Rothe Development, Inc.; 4614 Sinclair Rd.; San Antonio, TX 78222

36 -- SPECIAL INDUSTRY MACHINERY SOL RFQ 7031-6 DUE 032798 POC Point of Contact -- William D. Rothe, (210) 648-3131/Subcontracting Officer WEB: Rothe Development, Inc., http://www.rothe.com. E-MAIL: Rothe Development, Inc., rick@rothe.com. Reference: Amendment 1 to Subcontract 7031-6. Rothe Development, Inc. is a prime contractor for NASA JSC, in Houston, Texas. This acquisition was described earlier in the CBD. The items required remain the same. This modification represents Amendment #1 to this solicitation. The date for submission of bids has been changed to 27 March 1998, 1500 hours San Antonio, TX time. Description of CLIN requirements: (a) Rothe Joint Venture (RJV) will purchase for NASA-JSC one Laser Machining System consisting of an integrated laser enclosure, control system, laser, software, workbench, B&W CCTV and cross hair generator, installation, set-up and training. (b) System will be capable of 4-axis welding, holemaking, full cutting with min. spot size of .00l5 in. (c) Table shall have X/Y/Z travels of 12/6/9 in. ; 4th rotary axis with 5c collet; work table size 19X6 in. with 3 T-slots; feedrate 0.1-150 ipm.; resolution .00005 in.; repeatability .0002 in.; 0 backlash ball screws/all axes; servo drive system/optical encoders; lead screw accuracy of .003 over 12 in. (d) Software: Std. G&M code NC programming; simultaneous 3 axis linear and any 2 axis circular interpolation with center point or radius entry; 32 bit control CPU with 32K on board program memory; can use EMS memory on host; programmed pause, dwell, chain and repeat functions; inch/metric programming; single block and/or continuous run; subprogramming; automatic home comd.; X, Y, C, Z axis position readout on screen; 3D graphic tool path verification; help function; feedrate override. (e) Computer hardware: PC with hard & floppy drives & PC cart; high res. Color monitor, keyboard; interfaced with laser on all laser functions except laser on. (f) CAD/CAM package for programming the system and incorporating geometry from other CAD programs like AutoCAD or creating geometry to perform cutting, welding, and drilling. (g) Mechanical enclosure with emergency stop feature, support for 90 degree tiltable fiber optic processing head with linear slide, and solenoid for assist gas. (h) Laser: pulsed (min. 150W) pulsed Nd:YAG; conventional beam delivery with ability to add fiber optic later; component alignment verification capability; IP 54/NEMA containment; min. spot size .0015 in.; weld, cut & drill min. 1/32 in. Titanium, nickel & chromium based steel and aluminum alloys; laser control must include selection of laser parameters, pulse energy, duration & frequency, parameter influencing, control of limit values, pulse energy indications on visual display, pulse energy continuous control, pulse ramping up/down, single pulse or select number of pulses, indication of operating conditions, external control of laser system, and fault diagnostic program; hand held operating terminal; spare parts kit; provide optional price for chiller. (I) 3 sets of operations/maintenance manuals with schematics and parts breakdowns. (j) 1 yr parts/labor warranty. 20 (0077)

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