On the issue of limit switches it is common to only have a switch at one end only. The idea is that this is used as the home switch and a limit switch. The other end is protected by a soft limit controlled by the software. ( the software stops the axis before it hits the end stop.
I don’t like this design but it is common, even on expensive machines. It doesn’t protect against software failures or when the machine gets out of step with where the software thinks it is.
I think the design came from machines that had scales or closed loop system that guarantee the axis position.
On my pick and place machine, each axis has 2 switches at each end. If the first one is activated, the software brings the axis to a controlled stop. If the 2nd one is activated an eStop occurs. And yes after an eStop my pick and place machine needs to be restarted. I’ve never used the eStop on the machine except when I accidentally leant on at.
As to the service, you are correct to expect better.
I promote local suppliers as I am one.
In fact I spend a lot of time helping people who purchase controllers and machines from overseas, primarily because they get stranded with no support, so I help where I can.
Cheers
Peter
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