Thingiverse
Pine Cone Design LED Lamp
di DrLex
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This is a decorative lamp, or a decorative piece as such. It started out as a simple low-polygon cone in Blender, but I ended up with this shape after experimenting with the subdivision surface modifier and a lot of manual pushing and pulling of vertices.
The shape screws onto a support that I provide in several variations: a plain one, which should accept a standard tea light (obviously, an electrical one), and two versions that can be fitted with a microUSB socket to power anything else that works on 5 V. One of these has extra tabs that are dimensioned for the LED driver board that I used.
In my build, the microUSB socket powers 4 straw-hat (omnidirectional) LEDs through an old LED driver that I used in an experimental bicycle light long ago. It is a voltage-boosting current source based on the TPS61040 from TI. The circuit board is an unsightly mess but it still works, and I finally found a second use for it. The nice thing about a current source like this, is that any number
The shape screws onto a support that I provide in several variations: a plain one, which should accept a standard tea light (obviously, an electrical one), and two versions that can be fitted with a microUSB socket to power anything else that works on 5 V. One of these has extra tabs that are dimensioned for the LED driver board that I used.
In my build, the microUSB socket powers 4 straw-hat (omnidirectional) LEDs through an old LED driver that I used in an experimental bicycle light long ago. It is a voltage-boosting current source based on the TPS61040 from TI. The circuit board is an unsightly mess but it still works, and I finally found a second use for it. The nice thing about a current source like this, is that any number
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