Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: Rimmel on July 01, 2016, 05:55:12 AM

Title: Mach3 crashes using LPT but not USB
Post by: Rimmel on July 01, 2016, 05:55:12 AM
Hi, I until recently have been using a UC100 usb notion controller. However due to technical problems have had to go back to using the LPT1 port.

When using the USB I could leave the mahine on for days or weeks without a single problem, howveer since changing to back the LPT1 the WinXP machine crashes (locks up completely) at least once every 24 hours.

Using:
Mach3  062 
LPT1 0x378  ECP mode
25000hz

Anuy ideas?

thanks
Rimmel
Title: Re: Mach3 crashes using LPT but not USB
Post by: Rimmel on July 01, 2016, 06:18:10 AM
Aditionally - I have changed absolutely nothing else! Literally a switch between USB and LPT1
Title: Re: Mach3 crashes using LPT but not USB
Post by: Tweakie.CNC on July 01, 2016, 07:11:49 AM
Perhaps try running the DriverTest (Mach3 folder) and see what kind of results you get.

Tweakie.
Title: Re: Mach3 crashes using LPT but not USB
Post by: Rimmel on July 01, 2016, 07:51:17 AM
Hi sorry mean't to say the drivertest comes back perfectly with an excellent result.

I was wondering what the recommended settings were for the LPT port? e.g ECP, EPP using an interrupt or not?

thanks
Title: Re: Mach3 crashes using LPT but not USB
Post by: Tweakie.CNC on July 01, 2016, 07:58:45 AM
Quote
I was wondering what the recommended settings were for the LPT port? e.g ECP, EPP using an interrupt or not?

I think it's a matter of if it works then it works.

Tweakie.
Title: Re: Mach3 crashes using LPT but not USB
Post by: Hood on July 01, 2016, 08:16:57 AM
Probably won't help but worth a try I suppose, go to your plugin folder and remove any plugins you do not require, especially the one from the previous controller.
Alternatively rename the plugin folder to something like OldPlugins and then create a new (empty ) folder called Plugins.
Hood
Title: Re: Mach3 crashes using LPT but not USB
Post by: Rimmel on July 01, 2016, 08:26:06 AM
Hi - I've already removed all the plugins except the Flash-Flashscreen plugin (is that needed?). Never had any apart from the UC100 - and that is gone now

I heard there was a list of compatible PCI LPT cards, anyone know where? I might try adding one.

thanks
Title: Re: Mach3 crashes using LPT but not USB
Post by: Renatox_ on July 05, 2016, 08:30:00 AM
Check if you lose position, see the axis of the motor and check the angle be correct, make a mark.
If you lose position then is entering noise for the cable paralell, the mach3 then receive alarm of servo for crashing, check his shielding

Because change a parallel port, Which problem technical you have?

Renato