musclechuck nut - Page 3 - Router Forums
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post #21 of 53 (permalink) Old 07-25-2019, 07:58 AM Thread Starter
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Nope, those are "C" spanners, because they are shaped like a C.

A true old english spanner (and lets face it, you cant get an older spanner than an english spanner)
is one of these
https://www.heamar.co.uk/stahlwille-...754019908.html
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post #22 of 53 (permalink) Old 07-25-2019, 09:27 AM
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I think that everyone is missing the obvious, I have three routers with MUSCLECHUCKS and I finger tightened them and the first time the router is used it self tightens!
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post #23 of 53 (permalink) Old 07-25-2019, 09:31 AM Thread Starter
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huh, silly old me, reading the instructions again
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post #24 of 53 (permalink) Old 07-25-2019, 10:06 AM
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Instructions????? Whats That? A piece of paper W/printing only an ant can read , in 6 different languages,with Chinese grammar.

Herb
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post #25 of 53 (permalink) Old 07-25-2019, 12:36 PM
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Quote:
Originally Posted by harrysin View Post
I think that everyone is missing the obvious, I have three routers with MUSCLECHUCKS and I finger tightened them and the first time the router is used it self tightens!
That was my mistake too, I assumed I had to wrench it on and I wound up loosening off quite a bit to get it to run true.

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 #26 of 53 (permalink) Old 07-25-2019, 01:36 PM Thread Starter
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Instructions????? Whats That? A piece of paper W/printing only an ant can read , in 6 different languages,with Chinese grammar.

Herb
Youre dead on there. with the chuck was a piece of paper about 4" square that was written by the same man who engraved the entire works of shakespeare on a pin head.

Luckily, the UK supplier has a couple of brain cells, and supplied an A4 sheet copy. Even then the whole A4 was filled.

I moved it twice to reduce vibration. I think its right now but havent used it on a proper project yet.
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post #27 of 53 (permalink) Old 07-25-2019, 01:38 PM
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I have 2 of them in tables ,and have found that bits that I could tighten in regular chucks will not tighten in the Muscular one.

Just a few thousands smaller shank dia.is beyond the tolerances of the Musclechuck,but will work well in the factory collets.
Just saying,
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post #28 of 53 (permalink) Old 07-25-2019, 01:47 PM Thread Starter
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I was surprised that a bit tightened up in the chuck when I tightened the lower nut up up. I thought it would only be the top screw that held the bit. I had to loosen it, take the bit out, and then gently tighten the nut again.
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post #29 of 53 (permalink) Old 07-25-2019, 05:17 PM
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I was surprised that a bit tightened up in the chuck when I tightened the lower nut up up. I thought it would only be the top screw that held the bit. I had to loosen it, take the bit out, and then gently tighten the nut again.
Bob, I was lucky, i never had any vibration problem with either one. However I have read on this forum of several cases like yours. But I do use a speed control and start the bit at a very slow speed the first time out, then dial in the speed til it starts to vibrate ,then back off a touch.
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post #30 of 53 (permalink) Old 07-25-2019, 11:21 PM Thread Starter
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The instructions (once youve read them) are very clear on how to reduce any vibration, just rotate the unit 45 degrees and retest untill it goes away.

First try and the router grumbled a lot. second try it was obviously quieter, 3 rd try and as far as I could tell it was normal noise. Once I get to actually cut with it i will see if any other adjustment is needed.
But I'm now firmly stuck in "grandad" mode with three under 10's to look after till september. cant let them in the workshop.
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