Messages

1

G-Code, CAD, and CAM discussions / Re: Help/Advice with Gcode Chess Piece

« on: September 19, 2012, 07:35:29 PM »

@RICH: Thanks for the reply. What should I look for as far as cutting the part off the blank? I was told it needs to be done in a pecking motion so there is no ribbon? Can you give me a little more info on what this means?

Thanks!

2

General Mach Discussion / Re: Mach 3 Turn: CSS Mode

« on: September 19, 2012, 07:33:22 PM »

@Hood: Are you saying CSS does not work at all in Mach3 so I shouldn't even bother with it?

3

General Mach Discussion / Mach 3 Turn: CSS Mode

« on: September 12, 2012, 06:27:33 PM »

Hi,

I'm currently using Mach 3 Turn demo and I'm just trying to see if I can get CSS(Constant Surface Speed) mode to work. I wrote up some example code that should let me see on Mach3 the spindle speed increasing as the X diameter decreases however the spindle speed is remaining at a constant 50 the whole time.

Could this be because I'm just running the code in simulation mode(I'm not hooked up to a real lathe with an encoder so I have no feedback) or is CSS mode a non-demo feature?

Here is the code I'm using, it should let me see the spindle speed increasing:

G21 G40 (metric and clear any comp.)
T0101 (select tool 1 offset 1)
G00 X100. Z10. (rapid to start point)
G48 S1000 (set max spindle speed)
G96 S50 M3 (select CSS)
G95 (set to feed/rev)
G01 X10. F.2 (feed to 10mm dia)
X100. (feed back to start point)
G97 S1000 M3 (set to rpm mode)
M30 (all done)



Thanks for your time!

4

G-Code, CAD, and CAM discussions / Re: Increment Spindle RPM per Cut

« on: September 10, 2012, 12:04:53 PM »

I believe what I'm looking for is constant surface speed. Can CSS mode be enabled in the Mach 3 Lathe demo? How does one go about using CSS mode in a program?

5

G-Code, CAD, and CAM discussions / Increment Spindle RPM per Cut

« on: August 29, 2012, 02:23:59 PM »

Hi,

I'm wondering if there is a setting within Mach3 or a M code I can use in my Gcode to make the spindle RPM increase/increment a percentage per each cut taken. Is this possible to do through Mach?

Thank you very much,
Joel

6

G-Code, CAD, and CAM discussions / Help/Advice with Gcode Chess Piece

« on: August 29, 2012, 01:55:27 PM »

Hi,

I'm very new to CNC and I was wondering if someone could give me some advice on how to proceed with this operation.

I currently have Gcode for a chess piece. The piece comes out perfect on paper, however the blank I want to use to actually turn into a chess piece is much longer than what the chess piece comes out as on paper which would leave me with the chess piece and alot of blank that I'd need to cut off with a hacksaw.

From what I've researched and gathered, I need to take a part off tool and part off at the blank and then do some sort of tool offset through Mach(Maybe using an M code?) and then move the extra distance that I want to get rid of down the blank and then begin a sort of pecking motion to get rid of the extra blank so there is no ribbon.

I was wondering if someone could please verify that I'm on the right track as far as how to get rid of the extra blank and possibly tell me what M Code(s) I should research to do this offet.

Attached is my Gcode file aswell.

Thank you very much,
Joel

7

G-Code, CAD, and CAM discussions / Re: Mach3 compatible .DXF to Gcode

« on: August 24, 2012, 08:48:42 AM »

My IJ are set to incremental in Mach3 to match the post settings I selected in LC. Where could I possibly be going wrong? Could you please link me to the manual for LC as I cannot find one online.

8

G-Code, CAD, and CAM discussions / Re: Mach3 compatible .DXF to Gcode

« on: August 23, 2012, 10:28:42 AM »

Hi,

This is infact for a Lathe and it is for the version of "LazyCam". I'm just looking to figure out where I've gone wrong as far as posting the .dxf to gcode(i.e why my arcs come out as full circles)

Like you said, would saving it as a .dxf 2012 make any difference?

Thanks

9

G-Code, CAD, and CAM discussions / Re: Mach3 compatible .DXF to Gcode

« on: August 23, 2012, 09:53:31 AM »

Attached is the correct .dxf file however it must be opened in AutoCad 2008.

Could someone please verify if LazyCam posts the correct code? The posted code seems correct for the most part in Mach, however my two arcs have turned into full circles which is not correct.

10

G-Code, CAD, and CAM discussions / Mach3 compatible .DXF to Gcode

« on: August 17, 2012, 02:46:22 PM »

Hi,

I'm wondering if someone could recommend a application that can convert a simple AutoCad .DXF to Mach3 compatible Gcode. The 2D cad file consists of a few simple arcs and the rest are lines. What is a reliable and compatible application to do this job? I have already tried LazyCam, however the gcode it posted is incorrect.

Attached is my .dxf file and the .tap file that LazyCam generated. As far as I know I followed the procedure correctly in LazyCam.

Price is really not a factor, I'm just looking for someone that is guaranteed to do this job however if there is a free software out there that is capable of this please list it.

Thanks