View Full Version : How do You Design a Circular Saw?
optics.tech
Dec2-10, 09:42 AM
Hello everyone,
Can anyone please tell me how do you design a circular saw such as below image?
Is there available any good book on it?
Thanks in advance
Huygen
http://img25.imageshack.us/img25/9031/59233097.png
JaredJames
Dec2-10, 10:04 AM
Design in what way?
Are we talking about the actual design of one (structure etc) or do you mean how to do it on a computer/by hand?
optics.tech
Dec2-10, 10:36 AM
Design in what way?
Are we talking about the actual design of one (structure etc) or do you mean how to do it on a computer/by hand?
Everything. Theory, calculation, simulation on computer, etc.
JaredJames
Dec2-10, 10:40 AM
Umm, well I don't think there's a book out there for specifically designing saw blades.
Simulation is just CAD work in something like Solidworks, it will be a fairly generic set of concepts you'd apply there.
Theory, well that's something you should learn in a class. We can point you in a rough direction but I don't know if we're going to be able to give you everything you need.
What is the purpose of this project?
What is the purpose of this project?
That is the critical question. Is this to be a bone saw for autopsies, or a tungsten blade to carve marble, or a steak-chopper for a butcher, or what? There are very scientific reasons for the designs of each type.
optics.tech
Dec2-10, 01:22 PM
Umm, well I don't think there's a book out there for specifically designing saw blades.
Simulation is just CAD work in something like Solidworks, it will be a fairly generic set of concepts you'd apply there.
Theory, well that's something you should learn in a class. We can point you in a rough direction but I don't know if we're going to be able to give you everything you need.
What is the purpose of this project?
I even don't got any lecture about designing saw blade in my bachelor of mechanical engineering.
Raw direction is OK for me.
There are types of saw blades for cutting a various size of pipe.
There are types of saw blades for cutting a various size of pipe.
That also depends upon what the pipe is made of and how thick the walls are. Really, man... you're not giving us much to go on.
optics.tech
Dec2-10, 05:36 PM
That also depends upon what the pipe is made of and how thick the walls are. Really, man... you're not giving us much to go on.
Sorry, because I don't have much known about it too.
OK, say the pipe is made from PVC, outer diameter of 100 mm and thickness of 3 mm.
Mech_Engineer
Dec2-10, 06:19 PM
Sorry, because I don't have much known about it too.
OK, say the pipe is made from PVC, outer diameter of 100 mm and thickness of 3 mm.
Why are you designing your own saw blade instead of buiying one already made for the task?
I have to say, I suspect saw blade design incorporates a lot of looking at previous designs to see what worked, making small tweaks here and there, and putting nice sharp tips on the teeth...
There are too many variables. How many teeth, how aggressive are the teeth (geometry), how much "set" and what angles are the cutting surfaces set at. Then there is the little matter of whether you use monolithic blades or affix cutting surfaces. You can go to a home-improvement big-box-store and see more variations on circular blades than you would ever want to try to figure out.
Want to saw cured or green hardwood, cured or green softwood, plywood, chip-board? There are special blades for all of them, and we haven't even gotten into PVC, metals, and other materials. This isn't a subject that's going to be presented in an all-encompassing book that you can read. In fact, if I was an engineer for any of the companies that manufacture circular-saw blades, I would actively resist dissemination of any of our engineering studies that helped my company make and sell the best blades.
What Turbo said... except that he said it far better than I could have.
What Turbo said... except that he said it far better than I could have.Thanks for the props, but I couldn't have delved any further into the subject of engineering saw-blades without running into a brick wall.
Most blades are designed for wimpy consumer-saws that can't save their own asses. If you have a nice heavy saw, you need blades that can take care of the extra power. If you have been smart enough to buy a saw that uses a light-weight casing and a worm-drive to do heavy work, you know what that kind of performance that saw will crank out, and you have an idea if
the cheesy hardware-store blades are worth buying.
Hey, I'm a Red Green kind of guy. Give me a 30 hp Evinrude, I'll duct-tape a chain to it, and the neighbours should just go on vacation for a few days.
nathanlee52
Dec3-10, 07:57 AM
these things are cheap, go buy one and reverse engineer it.
they dis-assemble quite easy.
If you're looking to cut metal pipe, call a plumber and ask them what they use. I think you're looking to cut metal pipe.
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