The STL file is free, but you will need to create an account, add to cart and "check out" to download it. Jonah designed this key ring separator to make taking keys (& other things) on and off...

Push-Fit Connector - 4mm | Bondtech

Bondtech

$3.49

Bondtech Brass Push-fit Connector for 4mm tube 4mm assembles in 8mm pocket, with a minimum depth of 5 mm. Note: If you are having trouble with the Bowden tube popping out, read...

Metal Push-Fit Connector - 4mm | Bondtech

Bondtech

$2.10

Bondtech Metal Push-Fit Connector For 4mm Tube Thread G1/8″ Note: If you are having trouble with the Bowden tube popping out, click here and go the Bowden tube...

Ferrite Core Anti-Interference Ring - 5 Pack

Other

$3.99

Ferrite Core Anti-Interference Ring Sold in sets of 5 Size: 9x5x5mm

Push-Fit ECAS - 4mm | Bondtech

Bondtech

$2.49

Push-Fit ECAS - 4mm For use on the BondTech BMG Extruder and the Bondtech DDS for CR-10S Sold in units of 1