Messages

3271

G-Code, CAD, and CAM discussions / Re: Floating head auto-zero set-up confusion. Please, somebody, help me!

« on: January 06, 2013, 12:21:13 PM »

FIrst you need to use a POST that was made for a floating head plasma.

IF you use teh G28.1 method then use a post for a MP1000

If you use the G31 method then use a post for a THC300

Then open the post for edit and look for

RefDistance=         Then set the value to 1

Switchoffset=        the amount of switch travel your head has.


THat should get you going. You may have to juggle the switch value to get it right for your machine.

(;-) TP

3272

G-Code, CAD, and CAM discussions / Re: Help my with > #1 = Z2.000

« on: January 06, 2013, 12:06:01 PM »

First nowhere did you define the starting values of #2 or #1

#2= 1 (for example)

AND the #2=#2-0.1 should read as

#2=[#2-0.1]

Lastly you need to add % after you M99 to insure you have an added line or (carrage return) after the M99

Just a thought, (;-) TP

3273

General Mach Discussion / Re: How to split gcode into 2 parts or more..

« on: January 06, 2013, 02:02:39 AM »

Those are questions to ask YOUR cam software people. 
'
(;-) TP

3274

General Mach Discussion / Re: BT30 spindle from scratch - with power drawbar and ATC of course

« on: January 06, 2013, 12:07:56 AM »

Don't want to use air (;-) Use a power steering pump to drive your hydraulics. Low cost self contained reservoir drive it with a small electric motor at a lower RPM.

(;-) TP

3275

General Mach Discussion / Re: BT30 spindle from scratch - with power drawbar and ATC of course

« on: January 05, 2013, 11:58:51 PM »

A simple Air/Hydraulic unit consists of a reservoir of oil with air pressure feeding in the top and oil flowing out the bottom.  I use an Air solenoid to charge the Reservoir when flow is needed. Control the feedrate from the oil side with an orifice or needle valve.  Great for simple single side cylinder charging and spring return OR you can use a double side double feed valve to do double side cylinder control.

This works WELL for low pressure applications such as this.

You can also do the Charge cyylinder trick with air pressure and a closed loop for the Oil side. Single or double acting as well.

There are many low cost ways

Just a thought, (;-) TP

3276

General Mach Discussion / Re: sub routines and/or macro calls

« on: January 05, 2013, 11:12:08 PM »

OK Here is a macro that should do the trick. You have to program the macro at load time with the use of #vars

#1 = X width of part
#2= Y width of part
#3= Probing Feedrate

You call it as

M175 #1=2 #2=2 #3=50

With that it assumes the part is 2X2 and the Probing feedrate = 50

You place the Probe at the approx center of the part then call the macro. It probes down and finds the Top of Material. Then moves over to X positive and probes for the right side of the part, then Moves back away from the part and  UP and across the part to the opposite side. It then Probes the Left side of the part. Then moves back away from the part and UP. It then moves to the center distance between the 2 sides.

It repeats the same sequences for Y axis  and ends at the center of the X and Y.


AS the standard disclaimer  for probing with macros Your mileage may vary as to how it reacts to your system.  TRY it in the air above the part BEFORE you commit it to actually probing.

IF it crashes your PROBE sorry about that BUT no guaranties. The motion works here and the math works here , BUT (;-)

(;-) TP




'Macro Center of Part

Xwide = GetVar(1)
Ywide = Getvar(2)
Frate = GetVar(3)

If  Xwide = 0  Or Ywide = 0 Or Frate = 0 Then
MsgBox" Mcode  Params not stated, Retry"
End
End If

SetVar(100,Frate)

'Move close to center of part
'Z Probe

Code"F#100"
Code"G31 Z-2"
While Ismoving()
Wend
Code"G92 Z0"
Code"G1 Z.010"
Code"G92 Z0"
While Ismoving()
Wend
Ztop = GetDro(2)
Code"G0Z.5"

' X Probe

Code"G0 X" & (.5 * (Xwide +1))
Code"Z-.5"
Code"G31 X0"
While Ismoving()
Wend
SetVar(101,GetVar(2000))

Code"G0 G91 X1"
Code"G90"
Code"Z.5"
Code"G0 X"&(-1* (.5 * (Xwide +1)))
Code"G0 Z-.5"
Code"G31 X0"
While Ismoving()
Wend
SetVar(102,GetVar(2000))

Code"G0 G91 X-1"
Code"G90"

X1= GetVar(101)
X2= Abs (GetVar(102))
Xcenter = ((X1+X2) /2)
'MsgBox"" &Xcenter

Code"G0 G91 X" & (Xcenter +1)
Code"G90"

'Y Probe

Code"G0 Y" & (.5 * (Xwide +1))
Code"Z-.5"
Code"G31 Y0"
While Ismoving()
Wend
SetVar(201,GetVar(2001))

Code"G0 G91 Y1"
Code"G90"
Code"Z.5"
Code"G0 Y"&(-1* (.5 * (Xwide +1)))
Code"G0 Z-.5"
Code"G31 Y0"
While Ismoving()
Wend
SetVar(202,GetVar(2001))

Code"G0 G91 Y-1"
Code"G90"

Y1= GetVar(201)
Y2= Abs (GetVar(202))
Ycenter = ((Y1+Y2) /2)
'MsgBox"" &Ycenter
Code"G0 G91 Y" & (Ycenter +1)
Code"G90"

Message" Probe at CENTER of MATERIAL"

Code" G92 X0.0000 Y0.0000"
Code" G1 Z" & Ztop
Message " Probe at X0 Y0 Z0 of Part Origin"
Code"#1=0 #2=0 #3=0"
End

3277

General Mach Discussion / Probing Wizard

« on: January 05, 2013, 06:09:11 PM »

Cleaning up some old macros and making a new Probing wizard.

(;-) TP

3278

General Mach Discussion / Re: sub routines and/or macro calls

« on: January 05, 2013, 12:52:50 PM »

You may want to check in the MachToolBox section.

If nothing there suits you check back with a description of what you want it to do.

(;-) TP

3279

Tangent Corner / Re: Wireless USB Modem

« on: January 05, 2013, 12:29:09 PM »

I think I would wait until spring, those leaves could ruin the whole show then you are stuck with a 2 year contract. OR ask for a contract provision that allows you an OUT after spring due to performance issues.

Just a thought.  (;-) TP

3280

General Mach Discussion / Re: Rotary axis position issue

« on: January 05, 2013, 12:07:17 AM »

Uncheck the Rot 360 rollover. I think a bug creeped in.

(;-) TP