Merry Resistivities Tutorial
Step-by-step instructions to guide you through your Merry Resistivities Set assembly!
If you’re lucky enough to have your hands on one of our Flashing Card Sets, this tutorial will help guide you through the process of putting it together.
Our easy step-by-step instructions will show you how to draw a simple circuit using Electric Paint and attach an LED and battery to bring your cards to life.
Even if you don’t have our kit, you can follow this tutorial by drawing your own circuit and cold soldering your components on to it. So go on, get creative with electronics!
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An easy way to attach tiny components
Cold Solder, Surface Mount
To begin you will need:
Flashing Card Set Merry Resistivities
OR your own circuit design!
Electric Paint Pen
Coin Cell Batteries
Get your kit!
Use a pin to make four holes, one in each circle.
Ensure that the longer leg is pushed through the + hole and the shorter leg through the - hole.
Leave space between the card and LED for cold soldering before bending the legs apart to secure the component.
Insert the battery by pushing the the top leg (over yellow band) through the + hole and the bottom leg through the - hole.
Bend the legs apart to secure the component.
Cold solder both components to the card using Electric Paint.
Simply squeeze a droplet of paint onto each component leg. Make sure the paint makes good contact between the leg and the paper.
Squeeze a continuous bead of Electric Paint along the template lines.
Make sure the line is thin enough to dry quickly, but thick enough that the current has a consistent path to follow.
A good thickness is like that of a jumper wire.
Once your cards start flashing away they should last around 10 days!