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Other topics for members => General Woodworking => Topic started by: Part_Timer on April 14, 2007, 10:25:50 PM

Title: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Part_Timer on April 14, 2007, 10:25:50 PM
Well as most of you know I took a new position at my job first of the year.  Well it has been 12+ hours a day average ever since.  We are getting ready for a large upgrade toward the end of the year and things are getting a bit crazy.  To say I've been a bit stressed out is an understatement.

Well Burlkraft wrote earlier this week reminding me not to forget to have some fun every once in a while.  SOOOOOOO I took his advice, and today I finished up my lathe project.

I bought the lathe parts at an auction last summer for $12.  I had the DC motor and drive left over from another project that went toes up.  I had a contractor I deal with drill out one of the coupling halves and tap it for me.  I needed 1x8 left handed threads and I sure don't have a tap for left handed threads.

After several hours of drilling the holes in the wrong place   >:( >:(  :-X and getting things lined up I was ready to turn.

(https://forestryforum.com/gallery/albums/userpics/12445/lathe%20001.jpg)

(https://forestryforum.com/gallery/albums/userpics/12445/lathe%20002.jpg)

(https://forestryforum.com/gallery/albums/userpics/12445/lathe%20003.jpg)

Well things went well for a first attempt.  I need to get it bolted down to the bench, and I have to do a bit more work on the drive.  It's surging just a bit at lower speeds but I'll have to get on line and find a book.  I seem to have misplaced mine. ::) ::)  I also need to find a way to make my tail stock a live center mine isn't and it's about useless.

Steve thanks a bunch, I needed today worse than I thought.


Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: WDH on April 14, 2007, 11:34:41 PM
Just wait till you get that baby tuned up sweet!  What kind of wood is that?
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Part_Timer on April 14, 2007, 11:41:02 PM
That's a piece of cherry I pulled from the firewood pile.

The neighbors just cut a very small (8")walnut down in the fencerow, I'm going to go find a small piece and try it.
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: WDH on April 14, 2007, 11:46:24 PM
I have a piece of thick pecan, but it is probably too dry to turn or I would send you a piece.  Turning is definitely not one of my skill areas  :(.
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Burlkraft on April 15, 2007, 12:49:59 AM
Shoot me a pic of that tailstock...I may have a live center for ya.... ;D  ;D

Nice bowl....fer firewood...some of the best stuff comes off the firewood pile... ;) ;) ;)
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Daren on April 15, 2007, 08:24:45 AM
Quote from: Burlkraft on April 15, 2007, 12:49:59 AM

Nice bowl....fer firewood...some of the best stuff comes off the firewood pile... ;) ;) ;)

And he ain't just saying that. Turners, myself included, will always eyeball a firewood pile...just to see if there is a little gem hiding in there.

I think you found a good stress reliever P_T. I guy can chuck up a few scraps and spend some time getting his mind right. Playing (that is all I am capable of, just playing) with a lathe is almost hypnotic, watching the tools work the spinning piece. And when you are done, you have a nice little something to show for it. In your case a cherry bowl.
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Part_Timer on April 15, 2007, 10:40:59 AM
Thanks guys, I'm going to turn this afternoon also. 

WDH I'll send my address to ya.  I'm not afraid of turning dry wood.  You just have to sharpen more.  Send 2 and I'll have Katie turn something for you.  She is much better at it than I am.

Burlkraft.  I'll get a pic on line later tonight.  The problem is that the center for the tail stock is threaded on the inside with a spline on the outside.  It's not a MT of anykind.  I was thinking of taking it into work and turning the face off of it and taking one off of a MT and screwing it onto mine.  Bet that was clear as mud. :D

Daren, I'm going to glue up some cutoffs and see what happens.  Should be interesting.

This lathe will turn about an 8" bowl.  I might have a shopsmith coming this summer.  I'll have to do some mods but I think I might be able to turn a small table top with it.  We'll see how things go.  June is a long way off.
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Burlkraft on April 15, 2007, 10:46:37 AM
Quote from: Part_Timer on April 15, 2007, 10:40:59 AM
Burlkraft.  I'll get a pic on line later tonight.  The problem is that the center for the tail stock is threaded on the inside with a spline on the outside.  It's not a MT of anykind.  I was thinking of taking it into work and turning the face off of it and taking one off of a MT and screwing it onto mine.  Bet that was clear as mud. :D


Yer right...Let me know how that works out.....

