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Author Topic: Y axis move when just X axis is homed  (Read 8818 times)

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Re: Y axis move when just X axis is homed
« Reply #10 on: December 22, 2010, 02:44:05 PM »
Are you talking about the Noise Filters in the smoothstepper config?  They look like they are set to 200Microseconds to me...I can try 10 as you suggest but 200 didn't seem massive so I am thinking you are referring to something else I am not sure what that might be or where to change it.

Offline Hood

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Re: Y axis move when just X axis is homed
« Reply #11 on: December 22, 2010, 02:46:02 PM »
It is a massive value for the SS or at least from any testing I have done.
Hood
Re: Y axis move when just X axis is homed
« Reply #12 on: December 22, 2010, 03:05:39 PM »
okay I'll try 10 tonight and post my results.

I was wondering too about the max homing distance...I have no idea what that number is measured in....unless it is motor pulses or something very tiny
then my value of 500000 seems pretty large.
« Last Edit: December 22, 2010, 03:19:49 PM by macdarren »

Offline Hood

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Re: Y axis move when just X axis is homed
« Reply #13 on: December 22, 2010, 03:13:52 PM »
I would imagine the distance value is units (inch or mm depending on your setup)

Regarding the filtering, I have zero for most but I think on the Bridgeport I have 1.43 for the MPG.  I remember messing with the filtering when it first came out and I set 50 in the E-Stop just to see and I see the delay when I pressed my E-Stop compared to before with 0 there. In fact I think the contactors for my servo drives had actually dropped out before Mach saw the signal but it was a while ago so could just be imagining it ;D

Hood
Re: Y axis move when just X axis is homed
« Reply #14 on: December 22, 2010, 08:25:41 PM »
Well I tried 10 in the filters settings on the SS.  I also tried 1 just to see what happened.
I didn't have any bounce problems so clearly 200 is probably excessive, however the new filter values didn't solve the problem.
Using smaller numbers seemed to change the amount of Y movement reported in the DRO but it still happens.
I have now set things to 10 just for reference and future testing.
What I have found in testing this that it only happens when the Y axis is non-zero.  (the Ref-y led is red)  if it is .0001 it will move to something like .025, if it is zero it will stay at zero.
Clearly something is happening here in Mach where it decides to move this non zero axis when zeroing another axis

darren

Offline Jeff_Birt

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Re: Y axis move when just X axis is homed
« Reply #15 on: December 22, 2010, 11:42:32 PM »
What version of the SmoothStepper plug-in are you using? Also, have you changed any of the homing macros?
Happy machining , Jeff Birt
 
Re: Y axis move when just X axis is homed
« Reply #16 on: December 23, 2010, 10:14:39 AM »
Mach reports SS config version Beta2 0.015ogx
Device Manager reports: SmoothStepper v1.2   Driver Version: 2.4.6.0

I don't know what a homing macro is for sure, though I can guess, and I have no idea how to change it so I do not think I have.
How would I look at them?

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Re: Y axis move when just X axis is homed
« Reply #17 on: December 23, 2010, 01:27:26 PM »
I am presuming you have normally closed switches for your Home/Limit switches, have a look on the diagsnotics page and see if the LEDs are active when you are off the switches if they are then change the active state of them.
Hood
Re: Y axis move when just X axis is homed
« Reply #18 on: December 23, 2010, 03:14:48 PM »
LEDs act as expected....lighted when on the switch off when off the switch.

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Re: Y axis move when just X axis is homed
« Reply #19 on: December 23, 2010, 03:21:04 PM »
What kind of switches are you using?

Cant see anything wrong with your xml and SS config other than the filtering as was mentioned earlier so not sure what to suggest.
Presume its a fairly recent version of Mach you are using?
Hood