Power hacksaw. By JSK-koubou. 28:48 video:
https://www.youtube.com/watch?v=_ppnG3WTgNA
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Power hacksaw. By JSK-koubou. 28:48 video:
https://www.youtube.com/watch?v=_ppnG3WTgNA
Excellent job. Best I've seen. We need more like this and less of the dumb stuff. :)Quote:
Originally Posted by Jon
It is a nice build. Not being at all critical of the design or execution of it.
I do have to ask the question. What are the advantages of a power hacksaw over a horizontal band saw? There much be advantages. Even a portable band saw, can be very effective and accurate.
Band saw uses every tooth on the blade and is always cutting. Chips are constantly ejected from the cut. A hacksaw very seldom uses all of the teeth. Typically 1/2 or less of the teeth are in use. When cutting wide stock, the center teeth often never have an opportunity to clear chips. By design a hacksaw is only cutting 1/2 of the time it is in use.
I have used a power hacksaw many times over the years. I cannot think of any situation where is is superior to a band saw.
Once more, these comments have nothing to do with the quality of this build, just questions for discussion.
Hello Hemmjo:
While I have a 6x4 band saw, here are the advantages of a power hack saw:
The blades cost less and are easier to replace, a plus in a home shop. Since I don't have a band saw blade welder when I brake a blade I toss it.
You can saw through a hole with out braking the blade.
Thicker blades can be used for heavy cuts.
There might be others too.
Carl.
Nice, over-engineered build... but, if that's what floats your boat... great! I would never have a machine in my shop that distributes swarf on itself.
SO... you don't have any machines in your shop? All of the machines I have swarf all over themselves. I must not be using them right.Quote:
Originally Posted by Gadgeteer
What is your secret? I am so curious what machines you might have that do not swarf all over themselves in operation.
PS: It would be nice if the stroke was adjustable. You could slot the bar that is attached to the motor. Carl.
I likewise would like to know. Being a machinist all my live and I never figured it out. Hmmmm ??
Hi Gang:
Really the mess from the chips isn't bad for a saw. My band saw makes a bigger mess. If you put a vacuum inlet under the sawing area it could gather most of the chips. I might mount the VFD ( variable frequency drive ) farther from the chip area and screw the heat sinks to the aluminum frame.
It is a nice machine.
Carl.
Regarding using all of the blade length, if you make the vice long enough it is a simple matter to insert a V block to use a new part of the blade. A small tray catches most of the swarf.
Well, I guess if you never use your machines then you have no CHIPS. However, if you have machine shop equipment and you make things on them then you have CHIPS, and they fly wherever they want. Get over it.Quote:
Originally Posted by Gadgeteer
Amazing tool. The video was very well done.Quote:
Originally Posted by Jon