Z Axis Plunging too Deep into part < part zero, tool offsets, turns ratio >

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martyscncgarage
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Re: Z Axis Plunging too Deep into part

Post by martyscncgarage »

milling wrote: Tue Jan 05, 2021 9:20 pm I was using home ref. I thought you said earlier to go back to z ref? So should I go back in and change parameter 3 to 2 and then redo my tools again? Sounds like I was doing that part right before then- correct?
The last report you posted showed that you had Parameter 3 set to 2. Uses Z Home as your Z reference. (this is why its important to always post a fresh report)

Per Marc to set it this way:
Make sure Parameter 3 is set to 0
Shut down your machine
Home your machine
Now go into the Tool Offset page
F1 Setup, F2 Tool, F1 Offset
Press F1 Zref, Press F10 Set Z Ref Here

Now go to parameters
Change Parameter 3 to 2, Press F10 to SAVE

Make sure you have your tool library setup
Then set offset for say Tools 1, 2, 3 PER THE VIDEO. (using the 2" side of the 1-2-3 block like Keith does in the video)
(You will note now in the Tool Offset Screen it says Z Ref Fixed Home)

Then put your part in the vise
Put Tool #1 in the spindle (each tool are in their own holder right??)
Then set your X/Y reference point F1 Setup F1 part Set X F10, then F1 Next Axis, Set Y, F10
Now set Z, F1 (You should be in the Z axis screen)
Then come down to the top of the 2" side of the 1-2-3 block resting on top of your part. Incrementally jog down until the tool just touches the block.
You then enter the part position value of 2.0". enter tool #1 and then press F10 set.
Your DRO for Z should now show 2.0 (the tip of the tool is 2" from the top of the part) and the tool number displayed should be Tool 1
Now tools 2, 3 are automatically now set to the top of your part.

Test it out.
Go into MDI and do an M06 T02 G43 H02 Cycle start
Change to tool 2
Now the display should show T02 H02 (Tool 2 height offset 2)
Jog down tool 2 to just above the top of the part or drag a piece of paper between tool 2 and the top of your part.
Does the DRO for Z show 0? (or very close to it?)

Marty

(Marc, double check me! :) )
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
martyscncgarage
Posts: 9914
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Re: Z Axis Plunging too Deep into part

Post by martyscncgarage »

Sorry, for the delay. I got caught on a phone call and couldn't edit my post quickly enough so I deleted it and redid it....
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
milling
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Re: Z Axis Plunging too Deep into part

Post by milling »

Thanks Marty I will give this a try.
milling
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Re: Z Axis Plunging too Deep into part

Post by milling »

yes each tool is in their own holder
milling
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Re: Z Axis Plunging too Deep into part

Post by milling »

when i did the first part and did the z-ref it used the z valvue from the wcs? Should'nt it use the zeroed machine coordinates?
milling
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Re: Z Axis Plunging too Deep into part

Post by milling »

when i run the program and the spindle goes to home it still falls short of the switch??
milling
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Re: Z Axis Plunging too Deep into part

Post by milling »

Any reason why z-ref # comes from the WCS? Shouldnt it come from the machine coordinates. Also, shouldnt all tools be set to the 123 block on the x axis table. Does not make sense that I would set it to the work piece as that will change but the table will never change. When I machine a part then I understand that you would use any tool within the library to touch off on the workpiece.
cncsnw
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Re: Z Axis Plunging too Deep into part

Post by cncsnw »

milling wrote:when i run the program and the spindle goes to home it still falls short of the switch??
Is that a question, or a statement?
milling
Posts: 58
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Re: Z Axis Plunging too Deep into part

Post by milling »

no that is a statement. Im saying that when I run a program to mill a part the z-axis I thought was supposed to go to the home position for a tool change, but its stopping short of the home micro switch- and it appears to me this is why my tools are plunging into the material becasue it thinks it went home and everything is reference from the home position.
milling
Posts: 58
Joined: Mon Dec 14, 2020 5:41 pm
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Re: Z Axis Plunging too Deep into part

Post by milling »

Just not sure why its falling short of the home switch?
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