Author Topic: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine  (Read 27818 times)

Offline Tennessee Whiskey

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #120 on: March 21, 2016, 10:45:14 PM »
If I was going to dream and wish for the ultimate shop accessory,  it would be a complete set of every kind and size of 5c collet know to man in an antique oak case.  And whilst dreaming,  it would be really sweet if they were all within +/- .0001" runout  :facepalm:9

Cletus

Offline Flyboy Jim

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #121 on: March 21, 2016, 11:43:05 PM »
5C collet blocks will get a lot of use.  Note that the set usually doesn't come with a pin wrench for tightening the nut, so order one with it.  They do come with a cam-operated nut, but I found this generally useless.  Of course you also need a set of collets to use with the blocks.

I've never used them before, but those collets/blocks look very handy. Do the different sizes handle a range of stock, or just that nominal size? Looks like they come in sets with different increments from one size to the next, any tips on choosing? Any brands to avoid?

Thanks!

Chris,
Have you seen this website for after market Sherline ER collet headstocks and collet systems:  http://www.sherlinecollet.com/index.htm

Looks like money will solve the problem.................lots of money!  :shrug:

Jim

Sherline 4400 Lathe
Sherline 5400 Mill
"You can do small things on big machines, but you can do small things on small machines".

Offline crueby

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #122 on: March 22, 2016, 12:47:04 AM »
5C collet blocks will get a lot of use.  Note that the set usually doesn't come with a pin wrench for tightening the nut, so order one with it.  They do come with a cam-operated nut, but I found this generally useless.  Of course you also need a set of collets to use with the blocks.

I've never used them before, but those collets/blocks look very handy. Do the different sizes handle a range of stock, or just that nominal size? Looks like they come in sets with different increments from one size to the next, any tips on choosing? Any brands to avoid?

Thanks!

Chris,
Have you seen this website for after market Sherline ER collet headstocks and collet systems:  http://www.sherlinecollet.com/index.htm

Looks like money will solve the problem.................lots of money!  :shrug:

Jim

Nice stuff, but you are right, very pricy!  I was thinking of the collet blocks for workholding in the mill, primarily.

Offline sshire

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #123 on: April 16, 2016, 07:11:31 PM »
That's All Folks

After cloistering myself in the shop for the last few weeks, Iím calling the Coventry ďClose ĎEnufĒ

Iíll be packing it up for itís trip to N.A.M.E.S. next week.

The Coventry was not an easy build for me. Sure making the parts was straightforward: One part at a time and pretty soon you have enough parts for a running engine. The sticky part is the the mechanism for the valve movement has many parts that all are moving in concert and in different directions and on different planes. Throw in a variant of a Scotch Yoke and the timing is very, very particular. I had removed and replaced the steam chest cover so many times while setting the timing that I finally made a Plexi cover.

The air intake is plumbed under the base and up through the ceramic tile. Iíve gotten quite proficient at using a diamond core drill on the tile: Iíve also got a nice collection of broken tiles  in a box.







The next project begins as soon as Iím back from N.A.M.E.S.

Iím quite sure that youíll be quite thrilled to see yet another Monitor build.
Best,
Stan

Offline Don1966

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #124 on: April 16, 2016, 08:04:09 PM »
Simply lovely Stan, great thread to follow buddy. I just love all those excellent photos through the whole process.......... :praise2:

 8)
Don

Offline zeeprogrammer

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #125 on: April 16, 2016, 08:12:53 PM »
It's a beauty Stan.
Video on its way?

Wish I could be there at N.A.M.E.S.

Probably once I retire. Oops...there it is again.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
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Zee-Another Thread Trasher.

Online Kim

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #126 on: April 16, 2016, 08:13:34 PM »
Congratulations Stan!  You've made a beautiful engine.  Wish I could see it at Names, but that's certainly not in the cards for me. Many people will enjoy seeing it though, you can be sure of that!

I'll enjoy another Monitor build!  May even do one myself someday.  Can't have too many engine build threads :)
Kim

Offline zeeprogrammer

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #127 on: April 16, 2016, 08:18:36 PM »
Oh I missed that part. Thinking of a Monitor Stan?
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
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Offline sshire

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #128 on: April 16, 2016, 09:47:05 PM »
Thanks everyone.
Zee
The metal is in the shop. Drawings printed large. Recipes ready in the kitchen.
Best,
Stan

Offline crueby

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #129 on: April 16, 2016, 11:26:22 PM »
Thanks everyone.
Zee
The metal is in the shop. Drawings printed large. Recipes ready in the kitchen.

The Coventry came out awesome!
And another Monitor to watch - excellent!!   :popcorn:

Offline zeeprogrammer

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #130 on: April 16, 2016, 11:41:57 PM »
Let's see...that makes 4 Monitors, no?

Mine. Started long ago, yet to be completed.
Chris. Started and completed.
Bruce. Started and no doubt will be completed before mine.
Stan. Yet to start but no doubt will be completed before mine.

Sigh.

Hm...Seems like there's one or two other people thinking about this engine.

Kudos to Julius. He's got to feel pretty good about this.
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline Dave Otto

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #131 on: April 17, 2016, 01:11:08 AM »
Beautiful engine Stan!

Looking forward to seeing in it person next week.

Dave

Offline Tennessee Whiskey

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #132 on: April 17, 2016, 02:58:29 AM »
Lovely job Vern  :ThumbsUp:  Monitor eh, wouldn't be influenced by the planned equipment purchases would it  :stir:

Cletus

Offline joe d

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #133 on: April 17, 2016, 03:14:52 AM »
That sure turned out nice, Stan.  :ThumbsUp: :ThumbsUp:

Looking forward to the monitor build.

Joe

Offline sshire

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Re: Lady Godiva Rides Again - Roy Ozouf's Coventry Engine
« Reply #134 on: April 17, 2016, 04:12:09 AM »
Well damn, Cletus. I don't see how the new set of open end wrenches in 1/32" increments will help :lolb:
Best,
Stan