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368 Players Ridge Rd Hickory NC 28601 (828)244-3914 [email protected]
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Device for Producing Micro-Gratings on Optical Structures (Senior Design) __ ____________________________ Project: To Designed, Developed, and Produced a working Device for the Ruling on a Freeform Optical Surface.
o Inner flexure flanges are 0.2mm in thickness. Learned new techniques for machining small parts. ♦ Engineering Challenges: Vibrations during machining, machine runout, low stiffness in small flexures
Assembly
Display
Outer Flexure
368 Players Ridge Rd Hickory NC 28601 (828)244-3914 [email protected]
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Inner Flexure
Completed Flexure
Capacitance Probe Holder (5mm)
Housing
368 Players Ridge Rd Hickory NC 28601 (828)244-3914 [email protected]
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Device for Ruling on Freeform Optical Surfaces Project: To Designed, Developed, and Produced a working Device for the Ruling on a Freeform Optical Surface.
o All components excluding air bearing components were machined on Bridgeport machine tool. o Creation of part drawings including all tolerance of components
RESULTS Examined with Scanning Electron Microscope
Utilized Kistler Dynamometer to produce Figure 1 of force desired relative to moment arm application Figure1 Developed as step input of precise weight application resulting in piecewise function determined empirically. 40 Hz was used as cutoff to eliminate frequencies from surrounding walls. Sensitivity of Kistler dynamometer was 1 N/V for testing. Resulting Conclusion: Prove of concept allowing for continuation to Senior Design Project. Displayed ability to make rulings at low force needed for rulings on free form optical surfaces.
368 Players Ridge Rd Hickory NC 28601 (828)244-3914 [email protected]
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Base Action Arm
Bracket
Position Arm Capacitance Probe Holder 8mm
368 Players Ridge Rd Hickory NC 28601 (828)244-3914 [email protected]
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Mobile Robotic Crane
Mobile Robotic Crane (Junior Design) o Utilized PTC Creo to fully design and develop a working model of a mobile robotic crane o Presented design schematics with all calculation necessary for building o Constructed full reports of project plan, memos, design package, bill of material, and calculations o Machined working robotic using lathe, sander, grinder, drill press, and milling equipment o Effectively communicated and participated in team while working 3 jobs
368 Players Ridge Rd Hickory NC 28601 (828)244-3914 [email protected]
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368 Players Ridge Rd Hickory NC 28601 (828)244-3914 [email protected]
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Air Powered Engine ___________________________________________________________________________________
Air Powered Engine (Sophomore Design) o Machined air powered engine for competition by reading PTC Creo schematics
Attached Below are the schematics used to create the air engine. o First place for best accuracy and precision of engine with milling and tooling equipment o First place in competition for fastest engine at 7500 rpm for top end and low end of 2.5 rpm o Goal speed at top end: 5000 rpm o Goal Speed at low end: 5 rpm
Mouse Trap Race Car __________________________________________________________________________________ Mouse Trap Race Car (Introduction to Engineering)
o Designed and built Mousetrap powered race car with design constraints o Target distance was 20 ft. Team achieved 19 ft. 10 inches o Developed fully reports of BOM o Produced reports of construction design o Achieved all objects receiving first place