blueman wrote:
I bought a sheet of 48x24" plexiglass at home depot (maybe about 1/8"
thick).

I am trying to cut in 7" slices (each 48" long).
Per the instructions from the Home Depot guy, I bought a blade that is
supposed to score the Plexiglass and then you snap it.

Well, I am having 2 problems.
First, I am finding it hard to score precisely on a straight line
(even though I am following a steel straight edge). The blade keeps
wanting to slip away slightly.

Second, after scoring with several passes, when I snap it, it ends up
breaking only partially along the line (and the rest breaks away at a
short angle).

One solution, would be to just be more careful on scoring the line and
then scoring even deeper with more multiple passes.

Are there any EASIER and MORE accurate ways to cut plexiglass?
Can I use a regular table saw blade (or will it shatter it)?
What about a jigsaw or a dremel?

You have been given good advice on cutting plexi. Score and snap is
the way to go. a freind has a shop where he fabricates plexi. there
is a special blade designed for the purpose but it isn't common. YOu
have to go to a plexi supplier to find it. It has a hook on the end
so that the cutting edge faces toward you and he always scores by
draggin the blade toward himself. then he snaps it over the edge of
the table. He makes one heavy score and then snaps. he then uses a
buffing wheel to smooth the edge.