Power Functions For Trains - XL Motor vs M Motor ?
Posted 06 December 2009 - 02:15 PM
Some of you will remember my recent MOCS, I've been working on a slightly smaller scaled cargo train. Regular 9V train motor is too big for my engine so I had to make one myself - will post pics here once finished. I built the chassis of the engine but I have doubts about using a Power Functions M Motor. Emerald Night used an XL so I wonder if M could carry all cars? I'll have 4 light(ish) cars plus one engine. The problem is, if I use the XL motor it'll be a huge chunk to cover and that'll result in an ugly piece of engine. M motor on the other hand will fit properly but I have doubts about the pwoer it can provide. I don't have the chance to try them now and I can't buy both just to see how it works out. Any advices?
Posted 06 December 2009 - 02:22 PM
I think that there is no other way but to try it. And please let us know. M motors are much cheaper and easier to get than XL motors (which are only in Bulldozer, Dino and new tecnihc truck)
Posted 06 December 2009 - 03:11 PM
Posted 06 December 2009 - 04:22 PM
What kind of gearing did you use to get the right balance of speed and power with the M motors?
UPDATE: An engine with one M motor connected directly to the truck from this Railbricks post will pull the Metroliner Club Car and two Santa Fe cars, but it only works with the proper weighting and the o-rings like Railbricks suggests. I had to position the PF rechargeable battery almost directly over the driving truck to get enough traction, but the heavier normal battery box should give better traction.
Edited by soc399, 06 December 2009 - 05:50 PM.
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