Twist Lock Dust Ports (Straight Pipe)

This is a straight pipe version of my Twist Lock Dust Ports.  Previously, I had been using a magnetic locking mechanism to attach hoses to my dust collector.  But I found that often when using longer legths, or when applying a little force, these would break free.  So I was working on a new design with larger magnets and a clasp, when I came across the Tiwist Lock Vault Cylinder by @DrJones for a gift for my daughter.  I liked the simplicity of the mechanism so much that I adapted the design to scale it up for use as the locking mechanism for my dust collector ports.  

This version is intended for use with thin walled sewer pipe (typically PVC in the US), and is press-fit into the end of the pipe.  The fit should be pretty tight, not requiring glue or screws to secure it.  But if you did need to shave or add a little, it wouldn't be hard to do.  

I printed these in PETG for stregth, but ABS or ASA would work as well.  

This is a straight pipe version of my Twist Lock Dust Ports.  This design was heavily inspired by the Twist Lock Vault container by @DrJones.  The actual mechanical locking mechanism is nearly identical, with a few minor adjustments made to make the walls a little thinner, and the locking and unlocking action a little bit smoother by rounding over the edges of the lock, and making the nubs more arc-like, rather than having the low-poly inner wall.  Other than that, all I did was add the pipe wall to it and made some scaling adjustments to fit the 4" / 100mm pipe.