Summary Update (9/7/16): I uploaded a new version with (what should be) better guide alignment. The last one was a little off on my 1403. I haven't printed it yet, so I could be wrong. Someone let me know if you print it. I made a few modifications to the original model by dasistdaniel, but it works just the same. Print Settings Printer Brand: Printrbot Printer: Simple Black Rafts: No Supports: No Resolution: .2 mm Infill: 15% Notes: Used yellow Excelvan PLA.