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Old 01-22-2009, 03:49 AM   #11
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Thanks guys!....

Gary
The Plate with all the holes in it is just an aluminum plate with a bunch of holes in it
They are tap drilled for 1/4-20....when I need a hole threaded, I just tap it.....I'm lazy.

It was intended to be sacraficial, but I try not to cut that one....it's handy.

The face plate is 10" diameter and has a 2 1/4-8 spindle nose so the gapping hole at the center makes mounting smallish work problematic. I just mount this little plate on the big face plate for convienence. I have a fist full of small straps and such that help out here.

There happens to be a 1/4-20 hole darn near perfectly centered with respect to the lathe center....which is also convienent.

The non drilled plate is a piece of jig plate from the scrap box. I bored it for a close fit with the crankcase bore using a bushing to create a male spigot on the plate. Now I can mount the fixture where ever I want on the faceplate or mill and have at it, and it won't move around much. I'll hang on to these fixtures until I'm done...then back into the lucky box they go!

These fixture plates are just that.plates..normally I square them up, the second one I didn't, though I may still. They make it easy to float around the machines with different set ups and be able to pick up the work again, especially with a mill vice, and they're simple things to make and use.

That set up took a bit of reading and noodling so that all that could be done in one setting on the lathe ( cover, gear case and block all bored at the same set up to maintain concentricity. ) I wish I could say I thought of it but I think ETW's writtings speak of this set up in many places....its just adapted to my lathe and tooling.

I like faceplate set ups as they are very versitle and quite ridgid once set......though I may be in the minority there.

Bob, I think it will be .....My kids are excited...which is the point of this exercise...My son really likes diesels....this is as close as I think "I" can make....
Dave



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Old 01-22-2009, 03:58 AM   #12
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GMAC

When the book comes....fill me in on what I'm doing wrong huh!

We're all learning...even those of us who have been doing it a while.....

Dave



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Old 01-22-2009, 05:19 AM   #13
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Default Re: MY Seadog

Dave;
Thanks for the additional details. As for the book - I'm beginning to find out that this forum is much better than any book.....

Cheers
Garry

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Old 01-22-2009, 12:27 PM   #14
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As a newbie, I am awestruck by this project. Your setups are a real eyeopening experience as how to hold parts on the faceplate.

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Old 01-22-2009, 01:43 PM   #15
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Dave, that has got to be the most engine work I have ever seen done on just a lathe. Looks GREAT.
I am curious about that bolt making setup you have. Can you explain that a little bit?

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Old 01-22-2009, 04:03 PM   #16
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As others said, real nice fixturing and progress,
Shop looks well equipped too!
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Old 01-22-2009, 04:25 PM   #17
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Thanks guys!

The thing on the tool post is a filing rest and mounts to my AXA tool post and utilizes the dovetail and a micrometer head for height adjustment. These are common on clockmakers lathes.....this one is on steroids and I really like it.
the indexer on the lathe

The filing rest attachment


A small hex head bolt like that shown can have the hex cut in a minute or two with a file.
The rollers are hardened drill bushings on spindles with a shoulder. I us a safe edge file.
Works well

As to set ups on the faceplate, thats what makes a faceplate so versitile. A word of caution. BE CAREFULL!
Turn the work by hand one revolution before starting
Start at low spindle speed
Keep you hands and clothes away!
Don't stand in the path of the plate when you start up the lathe!
Make sure your set up is strapped down tight before you start!
Make sure the faceplate and work are balanced...even just close to balanced....

Do this and life is good......do it not and you may have a big problem! NOTHING throws parts better than a faceplate!

Dave

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Old 01-22-2009, 09:33 PM   #18
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Default Re: MY Seadog

Hi Dave welcome aboard.
Lovely work and workholding. One concern..........
The file in the picture DOES have a handle on it doesn't it

Kind regards

Malcolm

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Old 01-22-2009, 10:54 PM   #19
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Thanks for the explanation Dave. I think you have done a lot of work ahead of time, making tooling and fixtures, to make the process look easy. Looking forward to many more of your secrets & tricks of the trade.

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Old 01-22-2009, 11:17 PM   #20
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Hi Malcolm,

Sorry Malcolm, no it doesn't...but it will.

The good news is the lathe wasn't turning when I used the file.....It was just being an indexing head.

Putputman,

Yes I have made some tooling for the lathe, I have been working at that for a while, the tooling I make is specific to the kinds of stuff I like to make, not just engines. I have twin 6 year olds, and time is precious. I take some of that time and make tools that help me be productive....I am just about done with the lathe, I need to make some tool holder and collet racks. Its taken a couple of years to tool and or make tools.....I enjoy the making them as much as using them too!

I have several other specialized tools that I bring to bear....I am sure they will show up as I progress so I won't stray OT now



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