Tug Forum

Specialist Types Of Tug Boat => Classic Diesel Tugs => : Gerhardvienna September 27, 2016, 06:41:37

: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna September 27, 2016, 06:41:37
Hi again
So here I start with the building report to my model of the tow-and anchor handling tug Bison. The ship was built in 1973, and is sailing now as "Sea Dianmond V" . The Bison was full overhauled in 2002, some changes were made, the mast is a bit different to the firs version, theboats were changed, and even the coluors are other than original.
I build the old version, as to see in the picture http://www.shipspotting.com/gallery/photo.php?lid=52748# .
The build started 3 years ago, some other projects took time, but I`m now about to do the last stages to colmplete this model. So the next posts will be reports from what I`ve done so far, until we can come to present.
I always start with some of the decks houses, first to make was the wheelhouse, and the cabin below. I used 1,5mm plywood for most of the houses, the instruments are lighted with SMD-LED`s.

Regards
Gerhard


 
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna September 27, 2016, 06:49:32
Here come the next pics of what I`ve done so long ago. All parts are made in my own shop, no "ready to assembly" stuff on this boat!

Regards
Gerhard
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna September 27, 2016, 08:44:28
Even the main winch and the small vertical is ready. Both have small electric motors built in, so they can be made working, if I want that.
Regards
Gerhard
to be continued....
: Re: Bison, 1973, Kremer Werft 1:50
: 2tugboats September 27, 2016, 09:40:49
Thank you for sharing your new build Gerhard. It's refreshing for me to learn a new
way of approaching my building. For example, your making the superstructure first
never occurred to me. And, your working winch is really nice. How can a builder get
one of them?

Keep the sharings coming, a pleasure to study them,
Michael
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna September 27, 2016, 10:24:48
Hi Michael

All I show at the moment is what I`ve done about 3 years ago. the newer stuff will come later, but there is a lot more of the older things to come.
The winches are just drawn out of the plan sheets, and built after that and some photos of similar winches from the internet. The motors came from an old outsorted toy for the main winch, and an old casette walkman for the vertical winch, both are 3 volt units. The side discs were turned on my lathe, and the ropes are from transport palettes. I could make those winches anytime, but would need more infos about the exact measures (METRIC!) or the type of winch. I`ve collected a lot of photos from all kinds of  main winches, including measurements and original drawings, all that helps me to build as close to the original thing as possible. But building one will take time, I dont like to build too fast!

Regards
Gerhard

PS.: more from the Bison will come!
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna September 27, 2016, 11:11:42
And the next pics from what was build so long ago..............
The first photo shows the inside of the cabin, with beds, table and seats
the second shows a general view of the superstructure in its first apperance. I had to change coluors, all yellow parts are repainted to white as the original parts was.
The last photo shows the cabin and wheelhouse, with the new white painted mast and boat cranes. The mast was soldered from 4 mm brass tube, took me some hours to bring it all into shape!

Regards
Gerhard


: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna September 28, 2016, 07:29:32
As there were some requests about the main winch, here come more photos from that build. I used some geared wheels from old toys, some pieces from plywood between 1,5 and 4mm, and a sheet of 0,5mm brass. The drums are made from ruond turned PVC and 1,5mm plywood. The axles are made from 3 mm Brass, some coils springs are used for the band break.
Sorry that I can only show 3 pics per post, so I will have to post that in parts.
Regards
Gerhard
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna September 28, 2016, 08:32:38
Most parts of the winch were painted in silk black, the last pic gives a view of the front side. This side will look to the stern when the winch is set to the deck.
Regards
Gerhard

PS.: At the moment I cannot show any photos, the server always kicks me out when I try!

: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna September 29, 2016, 00:26:11
Here come the next pics from the main winch, as I hope...
Did not work, do I have restriction to post only 1 pic at the post???
Regards
Gerhard
: Re: Bison, 1973, Kremer Werft 1:50
: 2tugboats October 01, 2016, 19:00:22
I don't know of any restrictions on the number of photos we can post, Gerhard. There have been
picture posting issues in the past. As soon as the administrator is aware of the problem, he has
resolved the malfunction. Personally, I don't want anything to interfere with your posting valuable
illustrations of, for example, how you designed and made an impressive working winch from found
objects for our tugboats; . . .priceless.

I have never had a problem posting pictures, lucky me. A few times in the past, others have
experienced nightmares trying to post pictures. Does anyone here on the Forum know if there
were just mistakes to posting or if there was something wrong with the "operation program".

I'll write the administrator and report your problem Gerhard, don't give up - please.

Michael
: Re: Bison, 1973, Kremer Werft 1:50
: 2tugboats October 01, 2016, 19:11:05
In February of 2015, Des wrote this information about trouble posting to Fastfaz.

