Ender 5 Plus BTT smart sensor mount

thingiverse

This is designed to replace the lid on the BTT Smart Filament sensor. It uses the original screws for the sensor cover and the 2 screws and T-nuts that held the original extruder plate to the extrusion. Enclosed is a picture showing it mounted to the rear bar. The picture is the first version and used different screws. Decided to keep that one and make the final version work with the original screws that held the Creality extruder plate onto the bar so no additional parts would be needed. I used the original white PTFE tubing to feed from the sensor to the extruder. The narrower Blue tubing made feeding TPU hard to do. I suspect the TPU is slightly thicker as well as very flexible. I may measure it one day to see. You can use the original cable inside the controller box to connect the BTT Smart sensor cable. It does plug together and works fine. But you will need to redo the wiring to the inside plug. I have enclosed a picture showing the flip in the wiring. You would need to undo the flip. I elected to make a new cable so I could save the original if I ever needed to go back to stock. After it was connected the Marlin code examples in the BTT manual in the github (https://github.com/bigtreetech/smart-filament-detection-module) were used to set it up.After you upload the updated Marlin type M412 and make sure the length that comes up is correct. Mine was zero so I typed M502 then M500 to get it to use the correct value. If you do not do that it instantly stops the print. I am a using a RRD Smart Graphics display with a SKR 1.4 Turbo. It could be modified to work with the original board and a similar display to mine or other boards. I have one on a Duet WiFi board and it works well with their PanelDue. Not sure what would be needed to get it to work with the stock Ender 5 + display The advantage of this is a slightly cleaner setup as the plate and red adapter Micro Swiss provides to attach the PTFE tubing are eliminated. This sensor detects if the filament stops as well as runs out. So a break in the filament after the sensor will stop the movement of the encoder and it will alarm. And a clog would also stop the encoder and alarm as well. I tested and it worked well so I’m pleased with this addition. I printed the mounting adapter in PETG, 25% infill no supports need as long as you use 50% fan. If you decide to install one of these remember this is not how to install one. It just describes what worked for me. It may or may not for you.