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Converting Walthers 90' Turntable (Installation)
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Offline Martin T  
#51 Posted : 07 February 2006 17:29:11(UTC)
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Martin T

Sweden   
Joined: 02/01/2006(UTC)
Posts: 878
Location: Stockholm, Sweden
Wounderful Pierre! You are working on a detail level, to which I've never even been close.

It is very much inspiring to see the progress of your work. So much, I've ordered a kit like this to make the same conversion. I will really do my outmost to put the effort into the details this time.
Regards / Martin T
Click your way over to me in Marbrodal in Sweden: http://www.xn--mrklintg-0zaq.se/index_e.html
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Offline PierreGILLARD  
#52 Posted : 11 February 2006 22:33:22(UTC)
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PierreGILLARD


Joined: 09/11/2004(UTC)
Posts: 2,346
Location: Longueuil, Quebec
Hello !

I completed the pit by laying a mix of ballasts from Woodland Scenics :

B72 Fine Brown
B75 Fine Grey
B78 Medium Brown
B82 Medium Grey
B1376 Fine Cinders

The ballast was glued with the usual technique and Woodland Scenics "Scenic Cement" S191.

Here is the result :

UserPostedImage
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Offline PierreGILLARD  
#53 Posted : 11 February 2006 22:48:26(UTC)
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PierreGILLARD


Joined: 09/11/2004(UTC)
Posts: 2,346
Location: Longueuil, Quebec
The first phase of this conversion project is now completed !

UserPostedImage

I now have to wait for the building of my layout to start the second phase which will consists in connecting the turntable with the K-Tracks, trimming the bridge's rail ends, completing the connections and closing the motor and driving wheel housing under the pit. This would probably not occur prior next autumn.

To date, this project has cost me exactly CDN$ 88.97 (about Euros 60.00) including ballast but excluding paint, Humbrol and CA glues.

It took me about 30 hours or work to achieve this conversion to date.

Here are some further pictures with my UP PA-1 on the bridge :

UserPostedImage

UserPostedImage

UserPostedImage

UserPostedImage

UserPostedImage

The turntable motor electric power cable can be seen on the last picture. It goes from the top of the power arch to the junction box that I added under the deck as described in a previous report.

Pierre.
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Offline franciscohg  
#54 Posted : 12 February 2006 00:51:59(UTC)
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franciscohg

Chile   
Joined: 10/07/2002(UTC)
Posts: 3,298
Location: Patagonia
Just great Pierre!!!!
Congratulations!!!!!
UserPostedImage German trains era I-II and selected III, era depends on the mood, mostly Maerklin but i can be heretic if needed XD, heresy is no longer an issue.. LOL
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Offline Webmaster  
#55 Posted : 12 February 2006 02:45:33(UTC)
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Webmaster


Joined: 25/07/2001(UTC)
Posts: 11,165
Excellent, Pierre!!!
Juhan - "Webmaster", at your service...
He who asks a question is a fool for five minutes. He who does not ask a question remains a fool forever. [Old Chinese Proverb]
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Offline ulf999  
#56 Posted : 12 February 2006 10:14:55(UTC)
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ulf999


Joined: 12/05/2005(UTC)
Posts: 1,908
Location: Stockholm, Sweden
Well done! Very inspiring!!!
Ulf, American HO. www.goldenvalleyroute.com/
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Offline steventrain  
#57 Posted : 12 February 2006 11:32:42(UTC)
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steventrain

United Kingdom   
Joined: 21/10/2004(UTC)
Posts: 31,697
Location: United Kingdom
Congratulations,Great work.
Large Marklinist 3- Rails Layout with CS2/MS2/Boosters/C-track/favorites Electric class E03/BR103, E18/E118, E94, Crocodiles/Steam BR01, BR03, BR05, BR23, BR44, BR50, Big Boy.
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Offline PierreGILLARD  
#58 Posted : 13 February 2006 02:57:15(UTC)
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PierreGILLARD


Joined: 09/11/2004(UTC)
Posts: 2,346
Location: Longueuil, Quebec
Quote:
[size=1" face="Verdana" id="quote]quote:Originally posted by Martin T
<br />Wounderful Pierre! You are working on a detail level, to which I've never even been close.

