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  • Topic: Battery R/C into anACCURAFT C21 & K27.

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    • December 18, 2005 2:34 AM EST

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      Today I finished installing RCS battery R/C and Sierra sound in both an Accucraft C21 and K27. Here are a few pix on how it was done. Not knowing what the actual current draw requirements were I chose to use 5 amp RCS Basic+ motor drivers. As the owner did not want to have any holes drilled in the bodywork I opted to mount the charge jack and ON-OFF switch behind the tender front coal access plate on both locos. This simply lifts up with your fingers.

      The pcb in front with the two big coils is the unit I supply for heavy duty trail car installs. It usually fits behind a box car door so it was perfect fot use here.

      The C21 has well thought out wiring that does not require any modification in the loco. The K27 is a different story. More later. The C21 normally has a distribution pcb behind the sliding front plate which was in the way and not required so I removed it. The BASIC-5+ Motor Driver and the BIK-TC5a were both mounted with silicone adhesive on an L bracket I made up in styrene. This assembly was also glued in place with silicone. Another sheet of styrene was glued to the speaker and back of L assembly as the support for the Sierra sound and RCS sound trigger components. On the C21 I used two 8 cell (9.6 volt) 2,500 mah AA NiMh packs wired in series to give 19.2 volts nominal. 22.5 volts when fully charged. These were also mounted with silicone on each side of the tender.

      This close up might give a better view of the parts.

      For both locos I made up reed switch chuff timers from readily available alarm system parts and used two very small rare earth magnets super glued to the non metallic wheels. This gives almost exactly 4 chuffs per driver wheel revolution. I removed most of the slop in the axles with fibre washers on the axle ends.

      I was not sure what to do about the antenna so I chose to mount an AZARR on top of the coal load and feed it down to the RCS RF-RX which I mounted under the metal tray. If this works OK the antenna, although virtually invisible, can be covered with some more coal

      If range proves to be a problem I may re-route the antenna down to the insulated wheel pick ups on one side of the tender. This works well in some locos but because the case of the motor in the loco is mechanically connected to the body and therefore one side of the track it may not be successful as the motor will radiate some RFI. Time will tell. As previously mentioned the C21 wiring was OK as is. All I had to do was provide a regulated 6 volt supply for the loco lights. I did try 1.5 volts as the loco has 1.5 volt micro bulbs. That is so but they are wired together in series and parallel so 6 volts was it. I used the same 6 volts as I used to power the Sierra sound via terminals #2 and #4. Here are similar pix of the K27 that show the 8 cell (9.6 volt) Sub C 3,300 mah NiMh packs and how they were mounted.

      The following pic shows the type of connectors which are secured under the front edge of the tender by two brass wire loops I fabricated out of thin brass rod. To protect the cables I used some heatshrink tubing.

      I had to modify the wiring on the K27 Loco. This is reasonably accessible as the wires come to what could be called a "terminal strip" under the firebox. By removing the coupler drawbar plate it is possible to gain access to the "terminal strip". Undoing the nuts holding the wires was the hardest part. I had to cut the nuts off one screw. I was shocked to discover the pick up wires were single strand black bell wire. Certainly not up to what I would call adequate standards. This is not really a problem with battery R/C as these wires are discarded anyway. The motor wires are quite substantial and were spliced into a two way in line connector assembly I use with trail car installs. These are the same type as are used by Aristocraft for trail car connectors. I used the same type connectors, the other way around, for the contant brighteness lighting power. I disconnected and removed the original 6 volt supply from behind the smoke box door and fed the new wiring direct to the lights. Both locos run superbly although they were bit touchy on the speed control when the acceleration rate was set at 5 seconds. I changed that to 10 seconds on both. Please feel free to ask any specific questions on how I went about the various procedures.
      ____________________________________

      Best wishes,
      Tony Walsham

      Remote Control Systems. www.rcs-rc.com/
        Modern technology. Old Fashioned reliability

    • December 18, 2005 9:18 AM EST
      • Large Curmudgeon, Ft Gay, WV
         
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      Geeee!!!! I wish my wireing jobs would come off that professional! Nice Job Tony!
    • June 23, 2014 5:08 PM EDT
      • Peoria, AZ
         
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      I have the RCS stuff in my K and it works a treat. I have plugs (painted black) in the rear of the Tender and the switchs under the water fill lid. Everything else is in the Tender.

       


      I love the RCS controller. It is small, easy to see all controls, and has every setting I need.

      ____________________________________

      - Never Ask Permission. Only Forgiveness
      - Check Out my Website: http://www.sourdoh.com

    • June 24, 2014 8:40 AM EDT
      • UK/Ontario/Oregon
         
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      Very neat.

