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Messages - bwprice100

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51
General Mach Discussion / Re: True 4 axis milling
« on: July 15, 2010, 08:00:52 AM »
Thanks for that.

It's just for the future and knowing what I might need if I meet a limitation with MeshCAM

Brian

52
General Mach Discussion / True 4 axis milling
« on: July 15, 2010, 03:03:39 AM »
Hi All

Just a quick question (so much to learn)

I am just starting to get my 4 axis mill conversion up and running and I have started to use MeshCam to do some programming. Now it is is a very good program but it only seems to use the 4 axis to rotate the part before continuing with machining using the X,Y&Z i.e. no machining is done while the Rotary axis is moving.

The question is does anyone have examples of Mach3 machining with all 4 axis (3 linear and 1 rotary) moving and what CAM package did they use for this?

Thanks Brian

53

I never said I was changing direction.


You never said you wern't :)

I have now reach the level of my expertise :)

Brian

54
Not an expert but I see this when I change direction and the backlash is kicking in.

Brian

55
G-Code, CAD, and CAM discussions / Re: G0 X0 or G0 X0.0
« on: July 13, 2010, 03:38:04 AM »
cheers guys

Next time it happens I will try and note what exactly the onditions where. I seem to think it was happening when I had been mucking about with the axis calibration but absolutly certain. :)

Brian

56
G-Code, CAD, and CAM discussions / Re: G0 X0 or G0 X0.0
« on: July 12, 2010, 02:15:19 PM »
Are you sure your not typing "O" instead of zero? It shouldn't make any difference.

Pretty sure:-)

It's happen quite a few times so I doubt that its finger trouble.

No problems when running a program only happens on the MDI screen

It's not causing me any big problem, I was just concerned that I was misunderstanding how the Gcode works.

Brian

57
G-Code, CAD, and CAM discussions / Re: G0 X0 or G0 X0.0
« on: July 12, 2010, 01:42:57 PM »
Just had a thought Jerry:-)

If I was in Incremental mode then surly no G0X0 would move the axis

What I am getting is, for example

X axis at 4mm, then input G0X0 - nothing moves then input G0X0.0 - axis moves to zero

Brian

58
G-Code, CAD, and CAM discussions / Re: G0 X0 or G0 X0.0
« on: July 12, 2010, 01:17:38 PM »
Sounds like your sometimes in incremental mode and sometimes in absolute mode.

Hi Gerry

Not changing the settings and why would this be different for these 2 modes anway?

Brian

59
G-Code, CAD, and CAM discussions / G0 X0 or G0 X0.0
« on: July 12, 2010, 11:25:08 AM »
Hi

New to Gcode programming but I get the following inconsistency.

On the MDI screen sometimes an axis will go to zero whether I use G0 X0 or G0 X0.0 but some it will only work if I input G0 X0.0 and sometime I can only get the axis to move if I use G0 X-0.0

Why?

Brian

60
General Mach Discussion / Re: Z Axis Drifting or Loosing Steps?
« on: July 09, 2010, 04:57:44 AM »
.
Maybe a daft question but it's not backlash?

Brian

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