<div dir="ltr">I haven't got any real analysis so to speak, but I can say that from my experience with multiple filaments over the years.<div><br></div><div>Common "factors" for lower quality filament (both ABS and PLA):</div><div>- Variation in diameter</div><div>- Variation in roundness</div><div>- Poor consistency (some sections have different melting points)</div><div><br></div><div>Some stuff specific to PLA (again referencing "bad" filament):</div><div>- Brittle</div><div>- Runny (ie: at melting temp, it's too liquid, and results in poorer quality prints)</div><div><br></div><div>Some stuff specific to ABS:</div><div>- Thermal Stability (some ABS warps WAY more than others)</div><div>- Low adhesion</div><div><br></div><div>Never found "perfect" filament, but so far the best I've used is:</div><div>ABS - PP3DP (the UP). Their 1.75mm ABS is like magic. It results in some of the nicest final finish prints I've seen. </div><div>That said I haven't used it in a long time, perhaps the others have caught up. But with theirs I almost never had problems</div><div><br></div><div>PLA - Ultimaker. So far compared to the 3-4 "generic" suppliers from the reprap community and so on. The Ultimaker brand PLA filament is excellent. It is consistent, and prints nice and even, good quality prints, and with the printer dialed in, it doesn't blob, or flow weird. But it does have on downfall. It has a short lifespan. Once opening a sealed spool, I estimate about 3 months, before the filament starts to degrade. I suspect this is due to ambient humidity and so on affecting it. But if left sealed it will keep for years. The final prints don't degrade, just the properties as above change slightly (for example diameter shifts slightly, melting point adjusts, and consistency gets worse when left out a long time)</div><div><br></div><div>In conclusion. I can definitely agree with you. There is differences in filament. And while any old filament will print. It boils down to how much work it is over the long haul. ie:</div><div>- Crappy filament will mean a small handful of prints between clearing clogs, or having to fiddle with dialing things in and perhaps slightly lower quality prints</div><div>- Good filament can mean an entire spool of prints without dealing with clogs, maintenance, or recalibration, and consistently good quality prints (as I've experienced with my ultimaker).</div><div><br></div><div>Any printer/filament will occasionally clog, and any printer will occasionally need some maintenance/adjustment. But picking good quality filament can certainly help reduce it (but the mechanics of the extruder/drive and so on are also a big factor there as well).</div><div><br></div><div>Hope that helps some.</div><div><br></div><div>- Paul</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Feb 3, 2015 at 11:23 AM, Stephen Burke <span dir="ltr"><<a href="mailto:steve@envirolaser.com" target="_blank">steve@envirolaser.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div dir="ltr">
<div style="FONT-SIZE:12pt;FONT-FAMILY:'Calibri';COLOR:#000000">
<div>I’ve been having a bit of a discussion with a co-worker about filament
quality, and that some manufacturers will have a better product than
others. </div>
<div> </div>
<div>He thinks that all PLA and ABS filament is pretty much the same quality, so
the best choice will be the cheapest he can find. I disagree.</div>
<div> </div>
<div>That being said, has anyone had issues with any particular
manufacturers? Are there any that are consistently good or bad?</div>
<div> </div>
<div>Does anyone know of a recent study comparing various filament
manufacturers?</div><span class="HOEnZb"><font color="#888888">
<div> </div>
<div style="FONT-SIZE:12pt;FONT-FAMILY:'Calibri';COLOR:#000000">Stephen
Burke<br></div></font></span></div></div></div>
<br>_______________________________________________<br>
Lab mailing list<br>
1. subscribe <a href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
2. then email <a href="mailto:Lab@artengine.ca">Lab@artengine.ca</a> to send your message to the list<br></blockquote></div><br></div>