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noob settings questions
21 May 2011 13:04 #9968
by ppope357
noob settings questions was created by ppope357
Hi
I have recently installed emc2 and need some help getting things configured. I am a noob to emc2, as well as diy cnc. I have installed emc2 via the ubuntu 8.04 disc, and plugged this into my driver board. I have tried to run the test movements to see if it works, but the motors do not turn. I need some advice to get the settings right, so I can make my machine work.
I am making a cnc router (a la diycnc.com). I have 3 x nema 23 motors, a system 4c board and driver boards (from www.diycnc.co.uk).
my step conf settings are as follows:
step time - 10000 ns
step space - 500,000 ns
direction hold - 20,000 ns
direction setup - 20,000 ns
jitter 7272
my pin numbers are as in the supplied manual for the driver board - with two exceptions. The manual asks for pin 15 to be input 5. however I was unable to find an input 5 option, so have this as unused. the manual also calls the inputs input 1, 2 ,3, 4 which i have taken to mean the emc2 digital input 0,1,2,3
I realise this may be incorrect - but it seemed worth a try.
steps per rev are 200
microstepping = 0.25
pitch = 1.95
(am using mm btw)
anyway When I turn the pc on and toggle the estop button on emc2, then all the lights on the driver board light up. When I toggle machine power, home each axis then run the trial, the motors do not spin at all.
any help or ideas would be much appreciated!
thanks
I have recently installed emc2 and need some help getting things configured. I am a noob to emc2, as well as diy cnc. I have installed emc2 via the ubuntu 8.04 disc, and plugged this into my driver board. I have tried to run the test movements to see if it works, but the motors do not turn. I need some advice to get the settings right, so I can make my machine work.
I am making a cnc router (a la diycnc.com). I have 3 x nema 23 motors, a system 4c board and driver boards (from www.diycnc.co.uk).
my step conf settings are as follows:
step time - 10000 ns
step space - 500,000 ns
direction hold - 20,000 ns
direction setup - 20,000 ns
jitter 7272
my pin numbers are as in the supplied manual for the driver board - with two exceptions. The manual asks for pin 15 to be input 5. however I was unable to find an input 5 option, so have this as unused. the manual also calls the inputs input 1, 2 ,3, 4 which i have taken to mean the emc2 digital input 0,1,2,3
I realise this may be incorrect - but it seemed worth a try.
steps per rev are 200
microstepping = 0.25
pitch = 1.95
(am using mm btw)
anyway When I turn the pc on and toggle the estop button on emc2, then all the lights on the driver board light up. When I toggle machine power, home each axis then run the trial, the motors do not spin at all.
any help or ideas would be much appreciated!
thanks
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21 May 2011 13:16 #9969
by BigJohnT
Replied by BigJohnT on topic Re:noob settings questions
Do you have a link to the manual. I assume one is for enabling the drive...
John
John
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21 May 2011 13:30 #9970
by ppope357
Replied by ppope357 on topic Re:noob settings questions
hi
many thanks for the quick response. you can find the manual here
www.diycnc.co.uk/html/system4.html
cheers
many thanks for the quick response. you can find the manual here
www.diycnc.co.uk/html/system4.html
cheers
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21 May 2011 13:49 #9971
by BigJohnT
Replied by BigJohnT on topic Re:noob settings questions
Did you configure or disable the charge pump?
Charge Pump Circuit
The System4C board uses a 12 KHz charge pump signal from the controlling software to operate the
enable line on all four driver circuits. This signal uses pin1 from the parallel port for its input and must
be setup in your software configuration. When the signal is present the red enable light will illuminate
showing that the board is active. If your software does not support this function you may override this
signal with the L1 jumper link making the board permanently enabled.
John
Charge Pump Circuit
The System4C board uses a 12 KHz charge pump signal from the controlling software to operate the
enable line on all four driver circuits. This signal uses pin1 from the parallel port for its input and must
be setup in your software configuration. When the signal is present the red enable light will illuminate
showing that the board is active. If your software does not support this function you may override this
signal with the L1 jumper link making the board permanently enabled.
John
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21 May 2011 13:54 #9972
by ppope357
Replied by ppope357 on topic Re:noob settings questions
Hi
The charge pump is enabled, as in the manual. When I turn the power supply on and toggle power on (in emc2) the light activates.
thanks again for your help - I am very new (and somewhat ignorant) to emc2.
cheers
The charge pump is enabled, as in the manual. When I turn the power supply on and toggle power on (in emc2) the light activates.
thanks again for your help - I am very new (and somewhat ignorant) to emc2.
cheers
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21 May 2011 14:12 #9973
by cncbasher
Replied by cncbasher on topic Re:noob settings questions
sent you a msg
Dave
Dave
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21 May 2011 14:14 #9974
by BigJohnT
Replied by BigJohnT on topic Re:noob settings questions
The inputs are not needed unless you have home or limit switches and can be set to unused.
My next guess is bad parallel cable (some don't have all the pins connected) or step and direction reversed in the config. When you try and jog (try both ways) does the stepper move one step?
John
My next guess is bad parallel cable (some don't have all the pins connected) or step and direction reversed in the config. When you try and jog (try both ways) does the stepper move one step?
John
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24 May 2011 20:16 #10035
by andypugh
Replied by andypugh on topic Re:noob settings questions
I am guessing you are in the UK? If you are anywhere near Essex I could pop round and have a look.
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24 May 2011 20:41 #10038
by ppope357
Replied by ppope357 on topic Re:noob settings questions
Hi
Firstly thanks to all for these responses. Within an hour of posting I was on the phone to an expert who talked me through the step conf settings I needed, and after a bit of soldering I managed to get the motors spinning. This has really reaffirmed my faith in open source software, and also humanity! So thanks again!
My progress is basically I know the motors and driver boards work, and I need to do more testing to make sure the limit switches work etc. I now have a very basic working knowledge of emc and will be building on that. Unfortunately I don't have much spare time, so further testing will have to wait for the weekend. Once I have everything sorted I will post my settings etc.
Thanks again!
Firstly thanks to all for these responses. Within an hour of posting I was on the phone to an expert who talked me through the step conf settings I needed, and after a bit of soldering I managed to get the motors spinning. This has really reaffirmed my faith in open source software, and also humanity! So thanks again!
My progress is basically I know the motors and driver boards work, and I need to do more testing to make sure the limit switches work etc. I now have a very basic working knowledge of emc and will be building on that. Unfortunately I don't have much spare time, so further testing will have to wait for the weekend. Once I have everything sorted I will post my settings etc.
Thanks again!
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