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MOC: 7898 Cargo Train converted to Power Functions!


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#1 Goldenmasamune

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Posted 08 August 2010 - 01:01 AM

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I was extremely unhappy with the 7898 Cargo Train Deluxe. I wanted to give RC a chance, only to find that the RC motor couldn't even pull the whole set. I later found out that my motor wheels were part of a bad batch, but that is besides the point.

So, I decided to give power functions a shot. I purchased a rechargable battery pack, an extension cable, a IR sensor, and a power functions motor. I thought the modification would be easy since the train was already an RC train. I was wrong. After a very difficult time trying to make it all fit, and working with a smaller plate, i finally made everything work.

Here are the results of how I made it work.

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http://www.brickshel...638-resized.jpg

I wanted to keep it as true as possible to the original train. In the end I had to get rid of the rear driver seat to make room for the IR sensor. The top of it comes out right underneath the black thing. There is plenty of room for the remote to control the train still, and the sensor top is very discrete. The battery box fits right behind the driver. I used a dark bluish gray plate because i already had a 6x28 one available. A black one would have cost me 10 bucks and a week on bricklink. The original was a 6x30. I had to use 1x4 and 1x6 plates in order to extend the length. The roof of the driver, and the roof over the IR sensor both come off; the driver to remove him, and the IR sensor to change the channel. There is a PF extension cable that runs under the battery box and to the lights. All of the extra cable is stored under the IR sensor and in the hollow part of the rear of the engine. You turn the battery box on and off by pressing the little circle plate on the top of the train. I stole this idea from the 2010 cargo train.

http://www.brickshel...632-resized.jpg


This is a small layout I put up on my table. I am happy to learn that with a PF motor, the train engine easily pulls 10+ cars very fast. I haven't made a track big enough to really push the limits. It also moves faster than the new 2010 cargo train.


Here are added images of the modified boxcar. All I really did was toss it on a 6x24 plate and add wedge plates to lock in the pallets. all three pallets fit.

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#2 rday1982

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Posted 08 August 2010 - 01:31 AM

Nice mod. It'd be nice to see a youtube link... video of it in action.

#3 andythenorth

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Posted 08 August 2010 - 08:02 AM

Stick up a better picture of your mods to the red cargo van?  :classic:

Edited by andythenorth, 08 August 2010 - 08:03 AM.

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#4 vgsprites

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Posted 09 August 2010 - 05:24 AM

Nice work Goldenmasamune.

I like it with Bluish Grey Baseplate. :thumbup:
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#5 ZueriHB

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Posted 09 August 2010 - 11:48 AM

Nice Conversion there.

Say, do you use one or two PF-Motors?
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#6 Goldenmasamune

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Posted 09 August 2010 - 02:13 PM

View PostZueriHB, on 09 August 2010 - 11:48 AM, said:

Nice Conversion there.

Say, do you use one or two PF-Motors?

I only used one. Sadly, I had to make it a little off in order for the original wheelsets to work on the new plate. However, I plan on again stealing one of lego's designs and make a "Fake train motor" kind of like what is used on the 2010 cargo train. the fake train motor means the studs on the train wheels wont get in the way and I can make the tank under the train be a full 8 studs instead of seven.

Boxcar images are added to original post.

Edited by Goldenmasamune, 09 August 2010 - 02:13 PM.


#7 lightningtiger

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Posted 09 August 2010 - 02:20 PM

Very interesting MOD's to the 2007 cargo train 'Goldenmasamune' - PF croc train is faster than the new one.....very interesting !
Great work and keep on bricking 'Goldenmasamune' keep on bricking ! :sweet:

#8 aidovive

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Posted 20 June 2011 - 03:04 PM

Nice job! I'm also thinking of changing all of my trains to the new 2010 PF 9V motors.

Why did you change the black bricks to grey? The orginal set has black bricks.... Just wondering...
Thanks for your reply!

#9 Lego Man Can

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Posted 20 June 2011 - 04:26 PM

Wow that could be very useful, especially if you have one of the new PF trains!  :classic:

I wish  I could get hold of this train carriages... Can't find them anywhere...  :sad:
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#10 Piranha

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Posted 21 June 2011 - 12:26 AM

View PostLego Man Can, on 20 June 2011 - 04:26 PM, said:

I wish I could get hold of this train carriages... Can't find them anywhere... :sad:

You mean these?

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