>I am ignorant, please help!
>I am considering purchase of a vertical bandsaw...I have horizontal but
>would like a vertical for making cuts prior to forging (e.g., a 2" slit
>down center of 1" bar). Never saw the use for one when I was first
>learning, but it seems more and more like a tool I need.
>I don't understand, though, why a tool like the Jet VBS-1408 is $3600
>whereas the Jet VSF-14-1 (x is more than $1500 cheaper...seems like
>self feed would be a good thing, and I'm not sure I see or understand
>the value in variable speed, if you have 4 speeds to choose from 70,
>140, 280, 580. What advantages are there with the more expensive saw
>(both way about 580 pounds and have a 1 hp motor) -- is it just the
>convenience of variable speed, or is it more suitable to precision
First off -- I can tell you from experience that if the speed
change requires shifting belts, people are likely to say "Just a little
cut at that wrong speed won't hurt it." and burn up a blade. Being able
to just turn a crank is a big help.
Aside from that, I note that there are two styles of the
variable-speed bandsaw. One has a single range: (82 - 330 SFM), while
the other has two ranges: (82 - 330 and 985 to 3950 SFM). I would opt
for the latter version, unless everything that I was going to cut would
be steel -- and even with steel, there are advantages to being able to
go to nearly 4000 SFM. Have you ever heard of "friction sawing"? You
crank the saw up to the top speed, with a toothless or worn out blade,
and *burn* your way through the steel.
For cutting aluminum, especially fairly thick aluminum, the
higher speeds are a lot better as well.
The self-feeding of the other makes it excellent for cutting
stock to length (with proper supports and guides for the ends of the
stock.) It is a serious PITA if you want to cut out a shape in steel or
some other metal. There, you want a level stationary table, and to be
able to slide the workpiece around to follow layout lines. It looks as
though that self-feeding saw has a table only on one side of the blade,
meaning that you will have no support for part of your workpiece, making
it difficult to keep level as you slide it around.
Also -- sometimes, what you want to do is to make a cutout in
the middle of a workpiece. For that, you drill a hole in the waste
stock in the middle, cut the bandsaw blade, thread it through, and use
the welder (which is only on the variable speed saw) to join the ends.
Then you cut out the inner part, and cut the bandsaw blade again to get
it out -- all without having a saw kerf from the outside to the inside.
Of the two, if I could have only one (and I don't have either of
those), *I* would pick the variable-speed one with the welder and the
dual speed range as the more versatile. This is important to me because
I seldom do the same thing twice in a row on a bandsaw -- other than
using my cheap horizontal for cutting stock to length. I have another
(three-wheel benchtop) with three speeds for cutting out shapes.
If I were running a production line, where the same metal and the
same size would be cut day after day, the self-feed saw could be set to
the proper speed for the material *once* and then cut all day every day.
I hope that this helps,
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
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