Machsupport Forum

G-Code, CAD, and CAM => G-Code, CAD, and CAM discussions => Topic started by: Otokoyama on February 19, 2006, 01:49:04 PM

Title: G83 Mystery
Post by: Otokoyama on February 19, 2006, 01:49:04 PM

I have the following code, which I'm entering manually to test:

G97 S1500
G95 F.008
G00 X0 Z0
G83 Z-2.2 Q.2

If the spindle is off, the G83 works fine.  If the spindle is on, the Z axis starts moving positive until I have to Stop it; I'm not sure where it's trying to go. 

What am I misunderstanding?  Thanks. 

Title: Re: G83 Mystery
Post by: Art on February 19, 2006, 03:14:16 PM

Sounds like you have THC turned on in the config, or in the config/ports&Pins/Mill options you may have "Allow Z up down cxontrols when not in THC". If so, turn that off. Was that the trouble.. ?

Art

Title: Re: G83 Mystery
Post by: Otokoyama on February 19, 2006, 05:16:44 PM

I should have mentioned that this is Mach3 Turn.  Does this have any THC option? 

Title: Re: G83 Mystery
Post by: Art on February 19, 2006, 05:29:53 PM

Sorry, I should have know that due to the G83 beign used. The reason the Z isnt moving till the spindle is on, is beacsue your in feed/rev mode, but I dont know why the Z is moving..
  Whats the start position of the Z?

Brian:
  Any idea on this one, I havent used the G83 series in Turn as yet, I know the macro is new.. What are the parameters of it??

Thanks
Art

Title: Re: G83 Mystery
Post by: Art on February 19, 2006, 05:47:50 PM

Hi MArty:

DRill G83 X (optional)  Z (mandatory) Q (Mandatory) R(Mandatory)     G00 x0.0 z3.00
G83 Z-1.00 Q.1 R.1 F20
m30

  So you have no retract distance, Set an R of .1 for example..


Art

Title: Re: G83 Mystery
Post by: Brian Barker on February 19, 2006, 06:29:20 PM

I tested it here and it is working ver well!

Be sure you have the R val

Title: Re: G83 Mystery
Post by: Otokoyama on February 21, 2006, 01:23:13 AM

When I specify the R value, it works fine. 

Thanks.