As a scale modeler and fan of the Stargate series, I really wanted a good scale model of the Stargate, but I couldn't find one. However, with the help of a good friend, we set out to make a scale model of the Stargate.
Step 1: Research
Like any good project, you have to do your homework. I scourered the web in search of every bit of reference material I could find. Also I took screen captures of the Stargate from the dvd. We used this to determine scale of the stargate and the base as well as colors and details.
One early decision I had to make was what version to make. The stargate from the movie has 2 distinct differences from the tv show version. I wanted my model to be of the movie version, but compatible enough to be a tv version so we had to make a few decisions on accuracy between the two. The movie version has an open top chevron and the the tv version is closed like all the rest. The movie version has engraved constellations, the tv version is raised. We went with exchangeable chevrons and engraved constellations.
Secondly, we chose one of the most common scales for model kits, 1/35th.