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### Author Topic: Tangential Control A-axis...  (Read 4627 times)

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#### Vaklin

• 18
##### Tangential Control A-axis...
« on: August 02, 2009, 06:43:29 PM »
Hi!
Is possible to add some M code with which will be possible to turn on and off tangential control for A-axis?
« Last Edit: August 03, 2009, 02:43:12 AM by Vaklin »

#### Bill_O

• 419
##### Re: Tangential Control A-axis...
« Reply #1 on: August 03, 2009, 10:18:35 AM »
You need to make a macro for whatever M code you want to use and have it toggle oem code 241.
Bill

#### Vaklin

• 18
##### Re: Tangential Control A-axis...
« Reply #2 on: August 03, 2009, 11:19:15 AM »
Found the programming manual. Will do as you recommended. Thank you!

#### Vaklin

• 18
##### Re: Tangential Control A-axis...
« Reply #3 on: August 03, 2009, 03:01:06 PM »
Again about the rotary A axis... As I see the Mach didn't calculate shortest patch and every time uses positive direction. This is in absolute mode, because I don't use incremental and never tried. Also better will be if A axis knows negative digits. Something like this... Zero position (and machine zero) is Y axes on the circle. Possible values +180 to -180. Operators decision go trough 180 or not by check box. In one case calculates shortest patch via 180 in another, change direction regarding machine possibilities.

----- EDIT----
Exactly, Mach 3 behavior suits me. Positive value rotate CW, negative CCW. Will do in post-processor all rest.
« Last Edit: August 03, 2009, 03:20:04 PM by Vaklin »

#### Vaklin

• 18
##### Re: Tangential Control A-axis...
« Reply #4 on: September 12, 2009, 12:08:30 PM »
Now, after week of investigation...

Please, let -0(minus zero) and +0(plus zero) in rotary axes be treated as every another digit. Now + and - relative to zero is always +.