Select to expand quote
PacoRaapNL said..Freezer said..PacoRaapNL said..
Thank you Decrepit.
Now I have 3 Liligo's I have to do something with them.. :-)
One will become a minimal size logger only version to be tested and to be used in waterproof small pouch/bag which I use for my car key on my brest. No idea if we will have enough sats but otherwise I can reuse it for a full package version.
One will be a full view package version with a modified 3D printed version from Freeze.
The last one I keep as spare.... :-) just in case.
Question for Freeze did you use the 3M tape in for example 10mm witdh and made them up as one glue layer?
Or did you bougth and used a large 80x80mm 3M BHV piece cut to the correct size just like an one part seal?
===============
Hi Paco, great to see more Dutchy's on the forum.
I use 3M Scotch 5952 VHB-tape: 1 in. x 15 ft
The height of the epaper is exactly 1inch so I use 2 pieces left and right of the epaper and 2 pieces on the full width cut such that the height is correct. As I cannot cut perfectly straight I rotate the tape such that the outside (uncut) edges of the tape remain visible near the epaper opening.
I should make a YouTube video for easy explanation...
Hello Feeezer ?(Simon),
I got addicted to this project. Read the whole trhead twice and still have to read it once more.
If your a Strand Horst surfer we have to meet somewhere in time. this year.I have ordered the 10mm witdh tape on Ali and while reading the thread once more I have read how you progress with the tape.
nl.aliexpress.com/item/32902901228.html?spm=a2g0o.order_list.order_list_main.39.306379d2pQe2Xg&gatewayAdapt=glo2nldI also ordered some other products like SD micro adapter with large solder points/holes.
nl.aliexpress.com/item/1005005591145849.html?spm=a2g0o.order_list.order_list_main.5.306379d2pQe2Xg&gatewayAdapt=glo2nldThis way you can make the size smaller as the adapter board can be fit with hot glue on the rear of the PCB. You can shrinkwrap it first in thin shrinkwrap. I have seen someone soldering the SD card to the opened/reworked SD adpater cage, For me that is a no go. ;-)
Somethings of interest.
Waterthight 3D print parts....
I have printed several boxes in PETG and poured them full with water and let them stand still for 24 hours on tissue paper.
No leaking at all. In contrast I read people filling the 3D print with epoxy and the expoy sips through from the inside to the outside.For me this means bad print quality is bad and has nothing to do with 3D can not be water thight.
For the issue about pressure at 2 m dept as Flex describes.Make the T 5 display 1 mm below the top of the bottom 3D part.
Use a transparant top plate of 0.5mm PC or PETG sticked with the 3M tape.
www.toemen.nl/product/vivak-polyester-pet-g-platen-en-folies-250-x-500mm-05mmCover it up with a display plate which pulls/presses all to the 3D bottom part.
More sccrews will make the 3D parts less prone to disforming.
As the display size of the top part is open and the display of the T5 is 1 mm away from this top plate, it can expand under pressure where the 3M tape is the sealing and equalizer.
Worth to try as proof of concept? I have no swimmingpool to test :-(
Cheers, Paco
Yes it is Simon and I do windsurf @ Horst so we can meet in person (when temperatures go up again). No problem getting in contact directly, just send me a PM through the forum.
The micro-sd card placement is something to workaround indeed. In the 3D design we have tried to work-around it rather than resoldering the connections. I think one of Jan's friends also did a sdcard hardwiring to make things more compact. I am looking for an easy install that looks decent. As my pooring experiments have the tedency to fail (5 out of 6 units), I am using the classic design as you have on the left. The classic is more complex as it involves DD-lack, 3M tape, polycarbonate, inserts, screws and finally also butyl sealant to make it properly waterproof.
There are many levels of waterproof. I could easily make it sit in a bucket for 24hrs without leaking but crashing at 30knots slamming on the water is another thing. Expoying the whole unit is the most secure way, but no repair posibilities. I don't think I have 3D print quality issues. I mainly use PLA on a Prusa Mini plus but I also have units with PETG. Both of them were optimized for the right print temperatures. I use 0.2mm layer quality setting making things pretty nice and smooth and takes quite some time to finish. But as I don't make quantaties, time is no issue. I could poor water in it and it would stay inside after 24hrs, but with the finest/slowest/most-transparent pooring epoxy the cavities would seep. I have now a lower quality pooring epoxy that I have not used yet to check if this works better, both for pooring as well as the most important damaging the device. I still haven't figured out what is causing it. My friend BigBoss (Andres) is applying sealant on the whole PCB before pooring and it still works. It turns out that the pooring epoxy is protecting the epaper enough without the use of polycarbonate protection.
Your ideas on making a full transparent cover could be done with 3M tape and polycarbonate as well. Not just in the lid but directly on the case after some adjustments. Reopening a covered lid would be possible, although one would probably only need new polycarbonate cover. The screws and inserts can be gone and the visibility on the epaper will be enhanced. water tighness should be as good as it is now.
I'm also working on a 266 variant iso 213 what make a nice increase of size/resolution. I need to adjust the software to accomodate/utilize the increase of space/size. With the increased display I can also increase the battery size. While I currently have 2000mAh for the classic and 1300mAh for the compact, I can strech this to resp. 4000mA and 2000mA bu just using the extra display size created area internally.
But as I have quite a few other projects running, it does not get that much priority at the moment. But I got some help on the 3D design by Bart who designed the original case with us.