Caveatron seals

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Michel PEQUIGNOT

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Dec 23, 2023, 11:44:57 AM12/23/23
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Hello,

Final stretch !

I am working on the seals as the rubber ones seem to be to much hard for the plastic cases.
Here is the result printed using TPU and with a U shape. The compression distance is 0,2 mm.

I cannot guarantee the best watertight, silocon could be a better choice but, at this time, silicon 3D printers are not the most affordable.

Happy Christmas.

Michel

Michel PEQUIGNOT

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Dec 23, 2023, 11:46:45 AM12/23/23
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IMG_20231223_165517.jpg

Yakume

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Dec 24, 2023, 10:00:49 AM12/24/23
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Hi! I see you didn't replace the battery, is there a reason for that ?
Nice seal by the way!
I bought a silicone skein with the right size and it didn't give me any problem.

On Saturday, December 23, 2023 at 5:46:45 PM UTC+1 michel.p...@gmail.com wrote:
IMG_20231223_165517.jpg

Joe Mitchell

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Dec 30, 2023, 3:33:02 PM12/30/23
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I've been a bit offline lately so starting to work my way backward through the messages. Also working on a new update.

It looked like the TPU printing worked well - I've never tried printing using that material. I'll be interested to know how it works as a seal.
I have not had problems with 50 durometer Buna-N when used with some o-ring grease for short submersions, but I agree softer will probably work even better. I just have not been able to find softer off the shelf o-ring cord.

Joe

Michel PEQUIGNOT

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Jan 14, 2024, 6:50:48 AM1/14/24
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I am looking at the battery replacement. I just design a small PCB which could be an alternative to the "breadboard" one using smd components.
I am currently looking for a JST 1x02 SMT connector but it seems that the design is here.

Capture d'écran 2024-01-14 124519.png

Antonio Madrid

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Jan 16, 2024, 3:51:33 PM1/16/24
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Good idea Michel, you can find the connector male for the PCB and female with cables here :

Rgds
Toni

caveatron-discuss

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Jan 19, 2024, 4:38:12 PM1/19/24
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Michel,
Great idea to make a little custom board!
If you are willing to share the Gerber files, I will post them to the Github site.
Joe

Michel PEQUIGNOT

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Jan 20, 2024, 2:04:23 AM1/20/24
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Hello Joe,

I have some trouble to find a real SMT JST 2,54mm connector.
Currently I modify a THT right angle JST footprint but it is not the best solution > mechanical stress on the pads when the connector is disconnected.
A dot of hot glue could be an improvement.


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caveatron-discuss

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Jan 21, 2024, 12:51:07 PM1/21/24
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I'm not aware of any surface mount versions. Maybe setup the board for a through hole version and trim any excess material on the underside of the board as flat as possible?
Joe

Antonio Madrid

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Feb 4, 2024, 5:34:30 AM2/4/24
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