It is very much inspiring to see the progress of your work. So much, I've ordered a kit like this to make the same conversion. I will really do my outmost to put the effort into the details this time.


Thanks Martin.

I have to admit that I lacked of inpiration when I decided to put ballast into the pit. I tried to find pictures of turntables on Internet and I just found one fitted with nice clean grey gravel in a museum in the USA. All the other-ones had their bottom made of mud, swamp, vegetation, ... but nothing like gravel exposed to the elements for years. So I tried that mix. I hope now that it is convincing !

I would be happy to see your own convertion, so please post pictures of your work.

If you need further information, feel free to send me an e-mail.

Have fun now as I had !

Pierre.
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Offline PierreGILLARD  
#59 Posted : 13 February 2006 02:58:48(UTC)
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PierreGILLARD


Joined: 09/11/2004(UTC)
Posts: 2,346
Location: Longueuil, Quebec
Thanks for your support my friends.

Pierre.
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Offline laalves  
#60 Posted : 13 February 2006 03:47:15(UTC)
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laalves


Joined: 10/02/2004(UTC)
Posts: 2,162
Location: Portugal
Well, congratulations on another very realistic and highly convincing piece of modelling work! indeed quite inspiring!

Luis
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Offline foumaro  
#61 Posted : 13 February 2006 09:44:07(UTC)
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foumaro

Greece   
Joined: 08/12/2004(UTC)
Posts: 4,430
Location: Attiki Athens Greece
Great job.Congratulations.biggrinbiggrin
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Offline Gustavo Villa  
#62 Posted : 13 February 2006 13:30:13(UTC)
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Gustavo Villa

Chile   
Joined: 17/07/2005(UTC)
Posts: 260
Location: Viña del Mar, Chile
[:0][:0][:0][:0][:0][:0][:0][:0][:0][:0][:0]

Great job.


Are you using kadee? Don't you have troubles with turnout pukos?
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Offline john black  
#63 Posted : 14 February 2006 10:47:39(UTC)
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john black

United States   
Joined: 22/04/2004(UTC)
Posts: 12,139
Location: New York, NY
Unbelievable - excellent job [:p][:p][:p] !!!

Congratulations, Pierre !!!
John
I hope no one visits a poor Southener's layout in Brooklyn. Intruders beware of Gators.
AT&SF, D&RGW, T&P, SP, WP, UP, BN, NYC, ARR, epI-III - analog & digital Marklin Classics only.
CU#6021 FX-MOTOROLA DIGITAL SYSTEM. Fast as lightning and no trouble. What else ...
Outlaw Member of BIG JUHAN's OUTSIDER CLUB. With the most members, worldwide
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Offline PierreGILLARD  
#64 Posted : 15 February 2006 23:36:22(UTC)
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PierreGILLARD


Joined: 09/11/2004(UTC)
Posts: 2,346
Location: Longueuil, Quebec
Thanks !

I hope to add more details about the conversion on my website soon.

Pierre.
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Offline orubias  
#65 Posted : 16 February 2006 00:49:03(UTC)
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orubias

Spain   
Joined: 30/11/2004(UTC)
Posts: 690
Location: Justo ahí
That´s a great job! Nice wathering.
Band on the run
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Offline Guus  
#66 Posted : 16 February 2006 14:08:39(UTC)
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Guus

Netherlands   
Joined: 13/10/2004(UTC)
Posts: 2,616
Hi Pierre,

I looks very realistic.
Absolutely beautiful [:p]

Kind regards
Guus
Kind regards,
Guus
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Offline Martin T  
#67 Posted : 03 March 2006 00:28:20(UTC)
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Martin T

Sweden   
Joined: 02/01/2006(UTC)
Posts: 878
Location: Stockholm, Sweden
Hello Pierre! I'm proud to announce that I now (almost) have completed the same conversion. I want to thank you again for this inspiring thread you have made in this forum about this conversion!

