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### Author Topic: Move specified distance?  (Read 4205 times)

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#### jerds

• 1
##### Move specified distance?
« on: August 20, 2013, 01:18:05 PM »
I'm new to Mach 3 and I'm having trouble figuring out how to do something I think is very simple..

I want to simply move along the X axis an exact amount of distance, for example, 5 inches.
For various reasons I often find myself needing to reference the center of something, or the top of a previous cut that I know where it is, in reference to my current location... So how can I put my router somewhere, and tell the machine to go 5" in the X direction without using the arrow keys and jogging it, getting it close, then slowing it down and bumping it into place?

I hope this is the silliest question anyone has ever seen and they can tell me how to do this simple task and I'm just overlooking an elephant in the room!

#### Picengraver

• 343
##### Re: Move specified distance?
« Reply #1 on: August 20, 2013, 02:09:33 PM »
Frequently I will just enter the distance I want to move in the axis DRO as a negative (if moving positive), and then send the axis to zero.
John Champlain

#### Hood

• 25,835
• Carnoustie, Scotland
##### Re: Move specified distance?
« Reply #2 on: August 20, 2013, 03:06:47 PM »
You could MDI in incremental units, ie
G0 G91 X5 will move the X 5 units positive from its present position
G0 G91 X-5 will move it 5 units in the negative direction.

Always a good idea to follow up a G91 with a G90 to put it back into absolute mode  unless you always wish to be in Incremental mode.
Hood

#### Hood

• 25,835
• Carnoustie, Scotland
##### Re: Move specified distance?
« Reply #3 on: August 20, 2013, 03:08:39 PM »
Also another thing you can do is put it in step jog mode and enter 5 for the step value and when you press the Jog key it will move 5 units.
Hood