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Rank: Administration
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Joined: 6/28/2008
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Location: Follansbee, WV
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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):
Gosh, you've... really got some nice toys here.-Roy Batty
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Rank: Administration
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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 ProbeDownload the codes for the screen buttons below. File Attachment(s):
 HossProbeCodes.zip (9kb) downloaded 1,200 time(s).
Hoss attached the following image(s):
Gosh, you've... really got some nice toys here.-Roy Batty
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Rank: Administration
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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):
Gosh, you've... really got some nice toys here.-Roy Batty
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Rank: Administration
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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 OutputDownload the HossProbeCodesUpdate.zip.
Gosh, you've... really got some nice toys here.-Roy Batty
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Rank: Newbie
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Location: Rapid City
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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?
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Rank: Administration
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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
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Rank: Administration
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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 716 time(s).
Hossmachine Mach3 Toolchange Screenset.zip (3,056kb) downloaded 1,360 time(s).
Hoss attached the following image(s):
Gosh, you've... really got some nice toys here.-Roy Batty
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Rank: Administration
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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 1,993 time(s).
Hoss attached the following image(s):
Gosh, you've... really got some nice toys here.-Roy Batty
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Rank: Administration
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Joined: 6/28/2008
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Location: Follansbee, WV
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Rank: Newbie
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Joined: 4/17/2009
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Location: Conneaut, OH
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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
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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)
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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
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Rank: Administration
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Location: Follansbee, WV
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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
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Rank: Newbie
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Joined: 8/2/2009
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Location: tucson ,az
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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? thanks 
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Rank: Administration
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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
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Rank: Administration
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Location: Follansbee, WV
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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):
Gosh, you've... really got some nice toys here.-Roy Batty
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Rank: Newbie
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Location: tucson ,az
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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 . 
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Location: Chicago
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Hoss,
Please post the code for the new screens that use the tools as probes.
Thank You
Jeff...
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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.
HossAuto Probing with Tool Diameter Input Part AAuto Probing with Tool Diameter Input Part BAuto ID and OD Probing with Tool Diameter Input and DRO OutputFile Attachment(s):
HossProbeCodesToolDiameter.zip (12kb) downloaded 596 time(s).
Gosh, you've... really got some nice toys here.-Roy Batty
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Rank: Administration
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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 1,186 time(s).
HossProbingToolDiameterScreenset.exe (252kb) downloaded 886 time(s).
Gosh, you've... really got some nice toys here.-Roy Batty
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