I followed almost exactly your conversion, but with three differences;

1. I kept the bracing in the bridge structure and instead cut a slot straight through it. The slot was made with a miniature drilling machine mounted on a coordinate table. The slot was cut to the same width as the centerrail of the 5106. After mounting the two centerrails I added glue and used the bracing as support for the centerrail.

2. I had to go up in size of the rails used on the brigde deck to Roco code 100 flexitrack. Otherwise the brigde track got too low to mate with my M-rail (5000-series) Märklin tracks.

3. I didn't mount the power arch, since I will not have any power lines on my layout.

I'll still have some remaining paint job in the pit, but otherwise very happy with this turntable. It's my first, so you can understand my happiness!

I didn't want to attach photos of my conversion in "your canvas" here, but have published a few on my website: http://web.telia.com/~u87724996...rail/m5000/mrail_mod.htm

Thank you and keep up with the good railroad work all over the world!

Regards / Martin in Sweden
Regards / Martin T
Click your way over to me in Marbrodal in Sweden: http://www.xn--mrklintg-0zaq.se/index_e.html
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Offline PierreGILLARD  
#68 Posted : 03 March 2006 02:00:32(UTC)
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PierreGILLARD


Joined: 09/11/2004(UTC)
Posts: 2,346
Location: Longueuil, Quebec
Quote:
[size=1" face="Verdana" id="quote]quote:Originally posted by Martin T
<br />Hello Pierre! I'm proud to announce that I now (almost) have completed the same conversion. I want to thank you again for this inspiring thread you have made in this forum about this conversion!

I followed almost exactly your conversion, but with three differences;

1. I kept the bracing in the bridge structure and instead cut a slot straight through it. The slot was made with a miniature drilling machine mounted on a coordinate table. The slot was cut to the same width as the centerrail of the 5106. After mounting the two centerrails I added glue and used the bracing as support for the centerrail.

2. I had to go up in size of the rails used on the brigde deck to Roco code 100 flexitrack. Otherwise the brigde track got too low to mate with my M-rail (5000-series) Märklin tracks.

3. I didn't mount the power arch, since I will not have any power lines on my layout.

I'll still have some remaining paint job in the pit, but otherwise very happy with this turntable. It's my first, so you can understand my happiness!

I didn't want to attach photos of my conversion in "your canvas" here, but have published a few on my website: http://web.telia.com/~u87724996...rail/m5000/mrail_mod.htm

Thank you and keep up with the good railroad work all over the world!

Regards / Martin in Sweden


Superb job ! Congratulations. I really like your concrete weathering of the pit.

Congratulations for your really nice website as well; it looks very professional.

BTW, it is not "my canvas" ... Feel free to post pictures here if you wish !

What will be your next project ? From my side, I am currently working on Walthers Cornerstore Concrete Coaling Tower # 933-3042 ( http://www.walthers.com/exec/productinfo/933-3042 ).

Pierre.
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Offline pat  
#69 Posted : 03 March 2006 02:15:38(UTC)
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pat


Joined: 06/01/2004(UTC)
Posts: 913
Location: The Central Coast
Pierre,wowbiggringreat work[:p]
worse things happen at sea
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Offline HueyCE  
#70 Posted : 03 March 2006 03:23:27(UTC)
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HueyCE


Joined: 12/01/2003(UTC)
Posts: 2,528
Location: Groton, Connecticut
Nice work both of you.
Ira
Building German Era I-II layout(Mk IIIc).UserPostedImage
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Offline Sander van Wijk  
#71 Posted : 03 March 2006 14:50:42(UTC)
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Sander van Wijk

Netherlands   
Joined: 20/04/2003(UTC)
Posts: 2,248
Location: Amsterdam, Netherlands; Göteborg, Sverige,
Very impressive, the work both of you did! How are you planning to operate the turntable?
Sander
---
Era I(b): K.Bay.Sts.B. and K.W.St.E.
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Offline Martin T  
#72 Posted : 03 March 2006 15:57:49(UTC)
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Martin T

Sweden   
Joined: 02/01/2006(UTC)
Posts: 878
Location: Stockholm, Sweden
Hi! Martin here... Walthers are offering a geared motor which fit the kit. Construction looks good, so I think only need to build a voltage regulator to get the right speed on the movement. However, I haven't got the motor yet, so I have not been able to try it out.

