Re: [Emc-users] Tool Marks?

Feed rate, RPM, depth of cut, not enough rigidity in your router frame. All those can cause chatter marks like that. Could be flex in the table or the MDF isn't secured well enough. How is it held down? What is the recommended chip load per tooth for the cutter you are using? Its manufacturer

Re: [Emc-users] Tool Marks?

On Tuesday 24 May 2016 22:05:33 Todd Zuercher wrote: > Dust collection for us isn't an issue. We have a very larg central > system (100Hp fan). It has enough suck at the machine to easily suck > up 6" square pieces of 3/4" mdf right off the table if they aren't > sucked down. The machines are

Re: [Emc-users] Tool Marks?

Dust collection for us isn't an issue. We have a very larg central system (100Hp fan). It has enough suck at the machine to easily suck up 6" square pieces of 3/4" mdf right off the table if they aren't sucked down. The machines are equipped with an air jet to assist chip removal. The

Re: [Emc-users] Multi-spindle machines

We several multi spindle wood carving routers already running Linuxcnc. It was not hard to set up a little hal logic to enable/disable the spndle(s) you want to use. I set up a few custom M-codes, for it. Works like a charm. Big heavy duty multi spindle woodworking machines used to be much

Re: [Emc-users] Multi-spindle machines

we have a "lathe" at work that has a spindle that uses "S" codes and a rotary "C" axis. The rotary axis often is used as a spindle. The spindle feeds on Z and the C axis is mounted on X. But I suppose that's not what you are asking about. On Tue, May 24, 2016 at 4:59 PM, andy pugh

Re: [Emc-users] linuxcnc and raspberry pi3

I am sorry that we are having such difficulties in communicating with one another. I would like you to reach your personal goals with your current project. I would like to see hardware drivers for ARM boards such as raspberry pi become a part of linuxcnc, or reduce the technical barriers to

Re: [Emc-users] Multi-spindle machines

Polygon turning https://www.youtube.com/watch?v=KMdBIBzGtKI multi spindle cnc https://www.youtube.com/watch?v=97JZX1JkYQk sliding head with a back spindle https://www.youtube.com/watch?v=TkYNLlk6EE0 and for the greedy multi spindle milling https://www.youtube.com/watch?v=_IYFMfM7dYk Dave

Re: [Emc-users] Multi-spindle machines

On 24 May 2016 at 23:24, Ralph Stirling wrote: > Don't know which kind of multispindle machine you were thinking of... I was thinking in general terms -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of

Re: [Emc-users] Multi-spindle machines

I would enjoy, given the opportunity, attempting to set up LCNC on a turning center with a main spindle, subspindle, and multiple turrets. These are very efficient machines for making turned parts (and generally have live tooling as well). I believe one typical way of controlling these is with a

Re: [Emc-users] linuxcnc and raspberry pi3

On 2016-05-24 23:33, andy pugh wrote: > As I read the IRC chat, it was not about the desirability of the > driver, but the problems of integrating it without breaking the build > system. Could you please describe how this 2 files can break the build system. I think integrating is a little bit

Re: [Emc-users] Multi-spindle machines

On Tuesday 24 May 2016 17:42:46 John Thornton wrote: > In my case no as only one spindle is being used at a time. I assume > for multi-spindle routers where they are making several copies of the > same part that one speed for all is OK. > > JT I have such a multiple copy machine about 30 miles

Re: [Emc-users] Tool Marks?

On Tuesday 24 May 2016 17:19:42 Bruce Layne wrote: And I put back on the list; > On 05/24/2016 05:04 PM, Gene Heskett wrote: > > Walnut is pretty, but its the single most toxic wood dust about. > > I love the look and feel of walnut, but the dust is very > aggravating.  Much more so than other

Re: [Emc-users] Multi-spindle machines

In my case no as only one spindle is being used at a time. I assume for multi-spindle routers where they are making several copies of the same part that one speed for all is OK. JT On 5/24/2016 4:19 PM, andy pugh wrote: > On 24 May 2016 at 22:07, John Thornton wrote: >>

Re: [Emc-users] Multi-spindle machines, used for?

On 24 May 2016 at 22:16, Nicklas Karlsson wrote: > I have seen old multi spindle for sale cheap but not been able to figure any > good use for it. Just to be clear, I am not talking about multi-spindle screw-machines here. Those are cool, but not relevant. Those

Re: [Emc-users] linuxcnc and raspberry pi3

On 24 May 2016 at 22:16, W. Martinjak wrote: > 2 weeks development and then: sorry no stamp! If this is (for want of a better term) an rpi_eth module for Hostmot2 then I think that it would be a useful addition. (I did, for a while, consider an RPi EPP mode for the 7i43 and

Re: [Emc-users] Multi-spindle machines

On 24 May 2016 at 22:07, John Thornton wrote: > I've seen some talk about multi-spindle routers and I'm fixing to start > working on one. The main thing is being able to turn the spindles off > and on as needed. Would you need different speeds on different spindles? I rather

Re: [Emc-users] Multi-spindle machines, used for?

