named a non-conducting tool. That is something I've not yet seen. There are ceramic inserts: https://tungaloy.com/uk/product/milling/ceramicspeed-mill/ Which I'd like to learn a

Re: [Emc-users] looking for advice --> trick to sell an extra toolsetter

Gene, This link shows they are available. They ARE a bit pricey though. https://www.kennametal.com/us/en/products/fam.kencut-ht-eade-radiused-4-flutes-necked-plain-shank-metric.13329.html?pdpQuery=&sort=relevance&pageSize=16&category= I had a couple of these in my desk at MPM. I think I have

Re: [Emc-users] looking for advice --> trick to sell an extra toolsetter

On Sat, 16 Mar 2024 at 09:30, gene heskett wrote: Interesting that no one has named a non-conducting tool. That is > something I've not yet seen. > > There are ceramic inserts: https://tungaloy.com/uk/product/milling/ceramicspeed-mill/ -- atp "A motorcycle is a bicycle with a pandemonium attach

Re: [Emc-users] looking for advice --> trick to sell an extra toolsetter

On 3/15/24 14:05, Nicklas SB Karlsson wrote: ... Is the coating on the bit electrically conductive?  I know some oxides don’t conduct electricity. Then sales person first sell you a tool setter that work only condictive mills and drills. Second time he come back and sell you one these non cod

Re: [Emc-users] looking for advice

On 3/15/24 11:33, Chris Albertson wrote: If you are using it as a probe, why not put the drill in the chuck backward, then you have a precision rod, not a drill. Then I'd have to stop and turn it, loosing my z calibration. It is an r8 an r8 spindle, no built in stops. Spinning seems like a

Re: [Emc-users] looking for advice --> trick to sell an extra tool setter

> ... > Is the coating on the bit electrically conductive?  I know some oxides don’t > conduct electricity. Then sales person first sell you a tool setter that work only condictive mills and drills. Second time he come back and sell you one these non coductive bits. Then of course you need to bu

Re: [Emc-users] looking for advice

If you are using it as a probe, why not put the drill in the chuck backward, then you have a precision rod, not a drill. Spinning seems like an interesting idea, moving fraction is always less than static friction. You would likely need to spin a 3mm rod fast enough so that the tangential spee

[Emc-users] looking for advice

I have obtained a 10 pack of uxcel 3mm mills. Look more like a rasp than a normal spiral mill. 2 edges on the plunge face though. They will be used as both the probe signal generator to find the 3mm holes for bolts in a 9mm wide linear bearing rail. That means they will have maybe .2mm total

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

just a update guys. I forgot to add it to my drawing but I have a big isolator switch of course on the doors of the machine and the x axis servo has a ground wire. I forgot to add them to the drawing and Gene mentioned it. I will also switch the breaker on the shed board off so I have two forms

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

> I'll offer my recently purchased 6040 mill as prime evidence of paint > pretty much destroying my ability to ground anything. And to complicate > things even a Q&D TLO measure is prevented by ceramic bearings in the > spindle which are an insulator. ... Ceramic bearings might be there to pre

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

On Sunday 29 December 2019 13:32:09 John Dammeyer wrote: > I use > > The standard symbols on my drawings to represent what a ground is. > The nomenclature is so varied I believe the first decision should be > how to describe what is what. > > For me the EARTH symbol is the green (Green/Yellow) wi

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

I use The standard symbols on my drawings to represent what a ground is. The nomenclature is so varied I believe the first decision should be how to describe what is what. For me the EARTH symbol is the green (Green/Yellow) wire that goes back to the circuit breaker panel and from there i

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

On Sun, 29 Dec 2019, andrew beck wrote: Date: Sun, 29 Dec 2019 23:19:20 +1300 From: andrew beck Reply-To: "Enhanced Machine Controller (EMC)" To: "Enhanced Machine Controller (EMC)" Subject: Re: [Emc-users] looking for advice on best wiring practices and grounding

