On December 20, 2009, someone (who?) donated a beautiful HP DraftMaster I pen plotter (HP P/N 7595A).
There's a Flickr set of somebody else's DraftMaster for reference.
- appears to be in good physical condition
- comes with a pen carousel
- comes with one pen holder (holding a #2 pencil, nach)
- has a DB-25 that probably wants to speak HP-GL over RS-232
spit something out to it: dd if=/somefile of=/dev/ttyUSB0 bs=1
 Carousel setup
- Inkscape, a vector drawing program, can export HPGL.
- Uniconvertor may be able to output HPGL.
- hp2xx, a hpgl to jpg converter for sanity checking.
Program that seems to work:
IN; SC0,40,0,40; SP7; PU0,0; PD100,0,100,100,0,100,0,0; PU50,50; CI25;
 Use It
- Your program needs to use DOS line endings (\r\n)
- Serial is 9600 8N1 on the PC side, plugged into the COMPUTER/MODEM port via a null modem cable
- DATAFLOW: REMOTE, STANDALONE
- PARITY: 1
- BAUD: 9600
- HARDWIRE: OFF
- Load (or create) your vector graphic in Inkscape
- Prepare the image for printing:
- Scale the image (Inkscape mm units appear to work correctly)
- Flip the image horizontally (for some reason, the plotter is printing it backwards)
- Select 'save as', then 'HP Graphics Language'.
- Open this file in a text editor, and copy the text
- Paste the file into your terminal program, configured as above (CoolTerm in OS/X or Minicom in Linux)
- Enjoy your plot!