Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: billJohn1962 on February 03, 2015, 05:50:07 PM

Title: 4th axis setup in mach3
Post by: billJohn1962 on February 03, 2015, 05:50:07 PM

I am setting a 4th axis and for the most part i have it working just fine but for some reason the toolpath display is wrong my a axis wraps around the y axis  i am trying to have it display like a cylinder but for some reason it is displayed like a plate  it seems to cut properly ( alltho so far all i have cut is air ). I have searched for the solution and could not find it if its there please point me in the right direction thanks in advance  ;D

Title: Re: 4th axis setup in mach3
Post by: BR549 on February 03, 2015, 06:31:37 PM

Look IN Genconfig /toolpath and see IF you have it set for X/A. 

(;-) TP

Title: Re: 4th axis setup in mach3
Post by: billJohn1962 on February 04, 2015, 06:37:06 AM

under general config I cannot find that setting I have active plane of movement then as x-y selected although if I go to config then toolpath under rotations I have y axis selected a check mark in a rotations enabled and a check mark and use diameter for feedrate

Title: Re: 4th axis setup in mach3
Post by: Picengraver on February 04, 2015, 02:42:55 PM

I think you also have to set the Rotation Radius in the Settings Tab.  It's been over a year since I used it, so there may be another setting I also used.
John Champlain

Title: Re: 4th axis setup in mach3
Post by: Picengraver on February 04, 2015, 03:03:40 PM

In Config>Toolpath, make sure A-Rotations Enabled is selected also.
John

Title: Re: 4th axis setup in mach3
Post by: billJohn1962 on February 04, 2015, 03:21:49 PM

it is selected and the picture that you posted John is exactly what I'm trying to accomplish but for some reason it isn't that I will try to take a picture of what I see so that you can see what I'm talking about

Title: Re: 4th axis setup in mach3
Post by: rdean on February 04, 2015, 03:49:25 PM

On the "Settings" tab right upper corner input the "Rotational Radius" A as the radius of your part.

Ray

Title: Re: 4th axis setup in mach3
Post by: billJohn1962 on February 05, 2015, 08:00:05 AM

pics of screen

Title: Re: 4th axis setup in mach3
Post by: Overloaded on February 05, 2015, 08:17:42 AM

In your ToolPath Config. screen, if your A is replacing Y in the GCode, then the Axis of Rotation will be "X-Axis"

Title: Re: 4th axis setup in mach3
Post by: Overloaded on February 05, 2015, 08:53:01 AM

Here is a clip from the CNCWrapper help file.
 :)
(I think this is what TP was referring to earlier)

Russ

Title: Re: 4th axis setup in mach3
Post by: billJohn1962 on February 05, 2015, 11:16:05 AM

thanks everyone for their advice and explanation I have it working now and it looks great one more little issue that I found when I turn mock off and turned it back on it said that one of my motor speed is too fast for the kernel I have selected I am sure this is related to the a axis where I have the numberssteps per is 13. 84 velocity is 141780 acceleration is 21975I am sure the root of this is because I'm moving in degrees vs inches is there a way of correcting that to be a realistic number

Title: Re: 4th axis setup in mach3
Post by: Overloaded on February 05, 2015, 11:39:28 AM

Kernel selected (25000) * 60 = 1500000 / Steps Per 13.84 = 108382 max velocity (degrees per min.) for that kernel. / 360 = 301 rpm