Thank you. I imported them into inkscape and they look fine.
Now, on to another issue. I just received my HSS 4mm hand tap today and tried desperately to hob the bolt for the Wade's extruder. I first cut a groove where they center of the tap needed to be by running the bolt in an electric hand drill against a file. Afterwards, however, I made a makeshift bolt holder from 2 bearings, rubber bands, clamps, and a few nuts and washers. This held together fine, but when I went to hob the bolt with the m4 tap using my electric hand drill, it skidded about across the side of the bolt quite violently. Even after I managed to center the tap on the groove I had cut, the tap didn't seem to be cutting ordered threads in the side of the rod, but, rather, chaotic little grooves. This was, in part, caused by the bolt not moving along with the tap as it turned; it was not cutting the thread. Instead, it was closer to a drill bit in that it cutting out a portion without hobbing the bolt.
Any tips or help to give me? Is it perhaps that my hand drill has too fast of a speed? I don't believe I can vary the speed it rotates by, but it seems rather fast when compared to
this video. Maybe it's something as simple as I wasn't going long enough with the tap.
Thank you!