WWII radios and some artifacts

Hi Ricky - ref your PM about scaling the background, two pictures:

The monkey is the same size, but the background HDRI is “scaled”.

How to do this:

  1. Add a driver to the Camera’s Focal Length.

  2. Set the Variable for the driver as the Distance between Camera and Monkey - use a Distance Variable type and set the two objects as you can see in the picture below:

  1. Then set the scripted expression as var - this means the focal length will be the distance between the objects. You may have to vary this to suit your model, like saying it is var * 2 or var / 2 for example, to get the object the correct size. Maybe even something like 10 + var - you have to play with this to get the object the right size.

  2. Move the camera in its local Z axis; key G ZZ value Return. This moves the camera towards or away from the object by using positive or negative values. Grabbing the camera and moving it with your mouse doesn’t work too well, it gets all jerky, but typed values do work.

  3. Render the viewport - the Environment Image is effectively scaled.

Cheers, Clock.

I tried the world set up with the map node and the scale seems to work
I might try to change the background for something else!

I just added the Catalina / PBY-54 sub hunter 2 post before


I cannot get World Node to scale using Mapping Node, unless I just distort it by changing one axis - with them all set to 1 or all set to 10, or all set to 100 - the image always looks the same. Can you post your node setup please?

Love the Catalina - an iconic aircraft indeed!

I have the file to look at the green sub thing.

Cheers, Clock.

I used this set up and seem to work

but I will test your set up too

happy cl


started a new tube
use principle shader for most of the metal

I did change the color of inward filament to better see these !

happy cl


here is a home radio around 1939
probably a high end model covering large band of waves !
this radio covered band from 150 KHZ to 100 MHZ
which for the time was high tech !

happy cl


here is another small home radio Philco 40 - 120 around 1940

happy cl


here is another WWII radio from around 1942 in US
Philco home sets to use converted Philco car radio chassis.
A-361 was an F-1942 (Ford) AM receiv
er converted to an AC radio

happy cl


here is Military WWII phonograph - Victrola 78 RPM

happy cl

Just love what you have done here! :yum:

Cheers, Clock. :beers:

WWII is a world on itself and so many models to inspire

thanks for C & C
happy bl

red cross truck with donuts and coffee

happy bl

1 Like

here comes the Water, Bread, Coffee, and Donuts LOL

happy bl

here is the UK Short Stirling Qty made = 2371
it was use at beginning of WWII but later replace by the
Handley Page Halifax and Avro Lancaster
i’m not going to do the Page Halifax cause too many models ! LOL

happy bl

Here is the Stirling engine the Bristol Hercules II radial engine, 1,375 hp

Note: i did not show all the parts so we could better see the outside of the engine.

this engine did not use the standard Valve train using rocker , spring. timing gear / chain , cam rod
it used instead a sleeve sliding up and down inside the cylinders which required a lot of small gears.

The Wright R-2600 engine doesn’t get mentioned much either even though it’s one of the most important WWII era aircraft engines with over 50,000 produced.

So i guess with the quantity produce in WWII this was a good engine some how!

happy bl

Hey, nice model - but clarification is required, this engine is not a Stirling engine - it is a sleeve valve engine, two stroker I believe, at least most were at that time.

why do you say it is not for the short stirling
unless i got the wrong engine - hope not!


Specifications (Short Stirling I)

wiki page

engine is

Powerplant: 4 × Bristol Hercules XI 14-cylinder air-cooled sleeve-valve radial piston engines, 1,500 hp (1,100 kW) each

I did the Hercule engine that is what I found on other internet site for the short stirling

and as I said this engine was used on a lot of air plane
50 000 made !


it is with sleeves inside each cylinder and not using the Cam shafts and rods system like the Merlin engine

to me it looks like a more complicated mechanical system but if there was 50 000 made - not certain why if it was really a good engine or just what was available quickly !

happy bl

Hey, If your not a gearhead or mechanic or engine re/builder then I can see how you could be mis-informed. A Stirling engine is quite different than a Sleeve Valve engine; Here is a more detailed article
Here is the company, in the state where I live, which produces them.

wait I did not do a sterling engine !
I did an airplane model form WWII call the short Sterling
which use an engine call the Hercule model

so nothing to do with a sterling engine at all !

happy bl

Continuing the discussion from WWII radios and some artifacts:

Looks great- How did you go about putting the text above the dials? Image texture of the word and mix it in with the other material it’s on? Shrink wrap modifier?