I have finished several parts, but the first part is the most tricky one... You need to do something (usually takes 15-30 min), then wait 12 hours for the stuff to dry, 10 min. in an oven and then the whole thing repeats itself again for another 3-4 times. Never noticed that I needed a hacksaw too... Since I hate cutting things off, I am hoping for the best.
At this moment I am at the part where the coil is wrapped around the extruder and the total time is 24 hours waiting. Hope they give me a break in school too so I can work on the reprap.
At least I found out its not something you can do in school during school hours with a bunch of screaming kids. You need a lot of patience and skilled fingers, but its an ideal project for when you have to write your thesis about it.