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BR 52 - Kriegsdampflokomotive 1 - 1:35 Kit


Blaubar

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so many images that just weren't around when I built mine. I'm really glad you posted an update. I'm wondering if there is anything left pf the Trumpeter kit other than the chassis? :D

Great stuff Stefan

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Simon,

There is quite a bit left (in the box :D haha) And I will cut apart the chassis for modifications in conjunction with the boiler support fixing later today.

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*1) Russian manual see sources above; Numbering: 1= BR 52 4181 2= BR 52 7596 3= BR 52 4830
Vs:

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The whole shape is wrong 

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The above design is for out the plate frame, my reference picture of Sinsheim is a bar frame, so the position of the support structure is further on the inside, this does not matter to us though. It just shows how the general shape should look like.

The smoke box support structure lost, it has been cut away. Now some holes need to be drilled into the "floor" panel (grey part) and I will also need to remove more frame side parts. Then a vertical cut to the rear of the support structure with a power saw will be needed, to separate the front section completely and then the whole thing will be rebuilt anew. (I hope this won't destroy the kit. I will try to dismount the cylinder support brackets and cut where they are located, as it will be invisible later and require less fixing^^ as I am a lazy man.

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I will reuse the top, which I had already modified, but will modify further, to adjust to the corrected radius of the smoke box.

The last stuff I had done back in JAN was general research and the analysis of the propaganda movie from 1943.

 

Targets were the frame, strange pipes, the driver's cabin and whatever I spotted in the (often before quoted) propaganda movie.

I was wondering about this pipe here in the front for some time, but to some extent, I have solved the riddle. It is only present on engines with the advanced frost protection (yellow crosses in the following pictures), however, not on all of them, as on some the pipe is below the boiler's belly! 

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red arrows showing the steam pipe vs no steam pipe and in the front they do point to the chimney cover (Only 100% sign of advanced frost protection)

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Also notice that when no advanced frost protection was present, the steam-feeding pipe towards the compressor sometimes went along the boiler's right side as indicated by a red arrow in the above picture... 

While the BR50 had 2 water level indicators, the 52 only had one on the left and some manual thing on the right-hand side... Also notive the 2x3 grease pumps in addition to the automatic Bosch grease pump discussed earlier.

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Notice the thin arrow to the very right... Trumpeter, Voyager and all have a hole on both frame support sides there, they did never exist, though only on the right-hand side were there sparrings, not on the left. 

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And in case you need to turn on the lights, here are the 4 switches, behind the 5 hand crank wheels to adjust the steam flow to various targets (next post):

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There is so much material to be found in that movie, it takes a long time to collect and prepare it all. Maybe it will be of use to someone in the future. First day off in weeks, so I will try and get the boiler support fixed.

Have a good one,

/Stefan

 

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Good evening together,

 

I redesigned the whole boiler support frame and drafted it on paper. I will use the top of the top part which I left intact and add the rest below. At first, I cut out wrong paper parts (with dimensions for the bar frame... The boiler support differs quite a bit between bar frame and plate frame and as such should not be mixed up as it won't fit into the frame).The frame of the bar frame is much lower around the boiler support than the same parts with plate frames.

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The frame is now separated in two parts. Too many things are off and I will rebuild most of the whole front from scratch and with quite major modifications.

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I am drawing and cutting the whole interior front parts as of now and within the next few days before the NC World Cup finale here, I might be able to get an update out. There will be quite a lot of moving and turning parts, as the spring system, which allows the frontal axle to move left/right, is quite crazy.

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After all, the new parts look like this:

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The basic steering rack to the right (need to cut that one again, as I used too thin plastic and it looks awful - compare the shape and the location of the sparrings of Trumpeter^^). Still lots to do, according to the manual some 90 pieces are still needed for the steering rack:swear: .

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It will kind of look like this in the end- mind however that the whole top and more intermediate layers need to be added:

33147445092_e2e97ed1df_c.jpg

 

Greetings from southern Germany

/Stefan

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As others have mentioned Stefan, I'm glad you've come back to continue this project. I'm in Orr of your scratch building it's fantastic, I built the BR 86 a couple of years ago now and really enjoyed it. I've been thinking about doing a BR 52 since seeing MH's build.

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Yeah, MHs loco turned out great indeed! As he was not counting robots, he was also faster and way more productive😂👍🏻👍🏻👍🏻.

I wish I was finished. The 86 is a nice one also....

