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Messages - Graham Waterworth

1971
G-Code, CAD, and CAM discussions / Re: hole That is milled is to small
« on: August 04, 2007, 02:34:42 PM »
I will take it you are using a 3/16" dia cutter, try this code

It will mill a 1" circle 10 thou deep, see what size it makes it.

Graham.

G20 G40
G00 G90 G43 X0 Y0 Z1.
Z.1
G01 Z-.01 F2.
X.406 F2.
G03 I-.406
G00Z1.
M30


1972
G-Code, CAD, and CAM discussions / Re: g-code verifying
« on: August 04, 2007, 02:20:52 PM »
Here is a bit of code that will datum the a axis at what ever point it is at and then move the A axis from 0 to 30 degrees back to 0 and then 30 degrees the other way.

G92 A0 (datum a at this point)
G00 G90 Z0 (rapid to z0)
G01 A30. F100. (feed to 30 degrees)
G00 Z1. (rapid z clear)
A0 (rapid a to 0)
Z0 (rapid z to 0)
G01 A-30. (feed a to -30 degrees)
G00 Z1. (rapid z clear)
M30 (end program)

Graham.

1973
Have you got the tool offset table set correctly?

The last bit of gode is using a G41 so tool offsets are been used, tool 2 in the offset table must have the tool dia entered.

Graham.

1974
What have you got set in your motor tuning?

Graham.

1975
G-Code, CAD, and CAM discussions / Re: doing a mirror cut
« on: July 20, 2007, 10:15:50 AM »
Have a look at my version of your code, run it in Mach normal and then mirror it.

DO NOT USE IT TO MAKE PARTS AS I HAVE NO IDEA IF ITS AS YOU NEED IT.

Look at the code and you will see the G02 and G03 lines are changed, this is why it works and yours did not.

Graham.

1976
G-Code, CAD, and CAM discussions / Re: DFX to G Code
« on: July 20, 2007, 09:55:57 AM »
LazyCAM Pro will do the 2D/2.5D stuff, if your budget stretches into 1000,s then look at AlphaCAM, OneCNC, MasterCAM, BobCAD/CAM, Etc.

Graham.

1977
G-Code, CAD, and CAM discussions / Re: doing a mirror cut
« on: July 19, 2007, 11:40:22 AM »
Post your g-code and let me have a look.

Graham.

1978
G-Code, CAD, and CAM discussions / Re: doing a mirror cut
« on: July 17, 2007, 08:37:17 PM »
Try using a G51 x-1. at the start of your program and a G50 x1. at the end.

If you have any tool changes in the code you must set G51 at the start of the tool and clear it with G50 before the tool change.

The other way to do it is to set the scaling values on the program screen to -1. in X or Y.

Graham.

1979
Promote and discuss your product / Re: UK cnc router site
« on: July 17, 2007, 02:28:57 AM »
The only thing that I can see missing from your site is a phone number,  I would never buy from a web site with no phone number.

Graham.

1980
General Mach Discussion / Re: Bad Driver Test
« on: July 16, 2007, 09:53:12 AM »
Absolute minimum spec would be :-


(Budget price)
1Gh Pentium/AMD processor
256Mb ram (with only Mach running no networking or internet firewall/anti-virus)
10Gb Hdd
ATI 7000 or Geforce 6100 graphics card

Prefered spec

(Medium price)
2Gh + processor
1Gb ram
40Gb Hdd
ATI 6550 or Geforce 7300 graphics card

For showing off

(Money to burn)
Intel Core2 Extreme 6800 2.93*4 Processor
4Gh DDR2 PC2-5300 ram
500Gb Hdd
ATI X2900 HD or Geforce 8800 ultra

I use both lower specs with good results. The third one would be real overkill.

Graham.