Tom,

Do I need to do anything special with my homing C program to account for the slave stepper on my Y axis? I currently use the attached code. Since my Init program defined Ch2 as a slave will my homing program running on another thread know that there is a slave? Figured I'd ask before I try it and break something.

Jack

Hi Jack,

You might see the HomeSlaved.c example.

Regards
TK

On 4/15/2016 7:59 AM, jackgiz@... [DynoMotion] wrote:

Tom,

Do I need to do anything special with my homing C program to account for the slave stepper on my Y axis? I currently use the attached code. Since my Init program defined Ch2 as a slave will my homing program running on another thread know that there is a slave? Figured I'd ask before I try it and break something.

Jack

Jack
I have a couple sample home files from slaved [twin screw machines]
although there are many sharper learned members here[ somewhere]
I'll be glad to share or help you along as best I can.
PM me if you like
Carl

Thanks Carl. I used the homeslave program Tom mentioned and modified it for my machine. I won’t be home until tonight and I’ll give it a try. If it doesn’t work I’ll give you a shout. I do have one other question, I’ve got a button on my KmotionCNC screen that returns all of the axis to 0,0,0. I’m currently using:

Move(1,2400); // move Y to fixture zero

Will this work for my slaved Y on channel 2 or do I need to command both steppers? Something like:

Move(1,2400); // move Y master to fixture zero

Move(2,2400); // move Y Slave to fixture zero

Jack

From: DynoMotion@yahoogroups.com [mailto:DynoMotion@yahoogroups.com]
Sent: Saturday, April 16, 2016 10:57 PM
To: DynoMotion@yahoogroups.com
Subject: [DynoMotion] Re: Homing with Master/Slave

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Jack
when you are homing[squaring] a slaved/dual drive the motors need to NOT be slaved until
both motors have hit and moved off the switch.
they need to be independent until then or you will chase your tail wondering why you get random
distances and no squaring reliability
contact me later by my yahoo email
wiling to do this off group , if I can help
Carl

Group: DynoMotion	Message: 13145	From: jackgiz@ymail.com	Date: 4/15/2016
Subject: Homing with Master/Slave

Group: DynoMotion	Message: 13146	From: Tom Kerekes	Date: 4/15/2016
Subject: Re: Homing with Master/Slave [1 Attachment]

Group: DynoMotion	Message: 13149	From: carlcnc	Date: 4/16/2016
Subject: Re: Homing with Master/Slave

Group: DynoMotion	Message: 13150	From: Jack	Date: 4/17/2016
Subject: Re: Homing with Master/Slave

Group: DynoMotion	Message: 13154	From: carlcnc	Date: 4/17/2016
Subject: Re: Homing with Master/Slave