Re: [Emc-users] Resetting rotary movement count

On 10 Jan 2016, at 00:22, andy pugh wrote: > On 5 January 2016 at 11:34, Dave Caroline wrote: >> Here is an example of with and without limits in a trunnion design >>

Re: [Emc-users] Resetting rotary movement count

On 10.01.16 09:45, Marcus Bowman wrote: > On 10 Jan 2016, at 00:22, andy pugh wrote: > > > On 5 January 2016 at 11:34, Dave Caroline > > wrote: > >> Here is an example of with and without limits in a trunnion design > >>

Re: [Emc-users] Resetting rotary movement count

On Sunday 10 January 2016 06:56:35 Erik Christiansen wrote: > On 10.01.16 09:45, Marcus Bowman wrote: > > On 10 Jan 2016, at 00:22, andy pugh wrote: > > > On 5 January 2016 at 11:34, Dave Caroline wrote: > > >> Here is an example of with and without limits in a

Re: [Emc-users] Resetting rotary movement count

On 5 January 2016 at 11:34, Dave Caroline wrote: > Here is an example of with and without limits in a trunnion design > http://www.ebay.co.uk/itm/CNC-Rotary-Table-Dividing-Head-Rotational-Axis-4th-5th-Axis-A-B-Axis-100MM-Chuck-/161679996211 Here is another, the B

Re: [Emc-users] Resetting rotary movement count [Solved]

On 5 Jan 2016, at 23:10, Marcus Bowman wrote: > > > On 5 Jan 2016, at 22:48, John Thornton wrote: > >> Just leave the limits out of the ini for the rotary. >> >> http://linuxcnc.org/docs/2.7/html/config/ini-config.html#_axis__lt_num_gt_section >> >> JT > > Thanks, John. I see the emails

Re: [Emc-users] Resetting rotary movement count

On 1/5/2016 12:32 AM, Dave Caroline wrote: > I had problems in this area, I think it is not a feature but a bug > that an rotary axis cannot be set to 0 or be infinite in its > rotations, the wrapped rotary docs as an option just seemed wrong for > this when I last read them a few years ago. >

Re: [Emc-users] Resetting rotary movement count

On Tuesday 05 January 2016 02:32:51 Dave Caroline wrote: > I had problems in this area, I think it is not a feature but a bug > that an rotary axis cannot be set to 0 or be infinite in its > rotations, the wrapped rotary docs as an option just seemed wrong for > this when I last read them a few

Re: [Emc-users] Resetting rotary movement count

On Tuesday 05 January 2016 06:34:12 Dave Caroline wrote: > Here is an example of with and without limits in a trunnion design > http://www.ebay.co.uk/itm/CNC-Rotary-Table-Dividing-Head-Rotational-Ax >is-4th-5th-Axis-A-B-Axis-100MM-Chuck-/161679996211 > > Dave Ya got me Dave. :) W/O moving the

Re: [Emc-users] Resetting rotary movement count

On Tue, Jan 05, 2016 at 10:12:15AM +, andy pugh wrote: > > Re-homing the rotary would reset the absolute position. > There are HAL pins to home each axis. (halui.joint.N.home bit in) > You can drive a bit pin from G-code. > So I think it could be done, but it seems like a kludge. You can't

Re: [Emc-users] Resetting rotary movement count

On 01/05/2016 03:33 AM, Gene Heskett wrote: > > I've not seen a rotary that could not turn forever. Can you supply a URL > to such a device? > > Yes, stacked rotary axes. We use one at work. they have a little Yuasa rotary table bolted to a HUGE Yuasa rotary table. The small table has a

Re: [Emc-users] Resetting rotary movement count

On 5 Jan 2016, at 13:30, andy pugh wrote: > On 5 January 2016 at 13:11, Sarah Armstrong > wrote: >> or >> 999,999,999,999,999,967,336,168,804,116,691,273,849,533,185,806,555,472,917,961,779,471,295,845,921,727,862,608,739,868,455,469,056.00 > > You wouldn't want

