Author Topic: COMPLETED - 'Skeletal' Fokker D.VII  (Read 4527 times)

Offline sandbagger

  • Sr. Member
  • ****
  • Posts: 473
  • RAF Old and Bold
    • Wings Over Flanders Fields
COMPLETED - 'Skeletal' Fokker D.VII
« on: April 04, 2019, 01:55:14 AM »
Hi all,
The first 'FULL' build of the Fokker D.VII pair is completed.
So now I'm starting the second of the models, the 'skeletal' model.
This will be a full view model with 3D printed parts from 'Shapeways'.

The donor engine is from the 'Wingnut Wings' Fokker D.VII (OAW) built with the following replacement 3D printed components:
Created by Bob Monroe ('Flugzeugwerke') and available from ‘Shapeways’.
Mercedes D.III Oil Pump,
Mercedes D.IIIa Cylinders (hollow),
Mercedes D.IIIa Crankcase,
German Aircraft Magneto,
Mercedes Cylinder clamps,
Gun synchro mechanism,

The aircraft structure will be the 3D printed Fokker D.VII structure.
Created by Richard Andrews ('Aviattic') and available from ‘Shapeways’.

https://www.shapeways.com/marketplace/miniatures/aircraft/?q=1%2F32&s=0#more-products







There will be other after market parts used.

I thought I'd start with the engine, which had to modify slightly as the internal mountings in the 3D sump and block are too small to accept the kit supplied propeller shaft.
Instead I've made one from brass micro-tube to fit not only the 3D engine but also the 'Proper Plane' Heine propeller.

Mike









« Last Edit: August 03, 2019, 07:37:06 PM by sandbagger »


Served in the RAF for 27 years - now a retired Military Aerospace Technical Author

Offline Terri

  • Hero Member
  • *****
  • Posts: 2691
Re: Fokker pair 2
« Reply #1 on: April 04, 2019, 10:33:38 AM »
Looking forward to your build  :)



Terri

Offline sandbagger

  • Sr. Member
  • ****
  • Posts: 473
  • RAF Old and Bold
    • Wings Over Flanders Fields
Re: Fokker pair 2
« Reply #2 on: April 05, 2019, 02:25:25 AM »
Error 503 on the host server - apparently the ISS pool had to be refreshed 

OK now,



Mike


Served in the RAF for 27 years - now a retired Military Aerospace Technical Author

Offline sandbagger

  • Sr. Member
  • ****
  • Posts: 473
  • RAF Old and Bold
    • Wings Over Flanders Fields
Re: Fokker pair 2
« Reply #3 on: April 05, 2019, 06:35:05 AM »
Hi all,
A few more engine bits prepared.
Spark plugs made from micro-tube and 'RB Motion' aluminium nuts.
'Taurus' manifold locking rings - cut and sanded to fit the 3D printed engine,

Mike







Served in the RAF for 27 years - now a retired Military Aerospace Technical Author

Offline RAGIII

  • Hero Member
  • *****
  • Posts: 11757
Re: Fokker pair 2
« Reply #4 on: April 05, 2019, 08:05:58 AM »
Outstanding start! Bos' and you are taking them to a high level.
RAGIII
"A man has to know his limitations": Harry Callahan

"Don't slop it on" Lynda Geisler

Offline sandbagger

  • Sr. Member
  • ****
  • Posts: 473
  • RAF Old and Bold
    • Wings Over Flanders Fields
Re: Fokker pair 2
« Reply #5 on: April 06, 2019, 03:21:16 AM »
Hi all,
A couple of magnetos each made of four separate 3D printed parts.
The ignition leads support tube made from micro-tube.
The magneto drive modified to fit the 3D engine with a brass rod for the magneto drives.
Also the cylinders are mounted onto the engine block,

Mike







« Last Edit: April 06, 2019, 08:44:26 AM by sandbagger »


Served in the RAF for 27 years - now a retired Military Aerospace Technical Author

Offline Terri

  • Hero Member
  • *****
  • Posts: 2691
Re: Fokker pair 2
« Reply #6 on: April 06, 2019, 10:30:50 AM »
Love the details ! :)



