Lamp Line: S1 Drafting Lamp (Form - Prototype)
Second Design Year Project.
The design brief was to disassemble an existing lamp, study the components and improve the design. By remaking the lamp or attaching a new feature.
I decided to remake the lamp, abstracting some of the old form and style.
I disassembled a desk lamp, which I used for drafting. It had problems, it could not get light directly on top of the paper due to the shade going 360° around the bulb.
I decided to re-design a general purpose lamp to a drafting lamp.
Designing around my own needs for a drafting lamp, I decided to cut the underside of the shade to allow the light to shine directly on the work area.
Disassembly: Bulb Edison, Plastic Light Socket, Lamp Shade (bell), Spine, Plastic Convoluted Tubing, Formed Sheet Metal Base Cover, Base, Wires
Stock
Retrieved from Tata Steel in Lower Hutt.
Cost: $50
Diameter: 156mm
Weight: 14 kgs
Setup
John, the workshop technician, faced the stock down so that we knew the stock size of the stock to generate the G-code.
There was a problem in facing the stock due to the higher carbon content in the steel.
It would have taken too much time to CNC lathe the whole form.
So we had to step cut a rough form of the lamp first.
John is just setting up the cutting tool for me.
Rough form of the lamp, ready for the CNC lathe.
CNC lathed and ready for polishing.
Polishing it before drilling / boring seems to be a bit risky however polishing on the lathe saves a lot of time. When drilling / boring I protect the finish by making a shim around where the chuck holds the work piece.
Drilling
Like the outer profile of the form, I also needed to remove most of the material before using the CNC lathe to bore the inside profile.
After boring the inside, I vacuum formed over the lamp with a 0.8mm acrylic sheet to mark the cut line.
This also protected the finished surface.
Tapping
Rough assembly
Drafting lamp in context.
