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My first attempt was a disaster, the outcome is nothing close to the template but an awkward shape. I underestimated the difficulty of sheet metal fabrication, and I thought I could fabricate the skin in one piece in a day. This is a disgrace to my handheld vacuum.
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I started by cutting out an ellipse shape with 363mm diameter, a slightly longer length than the template as it would bend to form the shape later. After cutting out the metal sheet, I drew a centre line and then started to stretch the metal along the line by hammering on it. It was not long until I encounter my first problem...As the centre line started to stretch, the two sides of the sheet started to bend outward. As a result, it took me forever to make the curved shape, in fact it never happened...
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Another problem is that I was not familiar with the shrinking technique. I wanted to shrink the head of the skin to form the slim head shape of the vacuum, but with limited experience and knowledge, I was stretching the head instead of shrinking it, causing the shape to deform even more, resulting with this awkward shape.
Practice makes perfect, although my first attempt ended up a disaster, I am glad that I have identified the problem behind and I start to have some ideas about metal shaping. Now I know what to do for my second attempt, and hopefully it would be better.
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