I have seen old multi spindle for sale cheap but not been able to figure any good use for it. I have suspected there have been good sales person. On another occasion I could see CNC machine sold "not used since bought from seller" On Tue, 24 May 2016 16:07:35 -0500 John Thornton

Re: [Emc-users] linuxcnc and raspberry pi3

On 2016-05-24 17:57, Dave Caroline wrote: > They did not say no, were not saying no, were not implying no, > You misunderstood, jepler was merely asking for a pull request to make > the review process easy. > > He wants to help. thereabout? https://www.youtube.com/watch?v=KZ-SdU53MnY The odd

Re: [Emc-users] Multi-spindle machines

I've seen some talk about multi-spindle routers and I'm fixing to start working on one. The main thing is being able to turn the spindles off and on as needed. The last one I did I used digital out IIRC. JT On 5/24/2016 3:59 PM, andy pugh wrote: > Has anyone here ever wanted multi-spindle

Re: [Emc-users] Tool Marks?

On Tuesday 24 May 2016 16:42:26 John Kasunich wrote: > On Tue, May 24, 2016, at 04:29 PM, Chris Albertson wrote: > > Gene, > > > > I think you had a better answer then mine. I suspected resonance > > but you found a few more sources of it. > > > > One question: Is vacuuming really better then

Re: [Emc-users] Tool Marks?

On Tuesday 24 May 2016 16:29:53 Chris Albertson wrote: > Gene, > > I think you had a better answer then mine. I suspected resonance but > you found a few more sources of it. > > One question: Is vacuuming really better then blowing. My theory is > that I can at best only get one atmosphere of

[Emc-users] Multi-spindle machines

Has anyone here ever wanted multi-spindle support in LinuxCNC? What is the use-case? What does multi-spindle G-code look like? -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch,

Re: [Emc-users] Tool Marks?

On Tue, May 24, 2016, at 04:29 PM, Chris Albertson wrote: > Gene, > > I think you had a better answer then mine. I suspected resonance but > you found a few more sources of it. > > One question: Is vacuuming really better then blowing. My theory is > that I can at best only get one

Re: [Emc-users] Tool Marks?

Gene, I think you had a better answer then mine. I suspected resonance but you found a few more sources of it. One question: Is vacuuming really better then blowing. My theory is that I can at best only get one atmosphere of pressure difference with a vacuum but a blower can have any amount

Re: [Emc-users] Tool Marks?

Yrs, I did the math in my head. What happens I think the the board vibrates and the frequency of the vibrations is (no wonder) in sync with the spindle speed. Som times the wood hits the gap in the spirit and other times the dod hits the cutting edge. I think what matters is the ratio of the

Re: [Emc-users] linuxcnc and raspberry pi3

Jepler was objecting to doing stuff outside of the dev source tree and he gave reasons for objecting. (Read the first transcript of the exchange) Dave On 5/24/2016 11:57 AM, Dave Caroline wrote: > They did not say no, were not saying no, were not implying no, > You misunderstood, jepler was

Re: [Emc-users] Tool Marks?

On Tuesday 24 May 2016 13:07:48 Todd Zuercher wrote: > For those that didn't get the attachment. > http://s33.postimg.org/8w84v716n/0524160945.jpg > The material is MDF (I did say that in the first message) and has not > discernible grain pattern of it's own. Other cuts (made with other > tools)

Re: [Emc-users] Tool Marks?

I sometimes get tool chatter with my cheap chinese lathe. I have found that wobbling the spindle speed up and down can kill the resonance. In fact this is so effective that I have considered adding a function generator comp to the spindle speed and a check-box that would automatically dither the

Re: [Emc-users] Tool Marks?

On Tuesday 24 May 2016 10:14:17 Todd Zuercher wrote: > Anyone know the root cause of tool marks like this? Or better yet how > to prevent them? The lines are not in a straight line or consistent > angle, in fact there are places on this piece where they wave up and > down. > > The tool is a

[Emc-users] Latency problem with debian 7 and not with ubuntu 10.04

Hello, i86 pentium 4 Fujitsu siemens scenic E600 : with ubuntu 10.04 and 2.7 linuxcnc *latency +/- 22,000 max* I format the pc and i install debian 7 and 2.7 linuxcnc *latency +/- 65,000 max* Why do you have an idea? Best regards, Pierre

Re: [Emc-users] Linuxcnc and Arduino

Thank you all, I'll do tests Best regards, Pierre 2016-05-22 5:09 GMT+02:00 Chris Albertson : > On Thu, May 19, 2016 at 12:37 AM, Erik Christiansen < > dva...@internode.on.net > > wrote: > > > On 18.05.16 08:30, Chris Albertson wrote: > > > This is a general problem

Re: [Emc-users] Tool Marks?