I will manouver the turntable with a simple 3-position toggle switch. I was thinking of adding a PCB inside the turntable, which would make the stopping automatic, but I hesitate now. I think that manually operated turntable is the way to go anyway.
Regards / Martin T
Click your way over to me in Marbrodal in Sweden: http://www.xn--mrklintg-0zaq.se/index_e.html
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Offline PierreGILLARD  
#73 Posted : 04 March 2006 17:05:49(UTC)
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PierreGILLARD


Joined: 09/11/2004(UTC)
Posts: 2,346
Location: Longueuil, Quebec
Quote:
[size=1" face="Verdana" id="quote]quote:Originally posted by Martin T
<br />Hi! Martin here... Walthers are offering a geared motor which fit the kit. Construction looks good, so I think only need to build a voltage regulator to get the right speed on the movement. However, I haven't got the motor yet, so I have not been able to try it out.

I will manouver the turntable with a simple 3-position toggle switch. I was thinking of adding a PCB inside the turntable, which would make the stopping automatic, but I hesitate now. I think that manually operated turntable is the way to go anyway.


I will do just like Martin : a DPDT three-position toggle switch to control the Walthers 12VDC motor. I will perhaps add a serie resistor with a parallel mounted by-pass SPST switch to control speed if required. Will see when installing the turntable in the layout.

Thanks to all for your support.

Pierre.
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Offline Santi  
#74 Posted : 04 March 2006 22:14:30(UTC)
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Santi


Joined: 09/12/2004(UTC)
Posts: 45
Location: Spain
Hi Pierre:

You are an artist! Both technically and, let's say, in the artist way.

Congratulations for your superb work.

Santi
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Offline PierreGILLARD  
#75 Posted : 06 March 2006 02:02:58(UTC)
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PierreGILLARD


Joined: 09/11/2004(UTC)
Posts: 2,346
Location: Longueuil, Quebec
I have added a French description of this conversion on my website for our French speaking friends :

Les amis de langue française pourront trouver une description de la conversion en français sur mon site :

http://www.pierregillard...n/projets/u01/index.html

Pierre.

PS : Thanks for your compliment, Santi.
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Offline Martin T  
#76 Posted : 07 March 2006 15:41:43(UTC)
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Martin T

Sweden   
Joined: 02/01/2006(UTC)
Posts: 878
Location: Stockholm, Sweden
Cleaning of contact surfaces required
It's important to clean the brass conductor rings + spring contacts blades after installation with Isopropanol, or Aceton. Otherwise contact is poor and gives intermittent voltage drops when turning the table.

Anti-rotation properties w/o installed motor
The table is very easy to turn before the motor is installed. So easy, it gets out of position when the loco enter and exit. How are these properties with motor installed Pierre?
Regards / Martin T
Click your way over to me in Marbrodal in Sweden: http://www.xn--mrklintg-0zaq.se/index_e.html
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Offline steventrain  
#77 Posted : 07 March 2006 21:11:14(UTC)
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steventrain

United Kingdom   
Joined: 21/10/2004(UTC)
Posts: 31,697
Location: United Kingdom
Excellent link.Smile
Large Marklinist 3- Rails Layout with CS2/MS2/Boosters/C-track/favorites Electric class E03/BR103, E18/E118, E94, Crocodiles/Steam BR01, BR03, BR05, BR23, BR44, BR50, Big Boy.
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Offline PierreGILLARD  
#78 Posted : 11 March 2006 00:29:30(UTC)
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PierreGILLARD


Joined: 09/11/2004(UTC)
Posts: 2,346
Location: Longueuil, Quebec
Quote:
[size=1" face="Verdana" id="quote]quote:Originally posted by Martin T
<br />Cleaning of contact surfaces required
It's important to clean the brass conductor rings + spring contacts blades after installation with Isopropanol, or Aceton. Otherwise contact is poor and gives intermittent voltage drops when turning the table.

