I created this extension to fix the problem with the sagging of the energy chain, I needed a sufficiently durable structure,

inspired by a previously used structure but it is a completely my own design because I was bothered by the sagging energy chain which caught and caused the belt to skip.

I am planning one more small upgrade, a holder for the energy chain itself to stabilize its hold in the groove.

if you want to use the Bigtreetech smart filament sensor V2 like me you will need to disassemble it and change the contact of the filament switch from NC to NO (if you do not want to overwrite the value in the firmware) I decided not to use the jam sensor but there are instructions on the website.

it will be necessary to dismantle the original sensor and connect its cables to the original smart sensor cables (they do not have the same connector)

additional material:

18 pcs M5x16 Allen screw

18 pcs M5 self-locking nut

18 pcs M5 washer

2 pcs M3x20 countersunk Allen screw

2 pcs large-area washer

2 pcs M3 self-locking nut

3 pcs M3x12 for the sensor

some cable ties for attaching the cables

Printed from PET-G

3 perimeters

30% infill

supports yes

limit angle of support 30°

Cover K1 MAX with Bigtreetech smart filament sensor V2.0

0.2mm layer, 3 walls, 30% infill

0.2mm layer, 2 walls, 15% infill