![]() ![]() ![]() That worked for me because in that step this was the only thing that could make my life easier.Afghanistan, Africa, American Samoa, Anguilla, Antigua and Barbuda, Armenia, Aruba, Azerbaijan Republic, Bahamas, Bangladesh, Barbados, Belize, Bermuda, Bhutan, Bolivia, Bosnia and Herzegovina, British Virgin Islands, Brunei Darussalam, Cayman Islands, Channel Islands, Chile, China, Cook Islands, Ecuador, Falkland Islands (Islas Malvinas), Fiji, French Guiana, French Polynesia, Gibraltar, Greenland, Grenada, Guadeloupe, Guam, Guatemala, Guernsey, Guyana, Haiti, Honduras, Hong Kong, Iceland, Iraq, Isle of Wight, Jamaica, Jersey, Kazakhstan, Kiribati, Kyrgyzstan, Laos, Macau, Macedonia, Marshall Islands, Martinique, Micronesia, Mongolia, Montserrat, Nauru, Nepal, Netherlands Antilles, New Caledonia, Nicaragua, Niue, Pakistan, Palau, Panama, Papua New Guinea, Puerto Rico, Russian Federation, Saint Kitts-Nevis, Saint Lucia, Saint Pierre and Miquelon, Saint Vincent and the Grenadines, Scilly Isles, Scottish Islands, Solomon Islands, Suriname, Svalbard and Jan Mayen, Taiwan, Tajikistan, Tonga, Trinidad and Tobago, Turkmenistan, Turks and Caicos Islands, Tuvalu, Ukraine, Uzbekistan, Vanuatu, Vatican City State, Venezuela, Virgin Islands (U.S. ![]() I wrapped around the supporting rings with the flexible cardboard and I marked the length I wanted with a pencil. I just knew I want the width to be 10cm so I cut it that way and let the length longer. I didn't do any calculations to find out the dimensions of the piece of cardboard I needed for the large-moving tube. Now, if you had time, things would be easier, but they weren't for me. I glues 4 rings to support the large, moving tube, 1 ring to adjust it on the back part of the large tube and 1 to adjust it on the eyepiece and the front part of the large tube. The inner radius of the ring is the outer radius of the cardboard tube ( R) and the outer radius of the ring is the the outer radius of the tube plus 0.5cm ( R'). So, I cut 6 cardboard rings out of the cereals box. After I glued all the things in place I thought that I could do the same, easier using pieced of polystyrene. It is a little bit ugly and complex, but it worked. As I told you in the beginning of this Instructable I had to hurry and think quick, so I ended up with this. RELAX DIY Kaleidoscope Kit for Kids Wooden Kaleidoscope Toy Handmade Kaleidoscope Glasses Assembly Kit 3D Filled Kaleidoscope Sensory Toys Kids Gift for Nature Lovers. I want to make a moving-rolling part on my kaleidoscope, that will be larger than the main tube and will need support, so it won't bend. Merkmar DIY Kaleidoscope Kit for Kids with Optical Glass Triangular Prism, Educational Science Craft Kit for Boys and Girls Class Activities Favors. (in my case I calculated 3.7cm and I subtract 0.2cm, about the thickness of the mirror, so I ended up with a decision of 15.3cm x 3.5cm mirror pieces). Just because your mirror has a thickness and you want your 3-mirror system to fit in the tube, you might cut your pieces slightly shorter than what you calculated. NOT YET!!! There is a little thing you have to decide about this. Measure the distance between two of them and Voila!! you have found the width of your mirror pieces. (See pictures) Once you finished the circle process you will notice three points that are forming an equilateral triangle. Draw two more circles the centers of which will now be the points that the first and the second circles intersect. Pick up the compasses and draw another circle, the center of which will be in the perimeter of the first circle. Take the pair of compasses and measure the opening to be equal to the inner (r) radius, then draw a circle. To calculate the dimensions of the mirror pieces you will need the inner (r) radius, a pair of compasses, a piece of paper and a ruler. In the future steps you'll need both inner r (from the center to the inner edge of the tube) and outer R (from the center to the outer edge of the tube) radius. If you measure the diameter of the tube and then divide it by 2 you will find the radius. mirror pieces dimensions (mine 15.3cm x 3.5cm).your Kaleidoscope length (mine 18cm, Tube + End Cap = 17cm +1cm).mirror length/width/thickness (mine 25cm x 15.3cm x 0.25cm).cardboard tube diameter so you can find the circle radius (mine inner r = 2.15cm, outer R = 2.3cm). ![]()
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