Messages

5841

General Mach Discussion / Re: 4th axis display is showing polygons instead of helix

« on: May 23, 2011, 09:57:12 AM »

Can you post a section of code that shows the problem?

(;-) TP

5842

General Mach Discussion / Re: Mach3 Problems - Rant!!

« on: May 20, 2011, 02:07:34 PM »

Is there some reason you came HERE to rant about your machine AND lack of understanding of building a CNC machine ?

I am with Hood on this one GOOD LUCK getting help here.

(;-) TP

5843

General Mach Discussion / Re: G91 and others problems

« on: May 17, 2011, 03:58:40 PM »

OK Mach does not allow reverse while in G91 mode(inc)

Also the run from here and set next line do not seem to like it either.

Just a thought, (;-) TP

5844

General Mach Discussion / Re: G91 and others problems

« on: May 17, 2011, 03:38:14 PM »

To speed up the feedhold/pause reduce the number of lines in the look ahead setting (gen Config) down to 2 will just a bout stop on demand BUT it may reduce the smoothness of mach with short line segments.

Normally to restart I use  Set Next Line . Normally with flame cutting there is no fancy offsetting involved so run from here does not gain you anything.



Just a thought, (;-) TP

5845

General Mach Discussion / Re: 4th axis question, possibly configuration ?

« on: May 15, 2011, 11:11:01 PM »

Runs ok here.    Try turning OFF all the A rotational stuff in Gen config. Rollover,shortest path etc.

Most Cams such as MC treat the a axis as it only has 360 deg rotations so it does not use rollover etc,

Just a thought, (;-) TP

5846

General Mach Discussion / Re: 4th axis question, possibly configuration ?

« on: May 15, 2011, 10:34:12 PM »

When you use Radius correction Mach takes the workpiece diameter and uses that to set a blended feedrate of the A (up to as fast as it can move). You would normally see this with 3D work where all the axis could be moving at the same time. Being that the A normally moves in Deg per min this will speed up the work up to the A  max Vel as set in config.

Without this a move of  X1.000 A40 F20  would be painfully slow as the feedrate is set for both axis at 40.  the slowest moving axis would be A at 40 deg per min (SLOW) and the X could not run any faster as it is linked to the A move as far as feedrate.

This feedrate for A (1357 DPM) is not very fast. it is only about 3 rpm which converts to about 11 ipm surface speed. About right as far as feeds and speeds are concerned.

(;-) TP

5847

General Mach Discussion / Re: Left arrow key not responding/ spindle speed question

« on: May 15, 2011, 08:57:19 PM »

Reset them all then do a save file.

The MC sounds like  a post problem it is not setting the proper speed based on the tool# info

(;-) TP

5848

General Mach Discussion / Re: 4th axis question, possibly configuration ?

« on: May 15, 2011, 08:29:25 PM »

HUM tested here and I don't see any problem. The A feedrate is only about 11 ipm at the surface.

The feeds are also switching back and forth between feed and rapid.

Are you gaining in the z or loosing in the z?   

Is this a new machine ? Has this code ran on another machine ok?

Just some thoughts, (;-) TP

5849

General Mach Discussion / Re: Left arrow key not responding/ spindle speed question

« on: May 15, 2011, 07:47:45 PM »

Look in Config, System hotkeys.  AND reset the hotkey value for the X- jog.

Most Cams set the spindle speed based on tool selection. Check your MC tool # for proper setup as to spindle speed.

Just a thought, (;-) TP

5850

General Mach Discussion / Re: 4th axis question, possibly configuration ?

« on: May 15, 2011, 06:19:07 PM »

Just a thought, BUT do you have the A axis set to use radius for feedrate??

Config,toolpath, check box
Settings page, A radius = xx.xx

I recall there was a bug at one time that allowed the Z feedrate to be effected by the A feedrate when synced to radius.

What is the gear ratio of your fouth axis?

Just a thought, (;-) TP