Trying to configure XYZU 4 axis setup.

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20 Aug 2012 20:55 - 20 Aug 2012 20:57 #23436 by BigJohnT
You have the line that sends the position commands to stepgen.3 commented out so stepgen.3 does nothing.

And thanks for zipping them up it makes the posts easier to follow when files are attached instead of pasted.

John
Last edit: 20 Aug 2012 20:57 by BigJohnT.

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20 Aug 2012 21:28 #23437 by Gadget047
when I uncomment that line I get a start up error 'stepgen.6.position-fb' does not exist

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20 Aug 2012 21:32 - 20 Aug 2012 21:34 #23438 by BigJohnT
Should be stepgen.3.position-fb, you have an axis 6 but only 0-4 stepgens.

Are you sure that was the error?

John
Last edit: 20 Aug 2012 21:34 by BigJohnT.

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20 Aug 2012 21:38 - 20 Aug 2012 21:39 #23439 by Gadget047
Here's the screenshot of the error

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File Name: Screenshot...rors.zip
File Size:45 KB
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Last edit: 20 Aug 2012 21:39 by Gadget047.

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20 Aug 2012 21:39 #23440 by BigJohnT
This is the error I get.

test_3D-Printer.hal:93: Pin 'axis.6.motor-pos-cmd' was already linked to signal 'upos-cmd'

John

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20 Aug 2012 21:42 #23441 by Gadget047
"When I change the line to this net upos-fb stepgen.3.position-fb => axis.6.motor-pos-fb EMC opens but I get a joint 6 following error

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20 Aug 2012 21:46 #23442 by Gadget047
Am I changing the wrong line? I don't get that error

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20 Aug 2012 21:47 - 20 Aug 2012 21:49 #23443 by BigJohnT
You have several errors so quicker for me to just fix them. Also as mentioned before your velocity and acceleration for axis U is much higher than a parallel port can muster so you get following errors. When I slow down the jog speed I have no problems jogging U.

File Attachment:

File Name: test_3D_Printer.hal
File Size:3 KB


John
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Last edit: 20 Aug 2012 21:49 by BigJohnT.

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20 Aug 2012 21:58 #23444 by Gadget047
I have movement but got the joint error on 6 probably due to the acceleration. Do I need to change this in the stepconf file or somewhere in the ini or hal file. what are good settings to start out with?

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20 Aug 2012 22:04 #23446 by andypugh
Gadget047 wrote:

I have movement but got the joint error on 6 probably due to the acceleration. Do I need to change this in the stepconf file or somewhere in the ini or hal file. what are good settings to start out with?


From now on, ignore Stepconf. You have made changes that will be over-writtten by it.

Having said that, the best way to find the velocity and accel limits of the axis is with Stepconf, so create a new, throwaway, config driving you U p-port pins as X and use the "Test this axis" button to figure out the limits.

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