[comp.graphics] Giant plotter at MIT

jbn@glacier.STANFORD.EDU (John B. Nagle) (09/07/87)

     I have just heard that someone at MIT has constructed a 36' by 44'
plotter for making large murals.  I would like to get in touch with
them.

					John Nagle
					415-856-0767

lindsay@k.gp.cs.cmu.edu (Donald Lindsay) (09/10/87)

In article <17173@glacier.STANFORD.EDU> jbn@glacier.STANFORD.EDU (John B. Nagle) writes:
>     I have just heard that someone at MIT has constructed a 36' by 44'
>plotter for making large murals.  

The ultimate pen plotter would be a "turtle" robot, with high precision
navigation. One would put several beacons nearby - ultrasonic, radio,
laser, whatever - and as long as the robot could determine its position
to within a line width, you have a "plotter" of practically unlimited
size. It might even be cheap, since it would depend more on electronic 
precision than on mechanical precision.

A simpler and smaller one would use a (relatively) trivial imaging
system, and look down. A very large light table is just a matter of
hiring a carpenter and an electrician (or a student). Large plastic
sheets can be purchased that are printed with grid lines, and that
have low thermal creep (etc). The navigation software now merely
counts grid transitions.

Of course, a pen plotter may not be what the world is waiting for.

-- 
	Don		lindsay@k.gp.cs.cmu.edu    CMU Computer Science

berger@datacube.UUCP (09/15/87)

There is a GIANT plotter at MIT. It was built by people at the
Visual Language Workshop several years ago. The name of the professor
has suddenly escaped me.

It is GIGANTIC. I forget the specs but it was made for doing LARGE billboards.

It had something like a 5 nozzle airbrush head so it could do color.
Its input was driven by a Grinell Frame Buffer so you could "display"
almost any image onto the plotter. Much of the research was in inks/paints
that could be easily controlled and mixed by the nozzles.

Last I saw it (a few years ago) it was in a large MIT warehouse in Cambridge...

bc@mit-amt.MEDIA.MIT.EDU (bill coderre) (09/16/87)

Ron MacNeil of the VLW made the plotter in question. It worked by
having a cart drive on a rail, with a set of airbrush nozzles riding
up and down on another rail carried by the cart.

Ron was talking billboard-sized output with fairly small (inch or so)
pixel diameter.

Ron's address is ronmac@media-lab.media.mit.edu (seismo knows about
us, too).

The project is currently not being worked on.......................bc

aln@mrmarx.UUCP (Amanda Nash) (09/29/87)

I don't know about the plotter itself, but I think the woman in charge of
the _Visible_ Language Workshop's name is Muriel Cooper.  Or something
like that.  I'm sure if you called the Media Lab you could find out.