Hi, I have a Festool 6 inch orbital that I usually keep 120 girt on it. I have sanded a lot with this sander. I cant stop from getting sanding swirls, doesnt matter if its brand new paper or old. Brand new is a for sure for them though. I have it sped up to full speed, I have dialed it down as well. The slightest pressure causes them. The harder I push the worse they are ( which is expected). If theres and uneven joint and I want it to sand it down by pressure its hard to get the swirls out afterwards. I am using Rubin 2 paper sanding birch or western maple or walnut for the most part lately.
Is the festool paper too thick? The holes too thick of edges that cause the swirls? The pad maybe too stiff ( I think its a medium)? 5mm orbit too big? Suggestions?
A friend of mine has a Makita that doesnt make the swirls, his holes on his sandpaper are much smaller than the Festools.