Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: Matthew_Jones on August 15, 2015, 09:47:41 PM

Title: MM and Inch Motor setup
Post by: Matthew_Jones on August 15, 2015, 09:47:41 PM

So I searched this bit but I am still confused. What I found didn't work.
So I have Chinese CNC they sent instruction that run it on MM, but I want set up a profile in inch's as well.
I know I have to make changes to the Motor Settings.

My Steps per are 320
Velocity is 1500
and Acceleration is 300.

I am not sure which way to times, or divide by.

Thanks for your help.

Matt

Title: Re: MM and Inch Motor setup
Post by: ger21 on August 15, 2015, 10:24:39 PM

steps/inch = 320 x 25.4
velocity = 60

accel = 12 maybe?

Title: Re: MM and Inch Motor setup
Post by: Matthew_Jones on August 16, 2015, 12:39:39 AM

How do you come to that? I understand the steps I just don't understand the other 2.

Thanks
Matt

Title: Re: MM and Inch Motor setup
Post by: ger21 on August 16, 2015, 08:56:37 AM

1500mm/min is about 60 inches/minute  (1500\25.4)
Same with accel (I think), divide by 25.4

Title: Re: MM and Inch Motor setup
Post by: Matthew_Jones on August 16, 2015, 04:26:58 PM

Thanks Gerry. I wasn't sure how everything in those setting related to each other.

While I got your attention is there a place to set the Default FeedRate for jogging. I have to set it under feed rate prior to using jog. It defaults at 6 and I was wondering if I could default it higher.

Thanks again for help.

Matt

Title: Re: MM and Inch Motor setup
Post by: ger21 on August 16, 2015, 06:32:26 PM

The jogging rate is a percentage of the current feedrate, which defaults to 6. In General Config, you can add a feedrate to the Initialization string, like F50, or F150.

Title: Re: MM and Inch Motor setup
Post by: Matthew_Jones on August 16, 2015, 07:53:37 PM

Yep that did it. Your making my day now. I have searched a few times and came up nothing valuable. I am sure its out there but you know google.

I appreciate it a lot.

Thanks
Matt