Yes that looks like a good jig to have. What's the bottom made out of?
Looks like hardboard on top of something.

Chris Merrill wrote:
Thomas Mitchell wrote:

I'm making a set of blocks for my son. I have the rectangular solid
pieces made and want to make some of the ramp pieces. Basically take a
block, 4"x2"x1" and cut on a diagonal. What's the safest way to make
this cut? I've toyed with a few different ideas but haven't come up
with one that says yeah that'll work.


What you're looking for is called a 'taper' sled (or jig).

Here's a picture of one being used to taper a mallet handle:
http://christophermerrill.net/ww/shop/taperSled.html

It's also useful when cutting any small part.