OVERTURE PETG Filament 1.75mm for 3D Printing - 2kg (4.4lbs) High Precision +/-0.02mm Filament - Compatible with Most FDM Printers - Space Gray (2-Pack) - Perfect for DIY Projects, Prototyping & Cosplay Props

Even if we were to set aside the fact that the transparent filament is gorgeous, I'd still recommend this product based on how easy and reliable it is. If you're aiming to print something for decorative purposes where a translucent effect is required, you should definitely print slowly (30-40mm per second) to increase the evenness of layer lines and generate a gorgeous transparent effect. But because it's so reliable, I can regularly print overnight where speed isn't a concern. I'm genuinely stunned to see how often I'm able to nail the transparent effect on the first print, including challenging designs such as the incredibly thin (0.4mm) capsule shaped lamp diffuser in the photograph.But here's the kicker: This prints so reliably that has also become my go to filament for functional prints/prototype. When perfectly even layer lines and flawless transparency aren't a concern, I can crank up the speed and it will still turn out great prints on the first try when other "easier" filament types fail.Tips: Pre-heating/drying this filament isn't necessarily required if you live in a low humidity area, but it really does help when you want a near perfect transparent effect. Additionally, I've found that this particular PETG really likes heat. For a perfect first layer, I crank up the extruder temp above the recommended level (270-280° C) and use a bed temperature of 80-90° C. From there, lowering to 250° is a sweet spot for transparency and layer adhesion. I also found that it performs better when my chamber temp is set to 55 or 60, though this may not be the case for those who don't have a chamber fan.