Router Lathe - Page 2 - Router Forums
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post #11 of 22 (permalink) Old 06-17-2019, 04:12 AM
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Hentie,
Makes sense, although it may be a bit tricky to adjust bit height with the follower under the template; will have to think about it.
An alternative would be to replace the existing (on the front of carriage) follower with a longer one, possibly bent so that the tip it is at the same level as the bit. There will still be some pantograph effect, but perhaps less so, and it will allow you to mount an existing turned object to use as the template. You will need to make a cradle to mount the template/existing object.

Incidentally, templates are not that hard to make, but with all the sanding and smoothing, only worth it if you are planning on making a number of identical objects. My Elektra Beckham lathe has a special holder to hold Masonite templates, for use with a copying chisel. Even came with a few Perspex templates, but I prefer free-hand.

Larry, attached are some photos of a standard lamp I made 30 years ago. It has developed a lean over the years, so ignore that. It was really a sampler, with a bunch of unpracticed mistakes. The close-ups show a “pineapple” surface treatment, with a number of irregularities, some caused by me, some by a loose cable connection, and some by the tool path of the bit. The last is more apparent on the spirals of the three-start segment, where one side of each spiral is not identical to the other side. The fluting and coves are fine.
Incidentally, the wood is iroko, before I knew about its toxic properties. Fortunately, at that time I was forced to work outdoors, and wear a surgical mask, so hopefully no harm done. But great wood to work with.

Rick, beautiful work. Which bit did you use for the ropework ?
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post #12 of 22 (permalink) Old 06-17-2019, 10:45 AM
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I'm like Tom, no call to use one. Look on line and there are free plans, and videos, on making and using one. Don't think any will do spirals, but never looked either.

I hadn't looked at any plans, builds, in a long, long, time. So did now. And found some that will cut spirals. If you want a router lathe, you might be well advised to see what is on line in the way of free plans to make one.

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post #13 of 22 (permalink) Old 06-17-2019, 11:47 AM
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There is a plan to make quite a sophisticated one, using bicycle gears and chain, in Bill Hylton’s Book, Router Magic (published by American Woodworker, before you guys let it die). But one would have to want to do quite a bit of spiral work to make it worth the effort, in my opinion.
I had planned to make the spindles for an internal staircase using the router lathe, but then found that imported ones in Scandinavian pine, were available at an affordable price. I still plan to make some barley twist columns, probably split.
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post #14 of 22 (permalink) Old 06-17-2019, 05:41 PM
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A duplicate post, now deleted. See the one below, Internet flakyness.

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Central North Carolina

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post #15 of 22 (permalink) Old 06-17-2019, 05:44 PM
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A search on this forum for "Turning Contraption will bring up this post as well as many more, but this is the one that I can remember with the most information on the subject.
https://www.routerforums.com/jigs-fi...r-turning.html

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post #16 of 22 (permalink) Old 06-17-2019, 06:11 PM
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Quote:
Originally Posted by lowracer View Post
I want to modify my router lathe so that I can add a template or item to copy, at the exact distance that the router is from the pivot point
Several years ago there was a thread on duplicator router lathes, one post of which linked to an interesting YouTube video.https://www.routerforums.com/jigs-fi...er-copier.html

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post #17 of 22 (permalink) Old 06-17-2019, 09:02 PM Thread Starter
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I'm talking about the Router Lathe that was in Shop Notes some time Ago, and on this forum
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post #18 of 22 (permalink) Old 06-18-2019, 08:01 AM
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Two of the things I like about the Router lathe in Bill Hylton's book, is the ability to turn really long pieces of wood, and the ability to use bicycle gears to change the pitch of the spiral.

a shortcoming of most of the router lathes is that you mostly cannot take an existing item. and use it as a template. let us say an existing table leg. (I don't have a lathe anymore, and I never had a duplicator)

I would just about give a left nut for a ornamental lathe. but I will also really appreciate the opportunity to see one in person, fondle it, ask questions, etc (not just watch youtube vids with envy)

to me the next natural succession would be to combine some rails, linear bearings, stepper motors, big leadscrews and whatever else is required to make a cnc lathe. I am seriously thinking about doing this.

But for now I am studying, trying to up my skills. I am currently busy with a Microsoft Certification in Data Science - that should finish in a month or two. Maybe after that some more Business intelligence, Artificial intelligence (just a few more modules required) . Then will look at devops and business analyst training, and whatever seems in demand to make myself more marketable.
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post #19 of 22 (permalink) Old 06-18-2019, 10:04 AM
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Biagio..........I have a Craftsman model gathering dust in my garage. Sometimes I think I'd like to make legs for a dedicated chess table incorporating the "hollow" spiral you show in your first picture. But I haven't because I don't know how much vertical stress they could take. Any ideas?

It seems I never finish what I
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post #20 of 22 (permalink) Old 06-18-2019, 12:02 PM
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Default Spiral spindles

Biagio,
I used a 1/4" beading bit with a point from Sears/Craftsman to cut the spiral.

These columns are half spindles. I cut the hard maple square block down the middle and glued the two halves together with newspaper in the seam, and also put bolts through each end to assure that there was no separation while cutting, and when finished I split the two pieces with a single blow of a sharp chisel.
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