      Trouble is, Mr W lives in Australia, and I don't.

      tac

    • June 24, 2014 8:58 AM EDT
      • Lunenburg , Massachusetts
         
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      Tac. If your looking for RCS stuff in the USA, I think TOC is a installer. Dave Goodson lives in Washington state. Or you could try cordless renovations website. Tony has his own I believe it is 2.4 gz.
    • June 24, 2014 9:08 AM EDT
      • UK/Ontario/Oregon
         
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      Thanks, Todd, but I live in UK.

      There are some people here I wouldn't trust to unpeel a banana, let alone let 'em loose on my $4500 model.

      tac
      Ottawa Valley GRS

    • June 24, 2014 9:50 AM EDT

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      Terry.

      You might like to get in touch with my UK agents.

      Either David Pritchard at LocoControl http://www.lococontrol.co.uk/page4.htm or Brandbright.

      ____________________________________

      Best wishes,
      Tony Walsham

      Remote Control Systems. www.rcs-rc.com/
        Modern technology. Old Fashioned reliability

    • June 24, 2014 10:18 AM EDT
      • Deer Park, Washington
         
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      tac Foley said:

      Thanks, Todd, but I live in UK.

      There are some people here I wouldn't trust to unpeel a banana, let alone let 'em loose on my $4500 model.

      tac
      Ottawa Valley

       

      Ship it to me, I got a screwdriver and a soddering iron.  :)

      ____________________________________

      Not only does my mind wander, sometimes it walks off completely.

       

      Some people try to turn back their odometers.  Not me.  I want people to know why I look this way.  I've traveled a long way, and some of the roads weren't paved.  Will Rogers.

    • June 26, 2014 12:38 AM EDT
      • Poughkeepsie, New York
         
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      Does that mean you are certified for banana peeling?
    • June 26, 2014 10:14 AM EDT
      • Deer Park, Washington
         
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      Got my certificate on the wall.

      ____________________________________

      Not only does my mind wander, sometimes it walks off completely.

       

      Some people try to turn back their odometers.  Not me.  I want people to know why I look this way.  I've traveled a long way, and some of the roads weren't paved.  Will Rogers.

    • June 26, 2014 11:22 AM EDT
      • UK/Ontario/Oregon
         
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      He just writ it hisself, too.

      tac
      Ottawa Valley GRS

    • June 26, 2014 11:24 AM EDT
      • UK/Ontario/Oregon
         
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      Tony Walsham said:

      Terry.

      You might like to get in touch with my UK agents.

      Either David Pritchard at LocoControl http://www.lococontrol.co.uk/page4.htm or Brandbright.

      Many thanks for that, Tony - I'll do that.  Brandbright are only around 80 miles east of me.  Dunno Mr Pritchard, tho.

      Best

      tac
      Ottawa Valley GRS

    • June 26, 2014 11:32 AM EDT
      • UK/Ontario/Oregon
         
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      Ah, Mr Pritchard is a sight further away from me than Amsterdam...

      Looks like it will be Brandbright in Holt.

      tac
      Ottawa Valley GRS 

    • June 26, 2014 2:01 PM EDT
      • Deer Park, Washington
         
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      tac Foley said:

      He just writ it hisself, too.

      tac
      Ottawa Valley GRS

      And in triplicate, too!

      ____________________________________

      Not only does my mind wander, sometimes it walks off completely.

       

      Some people try to turn back their odometers.  Not me.  I want people to know why I look this way.  I've traveled a long way, and some of the roads weren't paved.  Will Rogers.

    • June 26, 2014 2:21 PM EDT
      • Lunenburg , Massachusetts
         
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      TAC. Wow $4500. For a loco. I would be particular where and how I shipped it too. I don't own any loco near that cost. I think I would be afraid to touch it. My hats off to you.
      This post was edited by todd whittier at June 26, 2014 2:22 PM EDT
    • June 27, 2014 4:42 AM EDT
      • UK/Ontario/Oregon
         
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      Todd, back in the day when it was noo, it was pay the hit or do without.  It was one of the love-at-first-sight thangs, y'know?  With the LGB version all sold-out, and in a rather odd metric scale, too, I was feeling the lack of nice big NG loco for my teen track, and have always had a great love of the Colorado NG scene.

      It has been a great runner, and, strange to relate, runs at exactly the same speed with the same throtle setting as a pal's Bchmann version, as show in a few YouTube videos where we double head a nice long train.

      Since posting this original note, I've also located the receipt - the breakdown makes surprisingl reading - 

      Actual cost of loco in September 2002 - £2450.95 = $3823.48 [odd figure, don't ask how that was arriven at].

      Shipping & insurance - CA to UK - converted - $265,80.

      Customs duty payable on collect/delivery - converted - $580,80. :O

      So I underestimated it......

      Don't tell Mrs tac, right?

      And then....Bachmann came out with their version at around a quarter of the price.

      Best

      tac
      Ottawa Valley GRS

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