White is the worst offender. Shown below is a simple knob printed on my Makerbot T.O.M.. In each case, identical print parameters and speeds were used. As shown, the Natural color ABS plastic looks almost perfect, while the White ABS looks horribly overfilled. Because the input filament diameter was identical (2.92 mm) and the identical GCode file was used, the only logical conclusion that I can reach is that the White ABS must somehow be expanding more than the Natural color during printing. I'm wondering if the dye or pigment used is causing this somehow.
Out of all filaments that I've used, the Natural ABS plastic has the best printing characteristics. Red and Green are a close second, Red's not bad, White is a monstrosity. Anyone else have issue such as this?
Identical prints?
Hi, I think that your problem is caused by the materials used to pigment the original material, most polymers use aluminium based pigments, natural pigments, oil based pigments o purely synthetic pigments, each color have different properties due to that difference in pigments materials.
ReplyDeleteTry Nylon, I have been using nylon that is commonly used in garden machines for grass cutting and it works super, I have dyed with different colors with even better results. I'll open a blog soon, but you can see my fb if you want.
I've done a few prints in Nylon as well. The big problem I have with Nylon is Shrinkage that occurs during the printing process. I think I would need to have a heated enclosure to properly hold the temperature constant until the print was complete.
ReplyDeleteIf that’s the problem, you can try this high grade PLA filament. It’s less brittle than the standard PLA filaments in the market and has low warping, too. We tried it recently in our experiments and it yields good output. For smooth and glamorous finish, you can add acetone and some metallic air spray. BTW, it requires no heat bed. If you have a heat bed then set it to ±50-60˚C to keep warping to a minimum.
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