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

On Sunday 29 December 2019 05:37:36 andrew beck wrote: > Hey everyone > > So just getting to the bottom of these emails and thanks so much for > all the replies. > > There is much food for thought. > > If you missed it up in the emails here is the current plan for wiring > the control panel. > > y

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

On Sunday 29 December 2019 05:19:20 andrew beck wrote: > Hey Andy > > I am just going through all the replies now. > > So what I think happened is I put like 300 volts possibly through the > servo motor. Not just 24 volts. as I had a cheap chinese power > supply that was floating and not tied to

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

Hey everyone So just getting to the bottom of these emails and thanks so much for all the replies. There is much food for thought. If you missed it up in the emails here is the current plan for wiring the control panel. yuhai servo drive manual

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

Hey Gene thanks for the reply. I think I follow most of what you said there. And my neutral and ground will only be tied back at the shed main electrical box definitely. I think the main problem I have is how the 24 volt powersupplies should be wired and connected to frame ground. I have sent s

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

Hey Andy I am just going through all the replies now. So what I think happened is I put like 300 volts possibly through the servo motor. Not just 24 volts. as I had a cheap chinese power supply that was floating and not tied to ground. It was a big spark that jumped to the steel and it blew th

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

No. I am talking about voltage drops in cables used to power devices. It might also be AC impedance is rather high at frequencies used for communication and device use power in smaller or larger bursts. Problem is there is voltage drop in cable used to power DC and/or AC but no or to be exact n

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

> On Thu, 26 Dec 2019 at 19:03, Chris Albertson > wrote: > > > All the rules try to do the same thing, connect nuetral to ground ONLY > > at the building service entrance > > Off-topic, but that isn't the only way to do it. > https://en.wikipedia.org/wiki/Earthing_system > Is an interesting rea

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

On Thu, 26 Dec 2019 at 19:03, Chris Albertson wrote: > All the rules try to do the same thing, connect nuetral to ground ONLY > at the building service entrance Off-topic, but that isn't the only way to do it. https://en.wikipedia.org/wiki/Earthing_system Is an interesting read. -- atp "A moto

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

On Friday 27 December 2019 00:04:32 Chris Albertson wrote: > I think you are confusing ground and neutral. Ground should never > move off zero. But the neutral can be up to about 5 volts above > ground. > Which is why, as a CET, I like to specify static ground, which on this side of the pon

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

I think you are confusing ground and neutral. Ground should never move off zero. But the neutral can be up to about 5 volts above ground. On Thu, Dec 26, 2019 at 2:26 PM N wrote: > > Current used to power device will cause some voltage drop in ground so grond > potential at device will be

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

Current used to power device will cause some voltage drop in ground so grond potential at device will be higher. Ground potential will also vary with power used by device. This higher potential might cause a problem if there for example is digital communicatin between devices. > A ground loop i

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

A ground loop is then a single device is connected to ground more than once. A good example is a motor driver. It might in a "power" input called "+" and "-" with the minus side grounded to the AC mains ground or a chassis frame ground. The in addition there is a logic level control signa

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

On Thursday 26 December 2019 01:49:40 andrew beck wrote: > Hey guys. > > I have a bit of a story here and some questions.. I Have been seeing > the emails coming through and there looks like there is a massive pool > of knowledge here in the user list and the forum. So here it goes > hopefully s

Re: [Emc-users] looking for advice on best wiring practices and grounding on cnc mills

> On 26 Dec 2019, at 06:49, andrew beck wrote: > > That meant that the brake actually had a lot more than 24 volts in > it relative to machine earth(like 200v I am guessing, it was a big bang!) That shouldn’t normally matter. I would be very surprised if the brake winging insulation wasn’t go

[Emc-users] looking for advice on best wiring practices and grounding on cnc mills

