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Automatic Tool Probe Options · View
Hoss
Posted: Saturday, November 22, 2008 12:08:32 PM
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Joined: 6/28/2008
Posts: 217
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Location: Follansbee, WV
Spent last week finishing up my new Tool Change screenset for Mach 3.
After seeing an auto edge finding video on cnczone,
I tracked down the original thread and HAD to add it to my page.
It's soo cool.
Thanks, erniebro, Greolt and joecnc2006 for inspiration.
I have a few kinks to work thru, it's only been a few days.
More to learn but so far so good.
I made a custom panel and combined and modified the code for some of the buttons.
It has auto Z axis setting, X and Y axis auto edge finding and auto center finding.
I have a couple proper probes and touch plates to make,
but the video shows testing looks good.
This will make setting all the tools up a breeze.
Back to work.


Hoss attached the following image(s):
tool change page_774x600.jpg
auto tool probing window.jpg



Gosh, you've... really got some nice toys here.-Roy Batty
Hoss
Posted: Saturday, November 22, 2008 12:19:55 PM
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Joined: 6/28/2008
Posts: 217
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Location: Follansbee, WV
CNC makes life easy.
Auto edge finding is the coolest, thanks again to erniebro for inspiration.
I made an isolated probe from 2 pieces of steel with a delrin core and
a touch plate that's a sandwich of steel and delrin.
Ran the wires for the probe inside the cable covers, 1 grounded to the mill and the other to a plug on the head.
I can remove the wire clip now when I'm done.
The probe has a .200 dia. tip and runs out at .0002, more than accurate enough.
I added auto corner finding buttons to my tool change page.
I combined and modified the codes and now can get 1 click auto X, Y and Z finding.
Thinking of some more enhancements to this, stay tuned.
Hoss

Check out the vids.

Auto Z Axis Setting with Touch Plate

Auto Edge and Z Finding with Isolated Probe

Auto Corner Finding with Isolated Probe

Auto Center Finding with Isolated Probe


Download the codes for the screen buttons below.

File Attachment(s):
HossProbeCodes.zip (9kb) downloaded 2,276 time(s).

Hoss attached the following image(s):
IMG_3659_800x600.jpg
IMG_3686_800x600.jpg



Gosh, you've... really got some nice toys here.-Roy Batty
Hoss
Posted: Saturday, November 22, 2008 12:32:51 PM
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Joined: 6/28/2008
Posts: 217
Points: 413
Location: Follansbee, WV
If anyones interested in making their own probing tool, I posted the print below.
Another option is to buy an electronic edge finder and take the battery out,
giving you an accurate isolated probe.
Enco has them for only $20.
Hoss


Hoss attached the following image(s):
tool probe.jpg



Gosh, you've... really got some nice toys here.-Roy Batty
Hoss
Posted: Sunday, November 30, 2008 8:26:39 PM
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Joined: 6/28/2008
Posts: 217
Points: 413
Location: Follansbee, WV
I checked the probe leads with a voltmeter and i'm probably backwards from what it should be,
but I have the +5v lead from the Cnc4pc C10 board attached to the mill base
and pin 10 attached to the isolated probe.
Haven't noticed any irregularities with this setup,
but reading through the original threads, erniebros and greolts,
it seems some others have something different with their BOBs.
I use a .10uF capacitor across both leads because I was getting false triggers
like Greolt and it solved that problem completely.
Read thru the original threads for more ideas because it seems there's more than one way to skin this cat.

I finished editing the scripts to output the part diameter to the DRO and it works pretty well.
Check out the new video.
Diameter Probing with DRO Output


Download the HossProbeCodesUpdate.zip‎.

Gosh, you've... really got some nice toys here.-Roy Batty
bulldog
Posted: Saturday, December 06, 2008 1:24:34 PM
Rank: Newbie
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Joined: 12/6/2008
Posts: 1
Points: 3
Location: Rapid City
Hoss,
I have been trying to get this working all morning and am hoping you can shed some light on your setup.. I too am using the C10 board but any time I try and touch the 5v lead to the mill the led on the board goes out and nothing happens on the contact led. If i just touch the 5v wire to the input wire all is fine. Any suggestions?
Hoss
Posted: Saturday, December 06, 2008 3:04:00 PM
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Points: 413
Location: Follansbee, WV
If checking the active low box doesn't help, you may need to use a pullup resistor
like they discuss here.


