Tool setting probe

[JFettig]

Hey, I built me a tool setting probe, although I dont know how I will configure mach2 to use it.
What I want it to do is have the tool jog down at like 10ipm untill it hits it, apply offset and height of the probe and rapid up to machine zero for tool change.

What I am planning on doing is hooking up the one wire to the input and go from the gnd on the input to the chassis so as soon as the end mill touches it will set it.

Now, how do I go about doing this?

Thanks,
Jon

[JFettig]

I found it, its OEM 146, I took a look at the screen editor and it fixed that for me.

-edit- the probe turned out to suck, Im going to redesign and make a new one, I must not have been thinking too hard when I designed this one, oh well. on to the next design.

Jon

[RotarySMP]

Hi jon,

What sort of switch are you using in there?

[JFettig]

Im not using a switch at all, simply the contact of the tool to the peice switches it. Its spring loaded becuase the tool doesnt stop when it hits.

Ill be making another one sometime soon hopefully that will be a little more acurate.

Jon

[Barker806]

Originally Posted by JFettig Now, how do I go about doing this? Thanks, Jon

Jon I have the code to run the tool setter with floating tool offsets. If you like I can post it and you can modify it as you see fit.
Brian

[JFettig]

That could be nice, I dont have a working tool setter right now, that last one was a complete failure. I did get it to set the tool when it touched it but it would keep pushing it down untill I stopped jogging into it.
sometime soon(hopefully) Ill be working on a new tool probe.

Jon

[tjstraz]

Jon,

Did you have a ground attached to the spindle to complete the circuit?

I see in the picture you attached that you have a wire connected to the tool setter, but it sounds like you are not completing the circuit.

I have a similar setup on my router. It is just a piece of 1/8" aluminum that I have connected to my break-out board input and then another wire attached to the router spindle for the ground. I have a "set tool" button in Mach 2 performs the tool setting function.

Tim

[JFettig]

Its attached to ground inside the controll box, it does complete the circut, I didnt think about the design quite as hard as I shoudl have when I made it. it works minus the extreme lack of repeatability

Jon

[Barker806]

Here is the code I did for a presetter


if IsSuchSignal (22) Then
Fixture_Num = GetOEMDRO(46)
Call SetOEMDRO (46, 202) 'Set to fixture number 202
Code "G00 G53 Z00." 'Height to move into probe pos
'Code "G53 X0. Y0." 'Move into Probe Pos ***EDIT HERE***
Tool_Number = GetDRO(24)
code "G91 g31 z-4. f10"
While IsMoving()
Wend
If Tool_Number = 0 Then 'Master tool Cal
z = GetOEMDRO(85) 'get Machine ZPos
Call SetOEMDRO(49,z) 'Set fixture offset
Else
Call SetDRO(24,0) 'Turn off the tool offset by loading tool #0
Height = GetDRO(2) 'Get the pos of the Z axis without the Tool comp on
Call SetDRO(24,Tool_Number) 'Turn the tool Back on so the offset will go to the
Call SetoemDRO(42,Height) 'Set the Tool Height offset
End if
Call SetOEMDRO(46,Fixture_Num) 'Set the Fixture back to what it was
code "G91 G0 Z0.25"
code "G90"
While IsMoving()
Wend
end if

I hope that will help someone...

[kong]

Any chance of a brief explanation on the code please Barker? Thanks!

[pauls]

Aaron Moss of Industrial Hobbies has a nice probe on his site. He's missing the wiring diagram which had previously been on site. He has a nice explanation of setting tool heights under "automatic tool changer:.
Paul

[kong]

Paul, unless I misunderstand it, Jon was trying to get Mach2 to measure the offsets on the fly, without the use of a tool table. i don't see this anywhere on industrial hobbies web site, just the regular tool table offsets.