Machsupport Forum

Third party software and hardware support forums. => LazyTurn => Topic started by: moskit on February 01, 2013, 03:39:31 PM

Title: LT gcode diameter larger than needed
Post by: moskit on February 01, 2013, 03:39:31 PM

Guys, any one had something like this?? i post gcode with 26mm  but the gcode ends 26.400

 Z-36.6834 X25.6382
 Z-37.7449 X25.8082
 Z-37.7696 X25.8120
 Z-38.8344 X25.9602
 Z-38.8591 X25.9635
 Z-39.9515 X26.0926
 Z-41.0464 X26.1991
 Z-42.1431 X26.2832
 Z-43.2414 X26.3446
 Z-44.3407 X26.3835
 Z-45.4406 X26.3998
 Z-80.0000 X26.4000
 Z-80.0000 X26.4000
 Z-80.0000 X26.4000

Thanks for any advice

Title: Re: LT gcode diameter larger than needed
Post by: RICH on February 01, 2013, 04:49:21 PM

Post the dxf file. Provide a pic of the tool definitions that you are using.
RICH

Title: Re: LT gcode diameter larger than needed
Post by: Machtank on April 28, 2013, 01:14:15 AM

Yes ! I get that too.
It seems to be mainly influenced by the Tool radius specified. (finish cut settings also have a slight effect)

Title: Re: LT gcode diameter larger than needed
Post by: mohamedhelmi on November 15, 2013, 01:09:38 AM

I have same problem.
what that means ? and what is the solution ?

Title: Re: LT gcode diameter larger than needed
Post by: RICH on November 15, 2013, 04:56:31 AM

Post the dxf file. Provide a pic of the tool definitions that you are using.
RICH

Title: Re: LT gcode diameter larger than needed
Post by: mohamedhelmi on November 15, 2013, 05:00:56 PM

Dear Rich,
please check attachment, and for info this broblem happen for all tests that I do.
when transferring from AUTOCAD to LT all ok. but when posting from LT to Mach 3 the Diameter of the ROUGH path looks clearly more bigger than the FINE path.

Title: Re: LT gcode diameter larger than needed
Post by: RICH on November 15, 2013, 09:12:53 PM

Can you save and then post your drawing as a version 12 dxf?
I can't open your drawing.
RICH

Title: Re: LT gcode diameter larger than needed
Post by: mohamedhelmi on November 16, 2013, 02:00:05 AM

dear Rich,
I dont find extention .12DXF
I have DXF (autocad 2010,2007, 2004, 2000, 14 )
does .DXF means (DXF autocad 12) ?

Title: Re: LT gcode diameter larger than needed
Post by: RICH on November 16, 2013, 05:45:51 AM

I use Autocad 2007. It will not read newer versions.
Save the file as shown in the pic.

RICH

Title: Re: LT gcode diameter larger than needed
Post by: mohamedhelmi on November 16, 2013, 06:58:27 AM

OK Rick,
I'll do it asap (because I'm at work right now)

thanks

Title: Re: LT gcode diameter larger than needed
Post by: mohamedhelmi on November 16, 2013, 07:50:26 AM

 Rick,
I'm just back home. kindly check attached .DXF file saved under AUTOCAD R12 version.
 ::)

Title: Re: LT gcode diameter larger than needed
Post by: mohamedhelmi on November 16, 2013, 09:00:52 AM

Friends,
One more project with identical problem.
Please check attachment.

Title: Re: LT gcode diameter larger than needed
Post by: mohamedhelmi on November 17, 2013, 02:50:10 AM

guys,
I think that I find the solution, I was playing with setting and changed accidentally the mode from Radius to Diameter. So after I change it the problem was solved.
Thanks every body. ;)

Title: Re: LT gcode diameter larger than needed
Post by: RICH on November 17, 2013, 06:14:53 AM

mohamedhelmi,
Always remember:
Must be consistant ie; if you CAD / draw in diameter, LT should be set for diameter, Mach should be configured for diameter mode.

RICH

Title: Re: LT gcode diameter larger than needed
Post by: mohamedhelmi on February 14, 2015, 04:27:05 PM

 :) HI,
I encountered a problem when transferring autocad drawing to lazy turn. the diametre is more bigger than required.!
can any body help me please ?
Please check attachment for more explanation.

Title: Re: LT gcode diameter larger than needed
Post by: RICH on February 14, 2015, 07:36:18 PM

Can't open your files. Save as version 12 DXF and also not 3d.

RICH

Title: Re: LT gcode diameter larger than needed
Post by: Machtank on February 15, 2015, 01:52:29 AM

I managed to open your .dwg file and save as R12 dxf, but you must move your profile to the required quadrant (RH end point at 0,0). However still not getting true result, but it does load into Laziturn. Modified DXF attached.

Ezilathe might be an option if you can add a couple of lines to your dxf to guide toolpath over gaps in profile at change of tool (LH to RH).

Title: Re: LT gcode diameter larger than needed
Post by: RICH on February 15, 2015, 07:07:10 AM

In reply #14 not sure what dimension you are questioning.
I will assume it is the larger diameter / radius part of the piece.

The Brown pentagon will show the largest piece dimension.
It is used to scale the piece up or down via slider movement or input of a value.

The dimension in CAD ( dxf per reply#16 ) from center line to larger outside here is 5.2384.
It is just a "unit" as far as LT is concerned on import.

In LT - Diameter Mode it is  5.2384    
        - Radius Mode it is 10.4760  
( The value can be read from the pentagon, or, zoom way out and setting the cross hair on the line as the
graphic Z&X location is shown in the lower left side of the screen.

Have a read of the manual Appendix B &C about drawings / dxf / what to do or what not to do.

Remember.....always be consitant in mode / unit / configuration for all programs that wiil be used from start to using Mach3 lathe.        

I am using LT version 1.1

RICH