Havent done a ton of machining but I have had my machine up and running since april or so. I have ran into homing issues twice a few months ago and I just cleared some chips out. Machine sat idle for a while and yesterday I had some homing switch release errors. They cleared up after I poured some water on them but I checked my squareness again and it was out .005 over 2 inches which was previously under .0004. Has anyone used alcohol to flush out the limit switches? No reason my adjustments should have changed so want to avoid resquaring before I try some things.
Planning to purchase the fancy limit switches but just not in the books at the moment.
I cleaned mine with WD40 when they got gummed up. I wasnt able to get them completely functional without opening them up and cleaning the contacts inside.
There isn’t anything special to opening or cleaning the switches, just take care not to let the spring fly off to Narnia.
I also plan on upgrading switches…eventually, but the originals have functioned without a hitch since cleaning and giving them the WD treatment. When they eventually fail again I’ll probably pull the trigger on better switches.
Yea… Seems a bit of a poor design choice to require homing and squaring be coupled, when squaring relies on accurate limit sensing, and the OEM switches are just not accurate.
See:
Personally I’ve de-coupled these two, and only square up the machine when I am certain the switches are clean. Normally, if I don’t suspect something is out of whack, I just run homing with a single switch that closes both L and R circuits.
yeah id like to avoid opening them, Dont want to resquare my gantry until i have the new switches. Going to flush with WD and then final flush with IPA and see if it helps my issue in the mean time.