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Discussion Starter #1
A few weeks ago, maybe months ago, I posted a thread talking about the safety of the Milescraft guide bushings. The consensus was that Milescraft was an OK product to use and others had used them for years. Well today while routing some dovetails I had the insert that holds the guide bushing come loose and the guide bushing dove into my bit. Thankfully the bit was carbide and it chewed up the bushing and fouled up a half a days work milling wood and fitting everything for the dovetails. Now my question it seems the plastic insert wiggled loose and came off the face plate. I would like to finish the dovetails so do you guys think it would be OK to tape that plastic insert to the face plate. Of course I will be using the locking mechanism but for extra holding do you think the tape will work. Sorry I was so long winded
 

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Bobj3 used to recommend using an o-ring to prevent the guide bushing from loosening up. I think it would be a better choice.
 

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Anything that fails (especially at router speeds) would go into my trash can. If one part is defective then I would think that maybe the steel being used could have internal defects that I could not see and using it is a chance I would not take. A trip to the ER will be much more costly than spending a few dollars more to buy a top rated bit.
 

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Do yourself a favor and toss them out. Next, make (or buy) a sub base that can take PC style bushings and get the metal ones that have the screw ring. A bit more expensive but, even if you don't get hurt, wasting effort like you did will cost a lot more in the long run. The picture below is of the set I have - woodcraft, $40 but some times on sale for $30. I have and use them all the time. Excellent product.

 

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Discussion Starter #6
I was using the Milescraft insert because I had the face plate for it. I looked around last night and found the face plate that will use the PC bushings so I can throw the Milescraft in the trash. I was just trying to get the project done. I am glad I found the old face plate for my router.
 

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Oliver (Prof. Henry)
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Do yourself a favor and toss them out. Next, make (or buy) a sub base that can take PC style bushings and get the metal ones that have the screw ring. A bit more expensive but, even if you don't get hurt, wasting effort like you did will cost a lot more in the long run. The picture below is of the set I have - woodcraft, $40 but some times on sale for $30. I have and use them all the time. Excellent product.

That's the set I use and I like it because their bushings are only 7/64" long so you can use 1/4" thick templates. I have another set made by a different manufacturer that I seldom use because the length of many of their bushings is 5/8" requiring a thick template.
 
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Doug
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I have another set made by a different manufacturer that I seldom use because the length of many of their bushings is 5/8" requiring a thick template.
My cheap woodworking expo purchased long bushings met the belt sander... they work a lot better now!

My lee valley guides (not Porter Cable diameter) had a much shorter length.

1-3/4" Brass Template Guides - Lee Valley Tools
 

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I think quite a few of us have filed or sanded them shorter. Has anyone ever needed one that long? I can't see the point personally.
 

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Yeah, I've never understood not being able to use 1/4" MDF or masonite or what ever as a template. I recall posting that opinion and getting told that you are supposed to grind them down. Huh? Why not just get them short to start with??? Anyway, as was said, the woodriver (woodcraft brand) ones work for even 1/4" plywood.
 

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Are these the ones that came loose. They have replacements listed.1201 - TurnLock? BasePlate/Bushing Set - Milescraft

One of the reasons that the bushing s are longer I think goes back to the Door Butt Templates used the longer bushings,And long ago routers were used a lot to route out the hinge mortises in doors. PC and Stanley had the bulk of the market at that time for hinge mortising so they made them for that operation. The same as the Laminate Trimmer came with a fixed bearing below the base to guide the router during edge trimming and has since evolved into a small versatile router.

I have trimmed a lot of my bushings down to 1/4"-3/8" length too.

Herb
 

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Discussion Starter #14
Herb turnlocks are what I was using. I guess it just vibrated loose. I found my Porter Cable brass guides so I will use those in a face plate that works with the PC bushings. I have used the turnlocks before and not had a problem but let me tell you the adrenaline was spiking when the bit hit that bushing. I bet I broke speed records turning that router off.
 
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