/Stefan

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Now that the frame is cut, I started with the front design. I drew and cut out two .4mm sheets of styrene and then glued them on top of .4mm again. I roughly need about a .75mm thickness for the frame. (as stability will be an issue, I made it marginally thicker). These new parts are 8.5cm long and will fit 2.6cm in front of the centre of the first drive wheel axle. Why these measures? Because at 2.6cm in front the axle, the cylinder support frame will cover the cut in the frame and it is easier to hide the slashed stuff :D

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These are the 4 new basic frame parts. You will notice that the cylinder access holes are different in the boiler support and the frame. This is to save steel with the boiler support I assume and as such the hole is bigger here. The height is identical, it is just quite a bit wider.

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Holding the parts in place to have a look at the new design. I am fairly happy with the result. I need to prepare the frame to glue all these parts to it, however I need to fix the steering stuff first.

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I have then begun a minor assembly of the parts. They are glued with just a bit, so I can still rearrange it if needed, but all angles and alignments seem just right.

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The superheated steam will run through pipes here down into the cylinders and after usage, it will exit the cylinders through the lower gap in the frame into the smoke box...

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The view from the rear to the front. angles and rivets will get rid of the small gap between the frame and the boiler support (if any of it is left once I glue it in place in a few weeks or months)

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And this is what it will look like with the boiler... I need to trim the intermediate boiler support beams, as their shape is not adjusted to the boiler yet.

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That's probably it for the week. Have a great weekend all!

Prost,

/Stefan

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Simon, most of it will be safe and sound :idea:in the box of the spares parts^^ 

At least parts of the frame were used, as will be the driving gear.

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  • 3 weeks later...

Been a while...

After hosting the WorldCup Finale of the Nordic Combined, I finally had some modelling time last weekend and am able to read through some interwsting modelling blogs now. 

The front is coming together step by step. Managed to cut the frontal upper support structure. A comparison to the kit part shows some major differences and additions. The should look nice in the end and actually be noticeable.

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And the spring parts fit just perfectly, however they will be adjusted nonetheless.
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The upper front top without the springs (and some wrong lines and bad cuts which had to be fixed^^..

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The lower front part, many parts yet missing but it is coming together...

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I have done just a bit of the frame interior of the lower front on Sunday. Some sparrings for the leaf spring system and access holes for various parts had to be cut. The lower level horizontal support is at two different levels, the front part (longer one with the long hole) is slightly lower than the aft part (behind the vertical separator) The frontmost part yet had to be trimmed by 1mm along the pencil line.

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Lower frame view:

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And additionally new lower frame plating has been cut for the rear of the boiler support.

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There are so many holes and sparrings, no clue how to paint all this... Maybe I need to start priming and preparing it now before assembly, especially now that the drive shaft springs have been added below:

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It needs some trimming and sanding and the top got broken so needs to be done anew but it does help with the impression, even though it is not even aligned properly^^. Actually what is on top now, will later be the bottom side of it, the front is to the right. It does differe substantionally from the kit now.32884548393_6540226667_b.jpg

Seen from the top it will be about in this place below the whole frame.

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The single hole in the rear of the boiler support will be bolted to the centre of the leaf springs and it will be able to "swing freely" (it was anyway in the real engine). The spring connection rods are not perfectly aligned, they are bent a bit, so I will drill a different hole and align them again and thereafter I will cut the slag off the edges of the rods as they are yet too long.

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Still so much more to do, but at least some progress. Have a great Sunday all!

/Stefan

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Etienne,

they are Original 1:1 scale plans from the Russians which they designed/redid in 1950 for their Ty2 conversions.

Care must be taken as the 1200+ pages do differ between plate frame and bar frame designs and Ty2 modifications!

I thought I had posted the info before but must have forgotten it.

As such they are all 35times too large in terms of millimeters which they are depicting ;)

hth,

/Stefan 

Edited by Blaubar
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  • 1 month later...

Good evening together,

a few updates to the BR52 build.

 

This is the bolt that will connect the leading axle to the first powered axle. It is a 2mm rod, on top of which is a .8mm thick disc (2.5mm diameter) which I cut into a hexagon and on top of it is a tiny disc of 1.5mm in diameter. The side I am holding will be within a boxed casing attached to the first powered axle (from the front).
33782435796_a914456d7e_b.jpg 

The next step was an annoying part as much plastic had to be cut away at the bottom (second picture) then some plastic card had to be added to the top and then the sides had to be reshaped to come up for the curvature (the centre of the cross section was thinner than the outside - see my nasty drawings on the second picture). Also a few cuts were needed to cut away the recess where the rims of the vertical support join the horizontal support beams. (the four circles show this: on the bottom is the stock kit, on top is the modified version.)
33782437226_1ae52390c3_b.jpg 

Maybe this drawing helps to show what I am trying to explain... This also shows what had to be cut away at the bottom (blue markings). The kit part has the bottom enclosed, however, it is open with the real engine:
33782436826_dd1f28a1ff_b.jpg 
Compare the steering rack and additions:
DSCN4062(G).jpg 
1)

33667319992_e85d011e2e_b.jpg 
2)

Notice however that both shown driving racks are of different shapes and both are no original ones and do differ slightly! But they do help depict the general shape and problems.

