If you need to open the top cover on K2+, for a better visibility or for a ventilation (when you prints PETG), you need to remove CFS from the top first, or use a CFS riser.

Also when you wants to print with TPU you need to install the spool right above the head for direct input.

All versions of CFS stands i found was unstable and not fixed on K2+ top.

So i made my version, rigid and hard fixed on K2+ (by holes on the top rear, just remove the rubber caps). And with a TPU spool holder.

For a spool holder i'm using (useless) K2+ side spool holder, unbends existed filament guide (see pictures).

Distance between CFS foot holders must be 200mm, side shift up to you (on pictures 35mm).

Assembly using rubber-tipped hammer. You will hear dull sound when the profile reached the end.

Other parts to build:

1) V-slot 2020 aluminium profile 450mm - 2pcs

2) M4 8mm screw - 14pcs (i'm using DIN 7380 black color)

3) M4 t-nut - 14pcs (for V2020)

4) Rubber pads 17*21*2mm 4pcs (i'm using Space Pi rubber pads after CFS mod)

Updated for different V2020 profiles and added Creality CFS logo and the separate plate with logo (needs two M3 or M4 8mm with t-nuts).