Man, my Dremel had these problems since it was brand-new.  I gotta try this.

BTW, the worst part about the virbration was that it would cause the speed control 
lever to move itself to faster and faster
settings unless you held on to it!

Scobie Puchtler or Sarah Felstiner wrote:

> I just had some some success quieting down a Dremel that was really
> screaming, especially at highest speed. I thought the bearings must be shot,
> and while I'm sure they could be better, close inspection revealed very
> little actual bearing slop and two other more significant noise factors:
>
> 1.) lower bearing was not being held by the plastic case halves tightly
> enough. With the lower bearing slopping around in the case, there might as
> well not be a bearing at all. If you can get side to side slop in the shaft
> at the chuck end, you probably have this problem, and can easily quiet your
> tool significantly, not to mention getting whatever you put in the chuck to
> turn much more concentrically and free from 'random orbit' (fine in a flat
> sander, lousy in a cutting/grinding tool)
>
> 2.) Case halves are only anchored to each other by four torxx screws, two at
> each end. Middle of the seam is without much support, each half buzzes
> against the other. If your Dremel gets quieter when you hold the case halves
> together tightly at the center of the tool, you probably have this problem.
>
> Fix for Problem #1:
>
> 1.) Unplug tool (duh). Remove threaded plastic collar at the 'business end'
> of the black plastic casing. Remove four torx screws holding case halves
> together. You can use an allen key if you don't have a torx driver of the
> right size. Works fine, no stripping (if you use the right size allen key).
> 2.) Pull the halves apart, then pad the portion of the molded halves that
> hold the lower bearing along the outside edge of the bearing. I used some
> tiny strips of felt-like shop rag. You could probably use a few thin strips
> of electrical tape, or whatever you have at hand. Reassemble the tool, being
> sure all slop is removed.
>
> Fix for problem #2:
>
> 1.)Wrap the center section of the main case tightly with 6 or seven wraps of
> black electrical tape.
> 2.)Let out a little 'yip' of excitement now that your Dremel doesn't sound
> like a tortured banshee anymore.
>
> Lift,
> Scobie in Seattle
>
> RCSE-List facilities provided by Model Airplane News.  Send "subscribe" and 
>"unsubscribe" requests to [EMAIL PROTECTED]

Scobie Puchtler or Sarah Felstiner wrote:

> I just had some some success quieting down a Dremel that was really
> screaming, especially at highest speed. I thought the bearings must be shot,
> and while I'm sure they could be better, close inspection revealed very
> little actual bearing slop and two other more significant noise factors:
>
> 1.) lower bearing was not being held by the plastic case halves tightly
> enough. With the lower bearing slopping around in the case, there might as
> well not be a bearing at all. If you can get side to side slop in the shaft
> at the chuck end, you probably have this problem, and can easily quiet your
> tool significantly, not to mention getting whatever you put in the chuck to
> turn much more concentrically and free from 'random orbit' (fine in a flat
> sander, lousy in a cutting/grinding tool)
>
> 2.) Case halves are only anchored to each other by four torxx screws, two at
> each end. Middle of the seam is without much support, each half buzzes
> against the other. If your Dremel gets quieter when you hold the case halves
> together tightly at the center of the tool, you probably have this problem.
>
> Fix for Problem #1:
>
> 1.) Unplug tool (duh). Remove threaded plastic collar at the 'business end'
> of the black plastic casing. Remove four torx screws holding case halves
> together. You can use an allen key if you don't have a torx driver of the
> right size. Works fine, no stripping (if you use the right size allen key).
> 2.) Pull the halves apart, then pad the portion of the molded halves that
> hold the lower bearing along the outside edge of the bearing. I used some
> tiny strips of felt-like shop rag. You could probably use a few thin strips
> of electrical tape, or whatever you have at hand. Reassemble the tool, being
> sure all slop is removed.
>
> Fix for problem #2:
>
> 1.)Wrap the center section of the main case tightly with 6 or seven wraps of
> black electrical tape.
> 2.)Let out a little 'yip' of excitement now that your Dremel doesn't sound
> like a tortured banshee anymore.
>
> Lift,
> Scobie in Seattle
>
> RCSE-List facilities provided by Model Airplane News.  Send "subscribe" and 
>"unsubscribe" requests to [EMAIL PROTECTED]


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