Auto zero Z axis problems

[JAZZCNC]

Which screen set are you using.?

In the macro that runs the Auto Z code there will be code to change the speed.
To find the code and change go to Operator Menu and select "Edit button script". Then you should see some of the buttons on the screen flashing. One of these will be the button you click on to AutoZ. Click on it and it and inside the script editor it will show you the code for the AutoZ. Depending how the code is written then there will be a feed rate value F500 for instance.!! Change this value to a lower value.
From what you say it sounds like your code just use's a single speed which is a bit basic and not very accurate.!! Better way is for the probe to do 2 checks, first a fast initial probe to get close then a slower one to be accurate. The second probe retracts slightly then does a really slow accurate probe then sets the Z Dro to zero then finish's by going to a specified retract distance then.

If your not sure what I mean or don't fancy messing with code then If you zip and post your Mach profile by going into the Mach folder and finding the XML file with the same name has the profile you use then I'll take a look at it for.

[Jumbo]

Hi Jazz, thanks for the reply.
I'm using 2010 Screenset which has 2 plates, 1 fixed and 1 movable. When zeroing,it will usually stop OK on the first plate but never on the second.I will try to have a look at the macros,I'll let you know how I get on.
Many thanks
Si

[JAZZCNC]

Hi Jazz, thanks for the reply.
I'm using 2010 Screenset which has 2 plates, 1 fixed and 1 movable. When zeroing,it will usually stop OK on the first plate but never on the second.I will try to have a look at the macros,I'll let you know how I get on.
Many thanks
Si

Ah ok gerrys screen then it's different and the way I suggested doesn't work. Needs to be done by accesing the macros directly within the 2010 folder. Thou to be honest I've never had a problem with Ger's screen and was one of the first to have Ger's screen set so been using it from day one.

Which screen set is it.? IE:2010, 2010X, 2010-4, 2010-4X.?

[JAZZCNC]

Ok I just checked both the simple Z Autozero routine and the main tool change routine and both are set to 250mm/min fast probe and 25mm/min slow probe so you shouldn't be getting this problem unless your routine is cocked up or the probe/plate is dodgy.??

[Jumbo]

Its 2010, the led for the contact plate lights up but motor takes about half a second to decelerate!

[JAZZCNC]

Its 2010, the led for the contact plate lights up but motor takes about half a second to decelerate!

Seems strange happenings esp has you've mentioned changing motor settings etc so don't suspect it's overtuned.??
What size machine or more the point is it an heavy Z Axis with large spindle using small motors.? . . . Z axis specs will help or a pic.!! . . Also what are your velocity and Acceleration settings.?

Has it always done this from day one or just developed.?