Summary I had to make this because I miss measured the requirement for the rod length. I made the Taulman Spool Holder (https://www.thingiverse.com/thing:938437) and upscaled it to 120% of the original files, but to get the support rods long enough for the Robo 3D spools I have I had to make this extension. Maybe it will come in handy for someone else. Make sure you measure twice so you only have to print once. Print Settings Printer Brand: MakerBot Printer: MakerBot Replicator+ Rafts: Yes Supports: Yes Resolution: 200 microns Notes: Supports are needed for the female end.