Messages

1

General Mach Discussion / Re: What are the units of measure??

« on: February 12, 2013, 12:30:36 PM »

got it figured out, the docs I was looking at had the wrong steps value.  thanks.

2

General Mach Discussion / Re: What are the units of measure??

« on: February 11, 2013, 03:45:46 PM »

I mean distance moved won't match the DRO, which I have been saying all along.  if I move an axis 25.4mm it will read roughly 3.9mm on the DRO.  so, when my gcode calls for 31.75 it tries to move the axis far further than the table allows.

3

General Mach Discussion / Re: What are the units of measure??

« on: February 11, 2013, 02:49:42 PM »

it won't, I can see that when it runs my gcode.  the 31.75 it tries to go to is way off the table, when it should only be 1.25".  I can see this happening.

4

General Mach Discussion / Re: What are the units of measure??

« on: February 11, 2013, 02:00:08 PM »

I'm not at the machine now, but yes, similar to what you said.  if I zero an axis, measure by hand 1", and then manually jog to the 1" mark, my coordinate is 3.9-something instead of being 25.4.  same thing is happening for all the axis.

5

General Mach Discussion / Re: What are the units of measure??

« on: February 11, 2013, 01:39:59 PM »

steps per unit is set correctly and native units is MM.  is there some other configuration that would affect this?

6

General Mach Discussion / Re: What are the units of measure??

« on: February 11, 2013, 12:01:45 PM »

I'll double check the steps per unit but I thought I set it correctly per the specs.  I know i set it to be MM from the start and have not changed it.

7

General Mach Discussion / Re: What are the units of measure??

« on: February 11, 2013, 10:54:20 AM »

isn't that with the alt-U or are you talking about the setting that's used for the motor tuning?  it's MM both ways.

8

General Mach Discussion / Re: What are the units of measure??

« on: February 11, 2013, 10:30:17 AM »

the offset is 0, so that's not the problem. why is it when I zero out an axis, then jog a measured 1", my coordinate says 3.9? that's causing the problem since that Z31.75 is off the table.

9

General Mach Discussion / Re: What are the units of measure??

« on: February 10, 2013, 08:55:14 PM »

Yes, there is a G21.

N110G00G21G17G90G40G49G80

10

General Mach Discussion / What are the units of measure??

« on: February 10, 2013, 07:53:23 PM »

I have the units set to MM with Alt-U and my gcode is using MM also.  However, when I run the gcode I max out the Z axis on this line.

N150G00G43Z31.750H1

This above line is correct, Z should go to 31.75mm/1.25".  However, in looking at the coordinates in mach3 I can't figure out what units they are in?  I did some rough measurements and see that moving 1" reads about 3.9 in mach3.  This is the reason it is maxing out the Z axis when trying to move to 31.75.  Any ideas what is wrong here?