A better CR-10s Filament Runout Sensor Upgrade

For all Creality CR-10s owners,
a much better filament runout sensor housing assembly than the stock CR-10s filament sensor.

The STL is available on Thingiverse here
https://www.thingiverse.com/thing:293...

Owning a few Creality CR-10s 3D printers myself, I was not happy with the design of the stock
filament runout sensor. The stock sensor would constantly push off the X bar bracket when the
filament was retracted and sometimes get stuck holding filament from extruding and causing
print failures. So, I designed a new sensor housing from scratch to use the same internal
sensor switch PCB and M3 screws.

My design firmly snugs the X bar bracket without getting in the way of the lead screw or
extruder assembly or stepper motor. I also made two versions. Both versions have a holder to
keep the hot end cable out of the way of the Y bed. One version has a long bottom mount with a
bolt hole for the X bar carriage. And the other version (short) is quicker to print without
that longer bottom mount. Both versions are designed to mount snuggly to the X bar extruder
bracket. Also, I designed the sensor assembly to allow the filament to feed in and retract
with minimal resistance via tapering the guide holes to prevent sharp edges for the filament
to catch on.

Fair warning, this design can be challenging to print on a stock CR-10 or CR-10s that has not
been carefully calibrated and assembled properly. I recommend printing at 60 microns for
tolerance reasons.

Licensing info:
This is an USA registered copyright and international copyright work.
My release of this design is licensed with a
modified Creative Commons attribution non-commercial no-derivatives license with a modification
that allows me the right to revoke the license at any time from individuals or companies which
I deem are abusing the license. If you wish to include this design in a kit you wish to sell or
if you wish to sell this design produced as a product, you may contact me for a commercial
license via my LinkedIn profile or twitter. Those profile links are below.
  / davidaelevy  
  / davidaelevy  

These settings are for PLA Filament with CR-10 and CR-10s stock printers
Extruder Tip Diameter 0.4
Retraction 5mm
Retraction Speed 3600
Layer Height 0.06mm
Top Layers 6
Bottom Layers 6
Perimeter Walls 4
1st Layer Height Percent 180
1st Layer Width Percent 110
1st Layer Speed Percent 40
1st layer temp 215
Skirt Layers 8
Skirt Outlines 2
Skirt Offset 2
Support On
Extruder Temp 210
Bed Temp 60
Print time is going to be approximately 20 hours depending on what slicer and additional settings you use.
Gcode files are included for two different versions of this improved runout sensor housing for the CR-10s

Music track is by Josh Woodward and is called Learn To Fly on on his Here Today album track #06 and is a royalty free song.