Clayton CB1.75FC-7 folding cab battery electric locomotive
7/8ths inch scale introduction and instructions


The Clayton is a small 1.75 ton battery electric locomotive with a folding cab commonly used in mining and tunnelling manufactured by Clayton Equipment Ltd.

The model has 2 motors and gearboxes completely hidden in the chassis giving direct 4 wheel drive controlled by a Loco Remote Maxi with directional lights. It is powered by a PP3 battery or 11.1V lipo. For PP3 either use a standard 9V alkaline battery, or search Amazon for "PP3 li ion rechargeable battery" and select one with a built in USB charge socket like this to save removing it from the loco.

The kit contains everything you need including a Loco Remote Maxi to build a fully remote controlled loco. Just add a battery and a custom driver from the Clavey Models eBay store to get up and running with your smartphone.

Parts are 3D printed in PLA ST (super tough) and PLA +. This means that while it is fine to run it anywhere, do not leave it standing outside in hot sun for any length of time, especially if it is unpainted. Above around 50 degrees C (120 degrees F) PLA can start to soften and so it may deform. Remember this is the temperature of the PLA which may be higher than the air temperature in the sun. PLA ST is more resilient than standard PLA.

The kit has been designed to have some of the parts friction fit together without the need for glue. Polystyrene cement (used for Airfix kits) works well on this PLA. We suggest Revell Contacta Liquid Glue with Professional Needle Applicator. Apply a fine line using the needle applicator and then hold the pieces together until set in a few minutes. Other glues including epoxy can be used but note that cyanoacrylate (super glue) may well leave a white bloom on the surface of the PLA that is hard to remove. This may be okay if you are painting it afterwards but otherwise best avoid it.

For the friction fit parts, a very gentle rub with wet and dry paper may be needed on some edges if they are too tight. Similarly some of the holes may need slight opening with a needle file or finger drill. Please do this slowly and gently. If there are any fine strings left over from printing, gently remove these with your fingers, a sharp knife and wet and dry paper.

www.locoremote.co.uk

Parts



3D printed parts

The parts in the red box are for the 32mm gauge model and those in the yellow box are for the 45mm gauge model. All other parts are common to both models.
  • Chassis, 2 side skirts (32mm gauge only), battery box, 8 vents, vent guide, battery box cover, battery box support, front buffer beam, front buffer, rear buffer, rear buffer guide, cab back, cab floor, seat, 4 wheels, 4 wheel motor mounts, brake lever, controller box, controller top with knobs, gauge, switch cover
Electrical and other parts
  • Loco Remote Maxi with 2 motor outputs and lights
  • 2 combined motors and gearboxes
  • Wired power cable with on/off switch and battery connector
  • Wired front and rear lights on short pole
  • Rivet coupling pin
  • Round head pin
  • 2 17mm long 1.5mm brass rods
  • 2 Clayton waterslide decals

Wiring and electronics check

A special Loco Remote Maxi is provided with 2 pairs of motor outputs (rather than 1 pair as standard), hence the 4 pins on the 2nd board down. All 7/8ths inch scale kits are supplied with the wiring looms made up. The first thing to do is to check you can set up the Loco Remote control interface on your phone and get everything working.


Batteries
  • You will have either a PP3 or red JST battery connector that should match what you ordered
  • For PP3 use either a standard 9V alkaline or preferably a 8.4-9V Li-ion like this from Amazon with a built in USB charge socket so you can recharge it without removing it
  • PP3 NiMH batteries can be used but are not recommended as they have much smaller capacity and run time
  • For red JST use a 3s 11.1V Lipo with a matching connector that will fit in the space in the bonnet - the one in the photo is a 370mAh Turnigy nano-tech
  • Make sure the switch is set to off - the black handle should be pushed so that it does not go over the 2 red wires - when connecting a charger to either the PP3 Li-ion or 11.1V Lipo battery


Maxi connections
  • Plug one pair of motor wires into the outer 2 Maxi motor connections with the orange wire on the outside
  • Plug the other pair of motor wires into the inner 2 Maxi motor connections with the orange wire on the outside
  • The 2 yellow wires should be next to each other with the 2 orange wires outside as in the photo
  • With the battery not connected, plug the white power plug into the Maxi battery input - it is keyed and must only go the way shown with the red wire on the outside of the board
  • Plug the brown, black and white wires of the lights into the pins marked F LED +, R LED - and R LED + on the green board, with nothing connected to the outer most F - pin as in the photo


