Messages

2521

General Mach Discussion / Re: Rage rising!! (Mystery Men Quote)

« on: June 20, 2006, 05:01:49 AM »

Hi,

I think you need to remove the G99 and insert G01

G99 is normally only used in canned cycles e.g. G81, G82 Etc.

Graham.

N7079 X12.498 Y1.1121
N7081 Z0.3000
N7083 M5
(1/8" Pocketing)
N7087 G00 X0 Y0 Z2 M06 T3
N7091 X16.8875 Y8.974 Z0.2500 S10000 M3
N7093 G01 Z0.0500 F6.0
N7095 Y8.9706 Z0.0491 F3.0
N7097 X16.8742 Z0.0455
N7099 X16.8691 Y8.9716 Z0.0441

2522

G-Code, CAD, and CAM discussions / Re: Rhinocam post

« on: June 19, 2006, 12:51:18 PM »

I use a Fanuc 6M post on AlphaCAM.  It works ok for me.

Graham.

2523

G-Code, CAD, and CAM discussions / Re: File name for a g-code conversion

« on: June 18, 2006, 04:13:51 AM »

Hi,

any text you want to display can be written in brackets, e.g.

(part number 123456/1)

Graham.

2524

General Mach Discussion / Re: loops and nested loops. Can I use my bridgeport programs?

« on: June 15, 2006, 07:24:54 PM »

Loops are done in mach with :-

M98 P100 L25

M98  =     call sub program with loop code in
P100 =    program number to call
L25   =    number of times to call sub program.

Graham.

2525

General Mach Discussion / Re: Yet another newbie...

« on: June 15, 2006, 07:18:41 PM »

Hi,

The motors when still will hum, this is normal.

If you want to test your movements then here is a small program to try out.

Set an A4 sheet of paper in the middle of your table with the long way front to back,  zero out the X & Y axis in the middle of the paper, draw a cross corner to corner to find the middle.  Then set the pen so it is just touching the paper. Zero out the Z axis DRO.

Cut and paste this program into notepad and save it as test.tap

Load the program into Mach3 and run it

The program will draw a square a circle and some text to tell you the size it had drawn, check the size.

Graham.

(TEST PROGRAM)

G21 G40 (METRIC)

N1 (FELT PEN)
G00 G90 Z25.
X-100. Y-143.5
G00 Z1.
G01 Z0. F200.
G01 X100.
G01 Y143.5
G01 X-100.
G01 Y-143.5
G00 Z25.
G00 X0. Y100.
G00 Z1.
G01 Z0.
G02 X86.613 Y-49.982 R100.
G02 X-86.613 R100.
G02 X0. Y100. R100.
G00 Z25.
G00 X-100. Y120.424
G00 Z1.
G01 Z0.
G01 X-7.839
G00 Z25.
G00 X7.839 Y120.424
G00 Z1.
G01 Z0.
G01 X100.
G00 Z25.
G00 X-95. Y119.591
G00 Z1.
G01 Z0.
G01 X-100. Y120.424
G01 X-95. Y121.258
G01 Y119.591
G00 Z25.
G00 X95. Y121.258
G00 Z1.
G01 Z0.
G01 X100. Y120.424
G01 X95. Y119.591
G01 Y121.258
G00 Z25.
G00 X-79.814 Y143.5
G00 Z1.
G01 Z0.
G01 Y3.766
G00 Z25.
G00 X-79.814 Y-3.797
G00 Z1.
G01 Z0.
G01 Y-143.5
G00 Z25.
G00 X-80.647 Y138.5
G00 Z1.
G01 Z0.
G01 X-79.814 Y143.5
G01 X-78.98 Y138.5
G01 X-80.647
G00 Z25.
G00 X-78.98 Y-138.5
G00 Z1.
G01 Z0.
G01 X-79.814 Y-143.5
G01 X-80.647 Y-138.5
G01 X-78.98
G00 Z25.
G00 X50.104 Y-86.543
G00 Z1.
G01 Z0.
G01 X2.206 Y-3.811
G00 Z25.
G00 X-2.18 Y3.766
G00 Z1.
G01 Z0.
G01 X-50.104 Y86.543
G00 Z25.
G00 X-48.32 Y81.798
G00 Z1.
G01 Z0.
G01 X-50.104 Y86.543
G01 X-46.877 Y82.633
G01 X-48.32 Y81.798
G00 Z25.
G00 X48.32 Y-81.798
G00 Z1.
G01 Z0.
G01 X50.104 Y-86.543
G01 X46.877 Y-82.633
G01 X48.32 Y-81.798
G00 Z25.
G00 X-3.256 Y117.924
G00 Z1.
G01 Z0.
G01 X-6.589
G02 X-5.756 Y119.424 R1.762
G01 X-3.867 Y120.591
G03 Y122.702 R1.222
G03 X-5.756 R1.993
G03 X-6.367 Y121.869 R1.19
G00 Z25.
G00 X-1.559 Y118.477
G00 Z1.
G01 Z0.
G03 X0.997 R1.637
G03 Y122.311 R3.044
G03 X-1.559 Y122.31 R1.637
G03 Y118.477 R3.044
G00 Z25.
G00 X3.355 Y118.477
G00 Z1.
G01 Z0.
G03 X5.91 R1.637
G03 Y122.311 R3.044
G03 X3.355 Y122.31 R1.637
G03 Y118.477 R3.044
G00 Z25.
G00 X-82.831 Y-2.5
G00 Z1.
G01 Z0.
G01 X-86.164
G02 X-85.331 Y-1. R1.762
G01 X-83.442 Y0.167
G03 Y2.278 R1.222
G03 X-85.331 R1.993
G03 X-85.942 Y1.444 R1.19
G00 Z25.
G00 X-79.322 Y0.116
G00 Z1.
G01 Z0.
G03 X-78.766 Y0.505 R2.166
G03 Y2.06 R1.08
G03 X-81.211 R1.909
G03 Y0.56 R0.981
G03 X-79.933 Y0.171 R1.699
G02 X-78.655 Y-0.218 R1.699
G02 Y-2.107 R1.175
G02 X-81.322 R2.236
G02 Y-0.218 R1.175
G02 X-80.544 Y0.227 R3.569
G00 Z25.
G00 X-77.075 Y2.503
G00 Z1.
G01 Z0.
G01 X-73.464
G01 Y2.225
G03 X-75.741 Y-2.497 R5.69
G00 Z25.
G00 X-9.589 Y-2.5
G00 Z1.
G01 Z0.
G01 X-4.589 Y2.5
G00 Z25.
G00 X-7.089 Y2.
G00 Z1.
G01 Z0.
G02 X-5.357 Y-1. R2.
G02 X-8.822 R2.
G02 X-7.089 Y2. R2.
G00 Z25.
G00 X-0.256 Y-2.5
G00 Z1.
G01 Z0.
G01 X-3.589
G02 X-2.756 Y-1. R1.762
G01 X-0.867 Y0.167
G03 Y2.278 R1.222
G03 X-2.756 R1.993
G03 X-3.367 Y1.444 R1.19
G00 Z25.
G00 X1.441 Y-1.947
G00 Z1.
G01 Z0.
G03 X3.997 R1.637
G03 Y1.886 R3.044
G03 X1.441 R1.637
G03 Y-1.947 R3.044
G00 Z25.
G00 X6.355 Y-1.947
G00 Z1.
G01 Z0.
G03 X8.91 R1.637
G03 Y1.886 R3.044
G03 X6.355 R1.637
G03 Y-1.947 R3.044
G00 Z25.
M30

