Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: codegrush on December 03, 2009, 07:17:51 PM

Title: G28 Too Fast
Post by: codegrush on December 03, 2009, 07:17:51 PM

Hi there. I'm trying to home my gantry type cnc with G28 and it works but it travels at rapid speed. I'd like to go at rapid speed to about 1 inch from the homing switches and then gently trigger them. Oh I'm running the G code from a script so if it's not possible to configure mach3 to do it already then maybe it can be done with a script loop. Of course I'm thinking there must be a way to configure mach3 to do it but I just can't seem to figure it out.

if I run "G28 X1" it will rapid to X1 then rapid to trigger the home. if I put a 1.0 in the homing config box for g28 it will just go to X1 and not trigger the home switch.

Thanks for any help, Dave.

Title: Re: G28 Too Fast
Post by: ger21 on December 03, 2009, 09:16:44 PM

What is your speed % set to in Homing/Limits?

Title: Re: G28 Too Fast
Post by: codegrush on December 03, 2009, 09:39:23 PM

It's set to 5% but G28 still goes at rapid speed