I've used reciprocating electric gouges -- they work the way they're
supposed to but I have never really liked nor appreciated them. They're
noisy, even the heaviest have some unpleasant vibration -- but for anyone
who is unable to use hand tools, this sort of thing might be a Godsend.
I've used Dremel and other 'small' hand-held rotary tools with a number of
different kinds of bits -- fluted, abrasives, toothed -- wheels, cones,
cylinders -- you can make iterative marks pretty easily, you can get some
interesting effects by allowing the tool to bounce around, and you can SORTA
draw with them like a VERY SLOW moving pencil but I haven't found ANY
attachment for a Dremel which can remove material as quickly or accurately
as traditional hand-tools... Also rotary tools tend to 'climb' at an angle
to the intended direction so it's difficult to be very accurate. Even sharp
rotary tools leave a burr. Sanding lightly with 400 grit after carving
usually cuts off the burrs (sand paper should be supported by a block to
prevent 'rounding' the edges of printing areas).
I've used everything from hand-held laminate trimmers up to 5HP variable
speed plunge routers (WAY, WAAAAAAY faster and more powerful than anything
Dremel-like, but basically the same kind of rotary tool) with various router
bits -- hand guiding these it is VERY easy to lose control and cut WAY more
material than you intended -- hard to see exactly where you're carving and
SUPER NOISY -- but they can clear large areas VERY quickly and almost
effortlessly -- can also take a finger or a hand off in an instant!
My BEST results carving with power tools have been with routers moved under
computer control. I've been experimenting with that sort of thing for about
four and a half years now. I 'program' the path and depth the router will
cut in advance. If I use, for example, a 45 degree conical 'V' bit, I can
engrave a very fine line which is no wider than it is deep -- accurate to a
few thousandths of an inch -- using such a bit and controlling the depth, I
can carve very tiny lines, very sharp and acute angled corners and, once
I've outlined printing areas, I can clear non-printing areas quickly using a
larger diameter flat bottomed bit.
This sort of equipment will NOT help anyone who wants to carve
improvisationally, but for those who design images and block in advance, it
can allow one to work MUCH larger and more comfortably and accomplish more
work in less time than with hand-tools.
Do-it-yourself folks with a good workshop, electronics expertise, and a
local electronics surplus store can make their own for super-cheap. New
equipment of modest dimensions might cost a few thousand dollars and up.
Equipment capable of carving full sheets of plywood start around 8 or 10
thousand dollars. Price increases with size and accuracy and so on and
there is really no limit to how MUCH you might be able to spend..
There's quite a LONG learning curve for self-programming and a much shorter
but still lengthy learning curve for off-the-shelf software which may cost
as much (or more) than the machinery.
42x77 inch woodcut from 17 blocks carved by computer controlled router:
http://mlyon.com/blog/2006/08/sara-42x77-inch-woodblock-print.html
-- Mike
Mike Lyon
Kansas City, MO
http://mlyon.com/blog