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Who hollows with laser rigs?

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Who hollows with laser rigs?

#1

Who hollows with laser rigs?

Bill Grumbine, Kutztown PA

>Greetings all

I am sitting here at my desk surfing a bit and looking at laser hollowing rigs. I have some discretionary money burning a hole in my pocket, and I am trying to make up my mind if one of these things is really worth it. I do not turn a lot of hollow forms, but when I do, they sell. So I got to thinking, if I had one of these things, would it make turning hollow forms faster/easier/more enjoyable?

If I would go this route, I would need to do a combination of buy and build. I do not have THAT much money lying around! For example, the price of the Oneway rig is outrageous. More in line with my budget is the Jamesion handle Packard sells, although I would need to procure the laser and associated parts.

I am looking forward to hearing some opinions and experiences.

Bill

Re: Who hollows with laser rigs?

#2

Re: Who hollows with laser rigs?

Mike Schwing from Md.

>It makes it faster, easier, and more enjoyable, for me anyway. Lots of each. I do not like my laser rig, but I love hollowing with a laser guide. I have the Kelton laser rig for the Kelton hollowing rig. The laser is a pain to adjust. The system by which the laser is held in place is simply two screws that tighten down on a pipe inside another pipe. Tightening the screws rotates the interior pipe, which of course has the laser attached to it. One doesn't tighten down the screws until the laser is pointing where you want it, of course, and then it goes off course as soon as it is tightened! Ridiculous engineering for an otherwise superb system.

I have no experience with other laser rigs.

Re: Who hollows with laser rigs?

#3

Re: Who hollows with laser rigs?

Jerry Whitaker

>Bill, I am in the process of doing the same thing. I have already bought the Lyle Jamieson "D" handle and the boring bar but I am currently collecting the stuff to make the captive back tool rest and I also plan on making the laser attachment. I bought two laser lights off Ebay for $4.95 ea. and I think I can do it. Making those two pieces will cut the cost by over half. I saw Lyle demo his system at the AAW National in Orland this past summer and that is one sweet system. Just takes your thumb and forefinger to operate. I got to use it and of course was grasping tight and fighting it which is the normal thing to do until he told me to relax and use two fingers and by golly, I was amazed at how simple and stress free the hollowing became.

Re: Who hollows with laser rigs?

#4

Re: Who hollows with laser rigs?

JamieDonaldson

>Bill -you ( and I!) don't need no stinkin' laser rig!! Too much time is wasted monkeying with the adjustments, and all they do is give you a false sense of security. I have tried to resist collecting every new bell and whistle that comes along so quickly these days- most of them are toys or snake oil. I figure if David Ellsworth doesn't use them, why should I waste my money?? Takes all the fun and excitement out of hollowing!!

Re: Who hollows with laser rigs?

#5

I hate to see a man not spend $$

Ray Thompson - Middletown,IN

>but check out Al Crandall's article on his homemade rig. I think he has about $20 in it and it works just as good as a store bought, maybe even better than some. At least his laser was easy to adjust.

Ray

http://www.cicaaw.org/taxonomy/page/or/44?PHPSESSID=f67da5fd7b79bb5a9e1eb7a7ead798f1

Re: Who hollows with laser rigs?

#6

Re: Who hollows with laser rigs?

Gadi

>I'll never forget getting a new 4-jaw chucks when they became affordable -- how useful and time-saving the 'new fangled' device was. And true, although it was not essential, I doubt I would turn without it now ...

Gadi

putting my crotchety old coot badge down

Re: Who hollows with laser rigs?

#7

Keith Tompkins

Re: Who hollows with laser rigs?

Keith Tompkins

>Hi BIll, good post! That's a subject I have pondered myself....I can see the advantages the laser offers to the professional turner in speed and uniformity. I have resisted the temptation so far....

HOwever, it almost seems like "cheating" to me...almost anyone can create a hollow form with a laser-guided rig. I think they are missing a great skill-building opportunity if they rely soley on the laser rig.

