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post #1 of 8 (permalink) Old 12-28-2014, 06:03 PM Thread Starter
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Default Hello I am new to the forum as well

I just joined a few minutes ago, I am trying to find some information on why my router table lift is letting the bit drop during use , instead of staying in place. It raises just fine, but drops as I am using it , not all the way but a significant movement. Any chance you would have any ideas ?
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post #2 of 8 (permalink) Old 12-28-2014, 06:22 PM
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Quote:
Originally Posted by rat86man View Post
I just joined a few minutes ago, I am trying to find some information on why my router table lift is letting the bit drop during use , instead of staying in place. It raises just fine, but drops as I am using it , not all the way but a significant movement. Any chance you would have any ideas ?
thought I just saw this else where...
don't mind me I get confused rather easily...

which one do you have (lift) and what is your setup???

is it the bit that is moving, the router motor or lift??? all three???

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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Last edited by Stick486; 12-28-2014 at 06:26 PM.
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post #3 of 8 (permalink) Old 12-29-2014, 11:05 AM
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Sounds like me when I try lifting my body from this old chair! Welcome. I bet you'll get an answer. Great forum and very knowledgable folks.
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post #4 of 8 (permalink) Old 12-29-2014, 11:43 AM
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At least some of the ones I've looked at had a spring load on the adjuster. If the spring isn't holding anymore it could vibrate itself down. As Stick suggested it could also be the bit or the lift. Chuck a bit and mark the shaft where it goes through the collet or collet nut. Also mark the router in its clamp. Do a test cut(s) until it moves and check the marks. If nothing changed there it's the lift and we have a starting point to work from.

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post #5 of 8 (permalink) Old 12-29-2014, 01:11 PM
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Had a Rockler lift that had a rubber grommet that supposedly held the lift in place. But it simply didn't work so I've junked it. What brand lift do you have?
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post #6 of 8 (permalink) Old 12-29-2014, 04:08 PM
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Im guessing one and/or the other...

Thread backlash and/or not locking after adjustment...

Might you be going higher than needed, then lowering to desired height...this sets up some space on the bottom side of screw thread for the router to drop under vibration. Likely to happen if router is also not locked in place...

Welcome...Nick

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post #7 of 8 (permalink) Old 12-29-2014, 05:53 PM
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Hi Richard,
I'm new to, and am finding the forum a wealth of information and ideas.
My makita plunge router has a locking leaver near on of the arms and I lock the router into position once I have the height required.
Yesterday I removed the collet from the router and gave it a good clean. While I was at it I inserted a piece of 1/2" dowel into the bottom of the collet neck ( about 3/4" long ). I also pushed in an O-ring to hold it in place.
This gave me two benefits
* once the bit is in it cannot fall any further in use
* my smaller bits won't disappear when I'm removing them.
Please keep us informed as to what you come up with.
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post #8 of 8 (permalink) Old 12-29-2014, 07:13 PM
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I see by your profile you have plenty of tools and experience...how far is the router dropping...?

Is there any play in the lift...? Is the lift new...?

Nick

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