gantry mode issue

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4 years 4 months ago #244472 by tommylight
Replied by tommylight on topic gantry mode issue
How is the tandem axis set up?
does the machine have separate home switches for both tandem joints?
Upload the hal and ini file here, the new ones.

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4 years 4 months ago #244529 by Kasper-001
Replied by Kasper-001 on topic gantry mode issue
i have no sensors connect yet, maybe thats why  im waiting for them to arrive i my mailbox,
here is my hal and ini

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4 years 4 months ago #244541 by tommylight
Replied by tommylight on topic gantry mode issue
Tandem joint do not work without sensors, although "immediate homing" might work, i just never tried it.
linuxcnc.org/docs/html/config/ini-homing.html#_immediate_homing

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4 years 4 months ago #244825 by andypugh
Replied by andypugh on topic gantry mode issue

is there a way to lock y1 y2 before homing , so they can´t move individual and damage the machine in jog mode before homing? 
Are you talking about keyboard jogging, MPG jogging or some other jogging? 

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4 years 4 months ago #244950 by Kasper-001
Replied by Kasper-001 on topic gantry mode issue
i have got it to work now, image missing /media/kunena/emoticons/smile.png

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4 years 1 month ago #252452 by Ingo
Replied by Ingo on topic gantry mode issue
Hello friends, I'm building a machine like this now.  I'm using version 2.9 with Gmoccapy created in pnconfig (XYYZ).  I tested the immediate home and it works perfectly, and I tested it with limit switches (not sensors) putting the sequence from home to Y at -2 for both joints and the machine does not move before home, it generates a message.  Now I have two questions too, one how do I use a limit switch for each joint?  (Because I tested it and I couldn't make it synchronize, the first joint that arrives already wants to come back and the second one going is still due to mechanical effort and generates an over load alarm in the drives) (my next reference sequence: the machine moves towards the key in programmed rapid advance, returns about 5mm and advances slowly until it touches the key).  My machine uses linear guides and ball screws, very rigid machine and any wrong movement of the joints generates alarm.  Another problem with precision in the machine and as it has 2 meters on the X axis, any wrong movement it is far outside the X-Y square.  The second question, is there any way to adjust the offset (similar to backlash) of the two separate Y joints to fine-tune the squareness between the X-Y axes?

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