Messages

51

General Mach Discussion / Cutter comp, comps backwards

« on: September 17, 2008, 12:56:22 AM »

i am trying to cut a 4" radius with a .375 end mill, when i set the part up i can offset the work and cut what i need to, in order to get the job done but i don't want to keep working this way.  i am trying to cut a counter clockwise arc with the tool to the left of the cut. i will post the code tomorrow and maybe we can figure this out.

52

Feature Requests / Re: POLL: Mach3 Lathe and G70/G71/G72 roughing, facing, finishing

« on: September 17, 2008, 12:35:39 AM »

i asked for this before, i really hope it gets implemented. 

53

General Mach Discussion / Re: m98 help includes arc cut

« on: June 12, 2008, 10:03:26 AM »

in case anyone has anything like this to do in the future.  the above code is correct, but it will cut a 10" diameter arc.

thanks

54

General Mach Discussion / m98 help includes arc cut

« on: June 11, 2008, 06:29:11 AM »

what i'm trying to do is move an endmill into position of the first arc cut, the repeat the arc cut 5 times to the finish dimension, while incrementing each successive cut +.050 in the x direction.  basically i want to position the cutter, take one radius cut go back to the home position of the arc cut, move over .050 and then do another arc cut.  then repeat the arc cuts until i'm at the final dimension of the part.  here is a code i started with...

G0 G49 G40  G17 G80 G50 G90
M6 T1(TOOL DIA. 0.375)
G20 (Inch)
M03 S300
M08
G64
G00 G43 H1  Z0.1
g42 X-3.7498 Y-3.0012
G01 Z-1.575 F10
M98 P1 L5
g90
g00 Z0.1
M5 M9
M30

O1
g91
G3 X0 Y3.2704 r5 F5
G1 X0 Y-3.2704
G1 X.050 F10
M99

55

LazyCam (Beta) / Re: text optimization

« on: May 16, 2008, 11:33:26 AM »

ok i ended up doing multiple lines in my cad program.  now i'm trying to optimize the program.  i would like for LCAM to do one letter at a time right now it jumps around from letter to letter doing part of each at a time.

thanks

Jerry

56

LazyCam (Beta) / text optimization

« on: May 16, 2008, 10:32:46 AM »

i am trying to use Lcam to create multiple line text.  i also need to know if you can set the font size?  i haven't been able to find it in there so i wonder if it exists. also can lcam do text engraving using a 4th axis on a cylinder?

thanks

jerry

57

General Mach Discussion / Re: hooking up limits

« on: May 09, 2008, 02:17:07 PM »

Hood,

thanks for the tip.  i tried that and it worked for a while but ended up triggering the limits sooner or later on its own again.  any other tips other than shielding the cables? 

58

General Mach Discussion / Re: hooking up limits

« on: May 09, 2008, 01:00:57 PM »

OK, i got the limits all hooked up and they work on the diagnostic screen.  however, i still get an e-stop trigger and it tells me a limit is triggered.  how do you trace something like this when nothing is showing up in the diagnostics?

59

General Mach Discussion / Re: hooking up limits

« on: May 04, 2008, 07:40:58 AM »

I'm not using a BOB, i'm wired directly to the parallel port.  my last adventures try to cnc through a bob were useless. do i need to add a resistor parrallel with the input to pull the parallel port pin down to 0?

60

General Mach Discussion / hooking up limits

« on: May 03, 2008, 05:29:20 PM »

i'm using optical limits as my home and limit switches for my mill.  the switch when triggered sends a +5volt signal to the computer.  however, pins 10, 11,12, 13 have 4.5 volts on them when the optical switches aren't connected.  my optical switches are wired to send 5 volts to the computer to create a trigger event.  i thought that pins 10-13 were input pins?  what am i doing wrong?