(M) Bec-Kits power trucks

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(M) Bec-Kits power trucks

Postby Steve Bennett » Sat Aug 06, 2005 2:57 pm

Many will have noted that Gerry Bullock has long been using the power bogies from http://www.bec-kits.co.uk under his ever growing collection of locomotives and finally I have taken steps to make it possible to use these under some of the Sidelines kits.

At the moment I expect to be able to use them under the Gnat, Hornet and Firefly loco kits and they should be ready in the next couple of weeks. Having been testing one of these power units over the last week or so, I'm impressed with the performance and think they are very good value for money. I'm hoping to have some of the underframes and power bogies available next weekend at the Pewsey show, but for mail order, it will be cheaper to get the power bogies direct from Bec-Kits.

Here are a few pics of the new underframe parts and one with a Gnat body on top to show how it will look. It does sit a little higher than the Tenshodo version, but not by much. More info soon.

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Postby Steve Bennett » Sat Aug 06, 2005 11:46 pm

Just to clarify, at the moment I can only say for certain that the underframes will accept the 34mm wheelbase units with 10.5mm wheels, Bec - Kits catalogue number ME34D10. I think that larger wheeled versions of the same wheelbase will also work and will confirm this later in the week once it has been checked.
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Postby Steve Bennett » Sun Aug 07, 2005 10:25 am

Mine is far from run in, but a couple of observations. The slow speed running is pretty good, in my opinion better than the Tenshodo. I have found it runs better with a feedback controller and at the moment, powering with a straight DC supply is not quite so good and highlights a slight tight spot, I expect this to go with use. I do have reservations about running it on a continuous layout for any length of time with a feedback controller as past experience has shown that the small Mabuchi motors, do overheat if run continuously with feedback.

The metal construction is certainly an advantage and it runs very well without any additional weight, strangely adding weight doesn't seem to make much difference, although I'm sure it will aid pick-up. Initially it was very reluctant to run on anything but the cleanest of track, but this seems to have improved now. After running it for a while with graphite on the track and a Relco track cleaner, there is now no sign of it stalling at all, even climbing on and off the traverser on my little layout, so I guess it was a question of cleaning the coating off the wheels, it may also be that my track was dirtier than I thought.

Quiet I'm afraid is not a description I would use for it, but as it gets quieter with use, there is some hope. It does have quite a distinctive growl.

As most will know my knowledge of DCC is non-existant, I don't know how easy it would be to fit. It has individual pick-up plates underneath, one side is grounded directly to the chassis block and then a short length of wire from the chassis block to one motor terminal, the other side has a length of wire from the pick-up plate directly to the other terminal. It would be very simple to detach this wire and connect it to an overhead power supply which is how a lot of these units are used.

I suppose in conclusion that MY OPINION and using my control equipment, is that these are better than a Tenshodo, but fall a little short of the performance of a Black Beetle, but not by much and they are half the price. I'm going to give it a thorough test next weekend at the Pewsey show, so it will be interesting to see how it performs running continuously.

I hope this helps.
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Postby Steve Bennett » Sun Aug 07, 2005 7:54 pm

This is how tight the clearances were on the pizza layout, not a lot of room to spare:

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Postby Steve Bennett » Tue Aug 16, 2005 1:07 pm

The Bec-Kit saga continues, I have just received a 24mm wheelbase version from them. The design is different with this one as it is only driven on one axle, but despite that, it runs just as well as it's longer wheelbase relative and from the very limited test I have done with it, this one runs very well with a straight DC power supply.

There is no possibility of putting larger wheels on this one, as the motor would be in the way. The one drawback that I have found so far, is that any additional weight added to it will need to be above the driven axle, somewhat limiting what can be built on it, but this should be possible to get around. Yet another great product.

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Postby Steve Bennett » Tue Oct 11, 2005 3:28 pm

I have just recieved some useful additional information from Brian Robinson at Bec-Kits. Hopefully this will go some way to answering some of those questions that you have been afraid to ask, and may be of particular interest to those who are using DCC. As you will see Brian is very keen to help and if you need any technical info, dont hesitate to get into contact with him. Here is his message:

Dear Steve,
I have just had a look at the comments on our BEC-KITS trucks
on the 'Gnatterbox' web site and you are all very kind about them.
The Mabuchi motors tend to run fairly cool, especially the newer
ones. Feedback controllers shouldn't heat them too much if the power
into the controller is close to 12V. Some use quite high input
voltages around 18V straight from the transformers. Usually the
trucks run better on feedback than on straight DC.

One thing that could be added to the web discussion is that I
am happy to build the trucks with other wiring than normal 2 rail
power if requested. Either of these would save the user some work in
de-soldering the original connections and pickups.

Commonly, I can wire all the wheels together, isolated from
the chassis, and run the other motor brush to a wire for overhead
power, as required by some tram modellers.

I am interested in DCC control and can wire the trucks more
ready for this, probably at a small extra cost, as I have a printed
circuit board for making DCC connections to a pair of our bogies and
an 8 pin plug-in DCC module.

Perhaps you could post these comments on the 'Gnatterbox' web
site (to save me joining!) if you think they are useful.

Thanks,
Brian
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Re: (M) Bec-Kits power trucks

Postby John New » Tue Apr 25, 2017 5:33 pm

Have discovered today that BEC have transferred the motor bogie/chassis range to http://www.kwtrams.co.uk/ Have as a result updated this thread with their website URL.
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http://www.stephensonloco.org.uk | http://www.yorkshow.org.uk | http://www.island-publishing.co.uk

Remembering it’s a hobby and I am allowed to smile!


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