Thank you for your kind comments
I really do not need great skills, but little sense of observation, have the basic tools and a manual skill medium ... but mainly want to have fun doing something useful.
Bretto, I made the cuts with a jigsaw, but we must first make all the holes to start or termination of the cuts, and likewise ensure a good finish. However there will always be that file where it left a little imperfection.
These are all the holes you need before you start cutting.
You can make some holes, according to what suits us.
Whydahdvr, Although I work in a metallurgical factory, my business is not doing these pieces, I'm an industrial designer, and I am located in Venezuela.
This is done in my house for fun, however, I like to spread it to encourage them to do their own work. Thus, we can share our experiences and learn all what can be done.