These come in two main types, twin worm drive with a remote O ring drive motor or a planetary geared motor with twin O ring drives to the axle. All my motors bogies use Chinese gears and motors of which I keep large stocks, so replacements are available if required. The O rings are nitrile, not rubber so they will not perish, do not set in a shape if left standing for a long time and are unaffected by oil if any gets on them. The motors may look small but are generally more powerful than other similar types. I have used many of all the types I sell and have found them very reliable and forgiving of abuse. I have had a couple of faulty ones but I have not managed to destroy one yet, despite hours of trying.
Exact gear ratios are difficult to calculate when an O ring drive is included so the figure given is a best guess, usually its the worm drive ratio x the approximate O ring ratio, eg 16:1 x 2.5:1 = 40:1 or 12:1 x 3.2:1 = 38:1.
The motors are listed further down this page and their codes are used in the kit descriptions.
This is marketed as the Universal Power Bogie and designed as a replacement for the Tenshodo unit. It will fit where a Tenshodo fits but comes with a top plate which can be used as an under floor mounting, cut down to just a top strip, provides a center pivot point or can be left off.
It has 20:1 worm sets on each axle and an O ring drive of around 2.5:1, total 50:1. It can be built to 7 wheelbases from 24.5 to 35mm in steps of 1.75mm and suits any gauge down to 12mm. The motor is a Japanese M10, which clips into slots in the frames. A flywheel at £3 extra can be fitted to the two longest wheelbases but is not really necessary.
Universal Power Bogie kit - £42.00
Supplied with 10.5, 12 or 14mm wheels
The 3D printed Power Bogie is a follow on from the etched one and has proved to be more universal. Printed in one piece, it has side tags at both ends that can be cut to fit the loco body. They are sold in a range of wheelbases including 15, 17, 19, 21 and 22.5mm, others can be made to order.
It uses Chinese gears of ratios from 10:1 to 16:1 depending on wheel size and an O ring drive around 3.5:1, total around 35:1 to 50:1. Motors are Chinese and can be M10, M20, N20, N30 or anything there is room to get in. The motor sits on top of the bogie so this unit can only be used if there is bodywork to hide it, as in a diesel.
The standard sizes suit any gauge down to 12mm, 10.5 and 9mm can be made to order. Wheel sizes available are 8.5, 9.5, 10.5, 12 or 14mm.
3D printed power bogie kit - £40.00
Flywheel to suit - £3.00
These 3D printed units are made to order. I prefer to have the body to hand when drawing the chassis, you can post it direct or, if buying a Shapeways body, use my address as the shipping address and it will come direct to me.
The pictures left shows a Schoma gas burner and an LKM Ns2 with their bespoke power bogies, below is a Jung EL105, below that is an LKM Ns1 modified to 16.5mm, below that is a Feldbahn Struver, its actually 1/35th scale as the 1/43rd one was far too small to motorise. below that is an O&K MD1 and finally a CKD BN 30R.
As I have made quite a few for Shapeways prints and have the drawings ready, it is a simple job to print one off or adjust the drawing for an odd gauge when required.
So far I have produced chassis for the Shapeways locos listed below, wheel size/motor/gear ratio/gauge are shown for each type.
- LKM Ns1 - 8.5mm/N20/30:1/up to 14mm (from T3 Design)
- LKM Ns2 - 10.5mm/N20/40:1/up to 16.5mm (from T3 Design)
- Jung EL105 - 8.5mm/N20/30:1/up to 14mm (from T3 Design)
- O&K MD1 - 8.5mm/N20/30:1/up to 14mm (from T3 Design)
- Feldbahn Struver - 8.5mm/K20/30:1/up to 16.5mm (from T3 Design, I used the 1/35th version)
- CKD BN 30R - 9.5mm/N20/30:1/up to 16.5mm (from T3 Design)
- Schoma gas burner - 10.5mm/N20/40:1/up to 16.5mm (from T3 Design)
-Simplex - 21.5mm/12-21/45:1/32mm (O std gauge from Recreation 21). This one uses Slaters wagon wheels and will cost £16 extra or you supply the wheels.
All custom worm drive Power Bogie kits are £40
If designed to order they will be RTR only as I have to test them and are £70 each, if more than one are ordered, the rest can be sent as kits at £40 each.
I discovered these geared motors on a Chinese website and tried them out, they can only be used where the motor is in line with the axles as no 90 degree turn is possible. The pictures left shows a Nigel Lawton 20hp Simplex and a Shapeways 3D printed one, below is a close up of the chassis, below that is a Henrik Laurell 32/42hp Simplex, below that is a WD protected Simplex, the armoured is the same and the open similar but with a lower motor. last is the Recreation 21 20hp Simplex which is still giving me problems.
The larger motor is a variation of the M10 motor with a planetary gearbox of around 120:1 ratio, so I use pulley sizes to speed up the final drive a little. The smaller motor is a 6mm coreless motor with a 142:1 planetary gearbox which needs pulleys around 1.5:1 to speed it up around 50%. Bogies with the larger motor turned out fine but the smaller motor is far too noisy, I am still trying ways to make it usable.
So far I have produced chassis for the Shapeways locos listed below plus the Nigel lawton and Wrightlines Simplexes. Wheel size/gauge are shown for each type, gear ratios are all around 100:1.
