Aggiornato il: 30 giu 2019
Aim: understand how to fix the "lotus" copper sheet onto the rod
Originally I had considered structuring this piece with tensioned wires
After various attempts with wires I took the decision to not use this language because I felt that it was lacking in solidity, which I had decided should be a consistent theme throughout my three prototypes.
Below is the sketch that I would follow:
copper sheet 2mm thickness, length 500mm, width 200mm
black mild steel bar 15mm x 30mm
black mild steel rod
laser cut mild steel pincers 3mm
Drilling a 30° angled hole into the BMS rod. The hole has 8 mm diameter to allow the vertical rod to pass through.
Preparing the detail to join the 8mm bar to the lotus copper sheet
Drilling 2 holes in the middle to fit the detail
Detail that will fit below the copper sheet.
Bending the copper sheet:
Clamping the copper sheet to form a teardrop shape:
Fitting the shape into the detail:
During the process I had 1 main issues that came up:
- the rod spinning towards the cantilever part as the holding part is not centred with the piece to allow the light to bounce on a certain amount of inside area;
One of the weakest points is where the copper sheet meets the little block of structure
I need to think a method to fix it very well .
(25 of June 2019)
Photo of concept of how to solve the rod spinning issue:
Creating a slot in the pipe to allow the metal bar to pass through:
Welding the bar to the rod that will sit vertically inside the pipe
This "L" concept allows the 2 forces to be stopped.
Cutting a slot onto the end of the rod:
Final result which solved the spinning issue
Testing a solution of fixing 2 threaded bars through the block and connecting them to the copper metal sheet to increase stability
It's a solution to fix the issue however I am not happy with the visual impact of the nuts .
At this stage, as the timeframe is very strict I will stick with this and in the near future I will refine the fixings.
I have annealed part of the copper surface as I wanted to add a detail that suggests the metal's malleability and the opening of a leaf in nature.
I am happy with the overall shape, proportions and materials
My points where I want to improve in the near future are:
- fixing detail of the holding copper sheet, I think I can find a solution where it will be more refined
- the cylinder deformed by 1 mm when I cut the vertical slot resulting in the laser cut circular cap above not fitting perfectly
considering whether I should patinate all the steel components or leave them as they are.