Posting of photos is one of the issues that the TugMaster has been working on, and
seems to have fixed for most of us.  If you are still having issues you can email him
with the details to get it fixed.  But before doing so, check a couple of things yourself first -

Try inserting the photo file directly into your post from your computer - don't make things
more complicated than they need to be by using "PhotoBucket" or similar on-line services.

If you get a security warning, you may need to re-size your photo.  Copy the photo file into
Paint (or similar) and "SaveAs" with a smaller file size.  I have found that this usually works
for me.

Finally, for future photo posts, you may find it easier to set your camera resolution to
a lower setting.

Des.
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna October 01, 2016, 22:49:24
..........................don't give up - please.
Michael

I NEVER will!!
But I had to convert all the pics to a bit smaller, so i hope it will work fine now. And then there was a lot of thinking how to drive this ship, fuelers will not be allowed at "my" pond, and normal electric motors would not have the sound I want.  I found something,  we`ll see in the future if that works.
So next things to make was the frames and hull, I always build a common plank on frame hull. The frames were made from 4 mm plywood, the planks are cut from 2 mm balsa wood. The stern is made from horizontal built in plywood frames, and grinded to shape.

Regards
Gerhard

: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna October 04, 2016, 04:03:09
Next to complete the hull was the front. I used for the front end plywood as I did at the stern, cut single frames and glued them to the keel. After all frames were set into place, I grinded all to final shape.

Regards
Gerhard
: Re: Bison, 1973, Kremer Werft 1:50
: 2tugboats October 04, 2016, 17:50:06
Good pictures Gerhard. It is with pleasure as I check them out. I have built 5 tugboats,
that I roughly" put together like you have. The pleasure part for me is to see how you
didn't skimp on the frame supports. Your hull won't "potato chip" on you. And I have
ground, sanded, filed, and sanded many bows and sterns and so it was nice to see your
work and I didn't have to do it. Very nice workmanship.

Thank you for sharing and handing out inspiration here on the Forum Gerhard,
Michael

Here is what can happen when the frames are not secure prior to planking your hull.
(http://nebula.wsimg.com/b418bdcb2af6b98a30db7bccae7cf5ff?AccessKeyId=19B7CB1A42738C551DAB&disposition=0&alloworigin=1)
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna October 05, 2016, 00:57:25
Here is what can happen when the frames are not secure prior to planking your hull.

Hi Michael

That really hurts!!
And that`s the reason why I always complete the hull first, and then cut the stands away. After planking the hull was fillered with filler paste, then I laminated the hull with two layers of fibre and epoxy. You can see the green/white filler can in the background at the first pic. After filling all was sanded to a smooth surface. The frames extensions are still all here at this stage.

Regards
Gerhard



: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna October 06, 2016, 09:42:53
Hi again

After buildung the hull, i made the towing hook. It is working, the thread at the stand will be connected to a small servo that will move the hook.

Regards
Gerhard
: Re: Bison, 1973, Kremer Werft 1:50
: 2tugboats October 08, 2016, 08:14:22
Very nice and interesting work, Gerhard. I like the mention of the "small servo".

Michael
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna October 08, 2016, 08:57:56
Very nice and interesting work, Gerhard. I like the mention of the "small servo".

Michael

Hi Michael

It wont use a big one to move that small hook.
Next to do were the kort nozzles and their holders. The holders are simply soldered items, more work was to do for the nozzles. I used 1 mm balsa wood stripes, bend that around a small plastic can with a large amount of glue and let that dry over night. The next day the raw nozzles were taken from the cans and turned to shape. A lathe is a big helper for that!
After grinding the nozzles were fillered and smoothened.
here come the first pics.
The first shows the nozzle bend around the can, the second the raw form of the nozzle, and the third pic shows one grinded and fillered nozzle.

Regards Gerhard
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna October 08, 2016, 10:43:01
The next photos..
The first shows one of the nozzles with the holding core, the next shows one kort nozzle with the holding parts, and th last photo give a good look at the finished korts.

Regards
Gerhard
: Re: Bison, 1973, Kremer Werft 1:50
: sea monkey October 08, 2016, 14:37:55
Nice work on the nozzles, good thinking.
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna October 09, 2016, 00:59:54
Hi sea monkey

Thank you! The nozzles were dernched with epoxy and laminated after they were ready, so they are absolute waterproof!
Next to make were the props, I used brass sheet and different brass parts for them. The blades were cut out from 1 mm sheet metal, all other parts tunred on the lathe, see the potos.

Regards Gerhard
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna October 09, 2016, 03:06:41
The props, part II
First photo: One of the props, blades not bend
Second photo: Blades bend
Third photo: Both props mounted
They fit well into the korts and turn free.

