Even more XT30 and XT60 protection caps

thingiverse

These are some XT30 and XT60 protector caps. There are several sizes to choose from, which can result in varying fits. Adding pins helps improve grip, even with rigid materials like PLA. For a snug fit, try wiggling the plugs in and out a few times while pushing them slightly deeper each time. If they still won't budge, apply some heat and repeat the process until they slide off easily. The caps will retain their new size after being heated and reinserted. The FreeCAD source files are also included for further modification.