If you get a chance, carefully inspect a David Ellsworth hollow form.....a 24" hollow form has under 1/4" walls of extreme uniformity, all the way to the bottom. No bumps, grooves, etc. An amazing display of skill!

Re: Who hollows with laser rigs?

#8

Re: I hate to see a man not spend $$

Jennifer@Indy.USA

>I used Al's rig and yes...it was great. But I have to admit...I felt like I was cheating!

But it did take the fear factor out of it.

Jennifer : )

Re: Who hollows with laser rigs?

#9

Bill - Don't go over to the Dark Side!!

Mark Kauder, Phenix City, AL

>Once you go to the captured hollowing rigs (IMHO) you might as well just buy a CNC rig or a duplicating lathe (Opps, you did that one).

Thought I can see the speed of the captured rig, it just seems like cheating to me. I am using the Don Pencil system, and over the last week or so, I have built a laser attachment. Initially I made it to measure where the inside bottom of my bowls are - tired of turning through the bottoms. But over the last couple of days, I have used it to hollow a new vase, and it does speed the final hollowing process.

I built the one that is on Kevin Neeley's site (Turnedwood.com), for about $40, and can easily be moved from tool to tool. You could use it on your Kelton coring tool.

Mark

Re: Who hollows with laser rigs?

#10

Re: Who hollows with laser rigs?

Phil Joines Krum, Texas

>The boring bars them selves aren't hard to make if you have a heat source to bend the handle and weld the cutter bar socket.

One advantage is being able to make cutter bars is whatever shape you want. Most comercial systems limit you to a fairly narrow shape at the top. To make a piece with a wider, flatter top you need a cutter bar with more bend.

Another advantage is being able to make the bars in larger sizes for deeper work. IMHO a 5/8" bar is limited to about 18" of depth before it starts to chatter.

The normal pointer type lasers use a lot of the button cell batteries. If you go that route it's worth while to find one that uses AA or AAA batteries or make an adapter for a power supply.

Re: Who hollows with laser rigs?

#11

Re: I hate to see a man not spend $$

Dave MacLuskie

>ooh! I like Al's set up! I don't have access to welding equipment, and his looks doable for me. Does anyone have some additional pictures (before I pester Al for them)? I'm not quite understanding from the article how the details of the assembly work.

Re: Who hollows with laser rigs?

#12

Re: Who hollows with laser rigs?

Jerry Whitaker

>If using a laser guided hollowing rig is cheating, so is using a chuck, super glues, high speed steel tools, variable speed lathes etc. These are nothing more than conveniences that add up to a pleasurable experience. We could all return to being pure woodturners and resort to using ancient methods of holding woods between centers, trying to forge our own tools and turning with pole and pedal powered lathes. We could leave our SUV's in the driveway and take our next vacation on a beast of burden. I think I am liking this "cheating thing."

Re: Who hollows with laser rigs?

#13

Re: Who hollows with laser rigs?

Tom Sweeney - Coatesville, PA

>Hey Bill,

Check out this shop made rig Sparky Paessler made - looks really nice:

Laser Guided Hollowing rig

Re: Who hollows with laser rigs?

#14

To cheat or not to cheat? ...>>>

RonZ

>Phil Joines has a nice laser, the rest you can probably make yourself.

For the record, I view it as cheating. This statement is directed to the general populus here and not Bill. Technicaly a chuck is a form of cheating, too. If you haven't taken the time to turn from a face plate or develop skills to make a jam or fitted chuck, you're missing basic skills. A hollowing rig is similiar to a device [if it existed] the was a skew guide. Yes the fear is taken out and you'll produce really nice turned spindle with lots of detail that doesn't need sanding. It's like riding a bike with training wheels.