Gosh, you've... really got some nice toys here.-Roy Batty
Hoss
Posted: Monday, February 23, 2009 11:19:05 AM
Rank: Administration
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Joined: 6/28/2008
Posts: 217
Points: 413
Location: Follansbee, WV
You can download the Toolchanger Screenset with the Autoprobing codes already installed.
Extract to your Mach 3 folder.
Hoss


02-28-09 Added a zipped version of the screenset.
Hoss

File Attachment(s):
Hossmachine Mach3 Toolchange Screenset.ace (2,764kb) downloaded 1,453 time(s).
Hossmachine Mach3 Toolchange Screenset.zip (3,056kb) downloaded 2,883 time(s).

Hoss attached the following image(s):
hoss tool change screen_775x600.jpg



Gosh, you've... really got some nice toys here.-Roy Batty
Hoss
Posted: Sunday, March 01, 2009 9:47:22 PM
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Joined: 6/28/2008
Posts: 217
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Location: Follansbee, WV
I made a new screenset today for Mach 3 that is the standard 1024 screenset
but with the Offset page expanded to include my Tool Probing buttons and DRO's.
It has the same
Auto Z Setting w/wo Touch Plate
Auto Edge Finding (X and Y)
Auto Corner Finding
Auto Center Finding with DRO Output
Auto OD Finding with DRO Output

You can download the zip below that includes the Hoss1024probing.set screenset,
bitmaps that go in the Mach3/Bitmaps/MillBitmaps folder,
the HossProbeCodesUpdate.zip that contains the text files with the button codes (they are already installed in the screenset)
and the hoss probing screenset.jpg preview.
Hoss

File Attachment(s):
Hossmachine probing screenset.zip (207kb) downloaded 3,760 time(s).

Hoss attached the following image(s):
hoss probing screenset_787x600.jpg



Gosh, you've... really got some nice toys here.-Roy Batty
Hoss
Posted: Saturday, April 04, 2009 3:27:24 PM
Rank: Administration
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Joined: 6/28/2008
Posts: 217
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Location: Follansbee, WV
I found the proper way to hook up the probe to the C10 on Cnc4pc's newest C10 pdf.
Now the Probe is + and the machine is GND.
It uses a 2.2K ohm pull-up resistor jumped between the probe input pin (pin 10 in my case) and the 5V pin next to it.
I still have the .10uF capacitor in parallel with the probe + and - wires for debounce.
I just have it jumped between the plug that connects to the back of the console.
Works great.
Hoss


Hoss attached the following image(s):
c10 probe connections.jpg
tool probe pull up resistor.jpg
tool probe connections_800x600.jpg
input signals probe040209.jpg
probe capacitor_531x600.jpg



Gosh, you've... really got some nice toys here.-Roy Batty
HackMax
Posted: Friday, April 17, 2009 2:01:22 PM
Rank: Newbie
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Joined: 4/17/2009
Posts: 1
Points: 3
Location: Conneaut, OH
Hey Hoss,

My X3 motor control board fried so while I was waiting for the replacement I figured I'd be do some of the other things I've been meaning to do since I have the spare time and one of them was your auto xyz probe. Got it all wired up like you described and electrically the probe works fine. I loaded in your screen set and gave it a shot but it would skip the x test. The z and y run fine so I looked at the code and you have a test condition set to check if the probe is already touching or other grounding.

If GetOemLed (825)=0 Then 'Check to see if the probe is already grounded or faulty
Code "(Probe plate is grounded, check connection and try again)" 'this goes in the status bar if aplicable


This is wrong. The GetOemLed should be <> (not equal) to zero. It is correct in the y movement. I also included an End Sub after the text warning so it wont continue on since the condition will put the xy position in the wrong place.

Just thought you should know. Super job on the screen set and thanks for making things so much easier.

Rick
digger
Posted: Wednesday, April 22, 2009 2:42:24 PM
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Joined: 4/20/2009
Posts: 1
Points: 3
Location: Maysville, GA
Hoss,

Have downloaded the Offsets/Probing screen file and got it working in Mach3 (dry run on PC only); have not tried to run on machine yet. Couple of questions: 1) Assume "plate thickness" is for Z auto zero. I now use a Z auto zero routine with a plate I made from a printed circuit board. Is this value used only for Z zeroing? 2) No expert on code and trying to understand the X and Y code. Is the code "hard coded" for a 0.2" dia. probe?

