Machsupport Forum

Mach Discussion => FAQs => Topic started by: DMF on March 28, 2011, 09:48:43 AM

Title: Jog ok, g code steppers just screech
Post by: DMF on March 28, 2011, 09:48:43 AM

I set the steps per to 2000, feed rate at 12. Jog either with mouse or keyboard is ok. When I try MDI and g code the x and/or steppers just screech. It sounds like their trying to run too fast. What did I miss?

Title: Re: Jog ok, g code steppers just screech
Post by: Tweakie.CNC on March 28, 2011, 09:55:59 AM

Hi and welcome to the forum.

Go back to motor tuning and reduce you velocity settings by about 20% to 30% below the point at which they stall and screech then save the setting before proceeding to the next axis etc.

Tweakie.

Title: Re: Jog ok, g code steppers just screech
Post by: Overloaded on March 28, 2011, 10:05:40 AM

... also, when jogging to set the tuning, set  to 100% (pic) to jog full rapid speed, or hold down the SHIFT key while jogging.

Russ

Title: Re: Jog ok, g code steppers just screech
Post by: DMF on March 28, 2011, 02:49:09 PM

I was jogging at 100%, reducing the velocity fixed the issue. Thank you. :)