Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: Dougie on January 07, 2017, 09:07:48 AM

Title: Mach3 Starting to behave erratically!
Post by: Dougie on January 07, 2017, 09:07:48 AM

HELP! We are half through our biggest job (600 sheets of 18mm ply) and Mach 3 is starting to behave erratically.

There are 2 symptoms:

1) The 2 X drive stepper motors appear to go out of sync when returning to fixture zero causing the X carriage to jerk violently and derail.

2) Intermittently, starts cutting a file too early (ie short of X destination) on the X axis all the while making bad noise??

Can anyone help this operator. This happens about every 4th sheet?

Look forward to any suggestions. Thanks.

Title: Re: Mach3 Starting to behave erratically!
Post by: ger21 on January 07, 2017, 09:36:53 AM

Loose wires, failing drive or motor? Carefully check both X axis motors and drives, and all wiring that they use.

Title: Re: Mach3 Starting to behave erratically!
Post by: Dougie on January 07, 2017, 09:43:48 AM

Thanks Gerry

The one other main issue is when tracking to fixture home, that's when the X axis plays up. So will do the checks and report back.

Thanks for your speedy response.

Title: Re: Mach3 Starting to behave erratically!
Post by: Highspeed1964 on January 09, 2017, 06:48:21 PM

With it being such a large job, my guess would be mechanical.  Parts tend to wear out, although it could also be loose wires like Gerry said.  But motors and mechanical wear would be where I start after checking those wires.

Highspeed