With the above said, the only person you stand to cheat is yourself. If you only turn as a hobby and only have a few hours to dedicate to turning, then a rig is fine. If you're retired and don't have time to start from square one and want to give the gift that your grandkids will tell all there friends about, that's great, too. However, if you wish to build your skills as a professional woodturner and be recognized as such, then you'll need to hollow freehand. Once you aquire the skills, then if you decide to get a rig to keep up production or save time so that you can make a living, that's great.

Besides not having access to a lot of wood here, I'm not really into hollow form, which wastes a lot of wood. I imposed an exile on myself not to turn hollow forms until I'm into my second year of turning. That will be in about another half of a year. I'm seriously thinking of pushing it off until the third year. Not out of fear but I want to feel that I have truely devolped basic skills before I go to what I consider th enext level.

The above views are my two shekels worth and you may discard them at will.

Re: Who hollows with laser rigs?

#15

everyone scared into hiding?

Mike Schwing from Md.

>I _KNOW_ there are a lot of you guys out there because you've emailed me....

For the record, I think this whole cheating thing is a total joke! I'm surprised that many of you can allow yourselves to live in a modern home without having electrical engineering degrees, too.

It takes about 5 hollow forms by hand to learn the basics of hollow form turning by hand. You can get them to any thickness you so desire by hand (including zero), and you can do this with the laser, too. Would successfully completing one hollow by hand satisfy the detractors that say basic skills should be necessary? Two? Or would there be a wall thickness measurement necessary to statisfy? I'm much happier skipping the calipers when hollowing, but I know how to it just fine. It takes no more skill, in my opinion, just different ones, and more time.

I would challenge any one of you that thinks it is cheating to drop by and use the laser guided hollowing rig with no instruction and see if you still think its like cheating. When we're done we'll slice it in half to see how you did. It is possible to create all of the mistakes with the laser that you can by hand. There are some very specific skills required that are not instinctive to the human species.

Why restrict it to the laser? How about a torsion arrested hollowing rig? You don't need a laser for that, but surely it is cheating, too, eh? Look down about a week ago to see how easy they are - BOOM, I blew one up last week at the very end, but you can do that freehand almost as easily. I have proof.

Most of us started turning when chucks were standard equipment. Electricity, too. Was the Ellsworth grind cheating when it came out? Did the first guy running a water wheel powered shop get called a cheater?

I have to say I'm slightly disappointed in what are usually very open minds around here.

Re: Who hollows with laser rigs?

#16

Re: Who hollows with laser rigs?

john Lucas

>Bill

I use both. I built my lazer rig and boring bar. I did purchase a curved bar from Sorby. I find it both useful and a pain. Some of my shapes require too much adjustment of the boring bar secondary rest. Probably because I don't have the right curve to my bar. On these pieces Ifind it quicker to just use the armbrace.

What I like about the lazer is the speed that I can hollow with confidence. The roughing out phase goes very quickly because you know where the cutter is. I don't do enough hollow vessels to be as quick as John Jordan so this speeds things up for me.

When the walls get thin you still have to go cautiously but you have so much control. For thin vessels with small openings I think the armbrace is better because it takes less adjustment of all the parts. If you don't adjust the lazer properly you will still cut through the sides, been there done that and have the bloody T shirt to prove it.

On Open vessels like Frank Sudol does or for tall vessels the boring bar is the only way to go. It's just safer (Remember the story of Phil Moulthroup being thrown across the room) BAck then everyone was using 6 foot steel bars as handles on the tool to control the forces. Then they started resting the bar on a stand because it got heavy. Then the captured bar system evolved.

Cheating. It's a piece of art. It doesn't matter how it was achieved as long as it was. If the process is important to you then it might be considered cheating. If however you are looking at efficiency of the process to increase the profitt then whatever works as long as your customers don't complain.

Re: Who hollows with laser rigs?

#17

Apples and oranges..>>

RonZ

>...>>> or in this case, craftsmanship vs convenience.

You don't need to be an electrical engineer to use or enjoy the benefits of electricity. When you build a house you'll surely need the engineer.

