Fabrication

Fabrication: /week3/ Stand Holder for iPad

I need a iPad stand holder, so I decided to use acrylic sheet and make it by laser cutter. But things are not easy.

These are my sketches. At first, I designed this iPad stand holder by just using one piece of acrylic.

img_8126

This is the outline in illustrator. The left picture shows my way to estimate the approximate length of each part. Since there are two bend areas, I think it’s difficult and unnecessary to make accurate calculate.

qq%e6%88%aa%e5%9b%be20160926173415My difficulty is about the bend part. The first one was broken, because the cutting pattern of lattice hinges were not appropriate. Since the radius of bend depends on the length of the cuts, the distance between them and the thickness of the material. I made a improvement of the spring length and width. The second one turns out to be more flexible.fyj4ulbhwrz7uvt-medium

img_8142

img_8143

Then I use acrylic bender to bend other parts. Consider that the neck of the rabbit has to bend more than 90 degrees, I’m afraid of breaking again. So the acrylic bender also helped me to bend it over 90 degrees. Since it’s still flexible, it won’t lose its function of adjusting the angle.
img_8152

img_8145

img_8151

img_8148

dsc06204

Lattice hinges rely on torsion of the material to bend. From this experiment ( I would like to call it experiment, because the final product is not perfect, but I really learnt a lot from failure), I think acrylic may be not a good choice for this harsh angle. Next time I will try wood material to test the flexibility.

One thought on “Fabrication: /week3/ Stand Holder for iPad

  1. Good work. I agree with your conclusion, acrylic is not an ideal material for “living hinges”, they often snap at the bend. But these types of designs are challenging in any material.

    I like that you used the acrylic bender and the sharpie trick.

    Good documentation.

Leave a Reply

Your email address will not be published. Required fields are marked *