Festool Angle Unit - "A fix"

It was one month ago when Joslyn used the new Festool Angle Unit. It is a great tool. But, we have found that it is too easily bumped away from 0o. As Gail said when we were cutting panels the other day, "It should have a detent or something to keep it at 0o.  That is where we will use it 99% of the time and we need it to stay there for the accuracy we need in cutting down sheets for cabinets." I couldn't agree more.	\
	One nice thing is that the scale is dead-on accurate. You set it to 0o and you get just that. The problem is when you are nudging the guide rail to the mark, this right angle setting may be pushed away from 0o — no matter how hard you tighten the locking knob.
To create more friction, I cut a small triangle from some 60 grit paper and then added a piece of  double face carpet tape to that. The arrow shows where I placed it — in between the steel bracket and the dial.
	You can just see the point of the sandpaper triangle. The bulk of the arrow is between the steel bracket and the aluminum face.
The arrow points to one leg of an engineer's square. It is a heavy 3/8" thick steel square that fits the Guide Rail and Angle Unit well. It is great for checking out squareness. I am happy to report that tightening the knob has locked the Angle Unit at 0o — and you can't budge it from that position. Yes, you can loosen and make different angle adjustments. This tiny piece of sandpaper makes the Angle Unit the tool that you want it to be.