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Help for an adapter (3D print or other option)

us Offline Sos24

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Help for an adapter (3D print or other option)
on: June 03, 2022, 11:10:55 PM
For hiking water filter, I really like the HydroBlu Versa or Sawyer Squeeze screwed onto a collapsible water bottle. 

Recently I started using and really like the Source Nomadic collapsible water bottle.  I want to use it when I go out hiking, but it uses a proprietary opening size. 

I figured out one solution to use the filter bottle combination, but would really like a better adapter.  I’ve tried making one myself using caps and epoxy, but haven’t had luck.  I was thinking a 3D printer adapter would be great but those are skills & equipment I lack.  I know 3D printing is said not to be food safe, but if it is prior to a filter I think it should be ok.

Does anyone know where I could get some help or have an alternative idea that wouldn’t require a lot of skill or equipment. 

Source is considering making an adapter but we all know that could take a while

This is what I trying to make as one piece.


us Offline nate j

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Re: Help for an adapter (3D print or other option)
Reply #1 on: June 03, 2022, 11:49:48 PM
What about buying one of these

https://sourceoutdoor.com/product/short-tube-adapter/

then cutting the tube and inserting the Sawyer filter?


us Offline Sos24

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Re: Help for an adapter (3D print or other option)
Reply #2 on: June 04, 2022, 01:04:06 AM
What about buying one of these

https://sourceoutdoor.com/product/short-tube-adapter/

then cutting the tube and inserting the Sawyer filter?
That is part of the solution I use now.

But f I could get one piece with no hose, it would be ideal.  Plus if I had the adapter, I could use it as a lid when the filter wasn’t attached.


00 Offline Dutch_Tooler

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Re: Help for an adapter (3D print or other option)
Reply #3 on: June 04, 2022, 09:47:00 AM
Not to want to sound too sceptical, but if the plastic used in 3D FDM printing is not safe for food, I don't think the usual drinking water filters will change that... I'm not a chemist though.

Mechanically it would work, although screw thread is not easy to model in the 3D design programs I have used.
Cheers!
Dutch_Tooler

Location: Southern Germany, most of the time


us Offline Sos24

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Re: Help for an adapter (3D print or other option)
Reply #4 on: June 04, 2022, 11:53:22 AM
Not to want to sound too sceptical, but if the plastic used in 3D FDM printing is not safe for food, I don't think the usual drinking water filters will change that... I'm not a chemist though.

Mechanically it would work, although screw thread is not easy to model in the 3D design programs I have used.
Thanks for your thoughts.  You may be right.  I’ll have to look into it more.


no Offline Vidar

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Re: Help for an adapter (3D print or other option)
Reply #5 on: June 06, 2022, 12:51:26 AM
3D programs I've used will model threads easily enough, but you will still have the issue of measuring the existing threads to a sufficient precision to know what to model. And with 3D print there will typically be some scaling or shrinking issue. Nothing that can't be solved with a trial run or two to get the necessary adjustment. A somewhat flexible material will also be more forgiving I imagine.

I do believe there are food safe material alternatives for 3D printing. I'm pretty sure I've seen them offered when I've purchased various others earlier.

For this though I would likely have tried to make a mold for casting directly since you already have a physical model you want to copy. There are food safe silicon casting alternatives out there ("Bakesil" being one), or alternatively food safe thermoplastics like polyethylene.

"Simple is hard"
(Partial disclosure: I design tools for a living).


nz Offline Syncop8r

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Re: Help for an adapter (3D print or other option)
Reply #6 on: June 06, 2022, 12:59:48 AM
Not to want to sound too sceptical, but if the plastic used in 3D FDM printing is not safe for food, I don't think the usual drinking water filters will change that... I'm not a chemist though.

Biological contaminants tend to stick to sediment so filtering out the sediment removes most of them. Filtration does not remove chemicals.


nz Offline Syncop8r

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Re: Help for an adapter (3D print or other option)
Reply #7 on: June 06, 2022, 01:02:58 AM
Without looking too much into your issue, is this any help? https://sourceoutdoor.com/product/convertube/


us Offline Sos24

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Re: Help for an adapter (3D print or other option)
Reply #8 on: June 06, 2022, 01:25:37 AM
Without looking too much into your issue, is this any help? https://sourceoutdoor.com/product/convertube/

Unfortunately, not.  You would think one of the group would fit, but they didn’t make a size to fit their own soft bottle. 


nz Offline Syncop8r

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Re: Help for an adapter (3D print or other option)
Reply #9 on: June 06, 2022, 01:55:34 AM
If you're on Facebook, Homemade Wanderlust is a good group to ask in.


us Offline Sos24

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Re: Help for an adapter (3D print or other option)
Reply #10 on: June 06, 2022, 02:20:31 AM
Thanks for the suggestion.


nz Offline Syncop8r

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Re: Help for an adapter (3D print or other option)
Reply #11 on: June 22, 2022, 11:07:41 AM
Without looking too much into your issue, is this any help? https://sourceoutdoor.com/product/convertube/
Now I'm getting Source Outdoor ads on Facebook.  ::)


us Offline Sos24

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Re: Help for an adapter (3D print or other option)
Reply #12 on: July 03, 2022, 09:49:41 PM
Now I'm getting Source Outdoor ads on Facebook.  ::)
I hate when that happens. 


us Offline MadPlumbarian

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Re: Help for an adapter (3D print or other option)
Reply #13 on: July 03, 2022, 10:10:14 PM
If your using an epoxy it’s probably already not food safe, but what two parts are you joining, I can’t see, where the thread meets the flat?
JR
"The-Mad-Plumbarian" The Punisher Of Pipes!!! JR
As I sit on my Crapper Throne in the Reading Room and explode on the Commode, thinking, how my flush beat John’s and Jerry’s pair? Jack’s had to run for the Water Closet yet ended up tripping on a Can bowing and hitting his Head on the Porcelain God! 🚽


us Offline Sos24

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Help for an adapter (3D print or other option)
Reply #14 on: July 05, 2022, 12:48:57 AM
If your using an epoxy it’s probably already not food safe, but what two parts are you joining, I can’t see, where the thread meets the flat?
JR
The picture is just an example of what I want showing a failed attempt at using a food safe silicone epoxy to join the two pieces (bottom piece has a small lip that the 28mm threaded piece sits inside).  It did not hold up to the repeated screwing.on/off without leaking. 

The current solution is using the Source tube adapter and Sawyer inline adapter.  The Sawyer snaps into the Source lid when the tube is removed.  It is not as secure as one pieces would be but does work at least for day outings

For multi-day hikes I use a different system that I trust more.
« Last Edit: July 05, 2022, 12:57:14 AM by Sos24 »


 

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