Potty Over Crank Wall Engine

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JimM:
That's a cracking engine Stew, it looks and sounds great especially on the slow tickover - I'd be well chuffed if I could make something half as good one day

Would JB Weld be any good for filling the corners ? It's a bit sticky/messy to work with but dries rock hard and is the right colour (sort of)

Cheers

Jim

sbwhart:
Thanks John

I've gone away from my origonal drawing quite a bit when I was doing the build all the main features are their but as the build progress I saw or learn't better way of doing things, so at some point I will ammend the drawings and post them up her.

I took the engine to our club open night where members showed off their work and gave a little talk on the project and it got lots of interest and thats from a club that is very much locomotive based and a number of members asked for compies of my drawing even with the warts.

Thanks very much Jim I've just ordered some milliput from fleabay so when I get to do the fillets I'll let you all know how I got on with it.

Stew

ksor:

--- Quote from: sbwhart on March 13, 2011, 08:07:10 PM ---Cast iron is real filthy stuff to work with, looks like I can join John's black hand gang. :D

Stew

--- End quote ---

Hi Stew !

I think it's a "little" dangerous working with a wedding ring - I remember seeing some horrific images where the meat was pulled from the bones of a finger because of such a ring.

But oh, what nice peace of work you do !

sbwhart:
Hi Ksor

Thanks for the reminder I've seen pics of fingers pulled off due to rings also :-not nice.

And thanks for your kind comment on my work.

Stew

sbwhart:
Well, time to pic this back up again by making a start on the governor in fact I've been agonizing over it for a couple of weeks for some reason I've been full of self doubt and uncertainty, I've drawn and redrawn the governor up 1/2 a dozen times changing my mind as to type and size, eventually I gave myself a good talking too:-just get on with it and stop p******g around.

So her we are first bit the little spinning things that hold the arms, making small parts can be a bit of a pain if you don't get the machine sequence right, you can end up with nothing to hold onto.

So started off on the lathe and machined out the outer shape and reamed the bore out 3mm, I'm making the two out of the same bit of bar one at each end.

Her they are one at each end

Then over onto the mill gripped in the four jaw self centering chuck, centre the chuck on the centre line of the quill, zero the dials, then with a 2mm slot drill, mill the slot across the end, then with a bigger end mill, mill flats either side, flip it round and repeat on the other end.

Then over to the vice first set the quill on to the centre of the bar, with a ruler or straight edge in the slot grip it level in the vice, index to position and drill through 0.8mm for the pivot pin.

Back onto the lathe and part them off, doing them this way you had the bar to grip onto.

Her they are on a length of 3mm stainless that will be the spindle with a bit of 0.8 piano wire through pivot hole.

Stew

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