DIY LED Fosshape Horns

Solar botics
November 17, 2016


A handy tutorial explaining how to put together the RGB LED Horns. Make your own, or get a kit with everything included (except for the paint).

Fosshape 300
2 x slow scroll RGB LED
2 x coin cell batteries
conductive thread
2 x coin cell battery holder - sewable
2 x pieces of velcro (hook side)

dimensional fabric paint (like this) - not included in the kit

heat gun
needlenose pliers
clear nail polish - optional

Step 1. Patternimg_0890Cut out your own pattern - a simple triangle and a circle for the base.

Step 2. Shape the hornimg_0898Sew the triangle along the long edge. Shrink and form it over the heat gun - make sure to watch the fabric, when heated too much it will melt and form holes. Instead of trying to form the hot Fosshape with your hands, the best way to harden the shape is to hold it above the heat gun making sure to heat it evenly and let it shrink. Shrink the bases too while keeping them flat, but don't sew them on yet.

Step 3. LEDs preparationimg_0908With needlenose pliers curl up the LED legs and bend them 90 degrees so that the loops sit flat when the LED is facing up.

Step 4. Battery holder

img_0907img_0911Grab the battery holder, a coin cell and the base and attach the LED using conductive thread. Make sure the polarity of LED and battery are correct. If everything is wired right the LED will light up.

Step 5. Sew the baseimg_0965Sew the base to the horn like shown and add a little tab of Fosshape and Velcro to the opposite side in order to keep it in place. Paint some clear nail polish on the bottom of the horns to isolate the conductive thread from touching the metal of the hair clip. Alternatively, you can fluff up the small scraps of Fosshape and fuse them over the stitches to protect the conductive thread.

Step 6. Paintimg_0966Embellish the horns with a pattern of your choice using the Tulip paint. It will take about 4 hours to dry. The Fosshape disperses the light quite nicely.

Step 7. Hair clipimg_1033Hot glue the hair clips to the bottom of each horn. Alternatively, you can sew the finished horns to hair clips or a head band.img_0968web


December 10, 2002
New BEP Application 2

We've got a new BEP application ready for you users of the Bicore Experimenters' PCB: The two motor Servocore Walker! Use two unmodified servos to set endstop and duration characteristics, slave them like regular bicores, add an IMx reverser, and you're trotting along!

January 11, 2016
Monday New Product: Solder and Grove

Lead-free Solder Spool (100g) $9.55 Solder, without lead! Adapter, 9VDC @ 1A $6.79 This Adapter, 9V @ 1A is a economical power transformer. Grove - Universal 4 Pin 20cm Unbuckled Cable (5 PCs Pack) $3.78 Extra cables for Grove modules. Seeed Grove - 3-Axis Digital Accelerometer $35.75 The H3LIS331DL is a low power high performance […]

November 2, 2003
GM10's not here yet!

We fully expected that the boat would beat your copy of "Nuts and Volts". Apparently it hasn't! Our GM10's are due this Thursday (the 6th of November), so stay tuned for the official release then. No, we don't have pricing yet - it depends on what our total shipping cost comes out to be. Stay […]

November 3, 2005
New Catalog!

8th Edition is online! Get it here, or under the "Resources" tab - it's on the top bar.

1 2 3 252
Solarbotics Ltd Logo
Solarbotics has been operating for more than 25 years, bringing electronics know-how and supplies to both the electronics professional and hobbyist. We'll be happy to help you too!

Solarbotics, Ltd. is not responsible for misprints or errors on product prices or information. For more information, please see our Terms and Conditions.

Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Please visit for more information. This item was manufactured prior to August 31, 2018.

Copyright © 2024 Solarbotics Ltd. All Rights Reserved