Huxleywood said:
Holmz said:
My 22000 RPM 2.2-mm stroke 1/2-sheet sander does not remove material as fast as the Deros in 150/5, which runs 1/3 to 1/2 the rpm?
In the end what would such a comparison tell us? In the case of ETS versus ETS EC even if the ETS was better, I would only buy the EC version, and just because it feels better and looks better.
You tossed and orange into the apple basket, but you knew that. Now, if you gathered some data from the Deros and 1/2 sheet sander along with some similar sanders you might be able to make a direct connection between orbit size/speed and wood removal, when surface area etc is taken into account. But without more data it doesn't mean anything. I just found it interesting that the objective data provided a direct link between speed and wood removal given the same paper, area and orbit. While it is common sense to expect this I was intrigued that the numbers were so exact.
...
But I like oranges [wink] ...
I did actually in the past post some numbers, and I had some trouble finding the post.
http://festoolownersgroup.com/festool-tools-accessories/ro-125-a-good-fit/msg450469/#msg450469 reply #10
http://festoolownersgroup.com/festool-tools-accessories/get-your-rs2-e-on!/ reply #9
And totally I agree that some measurement based method to compare the bevy of sanders makes sense.
Ideally:
- The same slab of wood.
- The same operator
- Removal in either mm/minute or grams/minute
- Flatness in thousandths of an inch from flat or (mm) references to some plane using a straight edge and feeler gauges.
So perhaps something like scoring the wood with the TS -1/2 mm deep, and then sanding down past the 1/2-mm depth until till it is flat.
I do not know whether the 1/2-sheet would be better in terms of flatness, but my perception is that it is (which means nothing quantitatively).
The Yellow Mirka is more fun and faster, but the uva115e does pretty good, and with more aggressing grits gets the job done.
I was wrong with the 22000 RPM it is actually 24000 RPM... [eek] And also 450W, which is getting to be ~2/3 of a Horse...
It also is smooth as a can be, with no perceptible vibration.
While the uva115e is stunning, I did not hear good things about the Mafell's random orbital, so I got the Mirka.
Both are great units and compliment each other.
My used Festool DX93 gets the areas where the other 2 cannot.
The only remaining rounding out for sander quiver would be a belt sander.
Huxleywood said:
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In the end it simply tells us what sander was more aggressive which is what the OP was discussing. As for ergonomics and beauty that is a different issue. As for personal preference I prefer my Deros to my ETS EC and rarely use my ETS at all anymore.
Well I like my DEROS too, but some do not like a paddle switch, and the ETS EC is so close to the DEROS as to be scary (IMO).
Without some example of the wood he/she is using we can only get relative removal speeds. If one has nearly petrified wood, then I assume it will scale, but that is just a guess.
The remaining thing to mention is that one an use the Mirka screens with a FT sander. While some believe that the Festool media is great, it is possible that the Mirka has places where it excels. They pretty much only do sanders and they seem to know their stuff.
Which reminds me that I do need to try the course Festool papers in place of the AbranetHD to see if it makes sense, but the projects that require that are some rare for me... I have some pallet wood though [huh]