What size teeth are preffered for hand saws when cutting out shape from template,and does anybody know where i can get them ,either on Oahu or in the Los Angeles area?
Also has anyone tried a jig saw for the job?I have and I’ve had problems keeping the blade straight up and down.
I always use a jig saw to cut out the outline, you have to be very careful with the angle but if you chock up one flat side of the jig saw base by say 1/4" you have a better chance of holding a vertical line. Sometimes the blade won’t go full thickness so I use a metal hack saw blade to finish off the cut. Be carefull to support the bit that comes off as the weight will pull down and maybe snap off bits you didn’t want to snap off.
The finer the tooth ratio the smaoother the cut, go for a metal rated jig saw balde maybe 24tpi and take it slowly, there’s no rush really…
First, Hicksy went and pre-empted me on the drawing…heee, keep up the good work, man!
Now, you can go with power or you can go with a hand tool. With power, the weapon of choice is a bandsaw with a good big table on it. Even a cheapo three wheel bandsaw with a piece of ply clamped to it will be ok. Second is a saber or jig saw, as shown in Hicksey’s sketch.
Hand saws come in a bunch of flavors, but what you want is something reasonably flexy. Start out with the blade vertical, then gradually ease it as you cut along your line to something more like 45° to the vertical, maybe a little more. That will allow you to cut around a curve, bending the blade a little as you cut along . Stay in the vertical saw cut you started, there may be a little outward angle at the bottom of the cut but you can take that out quick enough.
An 8 point ( 8 teeth per inch ) or coarser saw is probably the way to go. a 5 1/2 point ripsaw is prolly ideal; it cuts a narrow cut ( kerf) that’s easy to stay precise in… Find 'em at any hardware store or yard sale, etc. A lot of guys like the Japanese style saws that cut on the pull stroke, but after 45 years I like the Western-type saws that cut on the push stroke.
Cut to the outside of your marks- this is foam, not teak, so taking off a little more isn’t a big deal.
I generally use a medium size hand saw. If you like a smothier cut line, pic up a hammer and try to align the teeths. But do it on a regular surface. I tried to work with a jigsaw once, but I hate the noise and the stability problems…
All three of those saws have there place. Jig saws tend to have blade deflection. Delta makes one that can hold the more ridged, and longer sawzall blades.
looks like you haven’t found Woodcraft if you are asking where to get a hand saw on Oahu, it is strange to have the largest Woodcraft in the country on Oahu, we are very lucky…
be careful when you do find it, many sharp things that can cut deeply into your credit card…
I have two wood saws, one a rip (fewer teeth per inch), the other a crosscut (more teeth per inch). Both will go through foam easily and more than fast encough, but the rip saw tends to leave a more ragged cut so you have to use less pressure. Ergo I prefer the crosscut saw.
It’s nice, too, if you have a blade that isn’t too wide, so you can do a tighter radius. I usie the narrower end of the saw blade at the nose and tail, and hold the blade nearly perpendicular to the blank there; short strokes. Along the middle of the board, where there’s less curvature and it’s easy to waver from the template line, I make long light strokes with the full blade, held at a low angle to the blank.
Light strokes = smoother cut. But you still, always, have to trim with the surform, or even a planer if you’ve gone wide of the mark.
most shapers use a good handsaw(it’s a tradition), some use a jig or saber saw(the blade wants to wobble), some use a zip saw or router with a long bit(you need to use a template as a guide). i use a cordless dewalt trim circular saw. it gives you a 90 degree cut-kind of shallow but you can trim the rest off with your hand saw. the 90 degree cut is critical. always template from bottom!