Messages

1841

G-Code, CAD, and CAM discussions / Re: Alignment problem

« on: November 15, 2007, 01:50:19 PM »

If some are correct and some are wrong then it is a program fault or cutter push, this can not be compensated for using cutter comp as the comp is applied all over the part(s)

Try changing the feed rates and/or the order in which the cuts are done.  You may need to leave tabs at the end of the combs and take them out last.

Graham.

1842

G-Code, CAD, and CAM discussions / Re: Alignment problem

« on: November 15, 2007, 04:43:32 AM »

OK, I have had a 2nd look and the code needed a little adjustment at the start.

Graham.

%
(Rout Combs)
G20 G40
G0 G90 Y0 X0 Z.25

G52 X.35 Y.3
M98 P1234
G52 X.35 y1.1
M98 P1234
G52 X.35 Y1.9
M98 P1234
G52 X.35 Y2.7
M98 P1234
G52 X.35 Y3.5
M98 P1234
G52 X.35 Y4.3
M98 P1234
G52 X.35 Y5.1
M98 P1234
G52 X.35 Y5.9
M98 P1234
G52 X.35 Y6.7
M98 P1234
G52 X.35 Y7.5
M98 P1234
G52 X.35 Y8.3
M98 P1234
G52 X.35 Y9.1
M98 P1234
G52 X.35 Y9.9
M98 P1234
M30

O1234 (Sub routine for routing combs)
G00 X.352 Y.500 Z.25
G01 Z0 F20
X1.102
X1.132 Y.900
X1.252
X1.282 Y.500
X1.402
X1.432 Y.900
X1.552
X1.582 Y.500
X1.702
X1.732 Y.900
X1.852
X1.882 Y.500
X2.002
X2.032 Y.900
X2.152
X2.182 Y.500
X2.302
X2.332 Y.900
X2.452
X2.482 Y.500
X3.482
Z0.25
G52 X0 Y0
M99
%

1843

G-Code, CAD, and CAM discussions / Re: Alignment problem

« on: November 14, 2007, 12:30:56 PM »

It is the way Mach draws the sub, the program will be ok.

Graham.

1844

General Mach Discussion / Re: Cutting Circles

« on: November 13, 2007, 03:29:28 PM »

What diameter is your circle and how long are the flats?

Graham.

1845

G-Code, CAD, and CAM discussions / Re: A Axis

« on: November 08, 2007, 11:10:31 AM »

It sound as if you need to divide your 'steps per' by 360 in the motor tuning window.

Graham.

1846

Show"N"Tell ( Your Machines) / Re: Ergoman's small CNC

« on: November 06, 2007, 08:00:44 PM »

Well, its a master piece of simplicity, well done, its amazing.

Graham.

1847

General Mach Discussion / Re: Time to have new members have restricted posting rights

« on: November 06, 2007, 02:44:45 AM »

You have no idea just how many spammers we reject each day, in the last hour I have rejected 4. its an on going battle and they are getting better all the time.  As we have 24 hour moderation we get most of them before you see them, an odd one is going to get onto a board, all I can say is don't get upset, just click the report button and then every moderator gets to know about it and one of us will remove it.

Graham.

1848

General Mach Discussion / Re: Front & rear toolposts in Machturn

« on: November 04, 2007, 01:00:27 PM »

thanks Tony,

Graham.

1849

G-Code, CAD, and CAM discussions / Re: Help with G-Code error

« on: November 04, 2007, 10:59:39 AM »

In most CAM systems you can specify the segment length, this will then make the flats smaller or larger.

If you can just re-program VM to mill you a circle then it will output a G02/3 and the out side will then be smooth.

To mill a circle is very easy :-

(MILL 1.5 O/D BOSS WITH .375 DIA END MILL)

G20 G17 G80 G90
M6 T1
G43 H1
S1750 M3

G00 X.9375 Y0             (MOVE TO START)
Z0                               (MOVE TO TOP OF JOB)
G03 I-.9375 Z-.01 F5.    (MILL A CIRCLE AND MOVE DOWN .010")
G00 Z1.
M30

Graham.

1850

General Mach Discussion / Re: Front & rear toolposts in Machturn

« on: November 04, 2007, 10:41:00 AM »

LM2197? I cant find any reference to that on the web. Is that a valid number?

Graham.