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Bulldog

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Posts posted by Bulldog

    Wright writes.....

    in Modelling musings & miscellany

    Posted

    3 hours ago, Compound2632 said:

     

    That site has me twitching - not updated since 2015 and the link to Midland Railway Centre does nothing. Not the sort of site that inspires one with confidence to part with one's money.

    Received an order recently,1mm x1mm brass angle. It is milled section and 500mm length.

     

    • Informative/Useful 1

    Megapoint Controllers

    in Permanent Way, Signalling & Infrastructure

    Posted

    I have been using the Megapoints kit for a number of months now and generally I am very happy with what it does for me. The one area I have an issue is maintaining the servos position underneath my baseboards. I have used the aluminium conduit approach that Dave Fenton suggests but find that after a period of use, the servos are prone to small movements which ultimately results either in them losing alignment and failing to work or, on occasion, actually falling out of the conduit.

     

    A friend told me that MERG produce a bracket of some description which holds servos in place more securely; has anyone got any experience of using these or anything similar?

     

    Any guidance gratefully received

     

    Rob

     

    These will be worth a look.

    www.ebay.co.uk/itm/0-00-009-N-Gauge-Servo-Brackets-Point-Control-Laser-Cut-Kits-x-10/122780575819?hash=item1c964ae84b:g:hFwAAOSw3v5Ynjx5

    Megapoint Controllers

    in Permanent Way, Signalling & Infrastructure

    Posted

     

    I was never happy with the ally channel option, especially when on my first trip out all of the servos on the bottom board fell out, then this popped up in my Facebook feed.

     

    http://www.alurailtech.co.uk/home.html

     

    An aluminium bracket that the servo bolts on to for £2.50. Not the cheapest option but works out a cheaper option than trying to produce my own 3D printed thing. It also had channels to locate the micro-switches for throwing frogs or signals.

     

    No connection other than a happy punter.

     

    Was a bit gutted that after having a chat to Dave yesterday, he said I couldn't have my relay driver board because he had sold so many of them. Just before he left he threw an extra box of them in the car but said he didn't expect to sell that many. I knew I should have pre ordered them. It is due to be posted out today so can't complain really.

     

    Alistair

    Another alternative servo mount

    http://www.ebay.co.uk/itm/0-00-009-N-Gauge-Servo-Bracket-Point-turnout-Control-Laser-Cut-Kit-Peco-/122128749218?ssPageName=STRK:MESE:IT

    • Like 1

    Wright writes.....

    in Modelling musings & miscellany

    Posted

    The recent discussion on crank angles, which I think I may have been a starting contributor, has been really useful in that the outcome does seem to reinforce my initial comment about Laurie Griffin's inside motion kit for the Midland Compound.  As long as the two outside cranks are offset 90º, as in the prototype, it really doesn't matter what angle I put the third crank at, as the electric motor will simply move the con/piston rod in and out of a hole in a frame spacer.  But logically the third crank should be as in the prototype, that is bisecting the 270º and that is where I will Loctite it into position.

     

    And, while doing some mindless chore this morning I remembered that there is one example in real 1:1 scale life of a steam engine's motion being retro-driven by an electric motor.  Back in the 1960s my favourite locomotive, 46235 City of Birmingham, was installed in the Birmingham Museum of Science and Industry on Newhall Street.  Every hour or so the huge locomotive was moved up and down its short track, driven by a hidden electric motor (rumour has it that is was a scaled up Triang X04).

    I seem to remember, it was an electric floor mounted winchwith cables and pulleys?

    I always went for a look in the 70's after a bit of train spotting at New street.

    • Like 1

    Wright writes.....

    in Modelling musings & miscellany

    Posted · Edited by Bulldog

    What a sad loss that museum in Birmingham was - spent many a happy hour there. I remember my first sighting of 'City of Birmingham' - it was/ (still is) ?@&£'#### HUGE!!! Even the wheels were twice my size when I first saw it!

    Can someone remind me where everything from there was move to?

    It's all here  http://www.birminghammuseums.org.uk/thinktank

    I liked Newhall street, also spent many happy hours there.

    Great Western Covered Footbridge Kit

    in Kitbuilding & Scratchbuilding

    Posted

    ...which reminds me that when Peter K (or was it Kemilway?) released an all-etched GW footbridge kit some decades ago, the asking price was about 30 quid. It's still in the Peter K list at 125 quid, though good luck with trying to order one, given the ancedotes about the near-lifetime waits for kits to be delivered!

     Peter K in the earlier lattice style, reviewed in model railway journal No 40 by Guy Williams.

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