A cheap hair dryer should work fine too.
i use this one, a few quick passes on the surface and all is good.
Rotary tumbler not good for delicate/soft materials, small parts, for solid - ok.
Remember, contents spin all the time and can to destroy. Vibrator only shake extremely frequently.
Rotary tumblers work the best I’m the one who suggested it to barnecules on the ultimaker forum. I purchased a vibratory tumbler and have tried different media but the result is less than impressive for the amount of time you leave them in there for. You will loose detail with a rotary but that depends on the media used and the length of time kept in there for.
@ techbuilder :
I’m very interested in gathering Information about post processing techniques … do you maybe have some fotos of “tumbled” prints you can show ?
thanks !
Andreas