Author Topic: The Elephant has left the room  (Read 8641 times)

Online Jo

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Re: The Elephant has left the room
« Reply #120 on: July 15, 2017, 07:26:30 AM »
I have had a couple of photo's in response to my Anzani queries:

It was much too easy  :facepalm: drive the distributor off the cam shaft and put only 3 take offs on the back of the distributor using the appropriate three out of five 144 degree positions (one at the top and two at the bottom - not the top side ones).

The six cylinder also only needs the extra three distributor positions added no change to the gearing which would have been needed for the original magneto but not a distributor.

And one I came up with  :naughty:: The original Les Chenery design used 32DP and 40 DP gears. with a pair of 32DP 20/16 for driving the cam, these could be replaced with a pair of 40DP 25/20 gears which are both finer cut and means only one set of gear cutters are needed.


Clarkson latest: I will be cutting the bevels  :(

Jo
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Online Jo

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Re: The Elephant has left the room
« Reply #121 on: July 16, 2017, 10:10:21 AM »
 :headscratch: I can't find the crank/cam gears anywhere on the Zimmerman drawings. Reading through SIC it would seem they should be 24DP gears of 24 and 48 teeth respectively. The distributor is driven directly off the camshaft so no more needed there... The spur gears in the oil pump are 48DP  :wallbang: and I still don't have 48DP cutters  :ShakeHead:


Onto the next set of castings: another 4 cylinder engine but I am sure there is at least one 8 cylinder one hiding somewhere around here  :naughty:

Jo
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Offline philjoe5

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Re: The Elephant has left the room
« Reply #122 on: July 16, 2017, 02:31:46 PM »
Jo,
Sometimes the elephant comes back bigger and better - have a speedy recovery

Cheers,
Phil
If you pick up a starving dog and make him prosperous, he will not bite you. This is the principal difference between a dog and a man.  - Mark Twain

Online Jo

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Re: The Elephant has left the room
« Reply #123 on: July 16, 2017, 02:39:25 PM »
That one would need more than a 8" incision to get out   

I am not out of the woods yet: I will have it confirmed this coming Friday if Surus may have any cancerous  :hellno: associations :noidea:  :paranoia:

Jo
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Offline Stuart

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Re: The Elephant has left the room
« Reply #124 on: July 16, 2017, 07:21:27 PM »
Every thing crossed here Jo
My aim is for a accurate part with a good finish

Offline Walsheng

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Re: The Elephant has left the room
« Reply #125 on: July 16, 2017, 09:27:45 PM »
That one would need more than a 8" incision to get out   

I am not out of the woods yet: I will have it confirmed this coming Friday if Surus may have any cancerous  :hellno: associations :noidea:  :paranoia:

Jo

Been there and the waiting is not much fun!  Lucky for you to have a casting or two to fondle.
I am pretty sure I remember the doctors telling me cast iron is good for recovery.
But then again, they "said" put ice on it and I "heard" eat ice cream!
Good luck.

John

Online Jo

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Re: The Elephant has left the room
« Reply #126 on: July 17, 2017, 08:59:18 AM »
Thanks John/Stuart,

I tried a little casting fettling this morning, not much it causes twinges  :disappointed:


The second batch of model castings have moved off of the spare bookshelf and onto the fondling table  :embarassed:

Jo
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Online Jo

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Re: The Elephant has left the room
« Reply #127 on: July 17, 2017, 10:43:09 AM »
The Aeronica drawings show separate cylinder sleeve and liner - caused by Les' original desire to have an Ali casting as the finny bit. Whereas the original had steel or CI finny bit. Looks very do able as a single part  :thinking:


There are the wrong number of fins on the cylinder head castings  :facepalm: Joe, Joe whatever where you thinking you copied Les' drawings without checking.

Jo
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Online Jo

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Re: The Elephant has left the room
« Reply #128 on: July 18, 2017, 02:01:57 PM »
Swarf, Swarf  :whoohoo:

<a href="http://www.youtube.com/watch?v=6bWyhj7siEY" target="_blank">http://www.youtube.com/watch?v=6bWyhj7siEY</a>

Now I will need to go and have a lie down  :facepalm:

Jo
« Last Edit: July 18, 2017, 02:08:33 PM by Jo »
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Online b.lindsey

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Re: The Elephant has left the room
« Reply #129 on: July 18, 2017, 02:19:34 PM »
Happy you are feeling up to even a short bit of shop time Jo!

Bill

Online Vixen

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Re: The Elephant has left the room
« Reply #130 on: July 18, 2017, 02:24:25 PM »
Many happy returns Jo.

Pleased you have made even a short return to the workshop.

There is nothing better to aid recovery than a little metal therapy.

Mike
It is the journey that matters, not the destination

Online Tennessee Whiskey

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Re: The Elephant has left the room
« Reply #131 on: July 18, 2017, 06:46:05 PM »
Though these aren't studs, I was curious if now wouldn't be the perfect time to stock up on a few hundred studs on C2 :thinking:

Big E

Offline Jasonb

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Re: The Elephant has left the room
« Reply #132 on: July 19, 2017, 07:26:05 AM »
I said very similar to Jo yesterday when I suggested she found some light work for C2 and the little sexy mill. I then had second thoughts as there seems to be a trestle table full of castings stopping Jo getting to the mill :shrug:

J

Online Jo

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Re: The Elephant has left the room
« Reply #133 on: July 19, 2017, 08:11:33 AM »
Thanks Guys  :pinkelephant:

Its the twisting of my tummy that I have to be careful of :( Those two mounting studs for the 5A and Swan reversing gear were a bit of practise.  I found that I can turn Mr Silky's handle ok, moving his tailstock is challenging but turning the die causes the most use of the muscles that I am supposed to be resting.

But I have been spotted playing in the workshop and have someone coming to check up on me today.. I wonder if I can get an hour in the workshop before my spy turns up  :noidea:

Jo
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Offline Stuart

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Re: The Elephant has left the room
« Reply #134 on: July 19, 2017, 10:02:21 AM »
Jo
We have eye balls in the sky ( no not the police being naughty with there helicopter) but nice quite drones watching for you in the workshop and texting mum   :lolb: :mischief: :mischief:

You take care a few more days will not make any difference

Stuart

My aim is for a accurate part with a good finish