Terri

Online gbrivio

  • Hero Member
  • *****
  • Posts: 849
Re: Fokker pair 2
« Reply #7 on: April 06, 2019, 07:03:38 PM »
I'm really impressed by the details level and looking forward to next steps. This is going to be great!
Ciao
Giuseppe

Offline sandbagger

  • Sr. Member
  • ****
  • Posts: 473
  • RAF Old and Bold
    • Wings Over Flanders Fields
Re: Fokker pair 2
« Reply #8 on: April 07, 2019, 03:28:36 AM »
Hi all,
Starting to assemble the engine accessories now.
So far the spark plugs, ignition lead support tubes, camshaft, air pump, coolant drain tap and cylinder base bridging clamps.
Still plenty more to do,

Mike








Served in the RAF for 27 years - now a retired Military Aerospace Technical Author

Offline RAGIII

  • Hero Member
  • *****
  • Posts: 11757
Re: Fokker pair 2
« Reply #9 on: April 07, 2019, 07:26:04 AM »
The engine is coming along great! I am looking forward to the next additions!
RAGIII
"A man has to know his limitations": Harry Callahan

"Don't slop it on" Lynda Geisler

Offline pepperman42

  • Hero Member
  • *****
  • Posts: 3287
  • Sergeant, my brown pants.......
Re: Fokker pair 2
« Reply #10 on: April 07, 2019, 10:59:08 PM »
Nice work!! Could you let us know which paints you used. The metallic is excellent and I know the material used in 3D printing doesn't like anything other than acrylic.

Steve
I was clean,shaved and sober and I didnt care who knew it.

Offline sandbagger

  • Sr. Member
  • ****
  • Posts: 473
  • RAF Old and Bold
    • Wings Over Flanders Fields
Re: Fokker pair 2
« Reply #11 on: April 07, 2019, 11:12:24 PM »
Hi all,
The paints used are 'Tamiya acrylics', 'Mr. Colour' and 'Alclad' lacquer.
The primers are 'AK Interactive' primer and micro-filler (Grey 758) for general and 'Alclad' Black Base (ALC-305) for their metal finishes.
Metal finish on the engine sump and block is 'Alclad' Duraluminium (ALC-102).

I've not encountered any real problems using different types of paint and primers on these 3D printed parts from 'Shapeways', which are printed using an acrylic material,

Mike


Served in the RAF for 27 years - now a retired Military Aerospace Technical Author

Offline sandbagger

  • Sr. Member
  • ****
  • Posts: 473
  • RAF Old and Bold
    • Wings Over Flanders Fields
Re: Fokker pair 2
« Reply #12 on: April 08, 2019, 02:34:47 AM »
Hi all,
The engine has progressed a bit more now with the addition:
The conical valve springs
Crankcase breather pipe
Magneto drive assembly with two 3D printed magnetos
Two air pump to crankcase pipes
Decompression valve.

Still have to add ignition leads, intake manifold with locking rings, water pump, coolant pipes, oil filler pipes, sump oil sight glass.
There's also a couple of other pipes plus engine controls.

Mike



   


Served in the RAF for 27 years - now a retired Military Aerospace Technical Author

Offline sandbagger

  • Sr. Member
  • ****
  • Posts: 473
  • RAF Old and Bold
    • Wings Over Flanders Fields
Re: Fokker pair 2
« Reply #13 on: April 08, 2019, 02:58:38 AM »
Hi Steve,
The 3D printed parts are from 'Shapeways'
The aircraft structural parts are from designs from Richard Andrews at 'Aviattic' and purchased through 'Shapeways'.
The engine parts are 'Flugzeugwerke' and again through shapeways,

https://www.shapeways.com/marketplace/miniatures/aircraft/?q=1%2F32&s=0#more-products

Mike


Served in the RAF for 27 years - now a retired Military Aerospace Technical Author

Offline sandbagger

  • Sr. Member
  • ****
  • Posts: 473
  • RAF Old and Bold
    • Wings Over Flanders Fields
Re: Fokker pair 2
« Reply #14 on: April 08, 2019, 11:12:14 PM »
Hi all,
The 3D printed parts are detailed but as can be seen from the shot below, some are very small.
This is a pair of machine gun synchronization mechanisms, each made up of four separate parts.
The biggest problem is separating them from the base block without damaging them!!

Mike




Served in the RAF for 27 years - now a retired Military Aerospace Technical Author