Could I turn tenons with this?

ArtGuy · Post by **ArtGuy** » Wed May 09, 2007 4:13 pm

...and also, Ken, how much would you charge for a set of custom jaws for stummel work?

LexKY_Pipe · Post by **LexKY_Pipe** » Wed May 09, 2007 4:34 pm

I wonder if Mimmo has any briar that will work!

achduliebe · Post by **achduliebe** » Thu May 10, 2007 8:23 am

John,

You could have the biggest tenons in the business!

Nick · Post by **Nick** » Thu May 10, 2007 8:39 am

WoW!

That is pretty fricking huge!

Post by **KurtHuhn** » Thu May 10, 2007 12:04 pm

Holy Cow, the operator stands *IN* the carriage!!

magruder · Post by **magruder** » Thu May 10, 2007 3:17 pm

John,

I thought that was what you made your stems on.

Steven Magruder Morrisette

ArtGuy · Post by **ArtGuy** » Thu May 10, 2007 8:40 pm

I bet you would have to run that on 220v eh?

Ray Cover · Post by **Ray Cover** » Thu May 10, 2007 10:53 pm

Some of those big ones run on deisel engines and some are HEAVY DUTY electric with serious transmissions.

THe one my dad ran before he retired was not quite that big. I think it had a a 72" swing and 28 feet between centers. It ran on a deisel engine. He made a lot of large things like 2 foot diameter hoist pulley shafts that they used to lift heavy equipment up and down the mine shafts with.

THat big lathe still only ran about .0005 out on the spindle.

They had a heavy duty hoist rigged up above it that they used to lift stock into the chuck with.

Dad often took cuts 1" wide and 3/8 deep in one pass with it. I can only imagine what the one in the picture would do. At that point it is very important to be able to grind chip brakers on your lathe cutters. A ribbon of steel 3/8 thick and 1" wide and turning purple as it peels off the bar would be a little hard to handle.

marks · Post by **marks** » Fri May 11, 2007 12:39 am

If I had written the caption for the photo, it would have been something like this....

152" Schwing!

Party on Garth!

Ray Cover · Post by **Ray Cover** » Fri May 11, 2007 8:45 am

Remember the last time you got your hand a little too close to the chuck?

Post by **KurtHuhn** » Sun May 13, 2007 10:05 pm

Ray Cover wrote: Dad often took cuts 1" wide and 3/8 deep in one pass with it. I can only imagine what the one in the picture would do. At that point it is very important to be able to grind chip brakers on your lathe cutters. A ribbon of steel 3/8 thick and 1" wide and turning purple as it peels off the bar would be a little hard to handle.

Now that sounds scary.

And fun.

More fun than scary though.....

Frank · Post by **Frank** » Mon May 14, 2007 1:01 pm

@John
I see you also had fun checking out that practicalmachinist forum. There's a wealth of useful machining info there. My brain is still roiling trying to remember much of it for future reference.

One of the forum posts convinced me it's worth the cost to get these belts for my shop machines: http://www.grizzly.com/products/h9816
I'm expecting them in by the end of the week.