gecko 201 slipping/losing steps

#56166

I am running a 3axis gantry with gecko 201's and a 750 mhz laptop.
The steppers are Mclennan nema34 triple stacks 72 volts.
The axis run 5mm pitch ball screws, mach2 is set to drive at 45000 Hz

Problem 1)
If I run the macine at 30mm a sec or over i get lost steps and some
times the steppers will make a noise like they are slipping. I am
having trouble tuning the motors to a reliable setup. Will the machine
run faster or more reliably with a faster computer? Or is there a
ceiling to how fast you can run a 201 regardless of computer speed.
Problem 2)
program e-stops now and then seems to run well with spindle tuned off.
Any help would be much appreciated,
Justen

art

#56167

Hi Junsten:

When it Estops, do you get a limit switch error? As to the speed, make sure you run the drivertest.exe program and see that its got a good waveform.

Thanks,
Art
www.artofcnc.ca

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Show quoted text

----- Original Message ----- 
From: "callum002c" <callum002c@...>
To: <mach1mach2cnc@...>
Sent: Sunday, June 04, 2006 11:31 PM
Subject: [mach1mach2cnc] gecko 201 slipping/losing steps

I am running a 3axis gantry with gecko 201's and a 750 mhz laptop.
The steppers are Mclennan nema34 triple stacks 72 volts.
The axis run 5mm pitch ball screws, mach2 is set to drive at 45000 Hz

#56168

--- In mach1mach2cnc@..., art <fenerty@...> wrote:
Thanks for the reply Art,   When the program E Stops there are no limit led lit at all if I
hit reset the program will run again. I have run the ocx driver test
a number of times but I must not be the sharpest knife in the drawer
as i dont get the idea of it at all. When I run the test it runs
fine and reports that the test is finished Is there a pictorial
example somewhere of what a good waveform looks like so i can
compare? The frequency remains fairly constant throughout the test ie
23 600 +or -.
Sorry to be a pain in the %$#@ you must have answered thousands of
questions like this before.
Thankyou very much, Justen

Hi Junsten:

 When it Estops, do you get a limit switch error? As to the speed,make sure
you run the drivertest.exe program and see that its got a goodwaveform.

Thanks,
Art
www.artofcnc.ca

Videos And Support Forums 
Users Map: 
----- Original Message -----
From: "callum002c" <callum002c@...>
To: <mach1mach2cnc@...>
Sent: Sunday, June 04, 2006 11:31 PM
Subject: [mach1mach2cnc] gecko 201 slipping/losing steps


I am running a 3axis gantry with gecko 201's and a 750 mhz laptop.
The steppers are Mclennan nema34 triple stacks 72 volts.
The axis run 5mm pitch ball screws, mach2 is set to drive at45000 Hz

art

#56170

Hi Justen:

The LED's may not light, if noise triggers an estop, then it can be very fast. Check the History button to see if its indicating an Estop or External Estop. If so, then there is a setting called "Debounce" in the config/logic. Set it to 2000 to see if it helps.

Thanks,
Art
www.artofcnc.ca

Videos And Support Forums 
Users Map: 

Show quoted text

----- Original Message ----- 
From: "callum002c" <callum002c@...>
To: <mach1mach2cnc@...>
Sent: Monday, June 05, 2006 2:44 AM
Subject: [mach1mach2cnc] Re: gecko 201 slipping/losing steps


--- In mach1mach2cnc@..., art <fenerty@...> wrote:
Thanks for the reply Art,  When the program E Stops there are no limit led lit at all if I
hit reset the program will run again. I have run the ocx driver test
a number of times but I must not be the sharpest knife in the drawer
as i dont get the idea of it at all. When I run the test it runs
fine and reports that the test is finished Is there a pictorial
example somewhere of what a good waveform looks like so i can
compare? The frequency remains fairly constant throughout the test ie
23 600 +or -.
Sorry to be a pain in the %$#@ you must have answered thousands of
questions like this before.
Thankyou very much, Justen

Hi Junsten:

 When it Estops, do you get a limit switch error? As to the speed,make sure
you run the drivertest.exe program and see that its got a goodwaveform.

Thanks,
Art
www.artofcnc.ca

Videos And Support Forums 
Users Map: 
----- Original Message ----- 
From: "callum002c" <callum002c@...>
To: <mach1mach2cnc@...>
Sent: Sunday, June 04, 2006 11:31 PM
Subject: [mach1mach2cnc] gecko 201 slipping/losing steps


I am running a 3axis gantry with gecko 201's and a 750 mhz laptop.
The steppers are Mclennan nema34 triple stacks 72 volts.
The axis run 5mm pitch ball screws, mach2 is set to drive at45000 Hz







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gecko 201 slipping/losing steps