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Re: Ethernet SmoothStepper first test
« Reply #80 on: February 07, 2012, 01:12:33 PM »
Hi to developer of ESS!

First of all great work, thanks.

I use ESS on a Emco FB2 with homemade stepper motor control and Mach3

My question is about home switch handling.

Three different home switches on my machine are in the middle of travel area.
They are activated by a ramp on x,y and z support so that they are in off position
on left half of travel and in on position on right half of travel.

Referencing with parallel port driver :

Case 1:
Support moves to the right if it is on left half of travel (ref switch is open)
After ref switch is activated, support moves little bit to left to free the switch.

Case 2:
Support moves to the left if it is in the right half of travel (ref switch is closed)
and stopped if ref switch is free.

So  I never have to care if support is in left or right position of ref switch when referencing is performed.


Referencing with ESS:

Support always moves to right side without notice of ref switch status.
If ref switch is off, referencing is normal as described in case 1.
If ref switch is activated  support travels left until axis limit is reached.

Maybe this is a bug in ESS plugin.

Regards,
Andreas.





     
« Last Edit: February 07, 2012, 01:26:04 PM by baumandr »
Re: Ethernet SmoothStepper first test
« Reply #81 on: February 07, 2012, 01:39:55 PM »
Hi to developer of ESS!

First of all great work, thanks.

I use ESS on a Emco FB2 with homemade stepper motor control and Mach3

My question is about home switch handling.

Three different home switches on my machine are in the middle of travel area.
They are activated by a ramp on x,y and z support so that they are in off position
on left half of travel and in on position on right half of travel.

Referencing with parallel port driver :

Case 1:
Support moves to the right if it is on left half of travel (ref switch is open)
After ref switch is activated, support moves little bit to left to free the switch.

Case 2:
Support moves to the left if it is in the right half of travel (ref switch is closed)
and stopped if ref switch is free.

So  I never have to care if support is in left or right position of ref switch when referencing is performed.


Referencing with ESS:

Support always moves to right side without notice of ref switch status.
If ref switch is off, referencing is normal as described in case 1.
If ref switch is activated  support travels left until axis limit is reached.

Maybe this is a bug in ESS plugin.

Regards,
Andreas.

Remark:
The line:

If ref switch is activated  support travels left until axis limit is reached.

should be changed to:

If ref switch is activated  support also travels right until axis limit is reached.


Andreas.
     
Re: Ethernet SmoothStepper first test
« Reply #82 on: February 08, 2012, 12:00:51 PM »
Hi Andreas
I am not familiar with your with your machine.
I am using Hall effect switches and I am not having any homing problems.
Bill
Re: Ethernet SmoothStepper first test
« Reply #83 on: February 08, 2012, 01:34:31 PM »
Hi Bill,

Do You use the hall effect switch at the ends of your machines travel or in the center of it.
I use ref switch so that it is closed all the right half of travel and is open all the left half.

With PP driver referencing starts from left to right  if switch is open and right to left if switch is closed.
With ESS referencing starts always from right to left without notice of switch on or off.

Tested with identical settings in both cases.

Andreas.
Re: Ethernet SmoothStepper first test
« Reply #84 on: February 08, 2012, 02:30:16 PM »
I sense at the end of the table and use softlimits for all other table limits.
Re: Ethernet SmoothStepper first test
« Reply #85 on: February 08, 2012, 08:33:10 PM »
If this is the wrong area to post let me know (i am new here)..
I just received the Ethernet smooth-stepper..my question is I have also bought a break out board for i/o that physically slides onto port 1 and 2 of the smooth stepper..
I want to use port three as my port that goes to my gecko g540 is this possible or do i have to remain on port one(thus making my breakout board unusable)...
the break out board is a :   
C25 - Smooth Stepper Terminal Board from CNC4PC..
I am hoping i just have to set the step port and dir port in "ports and pins" to 3 and 3 thus setting it to port three..
and maybe setting pins 2 thru 9 in the smooth-stepper to outputs(again in the smooth-stepper plugin config) on the port three ..

Offline Jeff_Birt

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Re: Ethernet SmoothStepper first test
« Reply #86 on: February 08, 2012, 08:38:34 PM »
Port 3 will work just like Port 1 or Port 2 so you can feel free to use it. You can use one of these adapters: http://www.soigeneris.com/DB25_M_M_Adapter-details.aspx to allow you to plug a LPH26 to DB25 cable directly into the G540.

Happy machining , Jeff Birt
 

Offline rcaffin

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Re: Ethernet SmoothStepper
« Reply #87 on: February 11, 2012, 01:25:18 AM »
Been testing an ESS for a month or two now. In use most days.
Ran out of data once - increased the data buffer from 1 k  to 2k (ESS config). Not seen that problem since.
Some Mach crashes, not ESS fault.
Big trouble with touch probe input for a while, but it turned out the BoB was set up very marginal and not driving the ESS reliably. Wierd symptoms, but all gone now I fixed the setup.

Beats the hell out of the USB SS I had - that used to crash about once a day. Purely imagination of course, but the ESS just seems to run a touch smoother too. My personal opinion is that the ESS is now industrial quality, while the SS was a bit temperamental.

Cheers


Re: Ethernet SmoothStepper first test
« Reply #88 on: February 11, 2012, 10:46:25 AM »
rcaffin can you show where you increased that buffer by a screen print i can't seem to find it..
i am using version 10da2 of the ess pluggin..thanks

Offline Hood

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Re: Ethernet SmoothStepper first test
« Reply #89 on: February 11, 2012, 10:53:59 AM »
I would hazard a guess that it is the controller frequency that is being talked about and usually setting higher if you have issues will make them worse so possibly it is not that setting.
Hood