* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: fuji-xc15-45mm-lens-case-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: fuji-xc15-45mm-lens-case-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
- [[file:../Fujifilm%20camera%20battery%20box/][Fujifilm camera battery box]]
* Files
+:PROPERTIES:
+:CUSTOM_ID: fuji-xc15-45mm-lens-case-files
+:END:
You can [[file:Fuji%20camera%20lens%20container.FCStd][download FreeCAD project]] file to tweak design or generated STL
files ready for 3D printing:
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: fuji-xc50-230mm-lens-case-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: fuji-xc50-230mm-lens-case-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
#+attr_html: :class responsive-img
[[file:assembled.png]]
* Files
+:PROPERTIES:
+:CUSTOM_ID: fuji-xc50-230mm-lens-case-files
+:END:
You can [[file:Fuji%20camera%20lens%20container.FCStd][download FreeCAD project]] file to tweak design or generated STL
files ready for 3D printing:
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: fujifilm-camera-battery-box-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: fujifilm-camera-battery-box-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
Design utilizes [[https://www.amazon.de/gp/product/B00TACKU0O/][3mm x 2mm thick neodymium magnets]].
* Files
+:PROPERTIES:
+:CUSTOM_ID: fujifilm-camera-battery-box-files
+:END:
You can [[file:body%20and%20cover.FCStd][download FreeCAD project]] file to tweak design or generated STL
files ready for 3D printing:
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: meiqqm-portable-dosimeter-case-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: meiqqm-portable-dosimeter-case-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: nano-vna-case-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: nano-vna-case-project-description
+:END:
I felt that original NanoVNA case is too fragile for carrying this
device around in the bag.
[[file:make, 4.png]]
* CAD renderings of assembled covers
+:PROPERTIES:
+:CUSTOM_ID: nano-vna-case-cad-renderings-of-assembled-covers
+:END:
CAD drawing for inner box/case:
[[file:assembled.png]]
* NanoVNA dimensions
+:PROPERTIES:
+:CUSTOM_ID: nano-vna-case-nanovna-dimensions
+:END:
Note: There are multiple variants of NanoVNA. Current project is
designed for NanoVNA with following body dimensions (excluding buttons
case.
* Ready to print STL files
+:PROPERTIES:
+:CUSTOM_ID: nano-vna-case-ready-to-print-stl-files
+:END:
-----
[[file:stylus.png]]
* CAD files
+:PROPERTIES:
+:CUSTOM_ID: nano-vna-case-cad-files
+:END:
Files can be edited using [[https://www.freecadweb.org/][FreeCAD]].
+ [[file:NanoVNA%20case.FCStd][NanoVNA case]]
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: nikon-coolpix-w150-battery-case-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: nikon-coolpix-w150-battery-case-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
Design utilizes [[https://www.amazon.de/gp/product/B00TACKU0O/][3mm x 2mm thick neodymium magnets]].
* Files
+:PROPERTIES:
+:CUSTOM_ID: nikon-coolpix-w150-battery-case-files
+:END:
You can [[file:Nikon COOLPIX W150 battery case.FCStd][download FreeCAD project]] file to tweak design or generated STL
files ready for 3D printing:
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: usb-cable-terminals-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: usb-cable-terminals-project-description
+:END:
Original cable endings could not handle all the twisting, so why not
to make new and better ones.
* PLA + rubber/TPU design
:PROPERTIES:
:ID: 36c7eef2-83a1-440d-99a6-86d826ba0621
+:CUSTOM_ID: usb-cable-terminals-pla-rubber-tpu-design
:END:
#+attr_html: :class responsive-img
[[file:PLA%20+%20TPU/make,%202.png]]
** Male connector case
+:PROPERTIES:
+:CUSTOM_ID: usb-cable-terminals-male-connector-case
+:END:
#+attr_html: :class responsive-img
[[file:PLA%20+%20TPU/male%20connector%20case.png]]
** Female connector case
+:PROPERTIES:
+:CUSTOM_ID: usb-cable-terminals-female-connector-case
+:END:
#+attr_html: :class responsive-img
[[file:PLA%20+%20TPU/female%20connector%20case,%201.png]]
* TPU only design for male connector case
:PROPERTIES:
:ID: b19bae1f-aa07-438f-aba0-276697a77355
+:CUSTOM_ID: usb-cable-terminals-tpu-only-design-for-male-connector-case
:END:
#+attr_html: :class responsive-img
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: macro-filter-storage-compartment-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: macro-filter-storage-compartment-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: microscope-slide-box-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: microscope-slide-box-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: roll-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: roll-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
overhangs that are hard to print.
