Smoother DNA Pencil Helix

thingiverse

Update: I added a little parts bowl that I designed for the top. I use mine to hold a little pencil sharpener and erasor. Update: Added an optional extender "BeadyDNA_extender3_zoriented.STL" - for the advanced and adventurous printing fans. Use a brim to ensure better print bed adhesion. Thanks to user SchnickFitzel for extension suggestion and first print. I recommend printing the base and top at first and then consider one or more extenders if you like a challenge. Background: I've had a few requests for a smoother DNA pencil helix and decided to do a more organic looking design using solidworks. Print Instructions: 1. Add both files to slicer and orient if necessary. Default orientation should work fine in most cases. Of course you can print these separately if you choose to. 2. The part with the outer ring is the base (bottom) and the part with the inner ring is the top. 3. Print with 20% infill and whatever layer thickness works best for you. I used 0.2mm for the pictured item. Post Printing: 1. Remove parts from printer 2. Glue together with super glue or crazy glue. 3. Add pencils and display.