Re: [Emc-users] Resetting rotary movement count

Just leave the limits out of the ini for the rotary. http://linuxcnc.org/docs/2.7/html/config/ini-config.html#_axis__lt_num_gt_section JT On 1/5/2016 4:43 PM, Marcus Bowman wrote: > > Anyway; for now I will try much larger limits on the odd occasion when I need > to do this kind of rotary

Re: [Emc-users] Resetting rotary movement count

Here is an example of with and without limits in a trunnion design http://www.ebay.co.uk/itm/CNC-Rotary-Table-Dividing-Head-Rotational-Axis-4th-5th-Axis-A-B-Axis-100MM-Chuck-/161679996211 Dave On 05/01/2016, andy pugh wrote: > On 5 January 2016 at 04:37, Cecil Thomas

Re: [Emc-users] Resetting rotary movement count

>I had problems in this area, I think it is not a feature but a bug >that an rotary axis cannot be set to 0 or be infinite in its If [AXIS_n]MAX_LIMIT is missing, the value used is 1e99

Re: [Emc-users] Resetting rotary movement count

Gentlemen, On my bridge mill 5 axis Fanuc 15mb XYZ linear axes BC head with the B axis riding on the C axis - picture of same but newer machine http://mightyusa.com/b-5000%205bc.html Absolute encoders on all axes C axis has slip rings - there is no need to unwind while cutting - the axis can

Re: [Emc-users] Resetting rotary movement count

or 999,999,999,999,999,967,336,168,804,116,691,273,849,533,185,806,555,472,917,961,779,471,295,845,921,727,862,608,739,868,455,469,056.00 On 5 January 2016 at 13:03, Dewey Garrett wrote: > >I had problems in this area, I think it is not a feature but a bug > >that an rotary

Re: [Emc-users] Resetting rotary movement count

Dewey I had no idea that size limit existed, same default for negative? Maybe time for an update to the docs? even removal of the standard from stepconf (or at least ask the user) Dave --

Re: [Emc-users] Resetting rotary movement count

On 5 January 2016 at 13:11, Sarah Armstrong wrote: > or > 999,999,999,999,999,967,336,168,804,116,691,273,849,533,185,806,555,472,917,961,779,471,295,845,921,727,862,608,739,868,455,469,056.00 You wouldn't want to get anywhere near this limit, though. The real

Re: [Emc-users] Resetting rotary movement count

On 5 Jan 2016, at 22:48, John Thornton wrote: > Just leave the limits out of the ini for the rotary. > > http://linuxcnc.org/docs/2.7/html/config/ini-config.html#_axis__lt_num_gt_section > > JT Thanks, John. I see the emails from Dewey and Jon as well. I met the same problem again this

Re: [Emc-users] Resetting rotary movement count

On Mon, Jan 04, 2016 at 11:18:20PM +, Marcus Bowman wrote: > > so the fault message indicates the G10 L20 resets the co-ordinates > of the selected co-ordinate system, but not the absolute machine > co-ordinates. This means I do not have a command to prevent > rotation being cumulative and

Re: [Emc-users] Resetting rotary movement count

On Monday 04 January 2016 18:34:20 andy pugh wrote: > On 4 January 2016 at 23:18, Marcus Bowman > > wrote: > > Taking another view, absolute machine co-ordinates should be just > > that - absolute. In that case, Max_Limit should refer to a count of > > the

Re: [Emc-users] Resetting rotary movement count

On 4 January 2016 at 23:18, Marcus Bowman wrote: > Taking another view, absolute machine co-ordinates should be just that - > absolute. In that case, Max_Limit should refer to a count of the co-ordinates > within the currently selected co-ordinate system G54

Re: [Emc-users] Resetting rotary movement count

I have a small lathe that I set up to use a servo drive on the spindle, essentially making the spindle a rotary axis. The servo was large enough to provide the torque needed to make the cuts and it made coordinated spindle moves wonderfully. (think thread cutting, cam grinding, milling cutter

Re: [Emc-users] Resetting rotary movement count

I had problems in this area, I think it is not a feature but a bug that an rotary axis cannot be set to 0 or be infinite in its rotations, the wrapped rotary docs as an option just seemed wrong for this when I last read them a few years ago. Winding back is a very slow operation and should not be