Review on Gizmo Dorks Filament Printers: High-Quality Transparent Additive Manufacturing Products by Michael Cleveland

Absolutely awesome stuff. I would give this 6 stars if I could. I had some pieces that bulged outward when lifted from the bed and tried everything to print them with clear ABS and TGlase. Shrinking with ABS - even with the case heated - continued to cause the perimeter of the part to pull in and up over the first 25 layers, straightening the curve at 45 and effectively forcing the layers into the printhead for the next layer became. It was a disaster. Best results with TGlase, but printing was slow and very expensive. I eventually switched to white (natural) HIPS, which eliminated about 95% of the problem, but at a loss in transparency. So I decided to try this clear PETG. Perfect results! No print shrinkage, perfect curves and excellent light transmission. Some very slight tension but much less than other PETG brands I've used in the past. Good layer adhesion. The diameter of the thread corresponds to 2.85-2.87 mm. Easy to use and great results. Note that when printed, this is "transparent" and not "transparent". Moves well in light but appears blurry or "dull" when printing with more than one tray. Printing on Lulzbot Mini with extruder at 240°C and bed at 70°C, no fan. Excellent bed adhesion when printed directly onto PEI at 70°C, but when cooled to 50°C it separates from PEI very easily (much easier than ABS).