Muscle chuck and MOF001

**Lappa** · 2nd January 2018, 01:57 PM

Has anyone purchased the Muscle Chuck for the Triton MOF001? If so, has it reduced any vibration you may have had?
Last year I sent some large and long Carbitool bits back to the supplier for testing because they were causing a bad vibration in the router, mounted in the table. All but one passed their testing and they suggested a collet problem. I had purchased spare chucks when in England the preceding Christmas so I dragged them out and fitted the 1/2” one and the vibration was a lot less but still there.
I can undo a bit that vibrates, turn it a bit, retighted it, check for vibration etc. etc and reduced the vibration to almost zero BUT it’s a PITA every time you use a large or long bit.
So looking at the Muscle chuck, it’s a “one time” set up and mark and so it looks like a good thing.
Also, what are their reducers like, as if i’m to buy the chuck, I will need 1/4, 3/8 and 8mm reducers.
Any feedback would be appreciated.

**Bohdan** · 2nd January 2018, 02:13 PM

Because the chuck extends the length of the shaft past the bearing and it is not perfectly balanced you still need to do the slight rotation balancing to minimise vibration initially, but you only need to do it once. You can mark the shaft and chuck so that if you remove it you can easily put it back in the same spot.

The benefit is mostly in the fact that you can change cutters above the table without having to lock the shaft or even reach under the table.

**Old Hilly** · 3rd January 2018, 05:34 PM

Bohdan, Do you absolutely have to do the balancing thing when you fit one of these chucks into a router for the first time? I had this silly idea (from reading the advertising blurb) that it was just a case of fit the new chuck into the router shaft, tighten the nut and you were good to go. Probably a bit of wishful thinking on my part?

**Lappa** · 3rd January 2018, 05:58 PM

As I mentioned in my first post, it’s a one off requirement. It’s used to match the chuck to the spindle.
Watch the video “Quick change router run out solution”

Quick Change Router Chuck Instructions | Musclechuck Assembly

**derekcohen** · 3rd January 2018, 06:39 PM

Originally Posted by Old Hilly

Bohdan, Do you absolutely have to do the balancing thing when you fit one of these chucks into a router for the first time? I had this silly idea (from reading the advertising blurb) that it was just a case of fit the new chuck into the router shaft, tighten the nut and you were good to go. Probably a bit of wishful thinking on my part?

OH, the first time I used a Muscle Chuck was with a GMC router in a table. This needed tweeking to minimise any vibration. The GMC was replaced with a large vintage Elu router. This did not require any adjustment at all. To answer your question, it comes down to the run out on the arbor of the router. The Muscle Chuck will tend exaggerate minor run out. If there is little to nothing to start with, then you may not need to make any adjustments.

Regards from Perth

Derek

**Bohdan** · 3rd January 2018, 07:33 PM

Derek I also fitted it to an ELU MOF177 and had to go thru the balancing procedure.

I think that it is pot luck how bad the balance will be when you first fit the chuck. If you are lucky the chuck lands in the balance spot the first time but all chucks and shafts have slight errors. If they add it makes it worse but if they cancel then the vibration is improved.

**Old Hilly** · 4th January 2018, 06:06 AM

So is this a "fit it and see what happens" process or did you go through the precise measurement process like in the video? The cautious me says do the precise measurement thing and avoid the potential "change of underwear" situations (which is what I would have done before the fire) whereas I guess we have to use the "fit and hope" process which seems a little inexact for something revolving at over 10,000rpm. It seems like a bit of a gamble to me and if the chuck has to be removed at any time I guess we need to do the setting-up process all over again?

**derekcohen** · 4th January 2018, 08:11 AM

It seems like a bit of a gamble to me and if the chuck has to be removed at any time I guess we need to do the setting-up process all over again?

OH .... no, that is incorrect. Once you have it dialled in, you mark the position of the parts (with a scratch or texta). That way you can always return to it if needed.

The Muscle Chuck can be a game changer.

Regards from Perth

Derek

**Old Hilly** · 6th January 2018, 06:45 AM

Sounds simple enough, probably no need to ever remove it if the router is only ever used in a table setup.

**labrat** · 18th March 2018, 12:24 AM

Hello Derek,
I bought a muscle chuck a while ago and as you say it is a game changer. It is a great addition to my router table. This is not a put down of the chuck it just shows what a precise bit of kit it really is.I have used it exclusively with 1/2 " shaft router bits until I could not find the bit I wanted except with a 1/4" shaft and then found that the carbitool and whiteside and unbranded 1/2 to 1/4" conversion sleeves will not grip the 1/4" shaft when used in the Musclechuck. I have now ordered at great expense (the shipping was a lot more than the conversion sleeve) a muscle chuck brand conversion sleeve. From the little I can find on the internet, the very small amount of movement with the clamping of the muscle chuck is not enough to work with the less precise brands of conversion sleeve. They tend to be made to the lowest common denominator in an attempt to make them compatible with all chuck types where as the muscle chuck conversion sleeve is made to work with their brand specifically.
You may already have experienced this but I thought it may be helpful to anyone about to buy a muscle chuck, but a conversion sleeve at the same time.
All the best.

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