Anti-rotation properties w/o installed motor
The table is very easy to turn before the motor is installed. So easy, it gets out of position when the loco enter and exit. How are these properties with motor installed Pierre?


Unfortunately, I am not so far advanced. Adding motor and drive mechanism will take place only when I will build my layout module ... let's say next October to the best.

But I think that with the important demultiplication between the large bridge drive gear and the small motor gear, there will be no problem.

Thanks for the contact advise. It is my time now to be inspired by your work, Martin !

Another option for the contact was proposed earlier in this topic by Jonquinn.

Pierre.
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Offline Rowan  
#79 Posted : 26 June 2006 09:18:57(UTC)
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Rowan


Joined: 09/04/2006(UTC)
Posts: 1,278
Location: Brisbane, Queensland
Giday.The builders of the turntables might find an article in this months * RAILROAD MODEL CRAFTSMAN ,April 2006 of some interest.
Scratchbuilding a quarry turntable,by Trevor Marshall

There is a sub article by Chris Abbot,Creating a turntable mechanism.
This is a really great magazine and it might have some ideas that the turntable modeller might find of interest.
Of course on the other hand Martin T and Pierre GILLARD might want to post a link to the Märklin Users site ..... "this is how ya build a turntable mate!!!!!!!!"
*
The canoe and horse drawn Zepplin make for slow delievery.wink
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Offline PierreGILLARD  
#80 Posted : 29 October 2006 01:28:39(UTC)
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PierreGILLARD


Joined: 09/11/2004(UTC)
Posts: 2,346
Location: Longueuil, Quebec
Again on my turntable ...

I have read several reports about the reliability of the Walthers turntable brass rings and wipers contact system. So I decided to keep the system as simple as possible ... even that it cannot be simpler !

As a matter of fact, I drilled a small hole at the extremity of the bridge axle in order to let both rail power wires going through it. I soldered two 40-50 cm multibraid AWG 22 wires at their end.

The idea is then that the wires will simply twist when the bridge will turn. Statistically, the number of clockwise revolutions should equal the number of counterclockwise revolutions. Anyway, if the two wires should be once to much twisted, it just requires to disconnect both wires under the table, untwist and reconnect them.

UserPostedImage

At the same time, I have installed Walthers # 933-1050 motor in the gear housing. Both wires are maintained by masking tape. I also added a protecting sleeve around the wires at the housing slot level.

A hole has been drilled in order to allow rail power wires going outside.

UserPostedImage

Pierre.
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Offline intruder  
#81 Posted : 29 October 2006 02:56:38(UTC)
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intruder

Norway   
Joined: 16/08/2006(UTC)
Posts: 5,382
Location: Akershus, Norway
Pierre and Martin,

I certainly envy you people with such a patient and skills in this detailed work. Really nice!
Best regards Svein, Norway
grumpy old sod
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Offline PierreGILLARD  
#82 Posted : 19 November 2006 01:17:55(UTC)
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PierreGILLARD


Joined: 09/11/2004(UTC)
Posts: 2,346
Location: Longueuil, Quebec
Thanks Svein ! Smile

The turntable is almost completed now !

The geared wheel was glued on the bridge axle. Even if not used as contact, I have however glued both brass tubes on the axle as well :

UserPostedImage

Then the gear housing was screwed :

UserPostedImage

A remote control was assembled with :

1. A LED to check presence of 12 VDC power for the turntable motor.
2. A "CW"/"CCW" intermittent switch (DPDT, ON-OFF-ON).
3. A "HI/LO" turntable speed switch.

UserPostedImage

A test is then conducted with my NYC Alco PA-1 ... and it is a SUCCESS ! :

UserPostedImage

UserPostedImage

Nevertheless, with a 12 VDC power supply, the motor turns too fast for a precise adjustment of the bridge. So, I reduced the voltage and found that it could be fine with 6 VDC.

In order to get the two turntable speeds, I will now add a 120 ohm/1 W serial resistor inside the remote that will be by-passed by the "HI/LO" switch in "HI" position (current is about 50 mA under 6 VDC).

So I am really happy and pleased with this conversion as I progressively reach the final steps. Cool

Pierre.
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