Beware of cheap underperforming clones

As of 2022 there are many badly performing clones on the market. V2/3GHz NanoVNA uses parts like ADF4350 and AD8342 which are costly and clones have been cutting costs by using salvaged or reject parts.

See official store and look for V2 Plus4/V2 Plus4 Pro versions only to avoid getting a bad clone. We have stopped selling V2.2 versions since October 2020, so all V2 hardware that are not Plus or Plus4 are not made by us and we can not guarantee performance.

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Off subject - need 3D experts opinion

Anne Ranch 2022/09/02 18:24

I am posting this here because in past  some users build 3D enclosures for nanoVNA
I am wondering if bakelite  box of 1949 vintage could be duplicated using 3D printer.
It is by NO meas "squared" and I have no idea if such shape could  be programmed in 3D software .
All I am asking the real 3D users  - can that be done ?

VNA2 2022/09/03 07:56

I have a 3d printer and have operated 2 different models.  The box you reference is a bit large for most home 3d printers and very large for the nanoVNA.  A filament printer would have no problem printing the shape.  Most home 3d printers are capable of printing an equivalent box larger than you would require for a nanoVNA.  If you are considering buying a 3d printer, compare the software that is compatible to printers you are interested in before ordering the printer.  There is software to design (draw) a 3d object, and software to slice it into a file compatible to a 3d printer.  All slicer software does not support all printers out of the box.  Some software has plugins available that can make it compatible to your printer.  There will likely be a little trial and error getting started.  If there is a Maker Space near you, you can get assistance there, as well as on line in 3d print forums.  If you are smart enough to use a nanoVNA, you are smart enough to handle 3d printing.  Check out thingiverse (not misspelled) online for what can be done.

AA4LC 2022/09/03 11:11

The shape can be programmed in most of the popular 3D CAD programs.  It
would not be a rectangular box, but a collection of intersecting
cylinders, spheres and fillets.  Bakelite needed lots of "draft angle"
to pop the plastic out of the molds and it tended to crack along sharp
corners, so large radius curves and sloped sides.

3D filament prints will have a fine line pattern, not the smooth finish
of the pictured item.   May not meet your project needs, or may be
acceptable.  Print direction will determine how much plastic you need,
since may be lots of scrap/fill/support needed.

On 9/2/2022 9:24 PM, Anne Ranch wrote:

Dave Rypma - VE3HTC 2022/09/03 08:14

Without specifications for all the curves, holes and indents, it would be a challenge, but with a tool like FreeCAD, you can render almost anything and then turn it into a STL file for printing on a 3D printer.
Dave Rypma

Anne Ranch 2022/09/03 14:10

Thanks for all the encouraging words. I am going to "abuse" my highschool
grandchildren 3D printer and their knowledge...
I was basically concerned about the box NON square shape...

On Sat, Sep 3, 2022 at 1:59 PM Dave Rypma - VE3HTC / VE3DTR <> wrote:

AA4LC 2022/09/03 18:07

Attached STL file will make sense to the grandkids.   You just want to
make more of the surfaces curved !!

Your case will be somewhat similar, with the back surface open and
flat.  If you need a closed back, they will need to draw another back
piece to print.

On 9/3/2022 2:10 PM, Anne Ranch wrote:

Anne Ranch 2022/09/04 18:29

OK , downloaded two software applications,,,
One of them has "camera (position ?) "
Did not RTFM so not sure what it means / does.
It would be nice to be able to take a picture and have at least some basic dimensions of the box...
...but that is definitely of subject here ....

AA4LC 2022/09/05 11:36

Everybody doing 3D printing has their own preference and expectations on
the STL file viewer, so I generally don't make suggestions on that part
of the process!   Windows 10 and later include 3DPRINT in the Windows
Accessories Start menu, which is good for quick looks at STL files. 
Meshlab is an excellent free viewer, but it is not very intuitive!  The
file i posted is simply a shell with large rounded corners, for you to
visualize 3D printing is not only sharp, square corners.

3DPrint has X and Y axis scales embedded for size in millimeters.  But
it is easy to scale up or down when one prints, to get a specific size.

Camera is one of the bias issues between graphics rendering (looking at
'pictures') and 3D modeling.   3D modeling operates with coordinates
based on the printing table.   Camera looks at the model based or
rotation and elevation of a viewpoint around a rendering of 3D model. 
Think of a small box on a vertical stick, then using your phone camera
to look from various angles around it.

In your original post, you did not mention size.  Lots of options if you
need a small model, like for a doll house display with resin printing. 
Most filament printers will allow 200 x 200 mm x 180 mm high, but that
is somewhat smaller than the original radio size.   There are larger
filament printers that will do 300 x 300 mm, allowing a cubic foot
module volume.   Once you have the model at your desired scale, the kids
can section the print to fit their printer, then glue the pieces
together for your cabinet and paint it, if this is a one-off project. 
They have used that process to make cosplay masks and   costumes, I bet!


On 9/4/2022 9:29 PM, Anne Ranch wrote:

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