Anet A8 LED Holder

thingiverse

This handy little piece enables attaching two LEDs directly behind the hotend on the stock extruder carriage for enhanced visual monitoring of prints. It is engineered to attach securely (with two hex M3x20 screws provided with the A8) to the X-belt holders/tensioners that have two screw holes, such as these models: https://www.thingiverse.com/thing:2425783 https://www.thingiverse.com/thing:2134843 After soldering in the LEDs and testing the connections, seal the lid on top with glue to maintain proper isolation. You can connect it to the + and - 12V on the motherboard, directly to the PSU, through a switch (optional), or to the extruder fan. The choice is yours. Don't forget to add a resistor to the negative wire somewhere in your circuit; I used a 4.7 Kohm resistor.