I made some Canexican saw horses for a friend. I liked the design feature that made it so the 2x4 sat in a perfect recess and could be changed out easily.
I was cutting the angles with the jigsaw, using a 3 inch blade, and every cut I made was not straight. I measured some of the angles at 10 degrees which is awful.
If I just run my jigsaw in the air I can see the blade at the end move about 2 cms. I would have expected that to be normal since nothing is support it out that far. Not sure if that is a factor. The blade I was using was not a fine tooth (8 teeth per inch) so there should have been enough space for dust to get out. I really don't think that is the issue since the problem starts at the initial cut as supposed to starting straight and getting progressively worse. Speed didn't seem to matter. I started slow and fast (to attempt to prove a point) and the results were the same.
My jigsaw is a cheap Jobmate one that has served me well for sheet goods but I just cant use it for this reliably.
What I am doing wrong or it is possible my tool or blade are at fault here?