Tube Post Capsule for Seidenstrasse

thingiverse

Find a bottle or similar for the tube part, modify the files if you don't have one that is 62 mm for the outer diameter. I used a clear water bottle purchased at 30c3 without any patterns in the middle section, but the ones they are selling at 32c3 are slightly different. Print the parts, you need one of each. Print the two lids in a contrast color to indicate a removable part. When the bottom part is printed, start gluing in the LEDs, then solder them together in series. Solder the Joule Thief using thin copper wire and a lot of windings (50+), otherwise the voltage won't be high enough for the 3 LED's in series to light up properly. Solder two small pieces of wire to the LED output on the Joule Thief and in the other end to the open ends of the LED's in series, remembering to keep the polarity right. Fix the Joule Thief with double sided sticky pads. If they have foam, the battery lid will tighten and make sure the battery sits nice and firm. Insert the brass inserts. You should be able to simply press them in, if not, heat the insert with a soldering iron and gently press it in, but be careful not to melt too much of the plastic or mount them at an angle, because then the screws won't go in easily. The M3x16mm screws are used to mount the battery lid. Cut the plastic tube out of the bottle, removing the top and bottom, leaving only the straight part and insert it into the top part. You can now mark up where the holes need to be and cut them with a hole punch. It should now be possible to put the M3 nuts on the inside, mount the tube and screw in the M3x12mm screws to fix it all together. Before mounting the bottom part, remember to check the LED's and fix errors if they don't light up. Printer Settings Printer Brand: Ultimaker Printer: Ultimaker Original Rafts: Doesn't Matter Supports: No Resolution: 0.2 mm Infill: ~30-50% Post-Printing Materials Needed In addition to the 3D printed parts, you will also need: A plastic tube (e.g., from a PET plastic bottle, the standard .stl files are for a 62 mm outer diameter) 6x M3x10mm countersunk screws 6x M3 nuts 2x M3x16 countersunk screws 2x M3 brass inserts 3x white LED and some superglue to mount them 1x Joule Thief with battery holder (but with thinner wire and a lot more windings on the coil)