Oops, the file that cut out that piece was an older one it was actually only running 120ipm at 17300rpm, (so 144 rev per inch) - Original Message - From: "Chris Albertson" To: "Enhanced Machine Controller (EMC)" Sent: Tuesday,

Re: [Emc-users] Tool Marks?

I like Chris' analysis, but when I do the math, I get 85 revolutions per inch instead of 8.5 revolutions per inch. Also, my pi is 3.1416, so I get 1.273 revolutions per inch when rolling the .250" diameter cutter. Chris got 1.33, so his pi must be 3, but I'd say that's within engineering

Re: [Emc-users] Tool Marks?

Lets see, 200ipm turning 17,000rpm comers to 8.5 revolutions per inch. Think about it this way, if you rolled the 1/4 router but over the wood you would have 1.33 revolutions per inch. it would not cut at all because there is no relative motion between cutter and wood. But you are getting to

Re: [Emc-users] Tool Marks?

For those that didn't get the attachment. http://s33.postimg.org/8w84v716n/0524160945.jpg The material is MDF (I did say that in the first message) and has not discernible grain pattern of it's own. Other cuts (made with other tools) on that same piece pictured have no pattern. Someone asked

Re: [Emc-users] Tool Marks?

On 24 May 2016, at 17:22, BRIAN GLACKIN wrote: > I concur with Nicklaus. This looks like normal wood grain (each year ring > having a harder and softer section) with the exception of the near center > of view. In this case it looks like the grain was compressed near a > branch/knot. This is

Re: [Emc-users] Tool Marks?

I concur with Nicklaus. This looks like normal wood grain (each year ring having a harder and softer section) with the exception of the near center of view. In this case it looks like the grain was compressed near a branch/knot. This is all mute it that is not a piece of wood. On Tuesday, May

Re: [Emc-users] Tool Marks?

I can see the figure but are nor sure I could see the tool marks. Is the wood dry? Are you feeding to fast? On Tue, 24 May 2016 10:14:17 -0400 (EDT) "Todd Zuercher" wrote: > Anyone know the root cause of tool marks like this? Or better yet how to

Re: [Emc-users] Attachments/Pictures with Mailing List Posts?

On Tue, May 24, 2016 at 11:50:32AM -0400, John Kasunich wrote: > On Tue, May 24, 2016, at 11:41 AM, Mark Johnsen wrote: > > Is there anyway I can get the picture? Am the only one w/ this issue? > > That message must be coming from your mail supplier. I responded privately but this might be

Re: [Emc-users] Attachments/Pictures with Mailing List Posts?

I am on gmail and did see the pic Dave Caroline -- Mobile security can be enabling, not merely restricting. Employees who bring their own devices (BYOD) to work are irked by the imposition of MDM restrictions. Mobile

Re: [Emc-users] linuxcnc and raspberry pi3

They did not say no, were not saying no, were not implying no, You misunderstood, jepler was merely asking for a pull request to make the review process easy. He wants to help. Dave Caroline -- Mobile security can be

Re: [Emc-users] Attachments/Pictures with Mailing List Posts?

On Tue, May 24, 2016, at 11:41 AM, Mark Johnsen wrote: > I never get the pictures or attachments that are sent. I'm sure it's my > setup w/ gmail, but I get the impression there are others who CAN 'see' the > pictures... I am very jealous of these all seers :-) > > -- next part

[Emc-users] Attachments/Pictures with Mailing List Posts?

I never get the pictures or attachments that are sent. I'm sure it's my setup w/ gmail, but I get the impression there are others who CAN 'see' the pictures... I am very jealous of these all seers :-) -- next part -- A non-text attachment was scrubbed... Name:

Re: [Emc-users] linuxcnc and raspberry pi3

On 2016-05-24 17:05, andy pugh wrote: > I don't see it as cronyism, I see it as both sides of the conversation > being baffled about the motivations of the other. Show me where, please. I have requested for a first short review. Not more or no less. > Maybe there is a misunderstanding about hwat

Re: [Emc-users] linuxcnc and raspberry pi3

On 24 May 2016 at 15:46, Dave Cole wrote: >> Yes, or someone treats you as a complete fool and you find yourself online >> with a helpdesk like Al Bundy. >> And this cronyism is weird. >> >>

Re: [Emc-users] linuxcnc and raspberry pi3

On 5/23/2016 12:12 PM, W. Martinjak wrote: > On 2016-05-23 17:28, andy pugh wrote: >> On 23 May 2016 at 13:40, W. Martinjak wrote: >>> It's right that the off-topic stuff quietens, but if you are the "wrong >>> one" not just the off-topic stuff. >>> Then suddenly there is

Re: [Emc-users] Tool Marks?

I a picture of the machine and setup could have helped, it could be vibration of tool, machine or work. You also did not mention the material, Some materials have grain due to how they are made. Dave Caroline -- Mobile