I have a harbor freight router table, which "mostly works".
However, the problem I'm having is getting 1/4 collets tight to hold the router bits. It seems to me that first I must tighten up the collar really tight ("till it snaps, then back off a quarter turn"), before I can get the router bit to stop sliding in or out. This gets to be a problem when I'm having to set a height at the same time. So far I've been able to support the slot cutter bit to the height above the table with a bit of wood scrap, then proceed to tighten things up. But as I said, it seems that I've tightened the collet "to murder tight" and it "should" be holding, but I can still wiggle the router bit.
So, is shimming the collet in some manner a "good" idea? Let me rephrase that, it seems "a good idea" , but is it a smart one? -- pyotr filipivich Just because they're invisible doesn't mean they are your friends.