There is a reason why Ellsworth can get just a tad more for his hollow forms. Why would the Ellsworth grind be cheating? It put a scraper or for the elitists 'shear' scraper on a gouge. It does take a little more skill to shear scrape with a gouge than using a scraper. Lets say there is a router jig that can make those beautiful scrolls that Keith makes, is that convenience? How much skill is involved? Can the user of the router jig claim to be as skilled as Keith?

Electric lathes and chucks fit more into the convenience area. The first guy who came out with the electric motor for grinding or turning did us a service and while technically he could be called a cheater or at least he will be more obese, it was progress. The use of electricity allowed for one to expand his skills by being able to concentrate on turning instead of turning a lathe and holding a scraper with his feet. Chucks have been responsible for more elaborate turnings instead of the bottom of a bowl having holes plugged up.

Progress does have its drawbacks. When the Chinese develop a CNC hollowing machine, the hollow form market will shift. Just look at pepper mills. You can get a salt shaker and pepper mill set from China for less than the half of what a good pepper grinder mechanism costs. A woodturner has to justify his prices by either eleborate segmented piece or displaying an apreciable craftsmanship that will not be present on the Chinese set.

My wife does claim that my engineering degree was necessary to assemble the kids' toys

Re: Who hollows with laser rigs?

#18

Re: Apples and oranges..>>

Mike Schwing from Md.

>Ron, the Ellsworth grind (and its ilk) makes it almost unbearably easy to turn bowls, when compared to using a standard bowl gouge. Indeed, I think I'd have dropped turning completely if it wasn't for discovering that style of grind.

Using the laser/cheating argument put forth here, I'm cheating if I haven't spent years turning with a traditional bowl gouge grind.

Why hasn't the Beale buffing system been described as cheating? My guess is that the audience available for a brow beating is much larger. Surely one can create as wonderful a finish by hand. Shouldn't we all be required to learn how to do that - and not many of us have, by the way, before we move to wheel buffs? A customer does not look at a finish and say "that was buffed on a wheel, I'm not going to pay as much for it", he/she just likes the finish.

Re: Who hollows with laser rigs?

#19

Re: Apples and oranges..>>

RonZ

>The 'Ellsworth' grind which in this part of the hemisphere we call the long or Celtic grind has been shown by Bonnie Klein [see AAW sharpening video] to go back over 100 years. So it's not recent. Most schools [on this side of the pond] teach with a regular grind or at most a fingernail grind as the new students are always catching when using the long grind. This rarely happens with the standard grind. You have found a tool that works best for you as it does for me personally. Others, especially professionals, prefer the regular grind or at least a small or fingernail grind.

While we can discuss this ad nauseum, if you read my original post, its what ever works for you. Perhaps cheating is to harsh of a word but short cut might be more easier to digest.

You have the professionals of Woodcentral that would differ with you and to each his own. Why would I have a carpenter make me something like a dresser when I can buy one for $99 at a furniture store? I think you know the answer.

Very interesting you brought up finishing. I do this well and have even surpassed my teacher. Just as a french polished table enhances the wood better than lacquer, friction polish enhances a turning better IMHO than lacquer. I have used it on 10" bowls and column supports for dining tables which few or none can do in at least this neck of the woods. I worked hard and put in a lot of practice to be able to do this and perhaps its all the difference as to why someone would buy one of my turning vs the exact same item of anothers. Should or would one pay a lower price for a pure tung oil finish vs a lacquer finish?

Buffing and for that matter, power sanding, would fit under a convenience item. It's a chore. It saves you time and allows you to be more productive such as an electric lathe or a scroll chuck.

Neither hither nor tither what will come to bare

is that we should all have a happy and healthy

Gregorian New Year. =o)

Re: Who hollows with laser rigs?

#20

But Ron..

Mike Schwing from Md.

>You said "Buffing and for that matter, power sanding, would fit under a convenience item. It's a chore. It saves you time and allows you to be more productive such as an electric lathe or a scroll chuck."

