I came across these while reading through Wikipedia's Polyforms category - wiki article.
Wiki says there are 14 tridrafters, but while trying to find them myself, I found only 10. Later I realized this 14 number comes from the fact that for no good reason you're allowed to attach edges of different lengths together. o_o
Well anyway, I found all the polydrafters up to order 4 that I could which don't allow this stupid behaviour, and here they are. Does anyone feel like checking these? I did them all manually, so I may have missed or duplicated a few. Note that I'm counting reflections as identical.
Also, the angles are not quite exact, since I wanted to make the triangles 3x5 just to make editing a little easier on myself. It's only to illustrate the forms.