The advanced and further modified steering rack laying on the boiler support.
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Just in the makeshift "dry fitting stage"
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In the meantime, I added the screw mechanism for the leaf spring pre-tension torsion bars.
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The top has been modified towards the front with the guiding support T-section in the front.
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Finally with wheels in place to have an alignment check. The top of the steering rack needs to be just below the second swing within the frame and slightly above the very bottom of the frame. If this is misaligned, the leading wheels will hang loose in the air and as such this is a difficult part as all parts need to be assembled and painted and then put together, and only then will I know if it worked (as all will be moving parts and I will not glue them) frown.gif
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If I screw it up, I will glue it down in the worst case^^

 

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And after some paint has been added. (My compressor arrived, I will spray it all with RAL 7021 later)
From below
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From above
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In the meantime I have also changed locations. I have set up a new mancave in the basement:

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What do you think?

Have a great Sunday night.

/Stefan

sources:
1) http://www.eisenbahnfreunde-zollernbahn.de/ 
2) https://www.dampflok526106.de/galerie/52-6106-im-jahr-2012/

 

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15 hours ago, Blaubar said:

34175901570_670bf2172c_b.jpg

 

Hello Stefan,

 

very nice bench !! Your project is taking shape, there will not be much left of the original kit but your's will practically be a true copy of the original, scale aside ;)

 

E

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Etienne,

I will have like some 500 spare parts left of the kit^^. It's a fun build, just taking a long time, like so many projects on here.

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3 hours ago, Ozzy said:

Nice going Stefan, I like your work bench very nice setup.

It's cold down there though, I need to fix the heater in the room. It was some solid 8 degrees Celsius tonight^^ I am constantly waxing skis there during the winter, not sure how I will do this next season...Maybe quit skiing? :idea:

 I need to cut apart the frame next. The lower sections are all wrong and need fixing. Other than the Waffentrager, the BR52 kit is really ***.

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I thought I'd add some info to this one for the history-interested modeller.

Actually, a few interesting shots and ideas... the winter stuff looks cool, not sure how the winter was in 1944/1945. The Waffentraeger were in Eberswalde from February-April until they got knocked out and/or captured. The guys in the pic below were for sure nowhere int he cold^^.

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*1) Bahn-Extra magzinehttp://bahn-extra.de discussion only

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*2)  discussion only, all original sources of the above and following pics turned out to be www.eisenbahnstiftung.de

As coal was rare and stock was dwindling, wood was used, here around Minsk.

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Frost and freezing protection, the SimonT way...(His latches are way cooler though)

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Interesting.... (As the Wehrmacht was lacking sheds in the East, many trains froze and as a result had fires lit underneath and around them, to make them work again. At times during 1942 and 1943, 80% of all engines in the East were not able to run, due to destroyed tracks, frozen tracks (lack of snow blowers and alike) and frozen tenders or smashed axles. Russian trains had bigger diameters in all injectors and grease box valves, thus they could run in colder weather, while German engines (pre-frost-prevention syste, carrying Br 52's) overheated often (the drive weheels and the axles, due to no grease getting there). In 1942 there werre less than 700 trains in the East, in 1943 more than 7000! mosth of them Br 52s 42s 50s and 57s.

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A mine blew up these cars:

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There are also photos for NON TRAIN MODELERS:

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  A very seldom coloured photo from 1941:

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and finally, my beloved train station at Leipzig, after it was hit with 46.2 tonnes bombs (I lived close to the station for quite some time a few years ago):

31257.jpg

Cheers,

Edited by Blaubar
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  • 2 weeks later...

No Loco update, but the first wagon that will be in the dio also is getting closer to completion. I got a second one for the foreground, I will detail the latter one, this one will be mostly OOB. I will keep this wagon with closed doors (as the interior has zero detail and sink marks, except for the floor) It was a 1.5hr build so far, so super fast and easy to build.

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Actually together with the Mercedes-Benz 170V (Reichsbahn version).

34906793821_7a76e6511b_b.jpg

Prost

 

Edited by Blaubar
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Nice box car Blaubar, a little tip that was passed onto me by Madhatter. Check the that the wheels fit the tracks, as dragon rolling stock is a different size to trumperter. So much for standardisation in the scale. Are you going to add anymore rolling stock?

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