Re: [Emc-users] Face Milling

2020-05-21 Thread Gene Heskett
On Thursday 21 May 2020 21:46:50 John Dammeyer wrote: > So I popped over to a friends to borrow a carbide 3 cutter face mill. > Alas the MORSE Taper draw bar fitting wouldn't work with my R8 to MT3 > adaptor. But the more rounded cutters gave me the idea to use my > green wheel on the carbide

Re: [Emc-users] Face Milling

2020-05-21 Thread John Dammeyer
So I popped over to a friends to borrow a carbide 3 cutter face mill. Alas the MORSE Taper draw bar fitting wouldn't work with my R8 to MT3 adaptor. But the more rounded cutters gave me the idea to use my green wheel on the carbide brazed cutter I was usingin the mid size fly cutter holder.

Re: [Emc-users] Face Milling

2020-05-21 Thread John Dammeyer
Good idea. I'll have to try that. John > -Original Message- > From: Jon Elson [mailto:el...@pico-systems.com] > Sent: May-21-20 3:44 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Face Milling > > On 05/21/2020 11:39 AM, John Dammeyer wrote: > > This was a year

Re: [Emc-users] Face Milling

2020-05-21 Thread Stuart Stevenson
Use a lathe face plate with 3 adjustable supports and an indicator in the the center of the spindle, move the machine to dial in the face plate to the machine motion. Then use a bar in the spindle to swing the indicator to sweep the face plate. Same as Jon's procedure but without machining. On

Re: [Emc-users] Face Milling

2020-05-21 Thread Jon Elson
On 05/21/2020 11:39 AM, John Dammeyer wrote: This was a year ago but based on the latest fly cutting results I'm getting slight ridges so either the fly cutter isn't exactly turning a perfect horizontal arc or I need to tram again. http://www.autoartisans.com/mill/TrammedVertical.jpg

Re: [Emc-users] Face Milling

2020-05-21 Thread Stuart Stevenson
If you are getting mismatch from one pass to another your spindle is not perpendicular to the plane of motion you have the workpiece clamped to. The only other thing I can think of is if are cutting with the Y axis and indexing the X axis for the passes across the workpiece. If the table extends

Re: [Emc-users] Face Milling

2020-05-21 Thread Gene Heskett
On Thursday 21 May 2020 12:07:42 John Dammeyer wrote: > It's fairly robust. Like a Grizzly G3616. > http://www.autoartisans.com/mill/Mill_CNC > I almost bought one of those off the showroom floor at Lycoming Mall up in PA when grizzly had a facility there, but couldn't figure out how to get it

Re: [Emc-users] Face Milling

2020-05-21 Thread John Dammeyer
This was a year ago but based on the latest fly cutting results I'm getting slight ridges so either the fly cutter isn't exactly turning a perfect horizontal arc or I need to tram again. http://www.autoartisans.com/mill/TrammedVertical.jpg Or it's something to do with the backlash. John >

Re: [Emc-users] Face Milling

2020-05-21 Thread Sam Sokolik
one of the small ones... :) Bigger ones do increase your work area ;) On Thu, May 21, 2020 at 11:27 AM Jon Elson wrote: > On 05/20/2020 11:56 PM, John Dammeyer wrote: > > > > Anyone used one of these? > > https://www.aliexpress.com/item/4000890081459.html > > > > > Years ago, we had CNC

Re: [Emc-users] Face Milling

2020-05-21 Thread Jon Elson
On 05/20/2020 11:56 PM, John Dammeyer wrote: Anyone used one of these? https://www.aliexpress.com/item/4000890081459.html Years ago, we had CNC meetings at Roland Friestad's shop near Galesburg, IL. He made CNC retrofits to sell to tech schools, and apparently made some of his own tooling.

