I figured a Radicon might be able to help me out here. I'm currently building a model in CAD (Sketchup), but i've built it in many different parts, as separate files (i.e. separate models). When i want to have each model printed, though, ther's an initial startup fee per model, so if i could get all the collada files i have now, together as one file, it would help out a lot. If anyone could do this, or direct me to something that might help, please do. Thanks.