- "Capricorn PTFE Hotend Fix" requires purchasing "BETA: Ender IDEX CR-10 24V Kit & Files", "Ender 3 Max IDEX Kit & Files", "Ender 3 V2 IDEX Kit & Files", "Ender Extender 300 IDEX Kit & Files", "Ender Extender 400 IDEX Kit & Files" or "Ender IDEX - Full Ender IDEX Kit & Files". If you have previously purchased a required product, please log in to verify ownership and try again. Alternatively, get access to "Capricorn PTFE Hotend Fix" now by adding a required product to your cart.