4 Axes

[MILLGUY]

I HAVE HADED A 4 AXES ''A'' ROTATE AROUND ''X'' AXES
SHOULD I USED G93 OR G01

THANKS

[Greolt]

I am posting here not because I have a good answer, but after 140 views no one else has.

G93 is inverse time feed rate mode.

I have heard old time CNC'rs say this is the way to do rotary axis work, but I have never taken the time to learn how it is coded and used.

Vectric PP does not, as far as I know, have the ability to produce suitable gcode. I could be proven wrong.

If this is correct then you would need a more industrial strength CAM program to utilise G93.

Controllers such as Shopbot and Mach3 have features built in to compensate rotary axis feedrate when using G1.

If you use Mach3 and need more info on that I can help.

And if you happened to use Shopbot there are other users who could assist with that also.

[dealguy11]

I sometimes code directly for the A axis. I use G1 (for cuts straight down the part) and G3 (for arcs). Never used G93. None of the Vectric products will generate G3 arcs for making convex turnings, so if you want to do that, you'll have to do it by hand.

[MILLGUY]

Thank you for your help

I agree for strait cut,
When a cut a name on the surface of a pen, I used vectric post Mach 2/3-wrap Y2A ATC.
in Mach 3 I edit the file change the G01 with G00.
G01 is to slow.
G00 is rapid move but I rapid at 20 %

Millguy

[dealguy11]

You can probably achieve the same outcome by changing the feedrate for the tool within VCarve Pro itself.

[MILLGUY]

I went into the post file and edit the G01 to G00

[Greolt]

You will have to forgive me if I say, that is a really silly thing to do.

You will have no control of your feedrate. Every thing will be at rapid rate.

Use G1 and learn about Mach's "Rotary Feedrate Compensation" feature.

Start by having a look at this post.

http://www.vectric.com/forum/viewtopic. ... 78#p103178

Greolt

[Mick Martin]

I went into the post file and edit the G01 to G00

G01 or G1 is a feed rate move, G00 or G0 is a rapid move, so I would not change one for the other ......

[MILLGUY]

I have read he other article and I am not able to put in .0001 inthe setting rotation diameter but a 1.000
I have a yellow led in the radius correct

[MILLGUY]

I was able to put in .0001 in the setting rotation diameter

[MILLGUY]

I viewtopic.php?p=103178#p103178
FALLOW IT STEP BY STEP
CHECK ''USE RADIUS AND FEEDRATE''
MY PEN IS .500 DIAMETER
IN THE SETTING /''ROTATION RADIUS'' I PUT IN .2500
I AM BACK ON G94 , G01 FOR THE PROGRAM
G00 IS RAPID
G01 IS FROM 0% TO 100%

THANK YOU FOR YOUR HELP