I do have a threaded live center....I think it's left hand 1" 8tpi...but don't quote me on that.... ;) ;)
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Daren on April 15, 2007, 11:07:52 AM
Quote from: Part_Timer on April 15, 2007, 10:40:59 AM

Daren, I'm going to glue up some cutoffs and see what happens.  Should be interesting.



I have done glued up turnings before....now I back to digging in the firewood pile for wood to turn, it is much more relaxing  :D Things like this are more for testing your patience, not mellowing out. Just keep your tools real sharp. On glue ups the different grains all in one piece need sharp tools. Keep turning and posting pictures, it'll do you good.  8)

(https://forestryforum.com/gallery/albums/userpics/12216/vessel.JPG)


Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: low_48 on April 15, 2007, 01:56:26 PM
I think nearly all the manufacturers use a belt step setup to keep the DC motor speed up and reduce that surge. By changing belts you can get the speed you want and keep the motor in it's best torque range. I think only the Nova lathe uses a direct drive and they have some kind of "super motor" that is actually the head stock as well.
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Part_Timer on April 15, 2007, 10:59:26 PM
I don't have the room on my benches to use a belt setup, that's why the direct drive.  I'll get it ironed out, it'll just take a bit of time.  I can live with the surge for now.  It's sure better than no lathe at all.
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: turningfool on April 16, 2007, 05:16:16 AM
nice looking lathe...great stress reliever
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: low_48 on April 16, 2007, 05:55:29 PM
If space is a problem for the belts, why not go up? Can you get a step pulley on the outboard side shaft? They build up some bridging and mount the motor above the shaft pulley. It wouldn't have to be that tall. You will find the torque will be needed if you start turning any larger diameter stuff. It will be out of balance when you start and lower RPMs will be needed for safety. Nice start on the bowl turning.
Here's a link to a really nice sanding system for the inside of the bowls;
http://woodcraft.com/family.aspx?familyid=3740
The wave edge helps prevent any dig from the edge of the disc when you go up the side. I use this to 320 grit and it really makes the sanding an easy task.
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: getoverit on April 17, 2007, 08:22:31 PM
Awesome bowl there dude !

Be sure to save some room in the trailer for some southern exotic wood for turning when you get down this way. I'll be lookin for ya!
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Part_Timer on April 20, 2007, 09:22:57 AM
GOI

Save room on the deck for that Osage, I'll just deliver it instead of shipping it.  We'll see you second week in June.
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Engineer on April 20, 2007, 04:07:24 PM
If I managed to put my lathe back together, that would spell the end of anything else productive, like finishing my house.  I am being very careful to let the lathe sit in pieces while the house gets done, so that when we move in I can finally set it up and go back to turning.  I have a big chunk of boxelder and some curly black locust sitting in my basement waiting patiently (along with about 500 other pieces of random wood destined for roundness).
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Part_Timer on April 21, 2007, 10:03:48 AM
Yep I know what you mean.  Things have slowed down a bit here but I have a lot of school for work in the next week or two.  SO my excuse is that there is no point in starting something I'll just have to quit on in a couple of days. :) it's working for now but it's gona wear thin REAL soon I think.

How far do you have to go on the house yet?
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Engineer on April 21, 2007, 09:45:52 PM
Welll, don't wanna hijack the thread, so I'll just say a couple months.  We are finishing tile work tomorrow and then trim work and cabinets and we are done.
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Part_Timer on April 23, 2007, 09:21:03 PM
(https://forestryforum.com/gallery/albums/userpics/12445/stuff%20001.jpg)


I didn't feel like doing anything ambitious the other day so this was the product of a wasted evening  ;)  Black ash, walnut, and hard maple.

This is the largest piece I've tried to turn and them little tools I have just about didn't get it done.  I'm going to make some new scrapers for the inside and see how it works out. 

Turning the dry stuff sure is a lot bigger pain than the green wood but I do like the not having to dry it part. I have one to try and make out of cherry and maple but I'm not going to try till I get the new tools.  The little scraper rattles my teeth. :)


Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: WDH on April 23, 2007, 09:25:15 PM
Very impressive, Part_Timer.
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Burlkraft on April 23, 2007, 10:08:54 PM
Nice job Tom.....

