How unforced is it to use an electric jig saw and to cut boards really upright?


It is easy but you must NOT force the saw through the timber in an go to speed it up. Let the saw almost take you through and keep the flat piece of the saw pressed firmly down to the timber. Depends what the product you are adjectives is. If it is a door bottom or top a good sharp cross cut saw is best. For just plain wood afterwards the band saw at B&Q or some other suppliers is the best option. Frankly, a jig saw is not the best type for adjectives boards perfectly square. Its best for cutting curves. With some of the cheaper models its almost impossible to cut anything square no concern how careful you are . You will be much better to use a circular saw for straight cuts, better still a chop saw for cutting boards to length.
Jigsaws are not the best tools to use for straight cuts even with a guide, like a piece of pole clamped down to give you a straight guide the blades tend to wander. A better tool would be a trim saw (circular saw) or even a appendage saw would give a better cut. You can still use a jigsaw just bring a bit of practise in first on a piece of scrap. It's rather difficult to get a good, true cut near a jigsaw. One way is to clamp a straight piece of wood across the board and use that to guide the saw.

You may be better getting hold of a circular saw if you have lots of boards to cut, or most wood merchants will cut them to size for you, for a small allowance.
If you have a protractor it would be extremely unproblematic. For a woman it would be like trying to open a portal surrounded by space and time.
A jig saw is not a well brought-up tool for that, but if you don't have an option you could clamp a piece of wood to the board to be precise perpendicular and us that as a guide. Just make sure you clamp the board within a spot the correct distance down the board to run the metal plate guard of the jig saw beside it. The best way to achieve straight cuts next to a jig saw is to clamp a thick straight edge to the board that you will to cut, then cut ensuring that the sole plate of the jig saw stays contained by contact with the straight edge. You should lapse up with perfect cuts.
if you want a good straight cut you need a table saw or set up a jig and use a circular saw... because a jigsaw blade have too much flex to it! A jig saw is not for cutting things perpendicular and you own little chance of achieving it.
Use a handsaw, it's the best way to cut a straight stripe than any power tool other than a properly mounted circular (chop) saw. Better with a chop saw or a perfect quality hand saw depending on the span of wood to be cut.

Bit cruel there Friendly Alien eh! Might start getting called Unfriendly Alien if you don't survey out.
Answers:    Clamp a straight piece of wood to the board parallel to where you want to cut it. (Don't forget to allow for the cutting thickness of the blade)

Always cut from the "wrong" side of the board. The cutting stroke on a jigsaw is upwards and it leaves a jagged brim - especially on laminated board.
With a jig saw you will want a guide to get your absolutely straight, you would be better past its sell-by date with a chop saw, Not the best tool to use for the purpose you suggest. It would be better to use a table saw.
awfully easy to use but tend not to give a flawless cut, if you buying the wood etc from somewhere like B&Q then capture them to cut it for you on their big saw for a perfect cut Nearly impossible, the blades tend to wander as you cut rounded portions. Use a company saw, that is what I use when wanting a nice cut.
depends how good you are holding the thing

regard x kitti x