* 27mm diameter roll
+:PROPERTIES:
+:CUSTOM_ID: roll-27mm-diameter-roll
+:END:
#+attr_html: :class responsive-img
[[file:roll 27mm/roll 27mm, assembled.png]]
- [[file:roll%2027mm.FCStd][FreeCAD file]]
* 55mm diameter roll
+:PROPERTIES:
+:CUSTOM_ID: roll-55mm-diameter-roll
+:END:
#+attr_html: :class responsive-img
[[file:roll 55mm/roll 55mm, assembled.png]]
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: book-stand-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: book-stand-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: dvd-organizer-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: dvd-organizer-project-description
+:END:
This 3D printable organizer allows to neatly store DVDs. Multiple
organizers can be printed and stacked horizontally, vertically or in a
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: spray-gun-holder-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: spray-gun-holder-project-description
+:END:
There is good [[https://www.amazon.de/-/en/gp/product/B01LCX8ISE/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1][Kkmoon HVLP Air Spray Gun]] on sale at Amazon. Here are
designs for 3D printable mounts for it.
** Wall mount design
+:PROPERTIES:
+:CUSTOM_ID: spray-gun-holder-wall-mount-design
+:END:
Photo:
- [[file:holder.stl][Printable STL file]]
- [[file:holder.FCStd][Editable FreeCAD file]]
** Under desk mount design
+:PROPERTIES:
+:CUSTOM_ID: spray-gun-holder-under-desk-mount-design
+:END:
Render:
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: wall-mounted-shelf-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: wall-mounted-shelf-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: lead-acid-battery-charger-and-terminal-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: lead-acid-battery-charger-and-terminal-project-description
+:END:
I needed dual voltage power supply for my lab that runs on mains
electricity (wall power) and slowly charges (use-changing) attached
12V Lead-Acid battery. Lead-acid battery in turn provides high current
+ [[file:body%20and%20covers/body%20and%20covers.FCStd][Body and covers FreeCAD project]]
* Transformer and AC to DC converter
+:PROPERTIES:
+:CUSTOM_ID: lead-acid-battery-charger-and-terminal-transformer-and-ac-to-dc-converter
+:END:
This is where high voltage from mains electricity enters the system.
* Main board
:PROPERTIES:
:ID: 65d68227-4bf2-4c4f-b4d3-c390bc6a9c34
+:CUSTOM_ID: lead-acid-battery-charger-and-terminal-main-board
:END:
This is logically main board because it appears to be central hub that
* Current limiter
:PROPERTIES:
:ID: afc22d23-9bc4-421c-9cac-e0ce34bd36bc
+:CUSTOM_ID: lead-acid-battery-charger-and-terminal-current-limiter
:END:
Schematic:
* Indicator panel
:PROPERTIES:
:ID: c9a69490-f920-4a31-b32e-b101bfc3d01b
+:CUSTOM_ID: lead-acid-battery-charger-and-terminal-indicator-panel
:END:
#+attr_html: :class responsive-img
* Connector terminal
:PROPERTIES:
:ID: e33940bd-652f-4ec0-b53b-1c03e16941c8
+:CUSTOM_ID: lead-acid-battery-charger-and-terminal-connector-terminal
:END:
Schematic:
+ [[file:connector%20terminal/connector%20terminal.FCStd][FreeCAD project]]
* Calibration
+:PROPERTIES:
+:CUSTOM_ID: lead-acid-battery-charger-and-terminal-calibration
+:END:
Since device uses adjustable step-down modules, these need to be
calibrated to provide correct output voltage. It is important that
* Introduction
+:PROPERTIES:
+:CUSTOM_ID: lab-heater-and-cooler-introduction
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
[[file:make, bottom.png]]
* Files
+:PROPERTIES:
+:CUSTOM_ID: lab-heater-and-cooler-files
+:END:
+ [[file:Lab heater and cooler.FCStd][FreeCAD design file]]
3D printable STL files:
** Main body of the construction
+:PROPERTIES:
+:CUSTOM_ID: lab-heater-and-cooler-main-body-of-the-construction
+:END:
#+attr_html: :class responsive-img
[[file:body.stl]]
- [[file:body, 2.png]]
** Top cover
+:PROPERTIES:
+:CUSTOM_ID: lab-heater-and-cooler-top-cover
+:END:
#+attr_html: :class responsive-img
[[file:top cover.stl]]
- [[file:top cover.png]]
** Bottom cover
+:PROPERTIES:
+:CUSTOM_ID: lab-heater-and-cooler-bottom-cover
+:END:
#+attr_html: :class responsive-img
[[file:bottom cover.stl]]
* License and Disclaimer
+:PROPERTIES:
+:CUSTOM_ID: lab-heater-and-cooler-license-and-disclaimer
+:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
DESIGNS AT YOUR OWN RISK.
