Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread dave
On Sat, 17 Dec 2011 19:52:23 +0100 Michael Haberler mai...@mah.priv.at wrote: just a vague idea - it would occur to me that transforming the probe result into a parametric model for the Z surface, feed that to the trajectory planner and make the TP 'do the right thing' as a move is executed

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Michael Haberler
actually it probably can go into a kinematics module, like below I think it could work out as follows: - take grid of Z probes - compute surface parameters and pass to kinematics module via HAL pins - mill unmodified G-code The advantage would be - beyond 'no gcode translation needed' that it

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Viesturs Lācis
2011/12/17 Michael Haberler mai...@mah.priv.at: actually it probably can go into a kinematics module, like below I think it could work out as follows: - take grid of Z probes - compute surface parameters and pass to kinematics module via HAL pins - mill unmodified G-code The advantage

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread andy pugh
On 17 December 2011 20:16, Michael Haberler mai...@mah.priv.at wrote: actually it probably can go into a kinematics module, like below Ideally you would pick up 3 fiducial marks and do a full 3D tilt and rotation compensation. (There already is a kins which corrects for somebodies twisted

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Viesturs Lācis
2011/12/17 andy pugh bodge...@gmail.com: On 17 December 2011 20:16, Michael Haberler mai...@mah.priv.at wrote: actually it probably can go into a kinematics module, like below Ideally you would pick up 3 fiducial marks and do a full 3D tilt and rotation compensation. (There already is a kins

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Michael Haberler
Am 17.12.2011 um 21:45 schrieb Viesturs Lācis: Michael, I like proposals fo solving different tasks in kinematics module :)) I understood everything except that I have no idea, how do You intend store the probed surface and then feed into kinematics module through HAL pin. It seems to me

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread andy pugh
On 17 December 2011 20:45, Viesturs Lācis viesturs.la...@gmail.com wrote: It seems to me that creating a mesh from probed points will require to extend EMC to be able to do so and then there needs to be some tool that reads that mesh and tells, what is Z in a given X,Y point. This is

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread andy pugh
On 17 December 2011 21:01, Michael Haberler mai...@mah.priv.at wrote: and, of course, come up with a good interpolation algorithm - but there's a large body of work there; for instance that is exactly the stuff the GIS folks use for map coloring from discrete digital height models Linear

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Viesturs Lācis
2011/12/17 Michael Haberler mai...@mah.priv.at: remember, its almost 2012, and the interpreter sports full extensibility by Python methods these days so you're not limited to the RS274NGC pits any more for extending emc - this is not limited to 'scripted toolchange' if you get really

[Emc-users] rtapi kernel must be loaded?

2011-12-17 Thread alice
i go to the terminal to load rtapi as docs say cd emc2 halrun, then it gives error consistig of rtapi kernel not loaded. i would include the file but ive not yet figured out how to save it to send it to the paste bin this install disk was burned dec 16 thanx jeremy

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread BRIAN GLACKIN
I am not good with programming, but I work with surfaces in mining applications all the time. Why not create an XY grid of the z surface and then load that into EMC much like one loads in a map for backlash. The grid can be created with as few as three points or as many as the operator desires.

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Dean Hedin
Thanks for the link. Much appreciated. I have a machine that was formally a CNC router. The gantry ways are pretty parallel with the table surface to begin with. The real problem comes in the pcb mouning to the table. You need to make sure that the PCB does not bow upwards. I try to pre-flex

[Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Sven Wesley
Have you seen this? Z-adjustments for non planar surfaces. http://phk.freebsd.dk/CncPcb/ http://ing.dk/uploads/society/content/201.png There's a longer thread herehttp://www.cnczone.com/forums/pcb_milling/82628-cheap_simple_height-probing.html . I haven't seen this one before, even though the

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Viesturs Lācis
2011/12/17 Sven Wesley svenne.d...@gmail.com: Have you seen this? Z-adjustments for non planar surfaces. http://phk.freebsd.dk/CncPcb/ Thank You very much! The solution to isolate PCB and use existing tool in router for probing is genious! Since I might need to build a small machine for PCB

