Filament sensor box
thingiverse
A precise match for a miniature switch can be sourced directly from Amazon at https://www.amazon.com/gp/product/B00MFRMFS6.
Download Model from thingiverse
With this file you will be able to print Filament sensor box with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Filament sensor box.