Messages

1821

Show"N"Tell ( What you have made with your CNC machine.) / Re: Steam Engine Name Plates

« on: November 24, 2007, 04:15:56 AM »

Very nice job.

tmsmith,

you can get cutters from here :-

http://www.pantograph.co.uk/cutters.htm

Graham.

1822

G-Code, CAD, and CAM discussions / Re: Newbie simple drawing HELP!

« on: November 23, 2007, 02:42:44 PM »

Why can't you measure the original?

With the sizes of the part, a program of approx 20 lines of nc code would make that part.

Without the true measurements its a guessing job, and a picture of 150*150 pixels is useless.

Graham.

1823

G-Code, CAD, and CAM discussions / Re: Radius to end of arc differs

« on: November 22, 2007, 02:13:09 PM »

G20 is Inch measurements

G21 is Metric measurements

G40 cancels all old offsets

G00 is move in rapid

G90 movements are absolute

G80 cancel all drilling/tapping cycles

G91.1 use incremental arcs in G02/G03 (must be on a line of its own)

G90.1 use absolute arcs (must be on a line on its own)

Looking at your last program I would suggest :-

G20 G40 G00 G80 G90
G9g.1

Note

G9g.1  G90.1 or G91.1 depending on what your CAD/Cam system puts out for IJ's on G02/3

Graham.

1824

General Mach Discussion / Re: Canned Drilling Cycle Problem

« on: November 22, 2007, 01:08:53 PM »

you can do it like this:-

%
G20 G40 ETC.

G00 X0 Y0
M98 P1
G00 X1. Y1.
M98 P1
ETC.
M30

O1(SUB)
G00 Z-5.6
G01 Z-8.6 F15
G00Z1.
Z-8.
G01 Z-10.
G00Z1.
M99
%

Graham.

1825

General Mach Discussion / Re: Canned Drilling Cycle Problem

« on: November 22, 2007, 11:50:13 AM »

I think its the G80 that kills all modal commands, I asked Art about changing this some time back, so everything went back to how it was before the cycle call, but it sounded is if that may be a major job.  Maybe in Quantum.

Graham.

1826

General Mach Discussion / Re: CNC Building Blocks ?

« on: November 22, 2007, 11:37:37 AM »

Finally got hold of Ed, he gave me new email addresses that work.

Job sorted, thanks,

Graham.

1827

G-Code, CAD, and CAM discussions / Re: Tool Changes in Artcam Post

« on: November 22, 2007, 11:31:26 AM »

I sent you an email.

No we don't, we have to work 

Graham.

1828

G-Code, CAD, and CAM discussions / Re: Text engraving on a wheel

« on: November 22, 2007, 11:29:08 AM »

Let me know how you get on, 

Graham.

1829

G-Code, CAD, and CAM discussions / Re: Text engraving on a wheel

« on: November 22, 2007, 10:46:07 AM »

If you draw a rectangular box the length of the circumference of your ring/counter in the y axis and fit your text into it.

Then configure your A axis so that it is linear, work the steps out for 1" or 1mm of arc at the circumference of the ring.

Post out the code and change all the Y axis moves to A.

Run the program at your own risk.

Or

Use a CAM system.

Graham.

1830

G-Code, CAD, and CAM discussions / Re: Radius to end of arc differs

« on: November 22, 2007, 10:32:37 AM »

You need to look in the config and change the IJ mode.

it would also help if your programs had some start up lines.

e.g.

G21 G40 G00 G90 G80
G91.1

Graham.