SFS V2.0 Pivot Mount for Ender 3 V3 SE/KE

I found the original model that provides a pivot mount for attaching the BigTreeTech Smart Filament Sensor (SFS) V2.0 to an aluminum extrusion, and wanted to adapt it to my needs of using it with the Creality Ender 3 V3 SE. Since I already use the side spool mount with my E3V3SE, reusing the mounting point for the original spool holder made sense. This model should also work for an Ender 3 V3 KE (E3V3KE).

I figured the print-in-place 608 bearing would work well enough given the low load on this part – we'll see!

Parts:

I consolidated the parts I used into the attached 3MF, and re-exported STLs using the alignment I printed in:

• SFS V2.0 Mountplate (from original model) – rotated 45° and slightly cut for better adhesion – print with a brim or a plate with strong hold
• Print-in-place 608 bearing (from this model)
• Pivot Base mount for E3V3SE – attaches in place of spool holder to heatset nuts at top of Z gantry.
• Bearing Lock – maybe a big paranoid, but it takes some play out of the bearing's press fit.

To attach to the printer, you will need 2x M5 bolts.

Installation:

(adapted from original model)

Steps:

Attach the "SFS Mount" plate to the BTT SFS using the screws from the hardware kit.

1. Insert the bearing into the “Pivot Base” plate from the back side.*
2. Line up the pegs on the SFS mount plate with the middle of the bearing, and press the two assemblies together. Use bearing lock to lock mountplate to pivot base.
3. Attach the spool holder mount plate to the top of the Z gantry using two screws.

Notes:

* This should require firm, but not excessive pressure. Someone with average hand strength should just be able to pinch the two together with just a thumb and forefinger.

If it requires significantly more pressure, check the dimensional accuracy of your printer and/or increase the hole size using “Hole Horizontal Expansion” in Cura, or the “Hole” setting for “XY Compensation” in SuperSlicer.

** If the pegs on the SFS mount plate do not hold the bearing firmly enough, you can wedge something between the prongs after adding the bearing to tighten them up.

Print Settings:

• Printer: Creality Ender 3 V3 SE
• Brim: Off, except for Mountplate
• Supports: No 
  Pivot Mount might look cleaner w/ supports, but it prints fine without them.
• Resolution: 0.2mm
• Infill: 25%/Gyroid
• Material: Elegoo Matte PLA

I hope this model is useful to somebody else. Will try to answer questions if any pop-up in the comments.