Dust collection performance RO90 Delta head

[Kodi Crescent]

For those of you with the Rotex 90, how's the dust collection while using the delta head?  I'm thinking of using this for some drywall edge and corner applications, probably overhead.  Any thoughts?

 

[BobKovacs]

I've found the collection to be very good. The only exception is when you don't have the whole pad in contact with the surface, like when sanding past an outside corner- even then theres not a huge amount of dust.

 

[tbellemare]

Bob:

I think you hit the proverbial nail on the head. Any sander that has "through-the-pad" dust collection is going to work best at collecting dust if the pad is flat on the surface being abraded. If you are using a flat pad sander and have part of the pad off the work surface, increase the suction to compensate for the free-flow of those suction holes that are exposed. You should be able to tell when you've increased the suction too much (if that's even possible).

The RAS uses a completely different suction policy and that's what makes it special (aside from pure rotation) for tasks like edge work, sculpting, scribing, etc. The dust extraction on the RAS doesn't depend on the pad being entirely in contact with the work. It just requires that the partial-round brush be positioned properly (in the 360 degree rotation) so that it catches what is flying off the abrasive surface.

Depending on how you have the rotating abrasive disk contacting the material, the stuff removed will go a different direction. All you have to do is rotate the brush to be on that side. Rotation of the brush around the sanding head is accomplished by rotating the side-grip handle.

Tom

 

[BobKovacs]

The challenge is balancing between having enough suction for those "off edge" times and having too much for when you have full contact. In my case, I use the RO90 for flushing the edge of faceframes to cabinet sides, which requires you to run past the edge. If you turn the suction up enough to capture all the dust when you're off the edge, its too much for when in full contact. Again, its not a big deal, and still far better than any other sander I've used.

 

[Alan m]

maybe you should get something like one of the little slidy opening valves that are on domestic vacumcleaner handles. that way you could regulate it as needed

 

[JLB builders LLC]

I use a Fein Multi master (or my Bosch cordless version which I use 98% more than the Fein) with a triangle sanding pad for drywall corners and hold the end of the vac hose around where I am sanding. It catches the dust with out any problem.