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Author Topic: DRO is negative  (Read 2735 times)

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Offline CJCNC

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DRO is negative
« on: July 01, 2010, 12:31:19 PM »
Hi everyone,
This is my first question of probably many..LOL

I have a Syil X4 milling machine.  When I home the table to the limiting switches, the DRO in Mach 3 reads Zero, Which is normal, however, when I try to go in the positive direction (to the right), it should be positive numbers, but they are negative instead.  My are being made upside down.  Is there a button in Mach 3 that I can use to switch this around?

Also, how would i go about making the part bigger, (scaling it up 2X for example)?

Finally, to switch from MM to Inches I believe it is G21 and G22, but were in the program do i input these numbers?4

Thanks in advance

Offline ger21

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Re: DRO is negative
« Reply #1 on: July 01, 2010, 09:56:09 PM »
Your axis is probably running backwards.

The best way to make parts bigger would be in a CAD or CAM program, but you can use the scale DRO's in Mach3, next to the position DRO's.

G20=inches
G21=MM
You can put it in your g-code, or use MDI to change it.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

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Offline CJCNC

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Re: DRO is negative
« Reply #2 on: July 02, 2010, 07:38:30 AM »
Thanks for the reply,
How do I go about changing the axis direction?

Offline budman68

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Re: DRO is negative
« Reply #3 on: July 02, 2010, 07:42:06 AM »
Config menu at the top/click homing and limits/then change the red"x" to a green check mark or vice versa under the axis row in the "Reversed" column.

Dave
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Offline CJCNC

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Re: DRO is negative
« Reply #4 on: July 02, 2010, 08:43:16 AM »
Thank you, I will give it a shot and let you know

Chris

Offline CJCNC

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Re: DRO is negative
« Reply #5 on: July 02, 2010, 08:56:26 AM »
Thanks for your help.  It worked flawlessly.  I never thought it would be so obvious.  I guess all the screens and settings are a little intimidating LOL

Chris

Offline budman68

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Re: DRO is negative
« Reply #6 on: July 02, 2010, 09:04:08 AM »
Glad it helped, and yes, all these settings can definitely be intimidating. I'm far from a Mach 3 power user so I know exactly what you mean  ;)

Dave
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Just because I'm a Global Moderator, don't assume that I know anything !

Dave->    ;)