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Sven Wesley
2011/12/17 Viesturs Lācis viesturs.la...@gmail.com Thank You very much! The solution to isolate PCB and use existing tool in router for probing is genious! Since I might need to build a small machine for PCB routing, I have a question to those that do work on PCBs and would like to test

[Emc-users] A little more on scopes

2011-12-17 Thread Mark Wendt (Contractor)
Here's another interesting little development: http://www.gabotronics.com/development-boards/xmega-xprotolab.htm http://www.gabotronics.com/development-boards/xmega-xminilab.htm Saw these on another mailing list this morning. Mark

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread andy pugh
On 17 December 2011 10:43, Viesturs Lācis viesturs.la...@gmail.com wrote: The extension of the test g-code file is .ngc: http://phk.freebsd.dk/CncPcb/testpcb.ngc Are there any other CNC controlling applications that use this file extension or does it mean that this solution has actually been

[Emc-users] i got it i got it

2011-12-17 Thread alice
well it turns out if you do it exactly as the install exactly as the docs say it will work. just fyi anyone downloading emc to usb should get the infra recorder and use it to burn the image as windows defaualt burner will not work nor will nero9 as it will not burn an image from usb, well i

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Eric Keller
At the link it says it's emc2 code On Sat, Dec 17, 2011 at 7:04 AM, andy pugh bodge...@gmail.com wrote: On 17 December 2011 10:43, Viesturs Lācis viesturs.la...@gmail.com wrote: The extension of the test g-code file is .ngc: http://phk.freebsd.dk/CncPcb/testpcb.ngc Are there any other

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Sven Wesley
2011/12/17 andy pugh bodge...@gmail.com That looks like EMC2 G-code to me. I am _fairly_ sure that the use of the O-word for subs and conditionals is unique to EMC2. It _is_ written for EMC. -- Learn Windows Azure

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Sven Wesley
Does anyone read my lines?! :D 2011/12/17 Eric Keller eekel...@psu.edu At the link it says it's emc2 code On Sat, Dec 17, 2011 at 7:04 AM, andy pugh bodge...@gmail.com wrote: On 17 December 2011 10:43, Viesturs Lācis viesturs.la...@gmail.com wrote: The extension of the test g-code

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread gene heskett
On Saturday, December 17, 2011 12:00:41 PM Sven Wesley did opine: Does anyone read my lines?! :D Yippers Sven. In fact I will likely use that code on my converted micromill next spring to make the pcb's for the opto stuff needed to do my 7x12 lathe. Thanks for the URL.s. 2011/12/17 Eric

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Viesturs Lācis
2011/12/17 Sven Wesley svenne.d...@gmail.com: Does anyone read my lines?! :D I do :)) I went through the cnczone thread, this whole thing looks very promising, thank You for bringing it in the light! Viesturs --

[Emc-users] Cheap Power Supplies (UK)

2011-12-17 Thread andy pugh
I just found this auction on eBay UK. It looks like a really good spec for powering a CNC machine. (10A @ 50V, 12A @12V,) http://www.ebay.co.uk/itm/260901486013 -- atp The idea that there is no such thing as objective truth is, quite simply, wrong.

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Michael Haberler
just a vague idea - it would occur to me that transforming the probe result into a parametric model for the Z surface, feed that to the trajectory planner and make the TP 'do the right thing' as a move is executed would greatly simplify the usage of this method, and get rid of the G-code

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Viesturs Lācis
2011/12/17 Michael Haberler mai...@mah.priv.at: just a vague idea - it would occur to me that transforming the probe result into a parametric model for the Z surface, feed that to the trajectory planner and make the TP 'do the right thing' as a move is executed would greatly simplify the

Re: [Emc-users] Very neat idea of controlling the Z-level

2011-12-17 Thread Jon Elson
Viesturs Lācis wrote: Are there any other CNC controlling applications that use this file extension or does it mean that this solution has actually been tested on EMC? I also noticed that there was absolutely NO MENTION of EMC anywhere in Poul's document! But, the .ngc, and the way the