What is the best way to find the center of a part using an edge finder

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Fredsan
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What is the best way to find the center of a part using an edge finder

Post by Fredsan »

While reading the manual I did not find a example how to find the center of a part.

I found an old topic describing a possible solution by using macro's

viewtopic.php?f=20&t=575&p=2653&hilit=edge+finder#p2653

but I wonder if there is already an easier way to do this.
cnckeith
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Re: What is the best way to find the center of a part using an edge finder

Post by cnckeith »

hello. are you talking about a CNC touch Probe or a Manual edge finder?
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Fredsan
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Re: What is the best way to find the center of a part using an edge finder

Post by Fredsan »

I am using a manual Haimer 3D taster.
cnckeith
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Re: What is the best way to find the center of a part using an edge finder

Post by cnckeith »

Use the part setup menu to set part zeros.
set a zero on any side of the part, go to the other side of the part and touch that edge, look at the DRO (Digital Read Out) value that is the width of the part in that axis. to find the center, divide by 2.

if you had a touch probe wired into the Acorn board there is an automatic probing cycle called "web" this automatically finds the center of a web (your part), there is also a "slot" probing cycle that will find the center of a slot.
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
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tblough
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Re: What is the best way to find the center of a part using an edge finder

Post by tblough »

Keith,

I actually submitted a enhancement request a few years ago about this. Would it be possible to have the axis set value box pop up with half the axis value already preset? Since most of our axis setting is either setting 0 or a midpoint, it's easier to change the value to 0 than to grab the calculator and figure out half the axis reading and then type that in.

Cheers,


Tom
Cheers,

Tom
Confidence is the feeling you have before you fully understand the situation.
I have CDO. It's like OCD, but the letters are where they should be.
cnckeith
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Re: What is the best way to find the center of a part using an edge finder

Post by cnckeith »

you don't need a calculator.. just type in the value of the dro in the part setup screen with the math right in the line.
its quite simple really.
part middle.JPG
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
tblough
Posts: 3072
Joined: Tue Mar 22, 2016 10:03 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
CNC Control System Serial Number: 100505
100327
102696
103432
7804732B977B-0624192192
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Boston, MA
Contact:

Re: What is the best way to find the center of a part using an edge finder

Post by tblough »

Keith,

That's great about using math in the inputs. Can that be added to the AUX key one-shots for Input X/Y/Z axis positions? Also, would it be possible to have it use something like "@" to be an alias for the current axis position? That would prevent us dyslexics from mistyping the numbers.

Thanks,


Tom
Cheers,

Tom
Confidence is the feeling you have before you fully understand the situation.
I have CDO. It's like OCD, but the letters are where they should be.
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