Ok, was just wondering if anyone could help me with my problem (since I know alot of people on here either have one or have used one) - I have done some reading on it and it seems it is common ?
Basically, I was dremel'ing away, wasn't even pushing it hard and had been doing it for literally 5 minutes and it just seemed to stop and loose power. So I turned it off, wasn't hot at all...checked that my bit was in securely (which it was) and turned it on again. Nothing, still the same, so I opened it up and cleaned it all (wasn't dirty at all) and checked everything was making contact (as a few people have suggested, and also added some solder to the pins for a tighter connection...just in case that was the problem) put it all back together and still the same.
So, while it was plugged in and the top half off the shell was off I carefully turned it on and observed what happened - the motor (on the lowest rpm) tries to spin but just sits there, when I turn up the rpm's it spins (and so does the end piece) but not sounding to good, it sounds as if there is something stuck and holding it back from properly spinning [which there definitely
is not as I pulled apart and cleaned and checked everything and it spins freely].
Yes I have cleaned the brushes (and everything else) and no there not screwed on to tight (even though it's not possible to do)...also the 'spline' ? is perfect, not broken or about to break...perfect.
This tool is maybe 1.5-2 years old, keep it perfect condition, always inside and well treated/looked after.
It is a Dremel model 300
Any help would be much appreciated