User:Sebzeppelin

I'm Seb. Day job involves mechanical design on jet engines, and figuring out what screwed up first when an engine decides to melt a bearing or spit blades all over the floor.

Areas of Interest / Mild Expertise

• Skateboarding
• Photography
• Loudspeakers
• Drumming & Percussion
• Solid Modelling (Solidworks, Catia), 3D sketching
• Woodworking
• Mechanical Keyboards
• Metalworking
• Bookbinding
• TIG welding
• Cars (particularly Air-cooled VWs, Type 4 Engines)

• Race Car design
• Combustion Engines
• Powertrain

• Formula Student (Previously a competitor, Currently Scrutineer & Design Judge)

Projects

Completed Projects

Name	Description	Images
Sliding Gloves	Heavy-Duty sliding gloves for downhill skateboarding. Made from leather welding gauntlets and 10mm nylon sheet. Nylon was attached by melting the reverse side with a blowtorch and pressing to the glove.
Bedside table	With integrated USB charging ports and mains sockets. Made fron oversize weathered timber for a 'Railyway sleeper' type effect.	Complete
Shoe & Skateboard Rack	4 staggered shoe shelves, rack for 6 skateboards and 2 hockey sticks.
Chopping Board	With gravy / crumb catching slot. Made from scrap timber.
AI Lens conversion for Nikkor-H 300mm Telephoto lens.	Lens had suffered a previous conversion that wasn't quite the right geometry. Fix also included min-aperture stop for compatibility with newer Digital bodies.		[ File:2014-03-22 300mm Nikkor-H AI modification 002.jpg

Active Projects

Name	Description	Images
4 foot Floorstanding Loudspeakers	Hi-Fi Loudspeakers based around a 12" bass driver and a 5" Tweeter.	In Progress
Rotary Subwoofer	A complete redesign of the Thigpen TRW-17. A variable-pitch fan will create sound by oscillating the blade angle at the desired frequency. This will permit the speaker to produce sub-audible frequencies at very high sound pressure levels compared to a conventional cone driver. Amplification will be via an existing Quad 44 monoblock valve amplifier.
Chip Amp	Power Audio Ampifier using LM3886 National Semiconductor Opamps.	In Progress
ErgoDox Keyboard	Mechanical Keyboard split into two halves for ergonomics.	In Progress
Tilt-Shift Lens	To fit a 35mm Nikon SLR camera. Will use an existing Mamiya-Sekor C 45mm f2.8 Lens. This medium format lens has increased coverage compared to a 35mm lens to allow for movements relative to the image area.
Hackspace Wire Rack	Needs more broomhandles and caps on the end of the rack, plus labeling.

Future Projects

• LED Lamp
• Glass-Top Coffee Table, Possibly with MAME arcade
• MESS, possibly RPi based
• Games Console Shelf/Cupboard Unit
• Cajón (South American percussive box)
• Rack Mount Linear Power Supply
• Back To The Future inspired Alarm Clock
• Stepper motor window blind opener (Possibly Arduino?)
• Ring-Light for Microphotography
• Hexagonal or Square LED perspex art thing
• Light Table. LED based, possibly portable
• Weather Station
• Shower Hook / Shelf
• Update Old Telephone with modern electronics
• Keyboard / Keypad using mechanical switches for launching specific applications
• Microscope Camera Adapter
• Remote Camera Shutter with Timer
• Book shelf for office
• LED Cube
• Coffee pot web server / webcam
• Nixie Tube / Decatron Tube something
• USB Inline power meter (Ammeter) along the lines of 'The Practical Meter'

• KT-88 based amplifier (design and build)
• Waterproof Headphones
• Waterproof Headphone amp* Quad Amp and head unit diagnose and repair