3D Printed Cleanout Plug Repair Gasket - with integrated O-Ring

[sastocky]

I’m starting a project to 3D print a replacement cleanout gasket using TPU filament. I’ll be using a newly purchased gasket as a reference for measurements. This specifically is for the gasket in boat years 2017-Present F3F-67609-09-00. I am willing to work on a gasket for part F0R-67609-09-00 in boat years 1999-2016. I'll need someone to help me as I have no gasket to measure, no boat to measure the cleanout profile, and no boat to test the gasket.

My first prototype will be printed with Bambu Lab TPU for AMS (68D hardness). While this is likely firmer than ideal, it should serve well for initial testing. If needed, I’ll switch to a softer TPU (around 30D hardness) for better flexibility and sealing performance. I used to work in a lab with access to durometers and hardness testers, but I no longer have access to one. If anyone has an idea of the hardness for these gaskets, let me know.

I plan to modify the gasket profile to incorporate the O-Ring profile from @TeeNGee ’s O-Ring Find. The goal is to eliminate the need for a separate O-Ring while ensuring a reliable seal every time.

Let me know if you have any ideas. I will need a few of the pros on here to help me test these if I am successful. My boat is an hour drive from any major body of water.

 

[drewkaree]

I’m starting a project to 3D print a replacement cleanout gasket using TPU filament. I’ll be using a newly purchased gasket as a reference for measurements. This specifically is for the gasket in boat years 2017-Present F3F-67609-09-00. I am willing to work on a gasket for part F0R-67609-09-00 in boat years 1999-2016. I'll need someone to help me as I have no gasket to measure, no boat to measure the cleanout profile, and no boat to test the gasket.

My first prototype will be printed with Bambu Lab TPU for AMS (68D hardness). While this is likely firmer than ideal, it should serve well for initial testing. If needed, I’ll switch to a softer TPU (around 30D hardness) for better flexibility and sealing performance. I used to work in a lab with access to durometers and hardness testers, but I no longer have access to one. If anyone has an idea of the hardness for these gaskets, let me know.

I plan to modify the gasket profile to incorporate the O-Ring profile from @TeeNGee ’s O-Ring Find. The goal is to eliminate the need for a separate O-Ring while ensuring a reliable seal every time.

Let me know if you have any ideas. I will need a few of the pros on here to help me test these if I am successful. My boat is an hour drive from any major body of water.

The last time I was working on my boat, I was going to swap out my O-rings

To make a long story short, I have the O-rings for the FOR-67609 version, and would be able to send it to you, since it's never going to be used by me.

Regarding the filament, the only two that I've seen commonly available on Amazon are 98A and 95A tpu. I don't know how that compares to the numbers you mentioned above, but I also haven't printed with TPU at all, so I haven't invested much brain power towards the process.

That'd definitely be interesting to try

Something I was thinking of today was to print a ring to drop into the groove that the additional o-ring is being inserted into, so that the OEM rubber seal rests against that.

My current starboard plug works perfectly with the additional O-ring. The port side seal kinks with the additional o-ring in place, but allows water past the seal if the additional o-ring is missing.

My thought is that I can print a PETG or PLA ring for whatever depth I need,. and if I make it waterproof, it'll float (but it shouldn't even be able to breach the metal fitting)

If you made a filler ring from tpu, you could design it for a friction fit, such that it should be quite difficult to remove, and wouldn't be lost or come out with use