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Tenshodo Spud - On Members Workbenches. - More Practical Help - Your Model Railway Club
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 Posted: Tue Jan 27th, 2015 08:06 pm
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Folkwizard
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I don't know if this is the right place for this,so feel free to move if not. I don't like Spuds,but my choice of loco means I have to use them. Fitting a larger wheel is not a problem. Converting to Dcc likewise. But new pick ups are needed usually. I wondered if a Spud could be made to work in a "halfway" form. Namely, one set of pick ups. So I took the beast apart and had a think.I had some etched phosphor strip available, 12 thou thick, bit heavy but what the heck. I then marked the wheelbase of the Spud on a piece and drilled 2 mm. Checked for fit perfect. I then got some Markits live axle 12 mm bogie wheels,drifted off the insulated side then fitted the Tenshodo gear to the axle. Making sure it was central, I reassembled the axle and checked the bb. All OK so far. But when I went to fit it to the chassis, it wouldn't go due to width of chassis. Next step was definitely crazy. I took one side of the chassis off! It fitted. The motor went in with no trouble and then everything else was assembled. Temporary DC wiring installed, checked with meter, no shorts, then on the rails. It worked,with no weight on it.  Seemed a lot more responsive to the controller (Gaugemaster). Next job is fit a TCS chip. Then I'll have my Muir Hill in service,once its been to the paint shop. I knew I was mad.   



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 Posted: Wed Jan 28th, 2015 12:09 am
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jimmy styles
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Sounds interesting, I have used a spud and seemed to get good results.

I would be interested in any photos of your projects

Jim

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 Posted: Fri Jan 30th, 2015 10:54 am
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SRman
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I have quite a few SPUDs sitting idle as I have gradually replaced them with Black Beetle (BB) motors. I generally found the SPUDs to be a little erratic in their running qualities whereas the BBs are consistently smooth.

The BBs are a little bulkier than the SPUDs so may not always be suitable as replacements though.

There is the infamous story of my blowing up a TCS decoder by wiring it the wrong way on a BB though!! The smoke effects were very good but didn't last long and stank a bit!

:hmm  :thud



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 Posted: Fri Jan 30th, 2015 11:21 am
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jimmy styles
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I need to buy some more spuds

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 Posted: Mon Apr 13th, 2015 05:18 am
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BCDR
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I'm always amazed at what can be done with a SPUD. I got fed up messing about with them and now use Stantons - less bulky than a BB, DCC ready, and a range of wheels/lengths. I haven't attempted a spoked wheel conversion, but it's on the list. 2mm axle (I think) so it shouldn't be a problem.

Nigel



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 Posted: Mon Apr 13th, 2015 05:04 pm
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Petermac
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I missed this thread first time around Henry ...............

I have SPUD motors driving my tube train and it's for one of those that I needed the pick-up wire you so kindly offered to send me.  It has lighting picking up from the centre rail and returning via the SPUD wheels.  The axle bearings had to be replaced and I couldn't get the old strip pickup to make contact without putting too much pressure on the wheel backs.  I think (hope) this was resulting in a constant derailing problem.  They're finescale wheels on Code 75 rails so don't take much to jump the rails.



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 Posted: Mon Apr 13th, 2015 06:18 pm
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Folkwizard
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Like you, I had to replace the pick ups when I rewheeled the Spud. I soldered the pick up wire to a couple of pieces of copper clad, then super glued that to the Spud. The wires bear down on the wheel tread. As long as only light pressure is applied, it seems to work OK. Just an idea Peter,if you are returning via one side. I've used Markits Live wheels successfully on some of my fleet. Just one pick up is required then. I assume you pick up from the third rail via a shoe?



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 Posted: Mon Apr 13th, 2015 07:02 pm
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Petermac
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The centre rail pickup is a wire brush Henry - like those used in the old Scalextric cars.  The leading car (of the 4 car set) has the lights and pickups but not much weight.  The motors (2 off) are in the 2nd car.  I've read that pushing that first car can cause problems but we'll see.

A good tip about using a bit of copperclad - I was going to try it with copper tape but wondered how I'd go about soldering before sticking it to the bogie - it's very floppy tape but the plastic bogie wouldn't allow soldering in situ ............:cheers

I'll bear those Markits wheels in mind if I can't get these to work ..........:thumbs



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 Posted: Mon Apr 13th, 2015 09:03 pm
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Folkwizard
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Copper clad in itself, i.e. sleeper strip, would allow you to solder in situ Peter. I would solder the wire to the strip then super glue, or araldite, to the Spud. The wire could then be placed on top of the wheel. With copper tape, I'd have thought the heat of the iron would destroy the adhesive.



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