HELLO.

Do you use Lagler Trio Floor Sander?

I have been using the 16" buffer for final cut atre 100 grit of drum and edger as well as for screening in between of the coats.

I would li ke to know abou this Lagler Trio Floor Sander. What do you use it?
It is just in stead of using buffer?
Do you like the results?

http://www.marquesflooring.com.au/uploa ... r_trio.jpg

Thanks.
Rafal

That machine can be used instead of the drum or belt sander, and also eliminates the buffer for all but intercoat prep.
Downside: its slower than traditional methods.
Upside: does a remarkably flat sanding job with no tear-out of the soft grain.

We havent actually use that specific machine, but one of our sanding crews developed his own design a few years back, and his engineer friend built it for him. Never have I seen such blemish free sanding jobs.

The Lagler Trio was designed for moderate to light sanding. Many users will coarse sand and level the floors first with a drum/belt sander, then switch to the Trio to smooth and sand out scratch. It is slower. These types of sanders are especially good at multi species hardwood flooring, parquetry, grainy wood floors, floors with lots of knots, or any floor that needs to be exceptionally flat. You can get similar results with a hardplate and starting with 60 grit paper and moving up in grit to finish with a 100 to 120 grit screen. Compared to hardplating, the Trio will typically produce better results. They are expensive new.

Here's one being used. At 1:05
http://www.youtube.com/watch?v=clVfwoM2e_8

Another.

http://www.youtube.com/watch?v=OJPoqQyz ... re=related

How about the hardplate do you use it?
I have had troubles to get rid off the buffer marks, I am looking for a sander that would give me a perfect results.
After sanding with drum 100 grit I sand the edreg 100 grit or 120 then buffer 120 grit.
Buffer leaves the circular marks of course very minimal, I have passed with 150 screen.

I have use a new screens by 3M.
After Bura Seal oil based of course marks are not noticable but if you look against the light there are very minimal buffer marks.
I am thinking of that trio or maybe a hardplate.

Hardplate is cheaper so of course I like it better.
Do you think I could use the hardplate in stead of buffer?
Would hardplate even the edger and the drum and not leave any marks?

Thanks

A hardplate will leave MORE circular sanding scratch, not less. Hardplate uses sandpaper, not screen. The reason to hardplate is to flatten a floor and/or remove cross grain sanding marks in parquetry floors. After hardplate, one needs to screen the floors to remove the circular scratch from hardplating. Hardplate is done IN ADDITION to screening, not in place of. If you are having difficulty from circular screening marks, consider NOT screening on stained floors. Sand to 100 or 120 on the big machine, and 100 on the edges. Then hand sand the entire perimeter with 60 grit to remove edger sanding scratch. Vacuum and stain. This was the way it was done prior to screening. OR, learn to use the buffer correctly and how to clock it to minimize scratch. The NWFA offers some great finishing classes, as does Basic, Bona, NOFMA and others.