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: usb-desk-fan-mod-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: usb-desk-fan-mod-project-description
+:END:
End-result looks like this:
#+attr_html: :class responsive-img
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: adjustable-resistor-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: adjustable-resistor-project-description
+:END:
I needed a way to experimentally find resistance that works best in
certain circuits. Usual potentiometers could not handle required power
dissipation and were not precise enough.
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: alternative-usb-layout-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: alternative-usb-layout-project-description
+:END:
*Warning!* Here I describe a hack that I personally found useful for
my own needs. But it is dangerous. Not to be replicated unless you
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: battery-tester-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: battery-tester-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: cable-organizer-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: cable-organizer-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
[[file:body.png]]
* Files
+:PROPERTIES:
+:CUSTOM_ID: cable-organizer-files
+:END:
You can [[file:body.FCStd][download FreeCAD project]] file to tweak design or generated STL
file ready for 3D printing:
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: headphone-hub-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: headphone-hub-project-description
+:END:
Simple hub that allows connecting up to 4 devices via headphone
jack. For example single laptop or mp3 player can power up to 3
headphones.
[[file:cover,%202.png]]
* Download
+:PROPERTIES:
+:CUSTOM_ID: headphone-hub-download
+:END:
- [[file:hub.FCStd][FreeCAD project]]
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: hook-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: hook-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
[[file:hook.png]]
* Files
+:PROPERTIES:
+:CUSTOM_ID: hook-files
+:END:
You can [[file:hook.FCStd][download FreeCAD project]] file to tweak design or generated STL
file ready for 3D printing:
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: portable-stereo-active-speaker-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: portable-stereo-active-speaker-project-description
+:END:
I had pair of good compact stereo speakers lying uselessly around as
well as secondhand TDA2030 Chinese knockoff audio amplifier chips.
Also I wanted to test modular construction approach: motherboard with
120x120x120mm. Maximum for my printer.
* Battery holder
+:PROPERTIES:
+:CUSTOM_ID: portable-stereo-active-speaker-battery-holder
+:END:
Device is powered by 4 times AA NiMH batteries (1.2V each).
#+attr_html: :class responsive-img
[[file:battery%20holder/mounted%20on%20the%20back.png]]
* 20V up-step module
+:PROPERTIES:
+:CUSTOM_ID: portable-stereo-active-speaker-20v-up-step-module
+:END:
Battery pack voltage is routed through main on/off switch on the front
panel, and then it goes to the 20V up-step module.
[[file:20V%20upstep%20module/make.png]]
* Main board
+:PROPERTIES:
+:CUSTOM_ID: portable-stereo-active-speaker-main-board
+:END:
Voltage upstep above sits on top of main board (motherboard). It has
uniform central bus that spans all connectors.
[[file:main%20board/board%20fixator.png]]
* Mono audio amplifier module
+:PROPERTIES:
+:CUSTOM_ID: portable-stereo-active-speaker-mono-audio-amplifier-module
+:END:
Design uses scavenged secondhand Chinese TDA2030 audio amp
clones. Each chip is mono audio amplifier. Therefore 2 almost
Here copper tape is used as improvised heatsink.
* Speakers
+:PROPERTIES:
+:CUSTOM_ID: portable-stereo-active-speaker-speakers
+:END:
High frequency small speaker and medium frequency bigger speaker are
combined.
[[file:speakers/make.png]]
* Front panel
+:PROPERTIES:
+:CUSTOM_ID: portable-stereo-active-speaker-front-panel
+:END:
Initial idea was really simple panel:
+ on/off switch
[[file:front%20panel/attachment.png]]
* Extra capacitors
+:PROPERTIES:
+:CUSTOM_ID: portable-stereo-active-speaker-extra-capacitors
+:END:
Another thing that become clear during load-testing: output
power/volume can be further enhanced by adding high power capacitors
to even out load on primary 20V up-step module.
[[file:extra%20capacitors/make.png]]
* Center box
+:PROPERTIES:
+:CUSTOM_ID: portable-stereo-active-speaker-center-box
+:END:
Last physical part, to attach it all together: central body.
+ [[file:center%20box/center%20box.stl][STL file]]
* Conclusions / TODO
+:PROPERTIES:
+:CUSTOM_ID: portable-stereo-active-speaker-conclusions-todo
+:END:
Photo of initial PSU + audio amp test:
#+attr_html: :class responsive-img
[[file:initial%20test.png]]
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: round-pincers-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: round-pincers-project-description
+:END:
Pincers allow to push LEGO EV3 rounded pins in and also pull them out.
