HOW TO BUILD YOUR OWN RC LOCO KIT: A GUIDE

BATTERY LOCOS (DC)

Battery DC Guide
Live Steam Guide
Diagram of an AAA battery pack with 10 
			cells. Number One wiring loom with
charging socket and mini toggle switch. The Cobra high frequency electronic speed controller, next to a coin for 
			scale. JST Motor plug wire and sleeves.

Battery

Switch Loom

Speed Controller

Motor Connection

Rx-2 H receiver for use with the OMNI Tx-2.0 and Tx-2.1 train 
			transmitters. SND-700. MLS Universal Steam Sound card 6 to 24 volts. 
			Five auxiliary sounds.

Receiver

Sound

OMNI-2.1. The Tx-2.1 hand size 2.4GHz transmitter with Forward-Reverse and inertia control, 
			plus 3 function buttons.

Transmitter

Lights

Battery

Voltage: Choose the voltage to suit your motor. For example, if your motor is a 12V efficient/coreless motor, choose a 12V battery pack, or, for a standard motor, choose a 14.4V battery pack. If your motor is a 6V standard motor, choose a 7.2V battery pack.

Cell Size: We sell battery packs made from AAA, AA, and Sub-C cells.

Cell Configuration: We can create custom battery packs of any configuration for you, depending on the size and shape of your loco.

All the battery packs we supply come fitted with a fast blow fuse as standard.


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Switch Loom

Fosworks supplies a choice of three standard switch looms, each including a switch and a charging socket. The only difference is the type of switch used in the loom. The types available are a mini toggle switch (PNP-110), a sub mini toggle switch (PNP-120), and a slide switch (PNP-100). Choose the type of switch you prefer to use.

We strongly recommend that you use a switch loom in your loco, as this makes it much easier to charge the battery without causing undue wear and tear and unreliability of the battery connector.


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Speed Controller

The Cobra Speed Controller is an ideal choice for a wide variety of systems. It will cope with motor power up to 30W, which covers most vehicles in Gauge 0, Gauge 1, Gauge 3, and G Scale.

If you don't want to fit sound or our lighting module to your loco, choose the basic Cobra model, ESC-160. If you plan to fit sound to your loco, we recommend that you choose the ESC-165 Cobra with additional wiring to suit most sound cards. If you plan to fit both sound and our Lighting Module, we recommend that you choose the ESC-168 Cobra with additional wiring for light and sound.


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Motor Connection

The motor connection is important to connect from the JST lead on the speed controller to your motor. The standard choice here is the PNP-170 Motor Wire, which has a JST connection at one end, and needs to be soldered to your motor at the other end, and is fitted with suppression. We also have available the PNP-400, which ends in a two-way terminal block and may be more suitable for some projects. If you require a special motor wire, such as an extra-long one, please ring and ask us, as we can produce one for you.


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Receiver

For a battery-powered loco, the standard choice is one of our Rx2 range of receivers. The receivers come with either horizontal or vertical pins, depending on what kind of space constraints apply in your loco. The Rx2 H is longer, but the Rx2 V is taller once the connector plugs are connected. Both versions are also available with a long aerial (Rx2 H LA and Rx2 V LA), though this is usually only necessary if the receiver is going to be placed inside an enclosed metal box.


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Transmitter

To go with your Rx2 receiver, you will need an OMNI Tx-2.0, Tx-2.1, or Tx-2.2 transmitter.

The OMNI Tx-2.0 is the most basic model of transmitter, featuring a single knob to control the regulator, a power button, and three function buttons, which are used to control sound if it is fitted.

The OMNI Tx-2.1 has all the same features as the 2.0, plus an additional knob which applies inertia. This is useful if your motor is a worm drive motor, as it helps the loco glide more smoothly to a halt, instead of coming to a sudden stop.

The OMNI Tx-2.2 is similar to the 2.1, but instead of the regulator knob having a centre stop position, it features a forward-reverse switch, allowing the full travel of the regulator knob in either direction for finer control.


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Sound

Mylocosound: The Mylocosound universal sound cards are a popular and versatile option for sound. There are versions suitable for steam (SND-700), diesel (SND-701), light diesel (SND-703), and electric (SND-702) sounds. All are fully programmable when used in conjunction with the SND-710 sound remote.

To fit sound to one of our RC systems with a Mylocosound sound card, you will need the sound card, a three-way auxiliary cable (SND-430), and a speaker.

MTroniks: The MTroniks Small Diesel sound card (SND-300) is less versatile, but provides a very nice sound for certain classes of light diesel loco. To fit the MTroniks sound card to one of our RC systems, you will need a three-way auxiliary cable and a speaker.

DCC sound: The highest quality sound option we sell is the Legobiffoman DCC sound card. If this interests you, please contact us for more details.


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Lights

The LT-100 Cobra Lighting Module is a good lighting option for diesel locos. The module features two white LEDs and one red LED for each end of the loco, and the lights change direction automatically when the regulator knob switches between forward and reverse, as well as staying on at the same intensity when the loco is stationary. You will need the ESC-168 Cobra to operate this module.


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