Quote Originally Posted by Jonathan View Post
I agree that's not the best of ideas - I don't think I'm the only person on youtube guilty of that, though that's no reason to do it. I was careful in that case not to put my fingers close to the cutter. I made sure the last cut was very light and plenty of clearance so little chance of anything unexpected. Generally I do put tabs on the parts which are routed out at the end to avoid that, or in the case of PCBs stick them down with double sided tape. On the milling machine I've put a bolt through the part in the past to stop it escaping.

It was made from 316 stainless steel (not nice stuff to machine, work hardens), though I'll admit that was mainly because that's what I had at the time. I made it 8mm as that's the biggest collet the router can take. The nut and collet are separate parts on my router, so it would be tricky to make a mount like yours.
Jonathan there is a saying expect the unexpected. Another is act in haste repent at leisure.

Ask Trend Routers if they make an 8mm router cuter that projects 50mm from the collet and see what they say. I have had a few close shaves myself so i know what i am talking about.

Phil