I demonstrate how to cut and finish useless, old RAM sticks, but any type of PCB will work. The beauty of the RAM stick is that about a half is good for the business information and they come with a hole cleanly drilled already. This things are great for a key chain and clients are receptive to novelty of the card.
Step 1: Materials & Tools
To continue on safety, there are two dangers you should prepare for as you cut the RAM, or whatever PCB you decide on using. First of all, make sure to use a mask and work in a well ventilated area. The dust from the PCB is not good for your lungs and it does not smell very good. Be especially aware of the PCB dust when you are grinding the rough edges.
The second danger in this project is from your tools. If you are experienced with a hack saw and a rotary tool, you should be just fine, but regardless, these things can harm you, so be careful. When cutting and grinding the PCB's, always wear respiratory and eye protection.
- Old computer chips (I recommend RAM, for size and dimensions)
- Labels or sticker printer paper
- Hack saw
- Rotary tool
- Needle nose pliers
- Face mask
- Safety goggles (not pictured)
- Table vice (not pictured)
- Music (doesn't matte how it gets to your ears; it makes every project more fun)