A lot of the parts I used to build this were items that I already had or had left over from other projects. I recommend that you customize this or other projects to use up some of your existing materials. For me it's a great feeling to use up left over materials instead of storing them for years or throwing them away. Also, it saves you money and you make room for the next big project.
Motor and Wheel Assemblies
I purchased my motor assemblies several years ago from a surplus site and then couldn't find them again. Recently I found more of what look like the exact same assembly at the surpluscenter.com web site for $4.00 each. Here is the link. They are listed as "3 VOLT DC 1000 RPM MOTOR PAIR". The ones I have were listed as 6 volts DC. I can not be sure these are the same as I don't have any to compare against the ones I used for this project.
UV LEDs - Technical Specifications
The tools I used on the project were as follows:
Not all of the tools in this list are required, but will make the construction much easier.
NOTE: If you plan on using any tool for a project please make sure you are familiar with the tool and all of the dangers associated with it. If you are not familiar with a tool then you should ask someone who is to show you the proper way to use it. A lot of communities have classes at local colleges on the proper use of tools and machinery. There are also local woodworking clubs that offer classes at very reasonable rates for beginners. I highly recommend using these resources for your safety and for the most efficient use of the tool.
Always wear eye and hearing protection.
Always work safe with the proper safety equipment and guards on your tools.