I just bought the Dremel 1830 but have only run it for about 15 minutes so I have no real experience as yet.
However, I am finishing building a dedicated bench for it. Not big but with a lower shelf where I will store some heavy items to add weight to this bench. [spare table saw motor]. Right now it is in varnish and as soon as I get some carpet underlay I will install and start using it. If the added "bench" weight helps, I will post the results.
I feel that the air nozzle is too short. I would like the dust blown away from me rather than across the work surface. I will have to work on that situation too.
Woodie