Concept by R.Waters. Designed by Technological Design (TDJ3M) student: K.Bowlby at Bell High School Ottawa, Canada. It requires two nut and bolts to hold it together. This is the second prototype and it works well. A telescope adaptor that fits a cell phone for digiscoping. I use this set up on my Samsung Mini S4 with a Swarovski 20-60 x zoom eyepiece.
Used Vernier Caliper to measure diameter of eyepiece and phone camera lens.
Sketched the concept and dimensions on paper.
Designed on Fusion 360. Exported as an .stl to Dremel Digi-slicer.
We experimented with the focal length, the first tube was too short the next was too long, finally we got just it right.