twisted lines wrote:That's how we cut drift boats
I got the fence done and used with a router,
my little saw is cordless so you cant let go;
and I am having second, third thoughts about reaching under
with it spinning to stop it

The Makita saw I'm using is mains powered. I have locked the trigger with a cable tie, I just turn it off/on at the wall.
Apart from the lack of safety guard, it's a pretty functional setup. It works pretty well for ripping long sticks.
swoody126 wrote:for cutting boat panels from plywood i set up a knee high pair of saw horses w/ a short stack of pywood on them
just enuff plywood to keep the surface flat n level
on top ot the plywood i lay a 3/4" thick sheet of open cell insuation foam
lay the plywood flat on the foam and set the bade depth on your circular saw/skill saw to just go thru the plywood by one saw tooth's depth
set that shallow you can cut curves easier than with a jig saw
sw
Full sized plywood panels are not much problem for me.
Straight cuts I just do with the circular saw. As you say, set the blade so it only just goes through the full thickness. Much easier to steer, and far less splintering of the top veneer of the plywood.
I reckon I have the curves nailed. I have made up a compass that attaches to the router.
The pivot point is screwed to the main panel. On this build I managed to locate the screw holes so they are covered by the joinery inside the cabin.
I mark the curve with a pencil or nail, rough cut just outside the line with the jigsaw, then come back and machine it with the router attached to the compass.
Works very well. Only have to do each curve once. Subsequent pieces are cut using the first as a template.
Even worked on the Generic Benroy rear curve which is two radii.

- Routered curve.JPG (37.67 KiB) Viewed 867 times
On the subject of jigsaws, I worked out why the blade sometimes cuts at an angle.
Its because I try to steer it like a car, If you wander off the line, it's a bit of a natural reaction to try to push sideways to get the blade back on the line. You eventually do, but in the mean time the blade has been flexed at an angle.
I realise now, the proper thing to do is steer the jigsaw like a forklift truck.
i.e. if you want to go left, don't try to push the front of the saw to the left, swing the back end of the saw out to the right, which steers the blade left without trying to actually push across to the left.