Messages

5871

General Mach Discussion / Re: THC300/Mach3 Touch off issue

« on: May 09, 2011, 10:25:39 PM »

You need to figure out the input problem .IF it worked with Zhome it should work with the probe. Double check your Port/pin settings, make sure the probe input is checked active.

Are you in demo mode with MACH??

(;-)TP

5872

General Mach Discussion / Re: THC300/Mach3 Touch off issue

« on: May 09, 2011, 10:07:28 PM »

I am using the same Sheetcam software and there is nothing wrong with it. (;-)

Where are you setting the setback? it is set inside the Post you have to use edit to set it.

The feedreates are set in the tool settings for the selected tool.

The probe sets up with the same port/pin you used on the Zhome. You turn OFF Z home. Then turn ON the probe. When you click the switch you should see the input for the probe light up as you did the Zhome . You should NOT see the Zhome light up any more.

What post are you using ??

(;-) TP

5873

General Mach Discussion / Re: 5 axis kinematics and coordinate transformation

« on: May 09, 2011, 08:48:42 PM »

Sorry but Mach does not do kinematics so it cannot Jog in world mode( Tooltip mode)  All kinematics MUST be accounted for by the CAM software for running the gcode side.

(;-) TP

5874

General Mach Discussion / Re: THC300/Mach3 Touch off issue

« on: May 09, 2011, 08:33:55 PM »

If you are going to use the G31 you MUST set up your Zhome switch as a probe and setup the port/pin for the probe.

Also your setbacks are not set for the pull back on the head after it homes.  You must test your setup to determine the proper pullback to account for switch movement and flexure of the material. If you have to keep adjusting the allowance until it IS what it say it is.



I would slow down the plunge rate untill you get used to  the process it is very easy to tear the head off if you get it hung up.

IF the post says 0 feedrate then you need to reset it to the correct speeds.

ALSO your code show the Kerf width as .0008  (;-) You need to set it to the correct amount , normally around .060-.080" works here.

That should get you started, (;-) TP

5875

General Mach Discussion / Re: THC300/Mach3 Touch off issue

« on: May 09, 2011, 06:47:04 PM »

Question,  If you set your Z to zero then from the MDI issue a G1 Z-1.000 F5, which way does the head go Up or down?

Just a thought, (;-) TP

5876

General Mach Discussion / Re: THC300/Mach3 Touch off issue

« on: May 09, 2011, 06:42:15 PM »

Open the code in notepad Copy a section of code then paste it into the reply window.

I would get it working with the zhome then when it is working ok switch IF you want.  Here it works equally well either way.  Six of one half a dozen of the other.

(;-) TP

5877

General Mach Discussion / Re: THC300/Mach3 Touch off issue

« on: May 09, 2011, 06:27:10 PM »

Can you post a short section of your code that shows the HomeZ routine?

It sounds like you have problems with the Zhome switch sticking. Double check the function in the diagnostic page. Watch the Zhome led and trip the switch by hand. See that it changes state. Next make sure the state is what you need in your setup.

(;-) TP

5878

General Mach Discussion / Re: Fixture Save

« on: May 08, 2011, 08:52:00 PM »

It is asking IF you want to save your current fixture location.

You can turn this off in Gen Config.

(;-) TP

5879

General Mach Discussion / Re: Slowdown limit

« on: May 08, 2011, 08:34:04 PM »

This is the macro code to monitor the Z slowdown switch. First you set up your inoput in mach (turn on ,set port/pin)

Then place this code inside the Macropump.  It monitors the switch and IF it goes avtive setsets the RefSpeed if it is not active it reset the ref speed back to normal.


If  Isactive(input1) Then        ' Monitor input 1  IF the input goes active then

DoOemButton(1001)                'Feedhold
While IsMoving
Wend                             'Wait until it stops

DoOemButton(1003)                'Stop

Setparam( "Zrefper",25)         ' Set Ref speed to ()% of rapid
 
DoOemButton(1024)                'Restart Zref

Else

SetParam("Zrefper",50)           'IF the input does not go active then set Ref speed to 50% of rapid
End If


NOW as Hood mentioned you SHOULD be very conservative of your homing speeds with the Z as NOT to overrun the switch too far. The slowdown is a backup NOT a reason to overspeed the Zref function. Heck you only have 5" of travel anyway whats the hurry.

Hope that helps, (;-) TP

5880

MACH TOOL BOX / Re: SubRoutine : Engraving Leters

« on: May 08, 2011, 11:48:45 AM »

WOOPS sorry about that here it is.