Regards
Gerhard
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna October 13, 2016, 04:09:07
Another thing to do were the rudders, the BISON has Becker - Flaps for steering. The blades are made from Brass, covered with balsa wood and laminated twice, the flaps are working well.

Regards
Gerhard
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna October 14, 2016, 10:50:13
Hi again

To make a long story short, here comes one photo from the Bison how it appears today. There is still a lot to do, as you can see. I studied a long time what engines I should use for this model, common electric motors will not make the noise I wanted, and IC-Engines are prohibited on "my" pond. After a long extended searching time I found what I was looking for. The Bison will have two solenoid inline 8 cylinder engines. This engines produce the sound I would like to have for the tug! More about that will come soon.

Regards
Gerhard
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna October 20, 2016, 02:24:49
As I mentioned above, the Bison will get solenoid engines. This motors are not available by any customer, so I will have to make my own items. The engines will have a similar look to the original units, not the same but very close. The first photo shows a drawing of the motor as it was built for the Bison. The second photo shows the 3D construction as a lines drawing, and the third shows the completed engine as a 3D model. The case will be 3D printed, all other parts will be my own home production, including the solenoids. The engines have 24mm stroke, the solenoids have 6mm dia. pistons. More about the engines in next post!

Regards
Gerhard
 
: Re: Bison, 1973, Kremer Werft 1:50
: sea monkey October 20, 2016, 10:37:59
Wow, that is dedication!
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna October 21, 2016, 01:59:25
Hi Steve

Took me 2 Months before I was ready with this drawings. Lots of hours, and several different versions of that motor were to plan, until I felt comfortable with it. The reason why I want such an engine is simple: All the other guys have sound generators built in, but most of them do not have the sound I wanted. When I listen to a solenoid engine, THAT is sound, even in smallest versions!
https://www.youtube.com/watch?v=voBZP6AUOx4

Regards
Gerhard
 
: Re: Bison, 1973, Kremer Werft 1:50
: 2tugboats November 14, 2016, 22:52:45
Thank you for sharing the "solenoid engine". I learn something new here on the Forum
on a regular basis. You are right Gerhard. . .it does sound like the motor it is. I like it-

Let us know what you come up with, it's very interesting for sure.

Michael
: Re: Bison, 1973, Kremer Werft 1:50
: model tugman November 14, 2016, 23:57:37
Yes I am finding this very interesting, will the engine actually drive the tug?
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna November 15, 2016, 01:13:48
Hi Michael & Model Tugman

It will take a lot of time until the solenoid engine is working as good as I want it. And I will have to wait for next spring before I can start with the real work on that engines, then I will have my 3D-Printer for all the engine cases. There will be two of that engines, one for each prop to make the driving system close to original, both will be reversable with either gearbox or by arduino engine management. The arduino program is in development by a forum friend in another forum. He will drive a sidewheeler with such an engine! As i meant that all will take some time to make, I will keep all of you informed about done progress! At the time I`m doing the next drawings for the bow thruster case and prop, even they will be 3D printed!

Regards
Gerhard
PS.: Hope that there is no one affected by the NZ quake!!!
: Re: Bison, 1973, Kremer Werft 1:50
: sea monkey November 15, 2016, 11:48:13
PS.: Hope that there is no one affected by the NZ quake!!!

There was a radio item about a man in Seddon (not far from the epicentre) who had his model boat collection destroyed. Don't know who it is but I can imagine how he feels.
Although, during the quake my model boats were the last thing on my mind.
Steve
: Re: Bison, 1973, Kremer Werft 1:50
: sea monkey November 15, 2016, 11:48:46
PS.: Hope that there is no one affected by the NZ quake!!!

: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna November 15, 2016, 11:57:32
Although, during the quake my model boats were the last thing on my mind.
Steve

Hi Steve

If it`s "only" the model boats, bad but not life threatening. The most important still is life itself, as I expect it. We had no strong quakes in austria, but if I look over the border, Italy is no so far away! And from the bad news I had to see from there I`m a bit concerned that quakes can happen anytime and anywhere....
Good to hear you and your beloved are allright at the time! Our prayers should go to all the lost lifes and their relatives!

Regards
Gerhard
: Re: Bison, 1973, Kremer Werft 1:50
: CAJ December 27, 2017, 06:09:38
Where did you get the plans?
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna December 27, 2017, 07:54:37
Hi CAJ

The plans came from the VTH publishing company, here is the linc
http://shop.vth.de/url-key-327/schiffsmodelle/schlepper/bison.html
The plans are well drawn, but the color scheme is not the original one.
My build is coloured in the original scheme, but still not finished. But the ship will be completed in spring or summer next year, I must see her on the water!

Best regards
Gerhard
: Re: Bison, 1973, Kremer Werft 1:50
: Gerhardvienna December 27, 2017, 07:58:34
To show the correct color scheme, her is the only photo I foud in years in the internet