Prusament Prusa Galaxy Black, PLA Filament 1.75mm 1kg Spool (2.2 lbs), Diameter Tolerance +/- 0.02mm

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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. Amongst the Benchys, I also ran 3 cube/vase mode prints to get the extrusion multiplier just right, did another Benchy, but still couldn’t eliminate the stringing.

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. We provide high print settings with the printer, so you don't have to dive into complex new programs the second you finish the build. You can start printing right away, and this gives you a great head start! The IFS extruder enables the integration of the new filament sensor in the housing of the extruder on the Prusa Mini / +.

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Of the 11 printers we have tested over the past five years, the Prusa i3 MK3S printer has produced the largest and best-looking prints. – THE NEW YORK TIMES REVIEW As an incremental upgrade in Prusa Research's primary 3D printer line, the Original Prusa i3 MK3S+ offers some modest improvements over the now-discontinued i3 MK3S. Among the changes are an enhanced bed-leveling system, sturdier parts, and improved extruder airflow, all of which serve to make a good printer even better. If you already have the i3 MK3s, you may want to wait until the next generation before replacing it, unless you're anxious to try the five-color add-on.

You then use the LCD's control knob to extract the remaining filament from the extruder, twist the knob to Filament In, put a spool of filament on the holder, and feed it into the extruder. Filament should soon start extruding from the nozzle; pressing Yes when you're prompted will stop the flow. You remove the strand of filament hanging from the nozzle, put the supplied SD card in its slot, select a sample file, and press Print. The thumbscrew tensioner allows the user to fine-tune the pressure exerted on the filament by the drive gears. This gives you the opportunity to adjust the settings to your preferences and optimise them for the type of material used.The team at Prusa Research have made something special with the MK3. If you only ever own one printer, make it this one. Of course, once you buy it you will want more of them, and that's ok too. – Windows Central Review

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. These settings are great for all kinds of objects, not just for a couple of prepared showpieces. After a while, when you're familiar with the printer, you can, of course, dive into tinkering ;-) In the photo below, from left to right the temperatures are 193, 195, 205, 210. The 193 version completed and had seemed to have the least amount of stringing, but split along the bottom when I removed it from the plate and showed signs of under extrusion/layer separation), I didn’t grab a photo of the 215 version, but I couldn’t see any noticeable difference between it and the 210 version.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. I printed eight objects on the i3 MK3S+ at the default 150-micron "Quality" resolution setting, most of which I had previously printed on the i3 MK3S.