Messages

851

General Mach Discussion / Re: Acceleration problem

« on: March 01, 2007, 06:41:35 AM »

Thanks Brett.  I'll give it a try tomorrow.

852

General Mach Discussion / Re: Acceleration problem

« on: March 01, 2007, 05:56:48 AM »

\
Can you give a description of what it does or does not do  Brett

853

General Mach Discussion / Re: Acceleration problem

« on: March 01, 2007, 05:51:34 AM »

Brett

Yes I was running feed rate override.

No back lash comp.

Version R2.0.040

The "FRO on queue"  I can not check now.

It is late and I have come in from the shed before the neighbors complain. 

What should it be set to ?

Greg

854

General Mach Discussion / Acceleration problem

« on: March 01, 2007, 05:04:24 AM »

I have got to the stage where I am doing test runs on my almost completed router.

I have set velocity and acceleration to a conservative level on the Z axis.

When jogging at 100% or doing G0 moves on the MDI screen the Z moves very smoothly.

Then when air cutting the Roadrunner, I can hear that the Z is jumping steps as it ends a move.

It is like it moves too quickly and stops too suddenly. Either up move or down.

Should not the velocity and acceleration as set in Motor Tuning be the overriding limit?


I just had a thought    Setting the scale up to 10 may have affected  this ....... would it


If that is so then changing the scale at the DRO discards the motor tuning.  Could this be so

855

General Mach Discussion / Re: Problem with referencing home and the limit switches

« on: February 25, 2007, 05:08:17 PM »

I'm no expert but this sounds to me like it may very well be a noise issue.

Try upping your debounce time.

856

NC Pod / The latest update re Plugin and Firmware as of 23rd Feb

« on: February 23, 2007, 04:08:01 AM »

The following is the paragraph relevant to the ncPod, of a post that Art made on the Yahoo group today.


The ncPod is till undergoing some final adjustments in its firmware as well,
its taking longer than I hoped (doesnt all firmware..), but
seems to be working fairly well at most sites, a jog bug has been discovered in
a few test sites, but other than that it appears to be working
well, the neww firmware for it will give ramped homing routines, fix the jog
bug, and then probing can be completed. That will just about do
it for the ncPod.


See link for the whole post,

http://groups.yahoo.com/group/mach1mach2cnc/message/69776

857

NC Pod / Re: NC Pod ship date? Buy beta now or wait?

« on: February 23, 2007, 12:22:43 AM »

Yeah it's all dropped in a bit of a hole   

Wonder how the plugin is going.   

858

NC Pod / Re: Soft or hard wired reset ?

« on: February 17, 2007, 11:56:01 PM »

Bump 

859

NC Pod / Re: Homing with the ncPod

« on: February 10, 2007, 11:41:47 PM »

Well it is getting to crunch time for me.  I really need to know if dual drive homing is going to work.

Presently wiring everything in to my enclosure and need to know whether it is the Pod or an LPT breakout board going in there.

Bench testing sees that homing pins do not activate the leds on the diagnostics page. 

I suspect that there are some things that the Pod wants to do itself that are normaly done within Mach and it is always

going to be a compromise to get Mach to run it.  Really hope I am wrong here.

Any guidance from the gurus ?   

860

NC Pod / Soft or hard wired reset ?

« on: February 10, 2007, 10:58:19 PM »

Whenever the pod looses communication for whatever reason I have found I must

restart Mach and turn power off and on to the Pod to get it to reset before Mach restarts.

Am I missing something here ? Is there an easier way ?

Presently I am wiring up all the gear in an enclosure and want to know if I must provide a reset for the Pod. 

By that I mean a momentary switch to interupt the power to the Pod to reset it.

Greg