Maxi setup and operation
  • Place the motors so the yellow wires of each are on top
  • Make sure the switch is set to off - the black handle should be pushed so that it does not go over the 2 red wires
  • Connect the PP3 or Lipo battery - the connector should match what you ordered
  • Check everything works by turning the switch on
  • The blue LED on the Maxi board and front LED should do a brief flash
  • Connect your smartphone to the Maxi as described in the Maxi setup guide
  • Run the controller from your screen
  • When going Forward, the motor shafts should be rotating anti clockwise as you look from the bottom of the photo up (make sure the yellow wires are on top)- if either/both is rotating clockwise reverse the yellow and orange motor wires
  • When going Reverse, the motor shafts should be rotating clockwise as you look from the bottom of the photo up (make sure the yellow wires are on top)
  • Touching the Lights button should toggle the front or rear light on and off
  • You can change the name on the screen (for example to Clayton) and password if you wish as described in the Wi-Fi connection and controller operation guide
  • Once you are happy everything is working correctly, turn the switch off and disconnect the components
  • Always remember to switch the power off when you have finished running so the battery does not fully drain
IMPORTANT! Only use the recommended PP3 or Lipo battery. Please download and read the setup guides from the links below before proceeding further, especially if you have not used a Loco Remote before.

Assembling the loco

If you are planning to paint the kit and/or apply the decals you may want to paint some parts or sub-assemblies first. If you plan to apply the decals, please read these instructions from Endon Valley Custom Decals before continuing.



Battery box -1
  • Locate the battery box, 4 vents (8 are provided so you have 4 spare), vent guide and gauge


Battery box -2
  • Align the guide on one side and hold it in place with Blu Tack or similar
  • Put 2 small dots of glue in the holes and fit vents into these - the gap in the vent should be on the inside at the bottom
  • Make sure the glue does not spread under the guide and stick this to the box side!
  • Leave the glue to dry thoroughly then repeat for the vents on the other side


Battery box - 3
  • Once the vents are firmly stuck on, glue the gauge oriented as shown on the back of the box near the switch hole


Cab - 1
  • Locate the cab back, cab floor, seat, rear buffer and rear buffer guide


Cab - 2
  • Push the cab seat firmly into the bar as shown and glue it to the back corner as shown
  • You may need to open up the hole on the seat that fits onto the bar slightly if it is too tight


Cab - 3
  • Glue the cab floor to the cab back
  • Use some small pieces of Blu Tack to keep the parts pushed together while they dry
  • Make sure you don't stick it to the worktop!


Cab - 4
  • The front and rear buffers may look similar but they are different - the thinner one is the rear
  • Align the rear buffer guide oriented as shown on the cab back and hold it in place with Blu Tack or similar
  • Put some glue in middle of the hole and fit rear buffer into this - the printed bolts go at the bottom
  • Make sure the glue does not spread under the guide and stick this to the cab back!


Controller box
  • Push the smaller plug from underneath through the hole on the controller top
  • Push and glue the controller knob onto this - it should be free to rotate in the hole
  • Cut the round head pin to the desired length (around 9mm) and glue this in the small hole in the knob
  • Glue the controller top onto the controller box


Chassis - 1
  • The 45mm chassis is on the left and the 32mm on the right
  • For the 32mm chassis glue the 2 side skirts to the sides of the chassis aligning with the wheel cut outs
  • Glue the front buffer beam to the chassis - the sticking out parts should be on the inside


Chassis - 2
  • Glue the front buffer to the chassis through the hole on the buffer beam - the printed bolts go at the bottom


Wheels - 1
  • Each standard wheel comes in 2 parts - a wheel and a keyed motor mount
  • The motor mounts have a keyed hole at one end and are blank at the other
  • They are designed to be a very tight fit into the wheels and you may need to rub the blank end edges on some wet and dry paper
  • Apply a good amount of glue into the hole in a wheel
  • Push the blank end of a motor mount into this
  • Push it all the way in making absolutely sure it is square in the hole - putting the mount on a flat surface and tapping the wheel onto it with a hammer with a small protective piece of wood on this may help


