Re: [Emc-users] lowest cost in cpu to blink a pyvcp led

2020-06-25 Thread Gene Heskett
On Thursday 25 June 2020 21:31:36 Gene Heskett wrote: > On Wednesday 24 June 2020 14:27:11 Gene Heskett wrote: > > On Wednesday 24 June 2020 13:22:09 andy pugh wrote: > > > For an on-screen message: > > > http://linuxcnc.org/docs/2.7/html/man/man9/message.9.html > > > > Thats exactly what I'm

Re: [Emc-users] lowest cost in cpu to blink a pyvcp led

2020-06-25 Thread Gene Heskett
On Wednesday 24 June 2020 14:27:11 Gene Heskett wrote: > On Wednesday 24 June 2020 13:22:09 andy pugh wrote: > > On Wed, 24 Jun 2020 at 17:55, Gene Heskett > > wrote: > > > If I interrupt that signal path with an and2, and drive the 2nd > > > input with a timer set to be a 555 like oscillator >

[Emc-users] dxf2gcode

2020-06-25 Thread Roland Jollivet
my 2 cents.. When saving the .dxf, try saving as a R14 format. This is easily read by most programs. The newer versions are full of headers that may cause problems. The files are in ASCII so you can examine what's there and compare versions. I watched the video. Interesting. It looks like a

Re: [Emc-users] dxf2gcode

2020-06-25 Thread Martin Dobbins
Just found a YouTube video about that, problem solved-maybe. Thanks, Todd https://www.youtube.com/watch?v=40CRimcwAZo Martin From: Todd Zuercher Freecad's g-code tools also includes drag-knife dress-ups. I haven't tried to use them but think I'm about to.

Re: [Emc-users] dxf2gcode

2020-06-25 Thread Martin Dobbins
Does Fusion 360 cam do drag knives? One of these days I might turn this dual boot machine into a tri boot machine that runs "hackintosh" Then I can enjoy some of the joys of programs like these without the inherent insecurity of Windows. Martin P.S. a four-sided primitive shape was created,

Re: [Emc-users] dxf2gcode

2020-06-25 Thread Todd Zuercher
Freecad's g-code tools also includes drag-knife dress-ups. I haven't tried to use them but think I'm about to. (I have to set up some tool paths for a glass cutting head we just purchased (which is more or less a drag-knife.) Todd Zuercher P. Graham Dunn Inc. 630 Henry Street  Dalton, Ohio

Re: [Emc-users] dxf2gcode

2020-06-25 Thread Chris Albertson
Reading PyCAM docs these issues sometimes depend of the order the lines were created and if they form a closed path or if the lines were made from two verticals then two horizontals then a trim command.I don't know if dxf3gcode is sensitive to little things like this. None of the software

Re: [Emc-users] dxf2gcode

2020-06-25 Thread Martin Dobbins
I really like openscad, and the uphill struggle with Freecad has just begun to get easier. I had no idea that Freecad could make g code until Todd just told me  The beginning of this video has a pretty good illustration of how a drag knife works (it's different):

Re: [Emc-users] dxf2gcode

2020-06-25 Thread Martin Dobbins
I found a couple of DXF files on thingiverse which I downloaded, a couple of old librecad drawings that I have (pretty simple stuff) and tried all of those with the same results. Does PyCAM handle drag knives? Martin From: Chris Albertson DXF files can be

Re: [Emc-users] dxf2gcode

2020-06-25 Thread Martin Dobbins
Hi Todd, The only reason for "messing" with dfx2gcode as a middleman is that it has a "drag knife" setting, which (I hope means) "on the line, corners over x degrees exceed by caster amount, lift Z routine for caster change to new direction" I wanted to see how that routine worked as far as g

Re: [Emc-users] dxf2gcode

2020-06-25 Thread Glenn Edwards
All, I have purchased Q-Cad recently, the DXF portion is free and the CAM costs extra, and have found the DXF editor pretty good. I have struggled with the CAM portion that does the DXF to G-code, however. It does not seem well supported- email inquiries go unanswered. My two-cents. Best

Re: [Emc-users] dxf2gcode

2020-06-25 Thread Todd Zuercher
Freecad can make G-code directly, leaving out the DXF middle man. Have you tried that? Todd Zuercher P. Graham Dunn Inc. 630 Henry Street  Dalton, Ohio 44618 Phone:  (330)828-2105ext. 2031 -Original Message- From: Martin Dobbins Sent: Thursday, June 25, 2020 1:34 PM To: Enhanced

Re: [Emc-users] dxf2gcode

2020-06-25 Thread Martin Dobbins
I've tried two coming from Freecad, both saved as "Autocad dxf", one was a simple 2D fully constrained 20mm square and the other was the same thing padded to a thickness of 0.254 mm. I can try a dxf from another source if that is the problem. Martin From:

Re: [Emc-users] dxf2gcode

2020-06-25 Thread Chris Albertson
DXF files can be complex and yours might even have problems. Can other software import the DXF files? Try that, make a trivial change then re-export to DXF. The other option is PyCAM. It can generate g-code from DXF also. Or look at the traceback and see what went wrong. There is something

Re: [Emc-users] dxf2gcode

2020-06-25 Thread Sebastian Kuzminsky
On 6/25/20 10:43 AM, Martin Dobbins wrote: I'm trying to use this on Ubuntu 20.04 because I'm looking to write some g code for a tiny (Roland) drag knife, I wanted to see how it handled corners. Unfortunately, while the gui will load OK when I try to load a dxf I'm getting a runtime error:

[Emc-users] dxf2gcode

2020-06-25 Thread Martin Dobbins
I'm trying to use this on Ubuntu 20.04 because I'm looking to write some g code for a tiny (Roland) drag knife, I wanted to see how it handled corners. Unfortunately, while the gui will load OK when I try to load a dxf I'm getting a runtime error: File