#+attr_html: :class responsive-img
[[file:make, 2.png]]
* Download
+:PROPERTIES:
+:CUSTOM_ID: round-pincers-download
+:END:
- [[file:round pincers.FCStd][FreeCAD project]]
- [[file:round pincers.stl][STL file]]
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: window-fixator-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: window-fixator-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: 35mm-film-copying-device-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: 35mm-film-copying-device-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: fujifilm-x-mount-microscope-adapter-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: fujifilm-x-mount-microscope-adapter-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]hh
* General
:PROPERTIES:
-:CUSTOM_ID: general
+:CUSTOM_ID: gyro-for-binoculars-general
:END:
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+:PROPERTIES:
+:CUSTOM_ID: gyro-for-binoculars-project-description
+:END:
#+attr_html: :class responsive-img
[[file:make.png]]
[[file:make,%204.png]]
* Conclusion
+:PROPERTIES:
+:CUSTOM_ID: gyro-for-binoculars-conclusion
+:END:
Around half of the stabilizing effect already comes from extra weight
that is added to binoculars by device itself. Rotating platters
contribute also about as much. I had only 2 platters. I'm
[[file:../../index.html][Back to physical projects]]
* gear 1
+:PROPERTIES:
+:CUSTOM_ID: microscope-motor-wip-gear-1
+:END:
| pitch circle | ~60 mm |
| number of teeth | 40 |
| module | 1.5 mm |
| pressure angle | 20 |
* gear 2
+:PROPERTIES:
+:CUSTOM_ID: microscope-motor-wip-gear-2
+:END:
| number of teeth | 9 |
| module | 1.5 mm |
| pressure angle | 20 |
* 3
+:PROPERTIES:
+:CUSTOM_ID: microscope-motor-wip-3
+:END:
| number of teeth | 9 |
| module | 1.5 mm |
#+HTML_HEAD: <link rel="stylesheet" href="style.css"/>
* Overview
+:PROPERTIES:
+:CUSTOM_ID: overview
+:END:
Collection of physical projects. Electronics, 3D designs etc..
+ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE
* Cases, covers, holders, organizers
:PROPERTIES:
:ID: 912eecb9-4499-420a-9163-ae89d72c6b43
+:CUSTOM_ID: cases-covers-holders-organizers
:END:
** Measurement device cases
:PROPERTIES:
:ID: 2a7fc74d-d4f8-45c0-978e-30d7853e6633
+:CUSTOM_ID: measurement-device-cases
:END:
+ Meiqqm portable dosimeter (Geiger–Müller counter) case
** Optics
:PROPERTIES:
:ID: f8828b3b-0bc9-4cf8-9718-295dee4bb41b
+:CUSTOM_ID: cases-optics
:END:
+ Case for 52mm macro filter
{{{imglnk(
** Cable / wire
:PROPERTIES:
:ID: 3121f0c4-604e-43c0-a3cc-0b6ec65fb3e3
+:CUSTOM_ID: cable-wire
:END:
+ Cable organizer
{{{imglnk(
* Furniture
:PROPERTIES:
:ID: f7e373e1-aaa8-48f0-be2d-f677e58dd820
+:CUSTOM_ID: furniture
:END:
* Miscellaneous
:PROPERTIES:
:ID: 6ad212d0-aaca-4d9c-9ad8-f380239cb0eb
+:CUSTOM_ID: miscellaneous
:END:
+ 12V Lead-Acid battery charger and terminal
{{{imglnk(
)}}}
** Audio
+:PROPERTIES:
+:CUSTOM_ID: audio
+:END:
+ Portable stereo speaker.
{{{imglnk(
* Optics
:PROPERTIES:
:ID: 56fe49c7-347a-4a92-84dd-3e74623c1233
+:CUSTOM_ID: optics
:END:
+ 35mm film copying device.
)}}}
* Repository
+:PROPERTIES:
+:CUSTOM_ID: repository
+:END:
+ Designs in this repository are released under Creative Commons Zero
(CC0) license.
+ [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
** Git repository
+:PROPERTIES:
+:CUSTOM_ID: git-repository
+:END:
- [[https://www2.svjatoslav.eu/gitweb/?p=physical.git;a=snapshot;h=HEAD;sf=tgz][Download latest snapshot in TAR GZ format]]
- [[https://www2.svjatoslav.eu/gitweb/?p=physical.git;a=summary][Browse Git repository online]]