Extending router bit shaft? - Router Forums
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post #1 of 15 (permalink) Old 03-25-2014, 03:14 PM Thread Starter
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Default Extending router bit shaft?

This question is open to all who can help me out. I have a Wolfcraft table and a Bosch 1617 EVS router. ( The plate is about 3/4" thickness) When I install a bit it doesn't extend above the table far enough. I was told that I could put a 1/2" dowel and a 1/2" rubber grommet to raise the bit up, still leaving 3/4" of the shaft for the collet to grab.

Does anyone have experience with this situation?
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post #2 of 15 (permalink) Old 03-25-2014, 03:58 PM
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Get a Musclechuch to replace the original chuck, will give you about a extra 1/2" and is so much easier to change bits. I love the one I put on my Bosch 1617

Papa Bob
Using a couple of old Craftsman routers & a Bosch 1617EVSPK & a Dewalt DWP611PK Routers in SW Louisiana.
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post #3 of 15 (permalink) Old 03-25-2014, 04:10 PM
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You should use the full length of the collet. This protects the collet from possible damage and gives you all the gripping power the collet is capable of. A 3/4" plate is thicker than need be. 3/8" in the right material is enough.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #4 of 15 (permalink) Old 03-25-2014, 04:12 PM
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Mike
Follow bob's advice or get a bit extension ( always unsafe to start trying to shorting the amount of shaft inserted into the router collet ) first you will think 3/4 inches enough and then you'll think 1/2" ok just this once.
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post #5 of 15 (permalink) Old 03-25-2014, 04:16 PM
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Quote:
Originally Posted by Mike1961 View Post
This question is open to all who can help me out. I have a Wolfcraft table and a Bosch 1617 EVS router. ( The plate is about 3/4" thickness) When I install a bit it doesn't extend above the table far enough. I was told that I could put a 1/2" dowel and a 1/2" rubber grommet to raise the bit up, still leaving 3/4" of the shaft for the collet to grab.

Does anyone have experience with this situation?
I believe I'd pass on that method... a bit risky and I don't like risks..

look into going this way... (there are other manufactures)

Spare parts and accessories-796 - Router chuck extensions with collet-CMT tools

or the muscle chuck...

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

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Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #6 of 15 (permalink) Old 03-25-2014, 07:10 PM
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You can see how far the 1617 can reach with a Musclechuck in this photo. The Grizzly mounting plate is 3/8" thick.
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post #7 of 15 (permalink) Old 03-26-2014, 03:19 PM Thread Starter
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Thanks for the good advice. I think I'm going to pick up this extension. Router Technologies EX 2080 Xtreme Xtension Professional Router Bit/Collet Extension.
I will let you know what I think of this product after I give it a whirl. Thanks again, Mike
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post #8 of 15 (permalink) Old 03-26-2014, 04:37 PM
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Mike, just so you know before you use the Xtreme Xtension it will leave marks on your bit shanks as shown in the photo. The Musclechuck will not do this and gives you 4 times the holding power of the factory collet and nut.

Just so we are on the same page you did remove the sub base plate before installing your router? I think it might be better to consider flipping your top upside down and using a template rout the top down to 3/8" thickness where the router attaches.

Another thing you should know is that Musclechuck is working on a design for an extended version of its chucks that will provide about 2-5/8" additional depth of cut.
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post #9 of 15 (permalink) Old 03-26-2014, 04:52 PM
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Mike that looks like the one that uses a grub screw to hold the bit in. Even without looking at the bit that seems like a bad idea. There's no way that can work as well as something that grips the entire shank.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #10 of 15 (permalink) Old 03-26-2014, 06:56 PM
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Charles, the Xtreme Xtension is a patent infringement of the Eliminator which John DeRosa invented. John sold the rights to another company and then invented the Musclechuck. There is no question that the Musclechuck is a big step up in performance and quality.

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