This post will outline how to secure TL-Smoothers within the Creality Ender Pro circuit housing without blocking vents.
You will need insulation tape and double-sided sellotape to following the instructions.
What are TL-Smoothers?
A TL-Smoother, as displayed below, is an add-on circuit module for 3D printer stepper motor drivers. They seek to lower vibration, lower noise and provide a smoother result by way of cleaning up electrical signals. Their use is intended to compensate for less than premium motor control circuits that are used in more budget 3D printers.
(Note: there is an ongoing debate as to whether TL-Smoothers have any benefit on print quality for the Ender 3 Pro. This post will not cover this topic or the installation process as a whole. This post simply puts forth advice regarding good placement and how to secure the circuits.)
The four pin sockets of the TL-Smoothers protrude on the back side of the circuit.
Clip the ends off of these protrusion using the electrical wire cable cutters, provided with the printer, leaving the back of each circuit flat.
Cover the four pins on either end of each circuit with insulation tape, this will prevent shorts.
Cut a small square of double-sided tape and secure it to the back of each circuit as shown below.
Secure the circuits as demonstrated below using the double-sided tape. These locations will ensure everything will fit inside the housing while leaving enough space for the fan. The green square in the picture marks where the fan will be situated when the housing is closed back up.
Happy Printing. ☮