Re: [Emc-developers] GCode preview in C++ (Qt)

2014-03-26 Thread Frank Tkalcevic
It's a GUI app, so it is hard to quantify, but simply traversing through a tree and displaying the contents of the nodes happens almost instantly using Qt. I also understand C++ a lot better and find it easier to read than python. -Original Message- From: EBo [mailto:e...@sandien.com]

[Emc-developers] Submakefile nightmare

2014-03-26 Thread Frank Tkalcevic
I've just tried to add a library to one of the submakefile. The first time I tried to make, my files compiled, but with errors. I fixed a few errors, recompiled and NOTHING! For next 3 hours I moved my files, renamed them, created a subdirectory, delete extraneous commands from the submakefile,

Re: [Emc-developers] GCode preview in C++ (Qt)

2014-03-26 Thread Frank Tkalcevic
I’m working on a couple of projects. I’m trying to improve GWiz. I started trying to tweak the UI – but the wxPython screens wasted so much of my time I gave up and just re-wrote it in Qt. I want to add a GCode preview so I can see what the wizards are doing (I use GWiz for my cnc-lathe –

Re: [Emc-developers] Question on 14.04 LTS

2014-03-26 Thread Jon Elson
On 03/25/2014 11:34 PM, Gene Heskett wrote: Humm, maybe I'll have to look at it again. The last time I used it, on my laptop while I was in the UP, I found that while it worked well, it was very hard to configure. I wasn't aware they had commandeered the RMB to do much of that. If it can

Re: [Emc-developers] Submakefile nightmare

2014-03-26 Thread Michael Haberler
Am 26.03.2014 um 12:01 schrieb Frank Tkalcevic fr...@franksworkshop.com.au: I've just tried to add a library to one of the submakefile. The first time I tried to make, my files compiled, but with errors. I fixed a few errors, recompiled and NOTHING! For next 3 hours I moved my files,

[Emc-developers] kinematics detail question

2014-03-26 Thread David Raila
I have a machine with 6 axes and non-trivial kinematics, and currently I am only currently using inverse kinematics. The constraint is such that some joints must be moved exclusively of others for the machine to be deterministic, i.e. if joints that need to be exclusive are moved

Re: [Emc-developers] New Trajectory Planner

2014-03-26 Thread Robert Ellenberg
Thanks everyone for the kind words! Grad school has been a long but rewarding road. My topic is stability estimation for humanoid robots. It's a bit less exciting than it sounds, in that 90% of the work is mucking around in a robot simulator. Still, it's been a lot of fun to work on, and if the

Re: [Emc-developers] Submakefile nightmare

2014-03-26 Thread Chris Radek
On Wed, Mar 26, 2014 at 10:01:05PM +1100, Frank Tkalcevic wrote: make: Failed to remake makefile `Makefile'. Yeah, this is not a very good error message. Some help here: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?FailedToRemakeMakefile

Re: [Emc-developers] New Trajectory Planner

2014-03-26 Thread Robert Ellenberg
Hi Sam, This acceleration limitation is by design, so that the TP can deal with tangential and normal acceleration separately. On a circular arc segment, the acceleration along the path is limited to 0.5 * a_max. Using the pythagorean theorem, the maximum normal acceleration is: sqrt( a_max^2 -

Re: [Emc-developers] kinematics detail question

2014-03-26 Thread Sebastian Kuzminsky
On 3/26/14 11:48 , David Raila wrote: I have a machine with 6 axes and non-trivial kinematics, and currently I am only currently using inverse kinematics. The constraint is such that some joints must be moved exclusively of others for the machine to be deterministic, i.e. if joints

Re: [Emc-developers] kinematics detail question

2014-03-26 Thread andy pugh
On 26 March 2014 17:48, David Raila ra...@illinois.edu wrote: For example the machine can move X,Y,Z simultaneously, but motion of any of A,B,C must be exclusive, i.e. only one of A,B,C can be in motion at a time, and during that motion X,Y,Z must be fixed. Is this a motion limit, or a

Re: [Emc-developers] New Trajectory Planner

2014-03-26 Thread sam sokolik
Clear as mud :) I only sort of understand it. (that is ok though - and why I don't do any trajectory work) I was wondering because mach seems to run the profile full speed (no dips) at 3600mm/min vs the new TP starts to dip a bit above 3200mm/min. That is approaching the 12% I suppose.

Re: [Emc-developers] New Trajectory Planner

2014-03-26 Thread Robert Ellenberg
One thing I noticed... Lets say we are running that profile at 3500mm/s and it is dipping like this http://imagebin.org/301375 if you slow the feedrate down - the dips get scaled also. I would think at 3200mm/min it would flatten out. :) (probably another nit-pick) That's a good point,

Re: [Emc-developers] New Trajectory Planner

2014-03-26 Thread sam sokolik
here is 50% (1750mm/min) http://imagebin.org/301967 sam On 03/26/2014 02:49 PM, Robert Ellenberg wrote: One thing I noticed... Lets say we are running that profile at 3500mm/s and it is dipping like this http://imagebin.org/301375 if you slow the feedrate down - the dips get scaled also.

Re: [Emc-developers] GCode preview in C++ (Qt)

2014-03-26 Thread EBo
On Mar 25 2014 12:00 AM, Frank Tkalcevic wrote: I want to add a linuxcnc gcode preview to my C++ Qt application. So the first question is, has anyone already done this, so I can reuse the code? I guess I would first ask if the licenses are compatible. If so, then I am sure you are