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October 20, 2018, 09:52:51 PM
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Author Topic: new scratch building project  (Read 14673 times)
Joe Satnik


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« Reply #30 on: September 29, 2014, 12:25:54 PM »

Dear Tanker,

If you only need to drop a few volts, the Dallee Diode bridge circuit with extra diodes works well:

http://www.dallee.com/PDFs/MotorDiodeDrop.pdf

It wouldn't be as efficient as a chopped output voltage reducer, but those are electrically pretty noisy.

About your small voltage motor:

Power = Volts x Amps.

If you have a smaller voltage motor, it will have to draw larger amps to do the same work, thus overloading the RX board. 

Adding weight will draw more amps, making the overload problem worse.

Hope this helps. 

Sincerely,

Joe Satnik
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If your loco is too heavy to lift, you'd better be able to ride in, on or behind it.
uscgtanker


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« Reply #31 on: October 24, 2014, 11:39:21 AM »

well since this is a electric locomotive the sound will add to the appeal. On the job list for this weekend is pulling out North Shore 761 with L-8. I will try to get some videos of L-8 in action. I will probably be operating D-23 also a TM car. One thing that I have been building is a South Shore steel interurban number not yet decided. It is painted up in our dinner train colors WW2 extension to 80', the # that we have for that design are #23, #24 and #25. a separate car that will be add is car #107 combine.

Thanks for the help
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uscgtanker


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« Reply #32 on: October 26, 2014, 01:19:10 PM »

Was working with D-23 cleaning out the barn, moved North Shore 761. Here is a video i just post you tube of L-8 working in the yard.
https://www.youtube.com/watch?v=9gxA06meiGM&list=UUZydqjJ880E6RgFB0p1YC1w
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uscgtanker


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« Reply #33 on: December 04, 2015, 12:07:07 AM »

It's been some time since I posted something on this post but I have made some progress on L-8. After adding weight to the engine to have very little effect before making a bow in the plastic frame. I started building a metal frame in my metal shop class, the deck floor made from 14ga sheet steel and members of 16ga will make up the body. I was able to find 12-18 volt motors of off ebay that fit really nice between the wheels. Working directly off my first model and the original loco is makeing this job faster then before. however I am making some improvement from my first model. 
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uscgtanker


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« Reply #34 on: December 16, 2015, 12:12:50 PM »

As promised from my last post I have photos to share of my upgrade model of L-8. also I have photos of the original engine and her sister L-9 also at east troy. enjoy

http://s1288.photobucket.com/user/uscgtanker/library/?view=recent&page=1
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on30gn15


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« Reply #35 on: December 21, 2015, 07:40:24 PM »

Did enjoy  Smiley Electric traction, cool stuff.
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When all esle fials, go run trains
Screw the Rivets, I'm building for Atmosphere!
later, Forrest
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