So I've been quietly working away on my Adirondack Chairs and have run into a problem with getting square cuts from my jigsaw.
It's a Makita JV0600K, about 6 months old. Infinitely variable speed from 1 - 5 (500-3,100spm) I have it set on 4. 4 orbit settings from 'none' to 3. I've tried all settings. I'm using a Bosch t234x blade (variable sized teeth 8-12tpi, .06" thick).
I am cutting 1.5" pressure treated pine. In this particular instance, I'm trying to cut a dead straight line.
What's happening is the first 3-4" of cut are pretty good. Then it starts under cutting. After the full 6" or so of cut, it's tilted fully 1/8" towards the inside, undercutting the workpiece.
I've tried cutting really slow. I am using a shop-made straightedge guide. I THINK I'm holding the jigsaw flat to the workpiece; I'm trying really hard to do that, at least.
After Googling, I think I may be using the wrong blade. I think I need something thicker w/ fewer teeth, such as a Bosch t144DP (6tpi, .07" thick).
What says FWW? (other than "Buy a bandsaw!" )