I've seen the tools yer workin' with and I sure can appreciate what you've done there.... ;D ;D

Keep up the good work.... ;D ;D
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Patty on April 24, 2007, 07:36:38 AM
 8)  That is very nice!
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Part_Timer on April 24, 2007, 11:01:43 AM
Thanks every one. 

Burlkraft, can you suggest a good scraper or what ever for the inside smoothing a piece like that.  My 1/2" chisel just aint gona get it. ;) I have one of the Termites but it didn't like the changing grain.  Matter of fact I broke the large ring.
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: low_48 on April 24, 2007, 12:08:29 PM
I might add a couple of suggestions before Burlkraft jumps in. First the termite mostly excels in end grain and it really likes slow speed. You can't get better quality than a bowl gouge on the inside, especially on the more vertical surfaces. Take a scraper too far up the sides and it will get "grabbie" and tear a little on the side grain. I use a partial radius scraper on the inside bottom of the bowl. It lets me judge a fair curve better than a full radius scraper, or the bowl scrapers that come with a left or right grind. Those left/right scrapers have way too much grind on the side and they really want to get grabbie.



Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: leweee on April 24, 2007, 03:17:50 PM
A good box scraper platform helps cut down on chatter & catches. ;D

Box  Scraper Platform Link (http://www.leevalley.com/wood/page.aspx?c=2&p=46452&cat=1,330,49238&ap=1)
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: low_48 on April 24, 2007, 08:37:30 PM
I don't have the tools hanging over too far either. I have the big tool rest inside the bowl. Still don't like using scrapers up the wall. It's like using a cabinet card scraper across the width of a board. Yup, it'll remove wood, but I sure wouldn't call it a finish cut. A bowl gouge is still the tool to use.
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Part_Timer on April 24, 2007, 08:45:23 PM
Keep the ideas coming, I can build one of the rests for inside the bowl but I'll need to get a gouge.  The one tools I have are the ones that katie uses for turning pens.  they are just to small and vibrate to much.



Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Burlkraft on April 25, 2007, 06:18:10 AM
I agree with Low.... ;) A bowl gouge is the way to go. Scraper catches inside a bowl wall are hard on equipment...especially the fleshy kind..... ;D ;D  Hollowing tools are good for deeper stuff and most are just a cutting bar with small replaceable scraper tips. The smaller the scraper surface the smaller the catch, I guess is the logic. Woodcraft has Pinnacle tools. I picked up a couple of the 1/2" bowl gouges. They are cost efficient and work pretty well. The steel doesn't seem to hold an edge as well, but I wouldn't hesitate to recommend them. They are about $45.00 compared to $145.00 for a nice Crown gouge.. :o :o :o. A guy could buy some stock and grind his own profile and turn a handle....Nuthin' like home made tools..... ;D ;D ;D
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: metalspinner on April 26, 2007, 09:04:13 AM
Parttimer,
Have you tryed shear scraping with your scrapers?  Rather than having the scraper flat on its back, roll it to about 30-45 degrees and pull it toward you.  This is a very useful technique and gives you very fine little shavings.Just make sure the long edges of the blade all the way to the handle have a slight radius so a not to scratch up the tool rest.

QuoteA guy could buy some stock and grind his own profile and turn a handle....Nuthin' like home made tools.....   

This really is a great alternative.  Any of the machine tool supply houses sell flat HSS bar stock at much lower prices than off the shelf tools.
Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: Part_Timer on April 26, 2007, 05:43:08 PM
metalspinner

Nope haven't tried that but I will when I get a chance to turn again.

I like the idea of making my own tools, I'm going to try it and see what happens

I'm leaving for Canada on Sunday and will be gone for a week but I'm going to try and do a glue up before I leave so it's ready to try when I get back.


Title: Re: my new to me, cobbed together lathe AKA (thanks Burlkraft)
Post by: low_48 on April 28, 2007, 09:38:49 PM
Good idea on the shear scrape. I've only used that on the outside. Have you been able to control it on the inside? Also on the technique, make sure to keep the angle between the tool and the bowl wall less than 90 degrees. If you let it get "open" too much you will cut a thread. I use an Elsworth grind on the gouge and shear scrape on the outside with it. I roll it over and keep the outside edge of the flute off by about an 1/8". Then I drag it around the wall with the lightest touch I can. You can actually drag or push it, same quality of cut.