Re: [Emc-users] Moving axis while paused

I would say that the "proper answer" is to teach the users to properly use holding-tabs, hold-downs, etc. such that there are never parts popping free. Being a hobbyist or "one time/occasional user" is no excuse for poor or dangerous technique. On Sun, Jun 26, 2016 at 6:40 PM, sam sokolik

Re: [Emc-users] G0 vs G1-specific functions?

On 06/27/2016 02:41 AM, Danny Miller wrote: > In a similar thread, I'm doing 3D carving with some aggressive > acceleration profiles. The XHC mpg is SUPER rough when stepping around, > it's supposed to allow you to use different accelerations for mpg > inputs, but none of that section has ever

Re: [Emc-users] G0 vs G1-specific functions?

Hmm, interesting, but that's only to reduce accel in manual mode, right? It'd reduce shaking while using the mpg, but the G0 moves in the g-code would create motor stalls if used at full speed. I'm wondering if all G0 and manual input could be a mode of higher speed but more limited in

Re: [Emc-users] G0 vs G1-specific functions?

On 27 June 2016 at 17:00, wrote: > Can the acceleration be changed dynamically through HAL and still work > properly? I don't think that the system even looks at the acceleration pins when the machine is running G-code. -- atp "A motorcycle is a bicycle with a

Re: [Emc-users] G0 vs G1-specific functions?

On 06/27/2016 09:09 AM, dan...@austin.rr.com wrote: > Is there any HAL component that can tell if it's running as G0 or G1? The pin motion.motion-type, described here: http://linuxcnc.org/docs/html/man/man9/motion.9.html "traverse" (1) is a G0, "linear feed" (2) is a G1, and "arc feed" (3) is

Re: [Emc-users] Moving axis while paused

On 27 June 2016 at 15:28, Chris Kelley wrote: > I would say that the "proper answer" is to teach the users to properly use > holding-tabs, hold-downs, etc That reminds me, I used holding tabs a lot in CamBam, but haven't even found them in Fusion360 or Inventor HSM. I

Re: [Emc-users] G0 vs G1-specific functions?

Can the acceleration be changed dynamically through HAL and still work properly? Because say the traj planner looks 10 moves ahead, and it's 2x G1 followed by 3x G0 moves then 5x G1. It forms a plan based on the acceleration rules. But when it hits the 3rd command, the HAL suddenly changes

Re: [Emc-users] Moving axis while paused

Andy, They're in the "Tabs" item in the Geometry tab of the 2D Contour CAM operation. They may also be in other CAM operations but I haven't run into them yet. Drew On 6/27/16 8:56 AM, andy pugh wrote: > On 27 June 2016 at 15:28, Chris Kelley wrote: >> I would say that

Re: [Emc-users] Moving axis while paused

I've worked with a number of CNC router users on a bunch of jobs. I had to change my beliefs along the way, based on experience. Tabs are often a huge liability. They are a lot of work to cut, leave a finish problem where they were cut off, and sometimes tear out the work when you move the

Re: [Emc-users] Major lags when zeroing axes

Yeah I don't expect any immediate solution, but this is a significant problem which doesn't need to be. If you've done an X-offset by +2", then the limits check and live preview just needs to offset by +2". They don't need to recalculate every line of g-code. Unless, of course, you use a G10

Re: [Emc-users] Major lags when zeroing axes

You can not just shift the extents by +2" on a non-cartesian machine - you have to recheck every point. We tend to forget how complex the general case can be when we're used to running cartesian mills/routers. Stephen On Mon, Jun 27, 2016 at 1:18 PM, andy pugh wrote: > On

Re: [Emc-users] Major lags when zeroing axes

On 27 June 2016 at 17:16, wrote: > Yeah I don't expect any immediate solution, but this is a significant problem > which doesn't need to be. If you've done an X-offset by +2", then the limits > check and live preview just needs to offset by +2". They don't need to >

Re: [Emc-users] Moving axis while paused

On 6/27/2016 9:56 AM, andy pugh wrote: > On 27 June 2016 at 15:28, Chris Kelley wrote: >> I would say that the "proper answer" is to teach the users to properly use >> holding-tabs, hold-downs, etc > That reminds me, I used holding tabs a lot in CamBam, but haven't even >

Re: [Emc-users] Moving axis while paused

Our router has a thick MDF spoil-board that material gets wood-screwed down to. We had an old machine that had T-slots but they were never in the right position or we never had enough hold-down clamps. Our members/users are taught to either use enough screws so that warped material is held flat

Re: [Emc-users] Moving axis while paused

On 06/27/2016 11:56 AM, andy pugh wrote: > However, to say that it is possible to never need to stop a job > part-way through to fix something is, I think, going a bit far. As I > recall the moveoff component was written after a request from a > commercial roll-machining company who wanted to be

Re: [Emc-users] G0 vs G1-specific functions?

> On the MPG on my machines I use ilowpass to smooth the output of the jog > wheel before sending it to LinuxCNC. In addition to the userspace module for the xhc-hb04 pendant, LinuxCNC provides helper scripts that provide two ways to smooth stepped motion requested by an xhc-hb04 pendant. Usage

[Emc-users] The Monarch Lathe - a visit

Hello all. Thank you very much for all your advice. It has been passed on to my friend. After doing a bunch of cleaning work on the lathe, he asked me for some help, to make sure he was proceeding in the right direction, and test the lathe. The machine is a Monarch model 12 C. An electrician

[Emc-users] The "joints-axes" project has been merged into master - REQUIRES updates to configs!

Hi all, The joints-axes branch has now been merged into master! Joints/axes was a project to separate "joints" from "axes" in order to better support machines where a single motor does not directly drive motion along an axis, such as gantry machines, robot arms, hexapods, and similar. Anyone

Re: [Emc-users] The "joints-axes" project has been merged into master - REQUIRES updates to configs!

On 27 June 2016 at 22:25, Moses McKnight wrote: > Anyone running the development branch of LinuxCNC will need to update your > configs. Details on the changes needed are in the documentation here: In most cases the configuration will be automatically upgraded when you try to

Re: [Emc-users] Major lags when zeroing axes

You could use G10 L2 to set the work coordinates for all the axis you want to change in a single command, so that you only have to do the resample once. - Original Message - From: "andy pugh" To: "Enhanced Machine Controller (EMC)"

Re: [Emc-users] G0 vs G1-specific functions?

On 27 June 2016 at 09:41, Danny Miller wrote: > > So, is there a way to have RAPID_ACCELERATION (for G0 alone) as a > separate thing from MAX_ACCELERATION for the axes, used for G1 motion? Possibly. There are HAL pins to control acceleration. However they are not read

[Emc-users] G0 vs G1-specific functions?

Two-parter here: I was looking over another carving job on the preview window and realized there's really no way to tell where the work is. That is, we go up to Z=2" for the start/end coords, but I need to know where the carving itself starts. It's shown in a different color because it's all

Re: [Emc-users] Major lags when zeroing axes

On 27 June 2016 at 09:16, Danny Miller wrote: > When I go to zero the work coordinates, EACH axis results in > recalculating the entire file, which can take minutes. The delay is actually probably the toolpath preview (and limits check) updating. The motion system doesn't

[Emc-users] Major lags when zeroing axes

I work a lot with 3D carving. The files are often quite huge. When I go to zero the work coordinates, EACH axis results in recalculating the entire file, which can take minutes. Really it shouldn't require any recalculation (Mach3 doesn't) since it's just offsetting the coordinates, but I