Hey guys. I have a bit of a story here and some questions.. I Have been seeing the emails coming through and there looks like there is a massive pool of knowledge here in the user list and the forum. So here it goes hopefully someone can help me. I have a Big 6.5 ton VMC that I have been retrof

Re: [Emc-users] Looking for advice on LinuxCNC Version

John, Todd, Nicklas, Just wanted to thank you gentlemen one more time for the help. I really appreciate it. Regards, Joe Hildreth -- Check out the vibrant tech community on one of the world's most engaging tech sites

Re: [Emc-users] Looking for advice on LinuxCNC Version

Once 2.8 is released I would switch to it _unless_ you need some feature in the new Master. This way you get bug fixes only and nothing that could be a show stopper... or a surprise. JT On 3/30/2017 11:45 AM, Joe Hildreth wrote: > John, > > Thank you again for the help and information. I will

Re: [Emc-users] Looking for advice on LinuxCNC Version

John, Thank you again for the help and information. I will try this out when I get home. One last question, when 2.8 is released, is it a matter then of just changing the software sources to be on that release or would it be best to just keep on the buildbot sources? Thank you again for your

Re: [Emc-users] Looking for advice on LinuxCNC Version

stall. Simply add the Linuxcnc Buildbot repository for Master to your source list and install it with Synaptic. http://buildbot.linuxcnc.org/ - Original Message - From: "Joe Hildreth" To: "emc-users" Sent: Thursday, March 30, 2017 12:18:44 PM Subject: Re: [Emc-users] Looki

Re: [Emc-users] Looking for advice on LinuxCNC Version

Hi Joe, http://buildbot.linuxcnc.org/ You just need to change the deb line in the synaptic package manager to point to: deb http://buildbot.linuxcnc.org/ precise master-rtpreempt and deb-src http://buildbot.linuxcnc.org/ precise master-rtpreempt and follow the instructions to add the key.

Re: [Emc-users] Looking for advice on LinuxCNC Version

It is possible to download with git, I do not have link but it should be rather simple to find. On Thu, 30 Mar 2017 11:21:42 -0500 (CDT) Joe Hildreth wrote: > John, > > Thank you for the information. Todd mentioned that I could run the 2.8-pre > version, but I am unsure how to get it to my

Re: [Emc-users] Looking for advice on LinuxCNC Version

John, Thank you for the information. Todd mentioned that I could run the 2.8-pre version, but I am unsure how to get it to my wheezy box. Are there software sources I need to point to to do this, or something else. I would be happy with a link to some instructions. Also, is there a time lin

Re: [Emc-users] Looking for advice on LinuxCNC Version

Todd, Thank you for the feedback. Can you point me to some information on how to get the 2.8-pre installed on my debian wheezy box? Thanks, Joe Hildreth - On Mar 30, 2017, at 11:05 AM, Todd Zuercher zuerc...@embarqmail.com wrote: > The current Master branch (2.8-pre) is a descendant of

Re: [Emc-users] Looking for advice on LinuxCNC Version

The gantry component was a work around for 2.7. The JA branch has been merged into Master for some time now. Master is the development branch and when 2.8 is released it will contain most if not all of the things currently in master. JT On 3/30/2017 10:40 AM, Joe Hildreth wrote: > Hello all,

Re: [Emc-users] Looking for advice on LinuxCNC Version

Subject: [Emc-users] Looking for advice on LinuxCNC Version Hello all, I built a gantry type router a year or so ago and was more interested in getting it running than anything else. My gantry runs along the Y axis and has 2 motors (joints). I am running the Axis GUI on LinuxCNC 2.6.x. My current

[Emc-users] Looking for advice on LinuxCNC Version

Hello all, I built a gantry type router a year or so ago and was more interested in getting it running than anything else. My gantry runs along the Y axis and has 2 motors (joints). I am running the Axis GUI on LinuxCNC 2.6.x. My current setup has the ystep and ydir signals driving two motors