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Post Info TOPIC: 3D printed Dicke Berta in 1/72
Hans56


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3D printed Dicke Berta in 1/72
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Encouraged by  Arie Dijkhuis threads about 3D printed models I want to make my contribution by sharing my 3d files for the Dicke Berta.

For a long time I liked to build a model of this gun , however I could not find a suitable kit and I started scratchbuilding one based on Arie Dijkhuis drawings, but this was a slow process.

Then I discovered Steen Withers 3D model on Grabcad, and suddenly it all became a lot easier.

The drawing was scaled to 1/72 and simplified it to make it printable on our Forms2 printer.

I hope you like the results, however all credits go to Steen Winther and Arie Dijkhuis.

I started with the ‘Bettung” to use the right term, as I wanted to make the model in firing position I printed only the top half of the rear part without the spade.  I also printed the cables between the forward and aft parts and I was surprised how good the result was.

Dicke Berta.jpg

 

You can download the first set of files here





-- Edited by Hans56 on Thursday 12th of September 2019 10:59:18 PM

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Hans56


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The next parts are the gun carriage with the wheels and the clamps holding the carriage to the bottom plate. The advantage of 3D printing is that  complicated models can be made out of one piece, however with the Form2 printer there is always the support side that you have to choses carefully as it is less detailed.

Generally the optimum orientation of the part and the place and numbers of supports determine the quality and success or failure of the print; The Forms 2 printer has very good software to do this automatically but a little tweaking is always required.

As you can see the gun carriage needed a lot of supports and removing them carefully to avoid damaging the model took me the whole evening!

 

 IMG_2499s.jpg

You can download these files here.






-- Edited by Hans56 on Friday 13th of September 2019 08:59:20 PM

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Hans56


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RE: 3D printed Dicke Berta in 1/72 Part-3
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Now the small parts like hand wheels , support legs and elevation cranks are added.

This is a work in progress, some parts where to thin, they did not print well or broke easily, so in attached STL files I made various parts a bit thicker to avoid this.

I have added a drawing where the parts should be fitted but I recommend to download Steen Winthers model at https://grabcad.com/library/dicke-berta-1 to get a real good view from all angles

IMG_2504s.jpg

 

You can download the parts here.



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Hans56


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These parts are the platforms for the gun crew, I made the support of the platform thicker for strength. If you like to keep the scale thickness then make them from brass wire.

I printed the platforms in one piece to keep it all simple and strong, however if I could find the right material I preferred to use  brass etchings for the floor plates

The four ladders are fitted to the sides of the platforms.

IMG_2510s.jpg

 

Thes files you can download here.






-- Edited by Hans56 on Saturday 14th of September 2019 11:12:10 AM

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Hans56


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RE: 3D printed Dicke Berta in 1/72 Part-5
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With the gun in place it starts to look like the real thing. The breach block is a separate piece so it can be fitted in open or closed position.

When fitting the gunshield compare it with the pictures to be sure it is in right position and the angle is correct.

IMG_2522s.jpg

 

The parts you can download here.



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CharlieC


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RE: 3D printed Dicke Berta in 1/72
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Google Drive reports the file P4.rar is missing.

Fantastic project!!

Regards,

Charlie



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Hans56


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Thank Charlie for reporting, 

Should be fixed now.

 

Regards, Hans



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Arie Dijkhuis


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Hi Hans,

Great work! Thanks for crediting me, but the praise should go to Steen and your good self!

This reminds me that I still should upload the printfiles of the 10cm Kanone. I will rectifiy this inmediately.. smile

With kind regards,

-Arie.



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Arie Dijkhuis


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Hi Hans,

Out of curiosity, which type of 3D resin printer do you use?

With kind regards,

-Arie.



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Hans56


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RE: 3D printed Dicke Berta in 1/72 Part-6
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Hello Arie,

I use a formlabs form 2 printer, now almost 1,5 year in use and I am very satisfied with it.

I use standard grey resin, print on 50 micron (thinnest is 25 micron)

See here https://formlabs.com/3d-printers/form-2/

 

 Hans



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Hans56


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The following parts are for the crane and the munition tray.

A wire runs from the winch below the crew platform to the bottom of the crane through the crane and then is connected to the munition tray.

The does anyone know the correct color of the shell?

IMG_2525s.jpg

 

You can download the files here.



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Hans56


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RE: 3D printed Dicke Berta in 1/72 Part-7
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These are the last parts, the are for the platform that is fitted on the axle of the  left wheel.

Because this part is very vulnerable I left it till the last.

 

The model is now ready for painting but, this will take some time.

 

 

IMG_2531s.jpg

 

You can download the files here.

 

I hope you have enjoyed this series , and a big Thanks to Steen Winther and Arie Dijkhuis for all the work done.

(See https://landships.activeboard.com/t62609444/dicke-bertha-big-bertha-3d-model/)

 

Hans

 



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Arie Dijkhuis


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RE: 3D printed Dicke Berta in 1/72
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Hans56 wrote:

Hello Arie,

I use a formlabs form 2 printer, now almost 1,5 year in use and I am very satisfied with it.

I use standard grey resin, print on 50 micron (thinnest is 25 micron)

See here https://formlabs.com/3d-printers/form-2/

 

 Hans

 Hi Hans,

I see you use a 3D resin laser printer. I love the quality of the print! I myself use an Anyubic Photon, which is also a UV-resin printer, but not a laser printer as it has a UV display underneath the resin tank.

Great work on these printfiles!

With kind regards,

-Arie.



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Arie Dijkhuis


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Hi Hans,

You did a great job with these printfiles! The printing is coming along nicely, but is it possible that in part 5 you forgot to include the shield?

With kind regards,

-Arie.



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Hans56


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Yes you are right!

The most important thing and I forgot it.

I will correct it this evening.

 

Thanks for warning!

 File added to P5

Hans



-- Edited by Hans56 on Tuesday 17th of September 2019 06:02:46 PM

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CharlieC


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I asked about the colour of the 42cm Dicke Berta projectiles on the British Inert ordnance forum (http://www.bocn.co.uk).

Those people really do know everything about projectiles and cartridges...

Anyway looks like Panzergranate was a blue/grey colour and the Langgranate (HE) was an ochre colour. No reply on the kurze Haubengranate

yet though.

The manual pages are from a French 1919 manual on German munitions.

Regards,

Charlie

 



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