Latest Project: Matchbox 1/32 Bf-109E-3

Latest Project: Matchbox 1/32 Bf-109E-3

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dr_gn

Original Poster:

16,189 posts

185 months

Friday 12th November 2010
quotequote all
The real Apache said:
dr_gn said:
The real Apache said:
nice work dr, are you going to give it a matt finish then some dirt/weathering?
Yes: the gloss coat looks terrible, but you need it so that the dark wash just fills the engraved detail, without staining the (initially) matt painted surface. Decals adhere to a gloss surface better too.

The plan is to add some stencil decals here and there, then paint some paint chips/scuffs at random along the panel lines, then airbrush some exhaust/gun smoke, then add a bit of oil staining/grime/mud in a few places then an overall coat of XDFF extremely matt varnish to everything. It will look better then.
I used to do it completely differently, but that was decades ago, by weathering at the finale using a brush, slightly loaded with dirty turps and blowingit onto the area I wanted to 'age/stain/weather' things have moved on I guess
I try to give myself a second chance with weathering where possible! Applying weathering to a matt surface is a one chance process and I'm not confident enough to do it that way. If you apply an enamel based wash to a glossy acrylic surface and you make a mistake, you can wipe the enamel off with thinners and it won't touch the acrylic base. Same with pastel/chalk weathering, the Tamiya "Weathering Master" mascara stuff is very slightly sticky, so it will adhere to a gloss surface, but you can wipe it off and start again if necessary. That's the theory.

dr_gn

Original Poster:

16,189 posts

185 months

Sunday 14th November 2010
quotequote all
Few detail bits I wanted to get sorted:

First of all there are some strange jackets around the MG-17 gun muzzles - presumably some kind of gas seal around the cowling. I made these from heat shrink tubing shrunk around the correct sized drill bit. They were then sliced against an internal plug (to stop crushing) to form an elliptical edge. The lock bands are scrap phot-etch annealed and wrapped around a drill. I drew the line at making the actual buckles! Let's say they are underneath and not visible on "White 5" whistle :



Here they are painted and washed:



The rapid-prototyped hollow exhaust stubs required some 'shadow plates' attaching to represent the bits of the headers that bolt to the engine. These were made form plastic card. They are barely visible, and only from above so don't need any 'depth'. The join between the metal stubs and the plastic card is hidden within the fuselage exhaust aperture :



And some random things: navigation lights from stretched clear sprue, bulbed at in a flame at the end and painted with re/greem mixed with gloss varnish (the Klear/cooking dye method I used on the Spitfire has faded to clear BTW). The rear rudder light was stuck into some White-Tak and sprayed white around the base to reprent a bulb housing.

The spring shock absorber for the canopy is there too: its fuse wire wrapped around two opposed "U" sections of photo-etch.

Last thing for now is the antenna. I used black stretched sprue with a section of stainless wire stuck to the end. this will be passed through the mast hole and spiral wrapped to represent the tensioning spring. There are some wierd cone things at each end of the wire (presumably tiny aerodynamic fairings). I'm making these by cutting the tips off some robotic glueing nozzles that I'm using at work:



Here they are on the Duxford 'Emil':




perdu

4,884 posts

200 months

Sunday 14th November 2010
quotequote all
looks good again (can't believe you bottled the fasteners on the straps he he only kidding}

A good idea to use shrink tubing

I imagine the sleeves are to stop a build up of air pressure inside the cowling and they must work, how many pictures of Bf (or Me) 109s have we seen with cowlings blown out by air pressure? Exactly... they must work*

I think the cones are intended to stop signal loss by water running down the HF wires and earthing against the airframe. Sort of like the glass and ceramic flashover insulators on power pylons


[i]*I'd have a few bob on me being entirely wrong here

both times[/i]

any way it's looking gooder all the time

b

dr_gn

Original Poster:

16,189 posts

185 months

Sunday 14th November 2010
quotequote all
perdu said:
looks good again (can't believe you bottled the fasteners on the straps he he only kidding}

A good idea to use shrink tubing

I imagine the sleeves are to stop a build up of air pressure inside the cowling and they must work, how many pictures of Bf (or Me) 109s have we seen with cowlings blown out by air pressure? Exactly... they must work*

I think the cones are intended to stop signal loss by water running down the HF wires and earthing against the airframe. Sort of like the glass and ceramic flashover insulators on power pylons


[i]*I'd have a few bob on me being entirely wrong here

both times[/i]

any way it's looking gooder all the time

b
Those are interesting theories Perdu. No idea about either really, but the water deflector sounds feasible. They do remind me of the trailing cone sensors on test aircraft, which is why I thought stabilisation:



Cowlings blown out - do you mean the top rear of the engine cover? I thought I read that some had the engine cowling rear edge flared upwards for better ventilation (White 5 has this feature judging by photos) and the Matchbox version features this too. Having said that, many pictures of '109's don't show it, nor do the majority of models. Don't forget there are two open vents in front on the gun troughs, and the oil cooler duct, all of which would allow air to enter the engine bay. The canvas/leather cover over the rear of the instrument panel was to stop ingress of machine gun gasses into the cockpit, so I assumed the muzzle seals were an additional measure against this?

