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- PLOTTER.DOC
-
- Environmental Optics Inc. Mark V Photoplotter Specifications:
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- Photoplotters represent a superior technique for the preparation of
- phototooling for the fabrication of printed circuits. Compared to pen
- plotters, photoplotters draw with a beam of light and do not skip or smear.
- Since they produce one to one art-work directly, further photographic reduction
- is not required, eliminating the possibility that lens distortions will produce
- misalignments. Because this is a flat bed plotter, there is no accumulated
- skew as can occur in pen plotters which move the paper back and forth under a
- pen.
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- For several reasons, a photoplotter can keep up in performance with a much
- faster pen plotter. Since plotting is the final size there is an immediate
- gain over doing art-work 2X or 4X. Further, this photoplotter contains
- apertures where a whole object, i.e. a component pad, is flashed onto the film
- at once.
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- The Mark V is designed as a compromise between pen plotters which have the
- above problems, and traditional photoplotters which are ten to fifty times as
- expensive. While of lower precision than more expensive photoplotters, we
- believe it offers sufficient precision for multi-layer and surface mount
- boards.
-
- The Mark V is light tight so that operation is possible with minimal dark room
- facilities. All that is needed is a broom closet or similar space that can be
- made dark while film is loaded.
-
- The package includes a complete IBM compatible XT type computer which with the
- addition of a color monitor is suitable for operation of the DROEGE software.
- Included are a disk drive and adapter, 640k memory, serial and parallel ports,
- a clock calender, and a color adapter.
-
-
- Effective Plotting Area: ............. 17" x 22"
- (430mm x 560mm)
-
- Maximum Plotting Speed: .............. 1 ips (25mm/second), axially
- Non-Plotting Moves: ................. 2 ips (50mm/second), axially
-
- Distance Accuracy: ................... 0.05% of distance moved.
- (calibrated by software to 0.01%)
-
- Repeatability: ....................... +/- 0.002" (0.05mm)
-
- Step Size: ........................... 0.001" (0.025mm)
-
- Apertures: ........................... 16 Electronicly Selected
-
- Aperture Size: ...................... 0.005" to 0.150" (.127mm to 3.81mm) or
- to customer specification. Apertures
- may be used as draws or flashes.
- Aperture plate may be changed in the
- field.
-
- Size: ................................ 32" x 25" x 7" (812mm x 635mm x 178)
-
- Interface: ........................... Direct drive from plot files stored on
- floppy disk. Files may be generated
- from the DROEGE CAD program or down
- loaded from the RS-232 interface. Files
- may also be ported by floppy disk.
-
- Film Required: ....................... LPF-7 or equal speed lithographic film.
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- Bearings: ............................ Hardened and ground precision steel
- shafts with linear ball bearing
- bushings.
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- Note: Specifications are preliminary.
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