Point lever

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ge_rik
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Point lever

Post by ge_rik » Sun Oct 21, 2018 7:39 pm

Having just installed some new sidings on the layout - and being particularly dissatisfied with LGB point levers, I decided to have a go at manufacturing my own. A couple of LGB sleepers, a piece of brass sheet, a piece of brass rod, a short length of Peco rail and €0.04, a few nuts and bolts, a bit of solder and the occasional swear word et voila!
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I appreciate that it's a bit rough and ready at the moment - this is the prototype. Hopefully Mk2 will look a bit prettier.

Rik
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Re: Point lever

Post by tom_tom_go » Sun Oct 21, 2018 8:06 pm

It looks perfectly narrow gauge to me!

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Clockwork
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Re: Point lever

Post by Clockwork » Sun Oct 21, 2018 8:54 pm

Rik I’m sure MK2 will be a lot more tidier but I like what you have modelled with the prototype. :thumbright:
Kevin :thumbleft:

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Re: Point lever

Post by pandsrowe » Mon Oct 22, 2018 8:53 am

It may be be a bit rough and ready but that's what development is all about, I must say you never cease to amaze me with your new projects some of which seem to appear overnight. One thing does puzzle me though, is there a reason for the angular movement of the lever? In one direction it seems to be around 20 degrees and in the other the lever is nearly horizontal, or is this just part of the prototype development in which case I'll shut up.
Phil

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Re: Point lever

Post by Lonsdaler » Mon Oct 22, 2018 9:18 am

Defacing coins of the realm? A capital crime, Surely? :lol:
Very nice work Rik :thumbup:
Phil

I am not young enough to know everything anymore...

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ge_rik
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Re: Point lever

Post by ge_rik » Mon Oct 22, 2018 9:27 am

pandsrowe wrote:
Mon Oct 22, 2018 8:53 am
........ One thing does puzzle me though, is there a reason for the angular movement of the lever? In one direction it seems to be around 20 degrees and in the other the lever is nearly horizontal, or is this just part of the prototype development in which case I'll shut up.
I need to work on the geometry of the linkage. The link at the base of the arm is restricted in one direction but not in the other, so that asymmetric movement was the only way I could get the full throw on the blades. I've figured a way to get a longer throw in both directions, so mk2 should be more evenly balanced.

I also need to fiddle with the mass of the balance weight. Ideally, I'd like sufficient for it to hold the blades in place, but no too much that the flanges can't pass through from the tail of the point - like the real thing.

Rik
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Re: Point lever

Post by ge_rik » Mon Oct 22, 2018 9:33 am

Lonsdaler wrote:
Mon Oct 22, 2018 9:18 am
Defacing coins of the realm? A capital crime, Surely? :lol:
Ah but which realms? I noticed that one cent sported an Irish harp, but not sure about the decoration on the others. This version made use of the odds and ends I had knocking about; some 14mm dia brass rod is on order for balance weight on the next version(s).

Perhaps I should be hoarding my Euros .......

Rik
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Re: Point lever

Post by ge_rik » Mon Oct 22, 2018 9:40 am

pandsrowe wrote:
Mon Oct 22, 2018 8:53 am
......... your new projects some of which seem to appear overnight........
Funny you should say that. This one occurred between mowing the grass and tea time (phase 1) - and then between washing-up and watching the last part of serial on TV at 9.00pm (phase 2) :D The planning happened during the lawn-mowing, when I picked up a couple of discarded sleepers left over from recent tracklaying ...... an Aha!! moment.

Rik
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Re: Point lever

Post by IrishPeter » Mon Oct 22, 2018 3:26 pm

I know what you mean by 'Aha moments,' though the original garden railway started with my wife having one. Her's was 'small house with a big garden equals model railway outside.' So they can be dangerous...

I like the lever. It looks a lot like the old WDLR throws, which I suspect were a Hudson design in origin. I have occasionally felt like having a go at the spinning top design the Isle of Man Railway used before it was gentrified in the noughties, which would be the most appropriate levers for the Skebawn and Castleknox.

Cheers,
Peter in Va
Traffic Pattern? What pattern? Spuds out; grain in, but cattle, sheep and passengers are a lot less predictable.

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Re: Point lever

Post by GTB » Mon Oct 22, 2018 4:12 pm

ge_rik wrote:
Mon Oct 22, 2018 9:27 am
I also need to fiddle with the mass of the balance weight. Ideally, I'd like sufficient for it to hold the blades in place, but no too much that the flanges can't pass through from the tail of the point - like the real thing.
I'll be interested to see how you go with making the point blades trailable.

One of the turnouts on my planned triangular junction won't be easily accessible when the bridge is in place. I've been contemplating how to make it trailable so I don't have to install a remote lever, but haven't cut metal yet.

Regards,
Graeme

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Re: Point lever

Post by tom_tom_go » Mon Oct 22, 2018 4:47 pm

Graeme, does the point you are installing need to reset the same way each time? If so, just use a spring or a piece of wire to allow it to reset each time.

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ge_rik
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Re: Point lever

Post by ge_rik » Mon Oct 22, 2018 6:00 pm

Version 2
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Happier with the look of this one. I've fitted it to a Piko point which seems to have a shorter throw than the LGB equivalent. The lever now moves far less and so I think I will need to lower the pivot, to shorten the distance between it and the linkage to the tie bar, thereby increasing the amount of throw needed so the weight gives a bit more resistance and holds the blades more tightly against the stock rails. Not tried trailing stock through either yet, so not sure whether I've got the resistance right - maybe some fine tuning needed.

Rik
PS - I've run out of 1c Euro coins so will have to wait until the brass rod arrives before I can continue with development.
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Re: Point lever

Post by tom_tom_go » Mon Oct 22, 2018 6:15 pm

I know you like making stuff yourself Rik but I have a few of Cliff Barkers point levers and they are very nice and can be modded if required:

http://www.cliffbarker.me.uk/NarrowGaugeTrack.html

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Re: Point lever

Post by ge_rik » Mon Oct 22, 2018 11:12 pm

tom_tom_go wrote:
Mon Oct 22, 2018 6:15 pm
I know you like making stuff yourself Rik but I have a few of Cliff Barkers point levers and they are very nice and can be modded if required:

http://www.cliffbarker.me.uk/NarrowGaugeTrack.html
Thanks Tom
Not bad at £6.50 each. Might be worth a try.

Rik
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Re: Point lever

Post by FWLR » Tue Oct 23, 2018 8:08 am

Genius at work again…..
Rod

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