I would like to give an update on this topic.
I bought the RO125 from Robert and he was kind enough to include a number of 5" Mesh Style Sanding sheets. It arrived yesterday.
I was looking or a Festool Sander and I bought the RO125 to work on the seat struts and rear panels for a Garden Bench that I am making from reclaimed Iroko planls that were previously used as baffles in a flocculation tank at a water treatment works (potable) and were under water (with chemicals added) for over 20 years. They then spent about 5 years in my back garden and I have been using them for various things since.
These are the planks in their rough state.
These are what they look like after machining:
Anyway, I digress: Back to the sander:
I had planed, and cut the boards to 5x 28mm x 70mm x 1525mm (1 1/8" x 2 3/4" x 60") for the seat and 2x 28mm x 178mm x 1525mm ( 1 1/8" x 7" x 60") but they needed sanding to 180g in preparation for their robust outdoor finish.
I fixed an 80g Mesh disc to the sander put it into rotary mode, speed 6 and turned it on, God, it was like trying to hold a wild animal, it was very hard to control and I could see exactly what Robert meant. I then put it into orbital mode and whilst less wild, it was still difficult to control and would have been difficult to hold single handed for any length of time. I then turned the speed down to 4 and whilst again it was easier, it was still no cakewalk.
I was determined not to let it beat me so decided to continue to press on with the sanding regardless. After completing one edge and one side of a slat, the 80g mesh parted company with it's backing and shot across the room. I then attached another and within a few minutes this had also shot off the sander. I did persevere as I am working to a time scale but in order to give the slats and boards an initial sanding at 80g I managed to use up all but one of the 80g mesh disks. This was a much greater usage than I had envisaged and was hoping that it was more to do with the mesh disks than normal ones. I think that the mesh discs are probably much more suited to orbital sanding than the centrifugal forces applied when rotary sanding. In my frustration I called N&B and ordered 50 Rubin 2 discs of each 60g, 100g and 180g.
These arrived this morning and I went outside with the Rotex and a couple of 60g discs. Sander set to Rotary, speed 6, 60g disc fitted, extraction on, Go! Hang on a minute! Someone must have broken in overnight and swapped my crappy Rotex for another working one. Worked great, no issues, no hanging on for dear life, the orbital mode was even easier, one handed, no problem!
Due to the wood drying out a bit (I shouldn't have left them indoors overnight) there were a number of shakes and blemishes to fill. I filled all these on all slats/boards with a 2 part filler and left them to dry. I then took them out again and sanded them all smooth to 60g, this took all of one disc and part of another to do. I then filled in all the little 'holidays' and any spots that hadn't taken, and again, after they had dried, used the remainder of the second disc to sand the boards/slats smooth. I then put on a new 60g disc and switched to orbital mode and sanded all boards/slats, then switched to 100g rotary and then orbital before finishing with 180g rotary and then orbital. It is also more economical than I could have believed
I must have spent about 4-5 hours using the sander today and have fallen in love with the little beauty.
The boards are now all like the proverbial 'babies bum' and ready for their stain which will be applied tomorrow.
So, I am now the very happy and proud owner of a Festool Rotex RO125 [cool] and hopefully any issues I have going forward will not cause me to become as disillusioned with it as Robert had become.
Only time will tell! [unsure]