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[DIY: 3D Printed] Bottom charger part for hotspot electronics

Posted: Sat Feb 29, 2020 12:00 pm
by F1RMB
Hi,

I've designed and printed the required parts to embed the hotspot in the original charger.
It's running since yesterday night without EMI problem (250mW).

I've uploaded all the STL and FreeCAD files to Thingiverse.

overview.png
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cameringo_2020-02-28_221306-scaled.jpg
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Enjoy.
---
Daniel

Re: [DIY: 3D Printed] Bottom charger part for hotspot electronics

Posted: Sat Feb 29, 2020 7:26 pm
by F1CXG
Seen this afternoon in action, a superb achievement, with hight precision.... as usual, (I ordered one) :mrgreen:

Re: [DIY: 3D Printed] Bottom charger part for hotspot electronics

Posted: Sat Mar 21, 2020 8:52 am
by HB3XPL
hello can you please tell me if the 2 cond. are the same 104 ? or they have diffrente values. Thanks a lot

Re: [DIY: 3D Printed] Bottom charger part for hotspot electronics

Posted: Sat Mar 21, 2020 10:31 am
by F1RMB
Hi,
HB3XPL wrote:
Sat Mar 21, 2020 8:52 am
hello can you please tell me if the 2 cond. are the same 104 ? or they have diffrente values. Thanks a lot
It's 10nF + 100nF. Look here, I've commented the picture.

Cheers.
---
Daniel

Re: [DIY: 3D Printed] Bottom charger part for hotspot electronics

Posted: Sun Mar 22, 2020 12:21 pm
by F1CXG
F1CXG wrote:
Sat Feb 29, 2020 7:26 pm
Seen this afternoon in action, a superb achievement, with hight precision.... as usual, (I ordered one) :mrgreen:

Kit delivered last week by Daniel, here is the result:

TERMINE.jpg
TERMINE.jpg (378.74 KiB) Viewed 1485 times

Re: [DIY: 3D Printed] Bottom charger part for hotspot electronics

Posted: Sun Mar 22, 2020 12:23 pm
by F1RMB
F1CXG wrote:
Sun Mar 22, 2020 12:21 pm
F1CXG wrote:
Sat Feb 29, 2020 7:26 pm
Seen this afternoon in action, a superb achievement, with hight precision.... as usual, (I ordered one) :mrgreen:

Kit delivered last week by Daniel, here is the result:


TERMINE.jpg
;)

Cheers.
---
Daniel

Re: [DIY: 3D Printed] Bottom charger part for hotspot electronics

Posted: Thu Apr 23, 2020 10:07 pm
by jobdone
I notice the copper plate is to stop RFI , the pi however is wifi, surely this will have a negative effect?

Re: [DIY: 3D Printed] Bottom charger part for hotspot electronics

Posted: Fri Apr 24, 2020 3:44 am
by F1RMB
Hi,
jobdone wrote:
Thu Apr 23, 2020 10:07 pm
I notice the copper plate is to stop RFI , the pi however is wifi, surely this will have a negative effect?
There is also a little piece of copper tape under the RPi. No, there is no huge impact, I wanted to avoid at most is the RF from the transceiver.
Also, you can find a lot of people using some cheap Simplex MMDVM hotspot installed into aluminium case.


Cheers.
---
Daniel