Lathe for turning wheels

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Patio
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Re: Lathe for turning wheels

Post by Patio » Wed Nov 27, 2019 1:00 am

Can you post a picture of the bottom of the compound. Some one on here most likely will have a good guess at it. When posting a picture, it is helpful to put a scale or a common object in the picture, to help others understand the size of things, in the picture. I often put a 6"caliper in mine.
Are you going to scrape in the ways of this machine?
Thanks for the posting the pictures of your progress.
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rkcarguy
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Re: Lathe for turning wheels

Post by rkcarguy » Wed Nov 27, 2019 11:24 am

When you crank the compound back, you can see the screw from underneath. It's stamped G110 is the only marks I could find. It has about a 2-5/8" diameter cylinder sticking out the bottom with a tapered ring cut into it so it can rotate 360*.
The picture I posted has a $1 bill in it for scale. Its about 4-1/2" wide.
My thought was to leave the ways smooth and put some sort of oil holding finish on the carriage, maybe add an oil cup and grind/drill in some oil passages.

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Dick_Morris
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Re: Lathe for turning wheels

Post by Dick_Morris » Thu Nov 28, 2019 3:11 am

The bench you put your lathe on will influence the lathe's rigidity. For the price of a bag or two of ready mix and maybe a little rebar or steel mesh you can have a rigid mounting surface with a lot of mass.

rkcarguy
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Re: Lathe for turning wheels

Post by rkcarguy » Thu Nov 28, 2019 2:58 pm

I have a very heavy 48" x 24" bench I built years ago with 4ea 600# locking castors on it. It's got 6 4x4 columns, top and bottom surfaces are two layers of liquid nails laminated 3/4" plywood, 2x6 perimeter frames and it has some cross bracing on one end and one side. I built it to unload engines and full 55 gallon drums out of my truck and it's the same height as my tailgate. I'm thinking if I line the top with a plate/drip pan it will be all good.
For quake protection, I have a couple pieces of uni-strut that I welded plates onto the end, and I lagged them into the underside of the 2x6 and the wall and then strapped the barrels down. I can use those to secure the bench to the wall if I have to.

rkcarguy
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Re: Lathe for turning wheels

Post by rkcarguy » Thu Dec 05, 2019 1:25 am

It looks like the tool post is going to fit the compound pretty good, I was worried it was going to be too small.
toolpost1.JPG
toolpost2.JPG

Glenn Brooks
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Re: Lathe for turning wheels

Post by Glenn Brooks » Fri Dec 06, 2019 3:09 pm

Ryan, do you have the bottom half of the compound tool holder? A local guy here in Seattle has something that might fit. Let me know and I’ll ask him. It would be a freebie.

Glenn
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Motive power : 1902 A.S.Campbell 4-4-0 American - 12 5/8" gauge, 1955 Ottaway 4-4-0 American 12" gauge

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rkcarguy
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Re: Lathe for turning wheels

Post by rkcarguy » Fri Dec 06, 2019 7:08 pm

I do not, it's not a bolted connection, it has a diameter protruding out the bottom with a tapered groove in it. Special bolts with rounded tips are threaded in and allow the compound to spin 360*, and the taper pulls it down solid when the bolts are tightened. I figure it's size and depth is probably machine specific to whatever lathe it came from, sorry I should post a picture of the underside.

Or are you talking about the tool post T-nut? It came with the tool post but must be milled to fit the compound.

Glenn Brooks
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Re: Lathe for turning wheels

Post by Glenn Brooks » Sat Dec 07, 2019 10:03 pm

Ryan, just looked a photo of the part - enlarged view of the base. It’s not a lathe compound mount, as I first thought. Looks more like an old shaper vise base of some sort...very much doubt if it would work- no swiveling center post and the the beveled ring /grove is absent. Appears to be a Frankenpart of some sort.

Here’s a pic. If you can use it, I certainly can pick it up Wednesday morning. I plan on heading up to Smokey point and Sedro Wooly on Thursday. Could head up toB’ham after that.

Glenn
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Moderator - Grand Scale Forum

Motive power : 1902 A.S.Campbell 4-4-0 American - 12 5/8" gauge, 1955 Ottaway 4-4-0 American 12" gauge

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MsChrissi
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Re: Lathe for turning wheels

Post by MsChrissi » Mon Dec 09, 2019 8:54 am

Just installed the Belfanti 6 bolt compound kit on a G0602Z Grizzly lathe to beef up the compound, well made and installs in a snap. Use this lathe for manual 2nd operations.

MsChrissi
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Re: Lathe for turning wheels

Post by MsChrissi » Mon Dec 09, 2019 8:55 am

Out of curiosity, how much material allowance (not part of the scaling for shrinkage) should be available on driver castings to machine off?

rkcarguy
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Re: Lathe for turning wheels

Post by rkcarguy » Mon Dec 09, 2019 11:25 am

I have always found when machining castings that I was better off to have a fair amount of material to remove, otherwise any remaining sand/grit and the sometime hard crust on the castings wiped out the tool quickly.
Being I am machining mine from laser cut plates, I leave myself at least 1/16th, or 1/8" on a diameter.

rkcarguy
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Re: Lathe for turning wheels

Post by rkcarguy » Mon Dec 09, 2019 11:29 am

Glenn Brooks wrote:
Sat Dec 07, 2019 10:03 pm
Ryan, just looked a photo of the part - enlarged view of the base. It’s not a lathe compound mount, as I first thought. Looks more like an old shaper vise base of some sort...very much doubt if it would work- no swiveling center post and the the beveled ring /grove is absent. Appears to be a Frankenpart of some sort.

Here’s a pic. If you can use it, I certainly can pick it up Wednesday morning. I plan on heading up to Smokey point and Sedro Wooly on Thursday. Could head up toB’ham after that.

Glenn
That's an interesting part, never seen such a thing. I agree, maybe a custom or modified piece for holding a casting while machined?
I appreciate the offer but wouldn't have any use for that.

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