Messages

621

General Mach Discussion / Re: Threading cutting Tool path running incorrectly in Mach3 turn Version R3.043.066

« on: March 31, 2017, 08:09:35 AM »

Mark,
In the Simple Threading wizard you can check if you are exceeding your configured feedrate and acceleration and it will give you a warning. Software is rather dumb and what you say it will do or try to!

RICH

622

General Mach Discussion / Re: Threading cutting Tool path running incorrectly in Mach3 turn Version R3.043.066

« on: March 26, 2017, 11:07:03 AM »

Some comments on the posted code FWIW....

N10 G90 G95 G18
c- G95 is fine if your your using spindle control but if not then G94 may be more appropriate and G94 rate can be sellected in the tool setup in Fusion.

N12 G28 U0.
c- U0 is Fanuc and not Mach3 dialect of code. In Fusion all my code  is based on X&Z=0, which is for a front tool post. The way I work is to set the master or any defined tool in Mach to the X=0 and Z = whatever ( BTW....via probing) and manualy define a home position and part location. No automation here, but also use a custom screen set to make things easy!

G28 can be tricky and get ya if your not carefull in it's use!


N15 M8
c- got rid of the coolant as i don't need the command



N17 G97 S300 M3
G97 is a Fanuc code for constant suface speed
C- since my spindle is not controlled, don't want the command but keep the S and M3
command so that I get rpm readout and what rpm defined in Fusion

 
N124 M9
N125 G28 U0. W0.
N126 M30
%
C- Got rid of the G28, similar problem as what is posted in the start of the
of the posted code and no need to turn the colant off here.In use. desire / want a
specifc G28 with defined intermeadiate point.



Remember that what gets posted is based on Fusion defaults and your definitions
as you progressed through the process ....drawing, setup, tool definition, etc and all
that should be in agreement with your Lathe setup / tools and the way you work. So depending on what you did you may see additional coding posted.

Frankly most of the stuff here is always one of a kind, just want the actualy gcode for
the machining, and add some minor code as needed to take care of how a tool change is done and also if the program will be run for multiple part cutting using differnt work offsets. 


RICH

623

General Mach Discussion / Re: Threading cutting Tool path running incorrectly in Mach3 turn Version R3.043.066

« on: March 26, 2017, 09:50:43 AM »

Mark,
I use Mach3 version 062,with  a parallel port, and threading works just fine. I have the G76 set so that it posts G32 with comments.
I like to monitor the threading cycles as they are being done.
See page 47 in Threading  On The Lathe - Mach3 Turn on how to modify the Macro M1076 if  you desire to G32 output of the code.

Not sure what your lathe setup is and that may be your problem and why they recommended what they did.

Not sure what Fusion post processor you are using. You can download one called mach3 turning.cps from the Autodesk site.
Here is a link :  
http://cam.autodesk.com/posts/?p=mach3_turning

I don't want to want to post the modified post processor since it's modified to work with the way I work and you may desire some of the posting that the generic one posts.

Your posted code runs fine here and note that the G28 ( see attached )will cut  through the material.

RICH

624

G-Code, CAD, and CAM discussions / Re: G-Code newbie - G54 always in code from Fusion?

« on: March 23, 2017, 08:12:16 PM »

gibson22,
Post is off topic.
have you  watched any of the tutorials or  read the Mach manuals?

RICH

625

General Mach Discussion / Re: Threading cutting Tool path running incorrectly in Mach3 turn Version R3.043.066

« on: March 22, 2017, 08:43:51 AM »

You may want to download the version revisions list.
Users  have said 066 has is problematic and I have never bothered using it and all current work I do is with .062.
Relative to Fusion 360 Lathe, I modified the Mach3 post processor to get rid of some of the start and end posted code and few other commands.
It all depends on how a user is setting up for the work and their configuration. G28 & G31  may not behave as one expects and as described in
the manual.

Fusion 360 lathe is rather nice , but there is a learning curve to it.

Rich

626

General Mach Discussion / Re: Threading cutting Tool path running incorrectly in Mach3 turn Version R3.043.066

« on: March 22, 2017, 08:25:14 AM »

In the Artsoft site:

On left side of page:
Software & Downloads> Downloads & Updates
click the FTP Downloads tab
click FTP Server - Main Menu
Click Directory Mach3

Now you will see the different versions available for download

 RICH

627

General Mach Discussion / Re: Threading cutting Tool path running incorrectly in Mach3 turn Version R3.043.066

« on: March 22, 2017, 07:57:11 AM »

What post processor are you using in Fusion for the lathe?
Code is ok and looks like the Fanuc pp is being used. ( note the G28 code and use of U & W )
Do you have work offset values for G54 in Mach?

Try version .062.

RICH

628

General Mach Discussion / Re: Threading cutting Tool path running incorrectly in Mach3 turn Version R3.043.066

« on: March 21, 2017, 07:34:40 AM »

I would suggest you use version  R3.043.062 as 066 is buggy.

RICH

629

G-Code, CAD, and CAM discussions / Re: G-Code newbie - G54 always in code from Fusion?

« on: March 20, 2017, 08:29:43 PM »

FWIW,
Have not used Fusion for the mill / router but for the lathe module, relative to the posting of the G28..........

I have not found anywhere, other than changing the post processor, that will change the posting of the G28.
Changing the conditions of the parameter Go Home under Compare and Edit for example, the G28 still gets posted
at the beginning and end.

I don't recommend changing the post processor unless you understand where, why and how it should be done.
There are a few videos about understanding / navigating the post processor.

RICH

630

Share Your GCode / Re: hello new here to mach3 and also new to gcodes or cnc for all that

« on: March 19, 2017, 08:23:38 PM »

do you recommend some where to get some training

Save yourself the time looking all over the place to learn about gcode  etc.
Just buy Peter Smid's book CNC Programming Handbook, read the first 125 or so pages and start studying it.

If your trying to use LazyCam then read the manual for it in Member's Doc's. You may want to play  with the wizards available.
Cambam won't break the bank and produces good code.

Enjoy the learning curve.......

RICH