Yet another Marklin Bo-Bo chassis went down at this weekends Cleckheaton show. O.K I admit I wasn't paying attention as I was talking to a guy the other side of the layout and didn't notice that the Class 90 electric (which has a Marklin BR120 chassis under it) had stalled in the tunnel on Midsomer Mardy. Anyway, it was exceedingly hot and has refused to work again. I suspect either the Com or Armature have had it as the brushes look O.K I'm getting fed up with trying to fix Marklin chassis with their ancient open frame 3 pole motors and primitive brush gear It's the 21st century for Pete's sake! So I'm looking to see if anybody has fitted a coreless can motor into a Marklin Chassis. Any Thoughts? Kev
I have done it with several steam engines, Mikado, Pacific and 0-8-8-0 when converting them to n-scale narrow gauge engines with pewter boiler shells.
Most coreless motors are l o n g so there is little chance. The Maxon or Faulhaber motors at least. And $60 at least. Meander over here: http://www.micromo.com/ On ebay, http://stores.ebay.com/microlocomotion.
Specialist for such a conversion is Michael Bahls (www.michael-bahls.de) Not cheap, but what I hear very good. He offers conversion kits too. He is also doing traction tires.
The conversion kit is to be found here: http://www.michael-bahls.de/indexVI.html is intended for most locos with bogies and priced at 79 euros. Installation will cost you another 39 euros, 49 if you would lighting kept. SB-modellbau sells converion kits, too: http://www.sb-modellbau.com/index.php?cPath=264 I haven't had any experience yet with either, but Kai does, see his website: http://wuesti.union-web.net/modellbahn/index.html As I understand it does require some milling ("fräsen"). Google translate makes this of his report: "The BR 216 has been equipped in self-assembly with a Faulhaber motor. The kit was delivered by self-service model . The engine is equipped with a flywheel. The original motor and the circuit board to be removed. Then room must be created with the router (milling drill) for the new engine space . Then the motor is stuck on a supplied bracket . The included installation instructions should be strictly adhered to. The driving behavior changes dramatically compared to the 3- pole motor . The locomotive creeps in walking speed over the tracks . In line speed she drives stubborn about any power interruption and shows very uniform in front of the train . The outlet increases tremendously when you dispense with lighting. With incandescent bulbs the outlet is barely larger than a Märklin model. The motor during a power interruption to the dynamo for the lighting. The removed by the incandescent energy then brakes the motor. Does the engine run alone, so the self-inductance of the motor produces an increased voltage. It is dependent on how strong the locomotive will be charged . Is the driving resistance increases at a gradient or by constraints on the track , the voltage decreases again . This leads for locomotive running without cars to an unexpected rise and fall in the speed again . But this is not to be compared with the usual bucking other Z locomotives and disappears, as soon as is driven with a train . Then it continues with fascinating uniformity. It is interesting that the pulling power improves despite the lower weight. This is probably because the flywheel takes the load peaks of the motor and so not easily spin the wheels. The locomotive has a unique sweet side , but becomes noticeable only at direct changes of direction . Then, the voltage fluctuates on the SB- model half-wave driving device because of the self-induction by almost 1V . The locomotive needs with a long train on the hook a higher voltage to start rolling ." BTW I have read rumours (somewhere, can't find it anymore)that Marklin will come with a new generation of motors for Z. Matt
