#Watertight RAK19007/3 Case

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spring bronze
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Developed this case over the weekend in the effort to secure this radio for outdoor activities. Takes two main orings, and then one more per antenna used. Charging port and reset button are stored under a twistlock sealed cap at the bottom while the lid is secured over another oring at the top with M3 screws. Feedback highly appreciated. Updated the model this morning with a few tweaks, and an alignment adjustment so that the insert can only go into the case one way, preventing USB access misalignment.

Available free at Makerworld: https://makerworld.com/en/models/756323#profileId-690587

This is designed as an attempt to be a watertight radio case for the RAK WisBlock 19007 and 19003 series Meshtastic radios starter kits (with 2000mah battery) with room for GPS board and antenna.. I've attached the blend files, the stls and the 3mf file. There are two options for the cap, depending on the external antenna count. If using a squar...

dark island
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You should add a belt clip

spring bronze
next zealot
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Beautiful

spring bronze
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Working on V2. So far, changes are:

  • Much smoother bottom cap action.
  • Belt clip option, at @dark island 's request.
  • A spot for a power switch, and a place in the internal slide to mount it.
dark island
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For the clip you could use a baofeng belt clip off of Amazon

spring bronze
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I just 3d printed one to screw on. Might as well

pulsar thorn
spring bronze
spring bronze
spring bronze
pulsar thorn
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Gave this a print last night ๐Ÿ™‚

First, thanks! Pretty simple design. Really nice of you to take the time to put this out there

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The files on the project don't have all of the individual models, but thats ok. Oddly enough the "RAKBlockSeals.stl" has all of the parts, so it was just a matter of dividing the objects up.

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I Have some more feedback if you'd like to hear, but I think it's a bit rude to assume a person on the internet wants it, esp if they gave you something for free. So I'll leave it at "Thank you! this is awesome!". I do have a few ideas if thats something you want to hear! cheers

spring bronze
pulsar thorn
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Awesome! So I think the two pieces of feedback I have are:

Around the antenna: there needs to be more surface area for a seal. The best solution I could think of is:

  1. Extend the hex cutout down or up, to form a hexagonal tube. Length about about 1cm. This would allow a person to push a pigtail in, then seal it by packing the tube with silicone.

Around the belt clips holes: I would say the best option here is to not have these penetrate the casing at all.

  1. Instead, how about giving the user an option to press in brass inserts? A lot of commercial radios actually do this. This also would create an option for different mounts, like MOLLE mount or something. Provide about 3-4mm of "wall" with a hole that an insert could be hot pressed into using a soldering iron. No holes means no leaks!

As far as swappable battery thats pretty awesome! Waterproofing the connection will be interesting, can wait to see what you come up with.

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I am a tiny bit worried about the seal on the removable cap. A secondary seal on the interior of the cap wouldn't be a bad idea ๐Ÿ™‚ I was thinking of printing a thin TPU circle and sticking it to the inside of the removable cap.

spring bronze
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So I'm seating an O-ring under the washers that hold the antenna pigtail in place, rather than packing it with silicone.

For the belt clip, I had that thought as well, but if you look at the back of the belt clip, it has a small recess for o rings there as well.

pulsar thorn
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@spring bronze I found an additional problem if you're open for more feedback ๐Ÿ™‚ On the "screw cap" feature, the wall thickness behind the oring is quite thin. Obviously one could be gentle here when handling, but it would be nice if we had 1mm-2mm walls here. I found that it was not hard to break. It looks like perhaps the fixed cap also has the same issue? Since it's not removeable it may not be a big deal.

The only other feedback I have is to add a lanyard loop holes to the cap and body; so if you disconnect the cap in the dark and drop it, it's not gone forever in the woods.

Thank you again for consideration! Very few water-resistant designs are available and everyone appreciates you putting this out there.

spring bronze
obsidian needle
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Hope this is OK. I chopped off the bottom and used the second antenna spot to drop in a cheap USB-C female charging port. This works great with a FakeTec node screwed down into the RAK sled ๐Ÿ‘Œ. Thanks for your great designs!

spring bronze
obsidian needle
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Should mention that I'm using your original version unmodified for a handheld. Just needed a slightly shorter one to put in a pocket on my dog's winter coat and loved your design so I adapted it to fit. Thanks again!

tight phoenix
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Thank you for the design. I've made quite a number now, and have started pre building the battery and switch harnesses beforehand so it takes no soldering during assembly. Cheers!!

marble fjord
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Is this all 3d printed? Even the seals? I would love to make one I have a battery already and a RAK and some smas donโ€™t know what else I need

tight phoenix
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I find the all work except the bottom one, I think that should stay as an O-Ring

marble fjord
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Cool how water proof is this? Like fully submerged? @tight phoenix

tight phoenix
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@spring bronze

Hey Chief, the files for Switch + no belt clip don't have the updated "smoothing" on the bottom exterior round area of the twist-lock, and requires smoothing with a file and sandpaper.

I thought this was just the default, but the belt clip variant prints nice and round, without the facets that cause interference issues.

Thought to let you know!

spring bronze