- WD Simplex - 10.5mm/up to 21mm ( armoured or protected from Recreation 21)
- WD Simplex - 10.5mm/up to 21mm (open version from Recreation 21)
- WD Simplex - 10.5mm/up to 16.5mm (Wrightlines)
- 20hp bowframe Simplex - 10.5mm/up to 16.5mm (Nigel Lawton)
- 20hp bowframe Simplex - 9.5mm/up to 16.5mm (still under trials, from Recreation 21)
- 32/42hp Simplex - 10.5mm/up to 16.5mm (from Henrik Laurell)
-20hp plateframe Simplex - use etched Universal Power Bogie - 10.5mm/12 to 16.5mm (from Davids railway bits)
All custom planetary geared power bogies are £40 as kits, £70 RTR
If designed to order they will be RTR only as I have to test them and will be £70 each. if more than one are ordered, the rest can be sent as kits at £40 each.
All the options I stock are listed below. Chinese motors differ from the Mashimas we are used to in that they are not designed to be repaired. They will last as long as a Mashima, then you replace them when they die. This makes them effectively maintenance free, other than oil, and a lot cheaper. The main issues are firstly that the mounting holes are in a different place, so I offer 3 types of etched mounting plate to fit all motors on the list, solder these on top of a standard gearbox, drill through the relevant holes and fit as normal. Secondly the shafts are mostly 1mm, so I offer sleeves to convert to 1.5mm to take standard worms.
The Chinese rate their motor voltages differently to Mashima and other makers, they use the voltage of the proposed use as the rated voltage, this means that all motors are under rated and are often available from different sources at different ratings, despite being the same motor. I have attempted to destroy samples by overloading them and leaving them running on 12 volts over night but they all survived none the worse for everything I did to them. I consider all the motors I sell to be safe on 12 volts and will replace any FOC that burn out in less than 2 years.
M10 - 8 x 11mm flatcan, 1mm shaft both ends, horizontal screw holes, Japanese.
M10 motor - £12 each
M20 - 8 x 15mm flatcan, 1mm shaft at one end, horizontal screw holes, Chinese.
M20 motor - £8 each
M30 - 8 x 20mm flat can, 1mm shaft at one end, horizontal screw holes, Chinese.
M30 motor - £8 each
N20 - 10 x 15 flat can, 1mm shaft at one end, diagonal screw holes, Chinese.
N20 motor - £8 each
N30 - 10 x 21mm flat can, 1mm shaft at one end, horizontal screw holes, Chinese. This is a high power motor and draws power similarly to the old X04 motor.
N30 motor - £3 each
N30 (long)- 10 x 25 flat can, 1mm shaft at one end, horizontal screw holes, Chinese.
N30 (long) motor - £8 each
050 (short) -12 x 19mm flat can, 1.5mm shaft at both ends, diagonal screw holes, Chinese.
050 (short) motor - £8 each
050 (long) - 12 x 27mm flat can, 1.5mm shaft at one end, diagonal screw holes, Chinese.
050 (long) motor - £10 each
030 - 15 x 25mm flat can, 2mm shaft at one end, no screw holes, Chinese. You may recognise this as a Smokey Joe motor, also used in other Hornby locos. I was sent a batch in error and China doesn't want them back.
030 motor - £2 each
A new motor has just become available and is said to be 6 pole! Anyone who knows motors knows that a DC motor must have an even number of magnets and an add number of poles. This does indeed have 6 poles but they are wired as 2 x 3 poles and have 2 pairs of magnets at 90 degrees to each other. This gives more power in a smaller package and they are really quiet and smooth.
They do get hotter than most other motors at high speed so I left one running flat out all dayand have not managed to melt it yet. They only heat up above about 75% max power but no-one uses that kind of speed in a loco anyway. A Japanese company has been using them for years in OO9 locos but this is the first time I have managed to buy them direct from the factory. They have no code number and measure 10mm square and 15mm long with diagonal holes and a 1mm shaft.
Square 6 pole motor - £10 each
This geared motor was originally designed for use in a camera for lens focusing, hence the odd shape to the body. It starts life like the one shown on the left and I modify the gearbox to be like the one on the right by adding a small 3D print and tube bushes. Based on an M15 motor with a worm drive 4 stage gearbox of around 80:1 ratio, deceptively powerful for its size and very quiet and smooth. This will be my default choice for future kits. To use with 1/8th wheels, sleeves can be added to the axle ends.
M15 worm drive geared motor (2mm axle) - £16 each
Another geared motor has come to light, also a camera type but slightly larger and based on the N20 motor. The gear ratio is around 110:1 with noticeably chunkier gears in its 4 stage gearbox. This also uses a 2mm axle and is the same width (10mm) and can also be converted to 1/8th by adding sleeves.
N20 worm drive geared motor (2mm axle) - £16 each
Becoming rather unsatisfied with the choice of wheels available I decided to have my own made. They are brass cut to RP25 code 110, about the same as current Hornby/Bachmann, then blackened. The plastic bushes are turned, not moulded, so hold their shape when pushed onto an axle, no more wobbly wheels if you do it with them in a vice.
Available in 8.5, 9.5, 10.5 and 12mm with blind axles at £2 per axle, add 50p for pinpoint