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Author Topic: HOME should zero the Z axis before the X&Y axis  (Read 9719 times)

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HOME should zero the Z axis before the X&Y axis
« on: February 15, 2011, 09:12:57 PM »
I think it might be a good thing to have the Z Axis zero (home) before the X&Y axis move when the Go To Zero button is pressed. It is possible to use the G28.1Z0 followed by G28.1X0Y0 but it would be more convenient if the Go To Zero behaved similarly so the Z tool doesn't try to rip through the work on the way home.

Offline ger21

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Re: HOME should zero the Z axis before the X&Y axis
« Reply #1 on: February 16, 2011, 07:45:21 AM »
If you turn on SafeZ, the Z will move first. If you don't want to use SafeZ, you can just use VB for the GotoZ button to do what you want.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: HOME should zero the Z axis before the X&Y axis
« Reply #2 on: February 16, 2011, 12:45:13 PM »
Sounds good. I believe that I *did* have Safe-Z turned on, however perhaps not understanding *what* Safe-Z is meant for, I had it set to not go LOWER than the table. I thought that I was using it to keep the cutter from carving up my nice cast iron but now I understand that it is to set where the Z Axis will go when the stop or Go To Zero buttons are pressed.

Thanks ever so much!

Works just as I envisioned!

Re: HOME should zero the Z axis before the X&Y axis
« Reply #3 on: March 27, 2011, 02:15:56 AM »
I hear that. if XY moves before Z, then SNAP. There goes your drill bit. It would be a great feature for added protection, to make sure Z is lifted first before XY are allowed to move. Maybe you can change the code to move  manually.

Offline ger21

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Re: HOME should zero the Z axis before the X&Y axis
« Reply #4 on: March 27, 2011, 07:43:00 AM »
Again, if you turn on Safe Z, Z does move first.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: HOME should zero the Z axis before the X&Y axis
« Reply #5 on: March 27, 2011, 10:04:56 AM »
Yes, I can confirm that you *do* "HEAR" it!  <grin>

I buy my bits by the 10-pack!
Re: HOME should zero the Z axis before the X&Y axis
« Reply #6 on: March 27, 2011, 11:52:39 PM »
Lucky me, I get to blame it on the A! I can't get Z to work so if I snap a bit, I'll blame it on the A.

Except, I won't be using drill bits for my machine, I'll be using a diamond and sapphire cutting stylus.
If I snap those, I will beat myself in the head.

Offline Arbo

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Re: HOME should zero the Z axis before the X&Y axis
« Reply #7 on: April 23, 2011, 04:28:09 PM »
I thought the 'home all'  was just a vb script, so you should be able to just edit that button script and reverse the order it homes.  Correct?

Just checked the default screen, and yes, if you hit 'edit button script' then select the ref all home button you will get the script that runs it.  Just look up which code is for which axis and alter the script.

Offline ger21

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Re: HOME should zero the Z axis before the X&Y axis
« Reply #8 on: April 23, 2011, 08:14:11 PM »
I thought the 'home all'  was just a vb script, so you should be able to just edit that button script and reverse the order it homes.  Correct?


Correct, but the original post was actually talking about GoTo Zero, not homing.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: HOME should zero the Z axis before the X&Y axis
« Reply #9 on: April 24, 2011, 12:00:48 AM »
I'm thinking home all would move all axes at the same time. You'd probably be best to hand code moving Z first