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Author Topic: The Keystone Skimmer in 1/35th scale  (Read 4107 times)
Barney
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« Reply #15 on: November 07, 2016, 09:17:19 AM »

New chassis built (mistakes in measurements on first attempted ) winding drums and gear drive/flywheel completed - considering the Keystone skimmer was the JCB of the time not much information available but I think I have sorted the workings out plus a minor headache !!
Barney
 


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finescalerr
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« Reply #16 on: November 07, 2016, 12:23:52 PM »

I doubt I'm the only one looking forward to seeing your progress. -- Russ
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Ray Dunakin
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« Reply #17 on: November 07, 2016, 07:03:53 PM »

Fascinating!

What is the large gear made of?

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Barney
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« Reply #18 on: November 08, 2016, 09:58:05 AM »

Ray - The large gear is from an assortment of gears I sent for from Japan found them on EBAY 100 + assorted gears /cogs and pinions for £4:00 +£2:00 postage
I think they are mainly for the RC car bods some had Tamiya on them - the red one I used was on fine spokes with a large centre which I removed and glued it to a Grandt Line mining pulley (part no 3511) to create a fly-wheel / driver cog
Barney
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LesTindall
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« Reply #19 on: November 08, 2016, 10:15:37 AM »

hat "red one" (the gear teeth) looks looks just the item I need, excuse me being pedantic but what is the diameter?

Les
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Barney
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« Reply #20 on: November 08, 2016, 02:48:46 PM »

Les - The red gear I have used is 35mm dia' this works out at 4ft in 1/35th scale
All measurements were taken off Photos using a grid system of 4 examples of a Keystone skimmer and Keystone drilling machines the cog drive gear was between 3ft 6in to 5ft so I went for the middle some have an extra bit of weight in them I presume to give it a flywheel effect all had different castings patterns on the spokes and centre fixings
Barney
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Barney
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« Reply #21 on: November 08, 2016, 03:06:54 PM »

Ray - I forgot to say the gears are plastic normal styrene glue works well all the others appear to be nylon
bottom left shows one with the centre and the spokes removed - there was even a few brass ones in the assortment a bargain I thought !


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