In the quake dir create a dir structure like id1. Here is a break down of what you will need to make maps gfx and models. Now assuming you have the registered version and did not pirate this version you can go on then. Then run quake with these command parameters. This will bring you into quake and it should replace all the armor icons with your object icon.
Objects HAVE to be triangles.
You could have repeated points that wernt deleted. Scale of your object could be wrong. Meters has best output. All rights reserved.