Wheels - 3
  • Repeat for the other 3 wheels
  • Make sure the motor mounts are square in the holes - an easy way to check is to put the 4 wheels on a flat surface as shown, rotate them and check all the treads are at the same height all the way round
  • If the motor mounts are not square or pushed in different amounts then the loco may not run smoothly - take your time over this


Motors - 1
  • Push the wheels onto the keyed axle shafts of the motor
  • The depth of the hole in the mounts should set the gauge automatically


Motors - 2
  • Push each mount in making absolutely sure it is square - putting a wheel on a flat surface and gently tapping the other end of the axle with a hammer with a small protective piece of wood on this may help
  • Alternatively you can carefully squeeze the mounts on using a vice
  • Take your time and don't push too far
  • For 32mm gauge the inside back to back distance of the wheels should be 28mm and for 45mm gauge it should be 41mm
  • Make sure all the wheels are on square


Motors - 3
  • Position the motor with the longer 10cm wires at the rear with the yellow wire towards the rear
  • Position the motor with the shorter 8cm wires at the front with the yellow wire towards the rear


Motors - 4
  • Push the rear motor all the way up into hole at the rear of the chassis rotating it forwards as you do
  • Use a pencil to push the side of the motor against the floor of the chassis - it should click in place past the retaining lugs
  • The yellow wire should now be on top


Motors - 5
  • Repeat for the front motor rotating it backwards as you push it up through the hole
  • Use a pencil to push the side of the motor against the sloping shelf of the chassis - it should click in place past the retaining lugs
  • The orange wire should now be on top
  • If you ever need to remove the front motor use a small screwdriver to gentle lever the end with the wires up so it unclips
  • If you ever need to remove the rear motor, remove the front one first and then use a small screwdriver to push it out from the hole underneath it so it unclips


Battery box support
  • Glue the battery box support to the chassis
  • The front should be a fraction of a mm behind the front of the buffer beam and the hole aligned with the hole in the chassis


Battery box cover and lights - 1
  • Locate the battery box cover and front and rear lights
  • Feed the black plugs one at a time through the hole in the cover


Battery box cover and lights - 2
  • Align the lights so that the brown wire for the front light is closer to the front
  • Glue this assembly into the hole in the cover
  • Make sure that the lights are perpendicular to the cover from the front and the side


Cab fittings
  • Glue the controller box and brake lever in place, oriented as shown


Fitting the battery box
  • Feed the motor wires through the hole in the floor of the battery box - do not glue the box in place yet


Fitting the Maxi controller - 1
  • Plug the motor and lights cables into the Maxi as described above
  • With the battery not connected, plug the white power plug into the Maxi battery input - it is keyed and must only go the way shown with the red wire on the outside of the board


Fitting the Maxi controller - 2
  • Fit the on/off switch into the hole with the cut part at the bottom and polyfuse at the top - when the handle is down the power is off
  • Glue the L shape switch cover over the switch to keep it secure


Fitting the Maxi controller - 3
  • Slot the Maxi into the holder in the battery box
  • Make sure the switch is off (down) and connect the battery


Fitting the Maxi controller - 4
  • Switch on and check everything works correctly
  • If the front and rear lights show the wrong way round just swap the plugs of the brown and white wires on the Maxi
  • If one or both motors go in reverse when set to forwards just swap the relevant pair(s) of yellow and orange wires on the Maxi
  • Optionally glue the battery box to the support


Attaching the cab
  • Feed the 2 17mm brass rods through the holes in the chassis
  • Clip the cab in place on the rods


Coupling pin and battery box cover
  • Cut the coupling pin to the desired length
  • Push the wires in the battery box down and clip the battery box cover in place - do not glue it so you can access the battery


Transfers and final comments
  • If you want to apply the decals, please read these instructions from Endon Valley Custom Decals
  • Use a sharp knife to cut out each decal - if you cut the top corners off the decal will just fit between the vents
  • Although the Endon Valley instructions recommend applying a gloss coat first, I found that the decals will adhere directly to the printed plastic sides of the battery box but should still be covered with a clear spray varnish
  • The Clayton is capable of pulling a few lightly loaded wagons
  • Driver Robin fits and is available in 7/8ths inch scale from the Clavey Models eBay store
  • Power it up and enjoy
  • Always remember to switch the power off when you have finished running so the battery does not fully drain