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Normally filament is wound onto plastic spools. We recognised that winding 3D Printer filament onto a plastic spool is completely unnecessary. All our Ooznest Material filaments are wound onto a 100% recyclable cardboard spool. Our cardboard spools are extremely rigid, they will not twist, deform, or tear from repeated use.
My short summary of filaments in the UK is based on my own experience guided by the kind contributions from contributors above. This may be an unfair comparison as I am new to 3d printing and I was comparing different colours which does affect PLA properties so take this at face value. All the filaments I tried were good, but some were better. The G in the acronym PETG stands for Glycol which is added during the manufacturing process. Glycol modifies the properties of PET, so that it’s easier to print, less brittle and clearer when printing with semi-transparent variants. PETG has a low thermal expansion, so even when printing big objects, and without an enclosure, it rarely lifts from the bed and warps. In addition to that, PETG is ductile . It has a healthy amount of flex which can prevent parts from breaking under pressure. I have a friend in England with a Mendel Duet printer that says he uses nothing but Rigid Ink PLA and he is quite fussy. We tested it using its default settings and found it extremely capable. Its print quality is truly exceptional and it’s an easy-to-use, straightforward machine. – All3DP MK3S Review
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Next, I bought recycled filament; Filamentive (red). I really wanted this to be successful and admire their initiative. PLA is degradable but not as eco-friendly as I would like. It is commonly made from genetically modified crops and still takes an awfully long time to degrade unless in optimal conditions. It generally finds itself onto landfills which are suboptimal conditions and take decades to break down. This filament was good but sadly I did have some significant fails and had to run the extruder up 5 degrees higher than they recommend reducing fails, but this did affect the finish. Not a bad filament and perhaps I had a bad batch, I did try drying it out as I suspected water content which improved it a bit. I was so keen for this to be my chosen filament. I was given an unmarked 1kg roll of silver PLA with my printer, presumably Prusa PLA which is now superseded by Prulament, a filament not yet available in UK, unless shipped from abroad at significant cost. This roll was not bad, did some nice builds with it but with occasional unexpected fails. When successful; the finish was brilliant, my Masterspool print looks immaculate. I got a lovely first layer 75x75 square right off the bat, with only minimal adjustment to the Z-height, so ran a Benchy. This is where I hit problems with stringing. To cut a long afternoon’s story short, I played with different temperatures from 190 - 215, although the 190 print didn’t look at all right, so I abandoned it at the point the gyroid infilled pattern stats printing.
PLA melts at a relatively low temperature of about 175 degrees Celsius. Unlike so-called thermoset materials, PLA can be heated past its melting point multiple times with very little degradation. It’s a hard material, but that also means it’s somewhat brittle, and once it breaks, it likes to shatter. Only this material is proven for 50 microns layer height. Pour a small amount of window cleaner on an unscented paper towel and wipe the print surface. The bed should be cleaned when it’s cold for the best results. If it is cleaned when already preheated for PETG, keep in mind that the cleaner will evaporate before it can clean anything. Alternatively, you can clean the bed with warm water and a few drops of dish soap on a paper towel. SandingNot sure if our filament is right for you? Don't worry you can just buy an Ooznest Materials sample and give it a try, we guarantee you won't be disappointed with Ooznest Materials. Interestingly, I did need to run my printer bed and extruder temperatures about 5 degrees higher than recommended on all my filaments and I question whether this may be a printer specific. Certainly the default settings on Slic3r PE are quite high.
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