Author Topic: Hemingway 1/12 Ransomes and May horizontal engine  (Read 44987 times)

Offline samc88

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Re: Hemingway 1/12 Ransomes and May horizontal engine
« Reply #90 on: October 16, 2025, 11:34:06 pm »
Bit of fettling and tidying up of the Ransomes engine ready for the weekend, mainly finally getting around to making proper fastenings to replace the temporary slotted screws that I had been using to hold it together
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Offline Roger B

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Re: Hemingway 1/12 Ransomes and May horizontal engine
« Reply #91 on: October 19, 2025, 07:54:11 am »
Excellent  :praise2:  You are at the transition from a pile of bits to an engine  :)
Best regards

Roger

Offline samc88

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Re: Hemingway 1/12 Ransomes and May horizontal engine
« Reply #92 on: October 21, 2025, 10:24:04 pm »
Thanks Roger! I'm quite pleased with how its coming together now.
I started on the eccentrics last night, beginning with the water pump one. I first centre drilled it in the lathe after facing and then moved it to the mill where I picked up the centre and drilled another one the required offset. I then put it back in the lathe, centred and turned the OD including the centre ridge, the backside I used a small grooving tool to machine. Recentred it and machined the boss complete with reamed hole. It still needs a keyway but I shall do that at the same time as the one for the flywheel. The kit has you make these from bronze with brass straps but I prefer the look of cast iron ones (plus I had a suitable piece to make them from in my box of bits)
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Offline samc88

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Re: Hemingway 1/12 Ransomes and May horizontal engine
« Reply #93 on: April 19, 2026, 11:08:47 pm »
Its been a while with one thing another, mainly cracking on with the 88" rebuild (I really need to update that thread) but fancied getting back into this tonight and made a start on the eccentric straps, a job I've been putting off a little bit. Marked out the basic shape and then machined the 4 halves to final overall size to give me datum edges so I can drill and tap the holes and shape them after boring on the lathe.
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Offline Chipswitheverything

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Re: Hemingway 1/12 Ransomes and May horizontal engine
« Reply #94 on: April 20, 2026, 08:49:18 am »
Some nice bluing and marking out there.  And the parts neatly prepared for the further operations ...    I've got all the usual marking out kit, as most of us probably have, but not so much of it seems to be done these days, by me included.  But somehow it always looks like a proper way of approaching the making of model engine parts, it links through to the tradition of the hobby.  Dave

Offline Sanjay F

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Re: Hemingway 1/12 Ransomes and May horizontal engine
« Reply #95 on: April 20, 2026, 04:55:39 pm »
Good to see you back working on the engine.... :popcorn: :ThumbsDown:
Best regards

Sanjay

 

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