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Published on Aug 25, 2012
Trimmer line is less than half the price of ABS or PLA, and it is more flexible and strong. It can be printed with an unmodified printrbot fairly easily. However, some people have commented that Nylon emits small amounts of toxic fumes when melted. These fumes cause symptoms like headaches, feeling lightheaded, and a sore throat. Please make sure you have a fan going and a window open near the machine, and you will be fine. The steps for printing with trimmer line are: 1. Get 0.105 in trimmer line. Make sure it is Nylon. I got mine on amazon here: http://www.amazon.com/dp/B001BKZT1S/r... 2. Dry the filament by putting it in an oven at 300 F for 3-4 hours. Don't dry all of it at once especially if you live in a humid climate. I dry enough to last a week. If you do not dry it, the extruded material will get all foamy and make your parts very bad looking. This is due to the evaporating steam. 3. Put the dried filament in a ziplock bag, and put some dessicant with it to keep it dry. I used some "closet dessicant" I got from Walmart, with the ziplocks that have a slide thing. 4. Feed the filament out of the bag and into your extruder. 5. As seen in the video, make a bunch of little clamps to go around the outside of your bed. I just used some pieces of wood with holes in them and some small bolts that go through the table. You could also print something that would probably work better. 6. Cut a piece of cardboard to size, so that it fits under all of the clamps. Slide the cardboard in and screw the clamps down. 7. Go to http://forums.reprap.org/read.php?1,7... for the slic3r settings. You will need to get your heated bed up to 120 C and your nozzle up to 245 C. 8. Calibrate the height you want to print at. The closer to the cardboard you are printing, the more adhesion, but the more cardboard you will need to get off of the bottom when the print is done. On the other hand, if you don't care what the parts look like, it doesn't matter. 9. Start printing :) 10. Optional: Use a dremel tool with a fine wire brush attachment to take off the cardboard stuck to the bottom. The wire brush should take off the cardboard quite easily, but not damage the Nylon.