Messages

2711

General Mach Discussion / Re: using variables

« on: July 13, 2013, 10:12:12 AM »

HIYA Gary, Yes the #vars have full math functions, see the Mach3 manual for details.

To create a -#var  

If #100 equates to 10 BUT you need to move in a neg direction

X -#100

You Would

X= [-1*#100] or
X=[0-#100]

You can always use a neg number IF the "value" is already neg

#100 =-10      Works fine

SUBS, now that is not one of MAch3 strong points. IF kept simple and not deeply nested they work OK.

With your example with drilling holes the use of a #var for depth has not saved you any steps. You still have to declare the variable so you might a s well just use the real number. Actually it is LESS steps to just declare the value because you do not have to declare the #var value then apply it.

BUT as I always say IF it works for you then use it (;-).

(;-) TP

2712

General Mach Discussion / Re: using variables

« on: July 12, 2013, 09:35:32 PM »

Yes you can substitute a variable for the Q parameter.  I have not found anything weird in the #var  , the exception being it does NOT recognise a stated negative value such as -#100  , You have to convert the value to a _value by -1* or 0- before MAch3 will recognise it as such.

BUT the Q does not control hole depth it controls the peck distance.

In your case you would not see any advantage to using the #var you have to change the location values for each hole and when you do just specify a new Q value.

G83 X0 Y0 Z-1 Q.010 R.050 F10
X1 Q.020
X2 Q.030
etc,etc

(;-) TP

2713

Share Your GCode / Re: G-Code wanted for a half sphere

« on: July 12, 2013, 08:48:52 PM »

The program does NOT know metric from inches. Set your machine to metric with G21.


On the line  G17 G40 G80

ADD a G21   , 

G17 G40 G80 G21


(;-) TP

2714

Share Your GCode / Re: G-Code wanted for a half sphere

« on: July 11, 2013, 01:10:01 PM »

OK here it is and I cannot say it is perfect as I have nothing here to actually cut with. BUT it simulates so give it a whirl.

As always dry run test before you cut.

( Cut Concave Sphere)
(Setup the next 4 variables)
#1030 = .250 (Cutter Diameter)
#1040 = 5     (Sphere Diameter)
#1020 = .005 (Finish Allowance)
#1070 = 200  (Feedrate)

#1080 = [#1030/2] (Tool Radius)
#1000 = [[#1040 - #1030] - #1020]       (Sphere Diameter - Finish allowance )
#1001 = 90  
#1010 = #1001

G17 G40 G80
F1
G0 Z.5
M98 P1 L#1001    (Roughing Routine)
#1000 = [#1040 - #1030 ]
M98 P3 L#1001  
M30

o001
(Roughing Routine)
#1002 = [0-90-#1010]
#1003 = [COS[#1002] * #1000 / 2]  
#1004 = [SIN[#1002] * #1000 / 2]  
G1 X[0-#1003] Y0 Z[#1004] F#1070
#2000 =#1003
#2001 = #1004
G2 X[0-#1003] Y0 I#1003 F#1070    

#1010 = [#1010 - 1]          
#1050 =  [Fix [ -1*[#1003 / #1030]] *2]

M98 P2 L#1050
#1003 = #2000
#1004 = #2001
G1 X[0-#1003] Z#1004
M99

o002
(Do Pocketing of each slice)
#1003 = [#1003 +#1080]
G1 X[0-#1003 ]
G2 X[0-#1003 ] Y0 I[#1003 ]  F#1070  
M99

o003
(Do Finish Profile )
#1002 = [0-90-#1010]
#1003 = [COS[#1002] * #1000 / 2]  
#1004 = [SIN[#1002] * #1000 / 2]  
G1 X[0-#1003] Y0 Z[#1004] F#1070
G2 X[0-#1003] Y0 I#1003 F#1070    
#1010 = [#1010 - 1]  
M99
%

        
HAVE FUN, (;-) TP

2715

General Mach Discussion / Re: Flatten my G-code

« on: July 10, 2013, 11:34:27 PM »

OK I think I see, he wants a full on parametric file converted into a standard Gcode file(;-) You are right that is NOT going to happen in MACH3 with CB.

And yes I have SOME parametrics that generate OVER 1,000,000 lines of code. The Cam Grinder Code is the worse.  MACH3 is not really happy with it BUT it will run it without errors.

It MAY/might/almost be possible as a wizard but it would take some head scratching converting all the values before posting the code and would take forever to run.

(;-) TP

2716

General Mach Discussion / Re: Flatten my G-code

« on: July 09, 2013, 04:56:20 PM »

I am not even SURE what you are asking for. ??

 With Mach3 NOT having conditional G code AND does NOT run in real time it resolves all the calculations for parametrics on loading the G code. THAT is why you can see the toolpathing on screen.

Are you asking for a 2D view that is flattened in Z ?

(;-) TP

2717

Share Your GCode / Re: G-Code wanted for a half sphere

« on: July 09, 2013, 01:27:57 PM »

What size ball mill where you going to use ? I have the concave sphere code worked out just need to finish up the pocketing for each layer.

Might make an interesting Wizard after all.

(;-)TP

2718

Share Your GCode / Re: G-Code wanted for a half sphere

« on: July 08, 2013, 06:28:27 PM »

By hand that would be a tough one to do. If it were a convex part not so hard , Concave that is a tough one(;-).

Need a Cam to do that one.

(;-)TP

2719

Newfangled Mill Wizard / Re: Engraving with gcode text from stickfont.2.12 bugs?

« on: July 08, 2013, 12:07:56 PM »

HIya Ron , IF the WIZ is to use INC ij's should it not add the start up / safety code to make SURE it is set correctly for the Gcode created ?

Just a thought, (;-)TP

2720

G-Code, CAD, and CAM discussions / Re: Post processor G-code sherline 2010

« on: July 08, 2013, 11:55:16 AM »

Idepends on what control system yo have on the sherline. Mach3 or LinuxCNC ?

IF the Fanuc OM does not do it try the Fanuc 6 post

Just a thought, (;-) TP