Eachine Racer 250 Arm

thingiverse

This is a "heavy duty" replacement arm for the Eachine Racer 250. For molded ABS the factory design works well but is very weak when printed. I designed this beefed up arm to be easily printed while remaining strong and lightweight. Cura shows this arm weighing only 2 grams more than the printable factory replacement. This weight is saved by doing away with the threaded inserts and carbon fiber spacers required on the original arms. Uses either factory screws or #6 x 3/8" directly into the plastic without spacers. Print Settings Printer: Wanhao Duplicator i3 Rafts: Doesn't Matter Supports: Yes Resolution: .2mm Infill: 20% Notes: Best if printed in ABS, but PLA and PETG work well also. Post-Printing May require slight sanding for the back arms to clear the battery plate, depending on how calibrated your printer is.