Is laser fencing not mandatory in the US?
In woodworking the new trend is to put pads on the gantry with pressure sensors so if the machine smacks you it stops.
That is really great when you are testing new programs you can see what is happening without binoculars. The only downside is that they limit the max rapid speed on the machines so when it hits someone they are much less likely to get knocked over.
This is the machine I was running like 20 minutes before posting that comment. https://www.youtube.com/watch?v=7AuwwPdBSf8
I have no idea why the people in that video cut a hole in their door. Seems like a really stupid idea to me. But you can see in a normal machine that someone hasn't modified to be more dangerous you can't get to the the spiny sharp bits.
So in order to sell that machine to me I would require a safety compliant door. My guess is a new door would be around $2800. That is an expensive hole.
What I know that you don't is that that machine is sold with a camera as an additional option. So there is already a place inside for mounting a camera. They would just need to make their own mount. Otherwise if I was just filming a demo to sell the machine I would override the door closed safety interlocks and film with the door open temporarily.