Good job
I know last month the 6 way valve handle on my pool pump broke ( on a Sunday) doing a google search I found out I would have to by the whole valve so I glued it back together measured it up and printed one.

cool what material did you use to survive chlorine?

Its not much better... but http://www.yeggi.com/ being a quasi-aggregater at least gets over the 'its not on thingiverse' hump

several sites linked to on that link either dont have item stated, want you to register to download anything, you have to buy item or site is gone. so basicly you only have Thingaverse available

Thanks all!
It is about the fun and satisfaction of literally creating something out of thin air (with CAD, a machine and filament, of course) and then having it work!  Much fun!

You hit the nail on the head.
Fun, creativty ,hobby time, relaxation ...

Tin

It is about the fun and satisfaction of literally creating something out of thin air (with CAD, a machine and filament, of course) and then having it work!  Much fun!

i believe you are thinking of an angular deflection coupler, like a spider coupler or a love-joy. But, actually, based on how their coupler blew apart it looks like the fracture of a hard plastic not a soft plastic.

I think there's a decent chance this coupler is not needed for angular deflection reasons but rather just for assembly or something, one reason or another preventing a direct coupling (maybe even as a cheap destruction torque limiter.)

Yes!  The coupling was an easy method of assembly and allowed them to use identical parts for the drive components; and ALSO serves as a destructive torque limiter...Not too much need for a flex coupler as the motor and shaft are fairly well aligned.  As far as torque to operate the door, I was able to spin the driven shaft with my two fingers.  The torque issue comes into play when the door slams down too hard on the floor when closing.  I have dialed that up a notch so this does not happen.

Edit:  The Mold material idea is cool...might be my fallback if it shatters!

these couplings are made of plyable soft plastic not what 3D printers use. they are available at HVAC supply stores even a universal kit for most sizes and lengths for under $30. need 6 inch long part for many as thats average length

i believe you are thinking of an angular deflection coupler, like a spider coupler or a love-joy. But, actually, based on how their coupler blew apart it looks like the fracture of a hard plastic not a soft plastic.

I think there's a decent chance this coupler is not needed for angular deflection reasons but rather just for assembly or something, one reason or another preventing a direct coupling (maybe even as a cheap destruction torque limiter.)

(In defense of OPs repair job.)

To OP: if it turns out you needed something softer...you can take the file you have, google "OpenSCAD molding script" and use that to generate a two part mold that you fill with a cornstarch-silicone mixture (often called "Oogloo"). It would make a flexible part. That would be intense!

[At first thought it's not super easy to mold a hollow cyclinder like that, but I'm use there is a way with more thought.]

I'd love to see a repository of repair items "not found in stores".  Thingiverse is not focused enough...a site organized by category i.e.  Hoover / Vacuum / Model #XXX / Nozzles...you get the idea.

One of these days...

Cheers!

+1
And great job
Even if it doesn't meet both ends, it's not that difficult to resize the model. What...20 seconds of time?