Doug (digger)
Hoss
Posted: Thursday, April 23, 2009 11:31:26 AM
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Location: Follansbee, WV
Rick,
thanks for the heads up.
I remember something about that in one of the original threads(I'll have to look thru them again)
I think I had the opposite though and had to change to = to get mine to work.
Hasn't been a problem with mine.
I'll have to look into again to m ake sure.
Hoss

Gosh, you've... really got some nice toys here.-Roy Batty
Hoss
Posted: Thursday, April 23, 2009 11:43:27 AM
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Location: Follansbee, WV
Doug,
plate thickness is only for auto Z.
The probe diameter can be edited for whatever you want.
In the X- button code for example, the code line is

Code "G91 X-.100"

change the .100 to the radius of whatever tool you want.
.500 diameter tool, use .250.
There is similar code for the Y buttons and the corner buttons.
Hoss

Gosh, you've... really got some nice toys here.-Roy Batty
woffler
Posted: Sunday, August 02, 2009 1:59:43 PM
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Joined: 8/2/2009
Posts: 4
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Location: tucson ,az
Hi everyone great forum i downloaded the zip file unzipped into mill bit map folder and i get the tab button with offsets and probe but when i get there there all the buttons are missing ? any one have a idea what the problem might be? thankswall head bang
Hoss
Posted: Sunday, August 02, 2009 2:48:28 PM
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Location: Follansbee, WV
Hey Woffler,
make sure the files in the .zips Millbitmaps folder are copied to the Mach 3 Millbitmaps folder and not into a subfolder.
Should be copied to C:\Mach3\Bitmaps\MillBitmaps and not C:\Mach3\Bitmaps\MillBitmaps\MillBitmaps
Hoss

Gosh, you've... really got some nice toys here.-Roy Batty
Hoss
Posted: Sunday, August 02, 2009 2:51:02 PM
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Joined: 6/28/2008
Posts: 217
Points: 413
Location: Follansbee, WV
I had an email question from someone that wanted to use any of their tools as a tool probe.
They have the part isolated and wanted to be able to find the edge no matter which tool is in spindle not just with a dedicated tool probe.
I edited the codes for my buttons so that it will compensate for the tool diameter that is reported in the tool table.
You can input the diameter yourself if you wish.
The auto corner and auto edge finding buttons were changed.
A vice could be isolated from the table and clamps with some thin delrin or HDPE sheet, etc.
I'll post the codes tomorrow after I double check them on the mill, I just used the PC to simulate for this video.
Hoss


Hoss attached the following image(s):
tool probe diameter_800x597.jpg



Gosh, you've... really got some nice toys here.-Roy Batty
woffler
Posted: Monday, August 03, 2009 8:34:19 PM
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Joined: 8/2/2009
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Location: tucson ,az
Thanks Hoss i finally got it going i just dragged each one end by hand it works great !!!!! Thanks so much for the plans and the help .cheers
jalessi
Posted: Tuesday, August 04, 2009 8:40:52 AM
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Joined: 8/4/2009
Posts: 1
Points: 3
Location: Chicago
Hoss,

Please post the code for the new screens that use the tools as probes.

Thank You

Jeff...
Hoss
Posted: Tuesday, August 04, 2009 10:42:22 AM
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Joined: 6/28/2008
Posts: 217
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Location: Follansbee, WV
The codes have all been checked on my mill and are good to go.
You can now use any diameter tool you want for the probe just by entering the dia. in the DRO.
The videos show my tests using the trunnion table isolated from the rest of the mill.
Only took some thin sheets of plastic.
Hoss


Auto Probing with Tool Diameter Input Part A

Auto Probing with Tool Diameter Input Part B

Auto ID and OD Probing with Tool Diameter Input and DRO Output

File Attachment(s):
HossProbeCodesToolDiameter.zip (12kb) downloaded 1,157 time(s).




Gosh, you've... really got some nice toys here.-Roy Batty
Hoss
Posted: Saturday, August 08, 2009 1:44:56 AM
Rank: Administration
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Joined: 6/28/2008
Posts: 217
Points: 413
Location: Follansbee, WV
I added all the new codes for probing with tool diameters to my Probing Screenset.
You can download the zip or the self extracting exe.
This video gives installation instructions.
Hoss

File Attachment(s):
HossProbingToolDiameterScreenset.zip (118kb) downloaded 2,305 time(s).
HossProbingToolDiameterScreenset.exe (252kb) downloaded 1,845 time(s).




Gosh, you've... really got some nice toys here.-Roy Batty
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