tl;dr - If you followed the onefinity setup instructions and have your IR beam input set to auxiliary 5, and then you switch to the Masso native Rapidchange ATC settings without changing the input to Tool Changer 1, it will skip the checks for loaded/unloaded tools.
I had what I thought was a good Masso config set up, but the other day I manually reinstalled a tool after warming up the spindle for the day, torqued it a little too tight, and it didn’t come off with the first tool change attempt. Then to my horror, the machine just lifted it right out of the pocket, moved it over to the next one, and spun up the spindle. Thankfully I got to the E stop before it plunged an endmill directly into the back of one of my collets.
This sent me down a rabbit hole of double and triple checking my tool check heights in the configuration, making extra certain that a loaded tool would break the beam at the configured height, watching the input go high and low in the settings panel, before I finally stared at the config some more and thought “wait a minute, how does it know which input to use for the tool check? There’s no selector for that here.”
So then I went back to the masso docs and finally realized that you have to map the physical input to Tool Changer 1, and then the machine will just automatically know to use that input for the tool checks. The scary thing is if it’s not configured it doesn’t throw any kind of error, it just skips the checks and carries on assuming every tool change was successful.