Not long now...waiting for some Eduard stencil decals from a surplus stash in Canada believe it or not! then it's paint chippng, and a bit of smoke staining.

Cheers!

Eric Mc

122,174 posts

266 months

Tuesday 16th November 2010
quotequote all
Hi folks. Just back from Telford

I think those cones on the antenna wires are ceramic isolaters - as Perdu intimated.


dr_gn

Original Poster:

16,189 posts

185 months

Tuesday 16th November 2010
quotequote all
Eric Mc said:
Hi folks. Just back from Telford

I think those cones on the antenna wires are ceramic isolaters - as Perdu intimated.
Eric,

The cones are metallic, and fit directly to the wire. The white joiners on the wire are the insulators.

Cheers,

Eric Mc

122,174 posts

266 months

Tuesday 16th November 2010
quotequote all
dr_gn said:
Eric Mc said:
Hi folks. Just back from Telford

I think those cones on the antenna wires are ceramic isolaters - as Perdu intimated.
Eric,

The cones are metallic, and fit directly to the wire. The white joiners on the wire are the insulators.

Cheers,
I think that the cones would be shields for the isolaters. Some aircraft have them and some don't.

dr_gn

Original Poster:

16,189 posts

185 months

Tuesday 16th November 2010
quotequote all
One tricky thing to get right on a '109 is the u/c leg angles. They are angled both forwards and outwards. I made a very simple balsa wood jig to get this right, so hopefully it will work out (even though it's difficult to account for any spring in the plastic.) I've used plastic cement in the centre of the attachment points, surrounded by a bead of araldite to give some extra support:


Hard-Drive

4,102 posts

230 months

Friday 19th November 2010
quotequote all
Come on, come on, dying to see this with the canopy masking removed!

dr_gn

Original Poster:

16,189 posts

185 months

Friday 19th November 2010
quotequote all
Hard-Drive said:
Come on, come on, dying to see this with the canopy masking removed!
Same here! Someone on Britmodeller from Canada very kindly offered to send me some spare stencil decals from an 1/32 Eduard '109 kit, but they haven't arrived as yet, so can't make any more progress.

perdu

4,884 posts

200 months

Friday 19th November 2010
quotequote all
How long is it safe to leave the canopy masking in place?

I remember some masking I used that hardened in place and was hell to remove afterwards

I dont think it was Maskol, but rather something a mate suggested in a model shop

But senility reigns... I cant remember what it was called

The 109 is looking rather nice, I see you found another good use for balsa smile

dr_gn

Original Poster:

16,189 posts

185 months

Friday 19th November 2010
quotequote all
perdu said:
How long is it safe to leave the canopy masking in place?

I remember some masking I used that hardened in place and was hell to remove afterwards

I dont think it was Maskol, but rather something a mate suggested in a model shop

But senility reigns... I cant remember what it was called

The 109 is looking rather nice, I see you found another good use for balsa smile
Perdu,

The decals arrived today: they're already on! Just weathering now...

The masking tape is Tamiya's finest. Fingers crossed.

Eric Mc

122,174 posts

266 months

Friday 19th November 2010
quotequote all
I've left Tamiya tape on canopies for months - and it always comes off without difficulty or leaving any residue.

The Eduard pre-cut masks are of the same material and they work really well too.

perdu

4,884 posts

200 months

Friday 19th November 2010
quotequote all
good news then

and a point to remember stored in the old fuzzbox

smile


dr_gn

Original Poster:

16,189 posts

185 months

Friday 19th November 2010
quotequote all
perdu said:
good news then

and a point to remember stored in the old fuzzbox

smile
Perdu, you've clearly got modelling in your blood, you've got a stash of unbuilt kits, and you enjoy the build threads and models on here...I don't understand how you CAN'T have at least started a model again by now. I don't get it!

Come on man...this weekend make a start and post some pics! Everyone wins!

dr_gn

Original Poster:

16,189 posts

185 months

Friday 19th November 2010
quotequote all
Couple more final details.

Gun muzzle seal buckles:



(you didn't really think I'd leave them off did you Perdu hehe )

And the radiator flap indicators (brass rod):


Eric Mc

122,174 posts

266 months

Friday 19th November 2010
quotequote all
This is turning into a technical masterpiece. You can see why I stick to 1/72.

mattmoxon

5,026 posts

219 months

Friday 19th November 2010
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That is some incredible detail, can't wait to see the completed article biggrin

perdu

4,884 posts

200 months

Friday 19th November 2010
quotequote all
dr_gn said:
Couple more final details.

Gun muzzle seal buckles:



(you didn't really think I'd leave them off did you Perdu hehe )

And the radiator flap indicators (brass rod):

NOW you are modelling

Not leaving things off is what it's all about.

I remember discussing this with Alan Hall one day at the Birmingham IPMS Expo.

For me it all began from reading his conversions in Airfix Magazine.

I decided I could make in plastic conversions that Alan made with balsa and other materials (even plastic wood filler)

Eric Mc

122,174 posts

266 months

Saturday 20th November 2010
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His favourite balsa filler was cellilose dope mixed with talcum powder.