2526

General Mach Discussion / Re: Circular pocket shout out

« on: June 15, 2006, 06:41:29 PM »

Excellent news Keith, theres hope for all.

Graham.

2527

General Mach Discussion / Re: Help with Write Wizard

« on: June 15, 2006, 02:09:56 PM »

Hi,

if you want lots of text have a look at this working demo, it outputs G-Code.

http://members.aol.com/m9685123/Mdemo.htm

Graham.

2528

General Mach Discussion / Re: Circular pocket shout out

« on: June 15, 2006, 01:39:07 PM »

Hi,

I have had great success with 60 and 75 degree cutters, they transmit the cutting force more in the Z then in the X & Y.

The only thing to watch out for is that you have a good hold on them or they pull down in the chuck.

Graham.

2529

General Mach Discussion / Re: Circular pocket shout out

« on: June 15, 2006, 04:22:46 AM »

Is the flat always the same length independent of the circle diameter, if it is then it sounds like backlash or movement in the gibbs, if it varies then it could be cutter pull/push.

If you use very high helix cutters this can help reduse pull.

Graham.

2530

G-Code, CAD, and CAM discussions / Re: Peck Drilling

« on: June 13, 2006, 04:12:13 AM »

Hi Kieth,

Peck drilling cycle works like this :-

Short retract type, just breaks the chip, drill stays down the hole.

G73 Z-1. R.1 Q.1 F3.

Z = final depth of hole
R= safe starting distance above job
Q= depth of each peck
F= feed rate

or

Full retract type, every peck the drill moves back to start position (R) and then rapids back to cutting depth.

G83 Z-1. R.1 Q.1 F3.

Z = final depth of hole
R= safe starting distance above job
Q= depth of each peck
F= feed rate

If you add a G98 to the line it forces the tool to rapid back the the safe start point.

If you add a G99 to the line it forces the tool to rapid back to the R point. You should then put a G98 on the last move 

If you have 4 holes to drill on 1" centers you would do something like :-

N1 (DRILL 1/4" * 2" DEEP)
G54 G00 G90 G43 X0 Y0 Z25. H1 S1000 M3
G73 G99 Z-2. R.1 Q.25 F2.
X-1.
X-2.
X-3. G98
G80
G91 G28 Z0
M30

Graham.