Jigsaws, also called bayonet saws, are the type of tools that get a lot of use in the home workshop. They’re lightweight, easy to use and extremely versatile. To some degree, a jigsaw can perform the duties of a band saw, a scroll saw and even a circular saw. I’ve used jigsaws for all sorts of general applications like gizmatools.com/best-cordless-jigsaw, such as cutting wallboard and rough-cutting large pieces of plywood and lumber before hauling them to the table saw.
But jigsaws are exceptionally great for making tighter, more intricate cuts. The traditional “jigsaw” puzzle, with its tightly curved and complex network of cutout pieces, nicely illustrates the maneuverability of the tool and the detailed cuts that the narrow blade of a jigsaw is capable of achieving. A great saw for both basic home repairs and advanced woodworking, the tool is used to cut curves, holes and scroll work for projects such as cabinets, countertops, furniture, woodcrafts and more.
A better variation of his idea for a fence would be to make a “track board” (small piece of plywood or sheet good) and cut a straight line through it. It does not have to be long just enough to get the cut started. Use that on the bottom, with clamps, of the piece that is actually being cut. Have it stick out at least the blades width so that it will guide while the cut is being made.
Assuming the blade is long enough it should get the cut started vertically without bouncing of the guide track / board. Once the cut is started then it should remain straight. I use the festool body grip which is probobly about the best for vertical cuts because of its deep blade support but it can still cut off vertical if you start to get tired or you are using slightly blunt blades.
Lennox blades are pretty good i used them for a few years, they are great in kitchens for example cutting out hobs and sinks you almost always hit off the metal dowels holding the carcass together(unless you remember to take them out first) these blades just sail through them and carry on cutting. But for vertical cuts the festool blades gave me far better results. When working as a carpenter, it is often necessary to perform tasks in tight locations or awkward positions.
Cutting the ends off joists and rafters, creating openings in existing walls and trimming plywood that has already been installed all require making vertical cuts. When this is unavoidable, do it in the safest way possible. Wear safety glasses to keep falling dust and debris out of your eyes. Be sure that your extension cord is positioned properly so you won’t get snagged or inadvertently unplug your saw in mid cut. Never make a vertical cut while holding the saw with one hand.
Circular saws can save a lot of labor but are dangerous when mishandled. Always keep a sharp blade in the saw, as dull blades are more likely to kick back. Be sure that the blade guard is in working condition and snaps back quickly when the blade emerges from whatever it’s cutting. Inspect the cord periodically and repair or replace it if it is showing frayed wires. If you have to do a lot of vertical cutting, invest in a lightweight saw that will cause less strain on your arms.
Battery powered, cordless saws are lightweight and have no troublesome cord but don’t have as much power as corded saws. In some situations the jigsaw can be mounted to a stand and fixed upside-down on a bench. This allows the material to be pushed into the jigsaw, as when using a band saw. The more common method of use, however, is treating the jigsaw as a hand tool, pushing it over the material.
The limitations of jigsaws lie in their thickness of cut and their trouble cutting a straight line. Typically, stock thicker than about 1 1/2 inches is too thick for jigsaw work. However, the problems of cutting a straight line with a jigsaw can be greatly alleviated by using a saw guide. Rule number one for using a jigsaw: Safety comes first. Get to know your owner’s manual and all the safety recommendations specific to your jigsaw.
Rule number two: Let the saw blade do the work. Manual pressure is not going to help the cutting action, and too much forward pressure will reduce the life of the blade and the quality of cut. For basic jigsaw cuts, follow these guidelines. Standard Vertical Cuts. For vertical cuts, keep the saw’s footplate flush against the cutting surface. You may want to drill a pilot hole for the blade in a scrap section of the material for cuts that are not made from the material’s edge. Start the blade then slowly push the saw forward to penetrate the material.