Re: [Emc-users] Face Milling

2020-05-21 Thread John Dammeyer
Thanks. That's a lot of inserts if you have a collision. John > -Original Message- > From: andy pugh [mailto:bodge...@gmail.com] > Sent: May-21-20 9:03 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Face Milling > > On Thu, 21 May 2020 at 16:55, John Dammeyer

Re: [Emc-users] Face Milling

2020-05-21 Thread John Dammeyer
It's fairly robust. Like a Grizzly G3616. http://www.autoartisans.com/mill/Mill_CNC But it's got a poor excuse for an ACME feed not on the X axis with about 0.024" backlash. Climb milling in the X direction with slow RPM and a large cutter causes the table to shake. So once the spindle

Re: [Emc-users] Face Milling

2020-05-21 Thread andy pugh
On Thu, 21 May 2020 at 16:55, John Dammeyer wrote: > > How many cutting bits and what type and R8 or straight shaft or some other > quick change? Mine is a standard shell-mill mount, and I mount it on a BT30 adaptor. I think it has 8 inserts. -- atp "A motorcycle is a bicycle with a

Re: [Emc-users] Face Milling

2020-05-21 Thread John Dammeyer
How many cutting bits and what type and R8 or straight shaft or some other quick change? John > -Original Message- > From: andy pugh [mailto:bodge...@gmail.com] > Sent: May-21-20 1:22 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Face Milling > > On Thu, 21 May

Re: [Emc-users] Linuxcnc servo problem

2020-05-21 Thread Peter C. Wallace
Just rebuilt master and it seems to be fixed (feedrate set to 0 by esc) Peter Wallace Mesa Electronics I take that back, its still flakey Peter Wallace Mesa Electronics ___ Emc-users mailing list Emc-users@lists.sourceforge.net

Re: [Emc-users] Linuxcnc servo problem

2020-05-21 Thread Peter C. Wallace
On Thu, 21 May 2020, Peter C. Wallace wrote: Date: Thu, 21 May 2020 07:15:22 -0700 (PDT) From: Peter C. Wallace Reply-To: "Enhanced Machine Controller (EMC)" To: "Enhanced Machine Controller (EMC)" Subject: Re: [Emc-users] Linuxcnc servo problem On Thu, 21 May 2020, Horv?th Csaba wrote:

Re: [Emc-users] Linuxcnc servo problem

2020-05-21 Thread Peter C. Wallace
On Thu, 21 May 2020, Horv?th Csaba wrote: Date: Thu, 21 May 2020 14:01:04 +0200 From: "[UTF-8] Horv?th Csaba" Reply-To: "Enhanced Machine Controller (EMC)" To: "Enhanced Machine Controller (EMC)" Subject: [Emc-users] Linuxcnc servo problem Hi, I have the following problem: Linuxcnc

Re: [Emc-users] Face Milling

2020-05-21 Thread dave engvall
Round inserts are nice if you have the power and stiffness to use them. Only in desperation would I use a fly cutter simple because of the unbalanced load. Because of their radius the round inserts will give a nice finish. Have fun. Dave On 5/20/20 9:56 PM, John Dammeyer wrote: I've been

Re: [Emc-users] Linuxcnc servo problem

2020-05-21 Thread andy pugh
On Thu, 21 May 2020 at 13:03, Horváth Csaba wrote: > If I am running a code and I press ESC button to stop the execute, then > after pressing the button, the axes move again for approx. 15-20 mm. You mean that the program does not stop immediately? How long is this extra movement in terms of

[Emc-users] Linuxcnc servo problem

2020-05-21 Thread Horváth Csaba
Hi, I have the following problem: Linuxcnc 2.9 pre xxx MESA 7i90HD + 7i33 + 3 analog servo (ELMO ISP) If I am running a code and I press ESC button to stop the execute, then after pressing the button, the axes move again for approx. 15-20 mm. The enable signal is not removed from the servo

Re: [Emc-users] mesa 7i76 spindle encoder not counting suddenly

2020-05-21 Thread Gene Heskett
On Thursday 21 May 2020 01:57:06 andrew beck wrote: > hey peter > > I had a look and the unless there is a shorted out pin in the servo > drive connector itself I think the wiring is all good. > > and I highly doubt the servo drive has problems all I did was connect > the 24v back into the servo

Re: [Emc-users] Face Milling

2020-05-21 Thread andy pugh
On Thu, 21 May 2020 at 05:59, John Dammeyer wrote: > https://www.aliexpress.com/item/4000890081459.html I have a 100mm dia face mill that I use for facing off castings. I bought it used from eBay. But my milling machine has an excess of torque and a dearth of speed. -- atp "A motorcycle is a

Re: [Emc-users] mesa 7i76 spindle encoder not counting suddenly

2020-05-21 Thread andrew beck
hey peter I had a look and the unless there is a shorted out pin in the servo drive connector itself I think the wiring is all good. and I highly doubt the servo drive has problems all I did was connect the 24v back into the servo on pin which is how it has been running for the last ages.