CNC Apprentice
i have a microrouter that was working fine. it started getting 'caught' as it goes back toward zero on the y-axis, then sees one of the places it 'caught' as zero and stops. this messes up every job we try to run. when using the 'jog' or 'home' command we can get back to the correct zero. we tried lubricating the slides with dry silicone spray. i'm thinking it could be the switch at the end of the y axis movement. does anyone know how to fix/test it?
CNC Guru
What software & version are you running the machine from?
CNC Apprentice
got it! the vacuum tube was getting caught on the top of the y-axis support as it ran back and was causing just enough back force on the y axis motor to see it as a 'stop'
CNC Guru
Great.
The microswitch is only used when you home out the machine. If the stepper motors stall the machine will not know it has not made the move to the correct position and subsiquent moves will be out by the distance it stalled for. Rehoming will get it back on track.
The microswitch is only used when you home out the machine. If the stepper motors stall the machine will not know it has not made the move to the correct position and subsiquent moves will be out by the distance it stalled for. Rehoming will get it back on track.