So does hollowing come under a convenience item! In fact, it is much less of a part of the finished product than the finish is as it is usually totally unseen. There are fanatics who would have an interior just as well turned as the exterior, but there are fanatics with every aspect of everything in life. Most folks are happy to turn out a hollow form that didn't blow up, and is light enough that the user can feel it to be hollow. Me, shoot, I'd leave them solid if they'd stay together in that form. It is the exterior that pleases me.

There is a learning curve associated with using powered buffs, too. You can remove a finish, melt lacquer, etc... no different than learning how to use a laser rig.

I think you're digging too hard to keep the Ellsworth style grind off the table. Over here, it was apparently David who introduced this type of grind to the masses, thus the name. It is a revolutionary grind, IMO. I have seen dozens of new turners, me included, improve their results immediately upon learning how to use this. Is it cheating? Not to me. I don't know how to milk a cow either, nor weave cloth.

I simply do not understand why you make a distinction for the laser rig. Hollowing quickly is simply a convenience, too. It is not an art, regardless of who says it is. I can do it, and I'm no artist. Why make it more than it is?

Re: Who hollows with laser rigs?

#21

Re: Who hollows with laser rigs?

David Galloway

>Wow, this sort of got off on a tangent.

Back to the question, I have been using a superb system for hollowing developed by Cliff Lonsbery of Michigan. He brought his systmem South last Winter and like a carpetbagger sold all 25 units, leaving a bunch of satisfied customers.

The unit is much like Jamiesons but is better built and less money, a good combination. A lot of guys here are using this system to do cremation urns and they are cranking. Quick, reliable, efficient...the name of the tune.

The unit is marketed as the Infinity system. It is available through Highland Hardware as well as online at www.fulmerwoodworking.com..

Bill, thanks again for your DVD....killer!

David Galloway

Re: Who hollows with laser rigs?

#22

Re: Who hollows with laser rigs?

Bill Grumbine, Kutztown PA

>Wow, what a discussion! I thought the cheating thing might arise, because I wondered about it myself before I posted this question. Here is my perspecitve on this particular aspect.

First, there are two components to a turning, technical and artistic. The technical aspect can be achieved by just about anyone who puts their mind to it, and who can obtain the proper equipment. The technical aspects can be achieved with different levels of equipment, but with different amounts of effort needed.

The artistic component is a little more elusive I think. While good form and design can be learned (and indeed NEEDS to be learned) by anyone, there are always going to be people who have a natural gift for it. Please understand that I am not denigrating anyone's ability here. I am just making the observation that not everyone has the same gift for artistry just as not everyone has the same body shape, intelligence level, etc.

It is true that some people also have a gift for grasping the technical issues more quickly, but in my opinion, these are basic skills that can be taught to anyone intelligent enough to understand. I offer by way of example the ability to read a tape measure as a technical skill. One inch is one inch and that is very objective. The flow of a nice curve is much more subjective, and is much harder to describe, much less achieve.

So, is it really cheating to take advantage of more advanced technology? This same discussion goes on over on the flat side all the time, and is so passionate that the Neanderthals have their own message board. But there are Neanders who built crappy looking stuff just as much as the power tool people - it just takes them longer. Now this passion has reared its head here on the turning forum.

It seems to me that if someone were manufacturing templates that we could stick on our machines and use to carve out hollow forms to be sold as artistic work, that would be cheating. I went though this whole process when I made the decision to buy the copy lathe, because that is exactly what I intend to do - use a template to churn out hundreds of pieces. But in spindle work, it is not cheating, it is taking advantage of technology to manufacture pieces efficiently. There is no question as to whether it is art or not because it isn't. I will add the caveat that there are apparently a whole parcel of Windsor chair makers who own the same copy lathe I do, but will not breathe a word about it, for fear of being labeled a cheater.

But in hollow turning, once the form is shaped, then hollowing it out is just the drudge work of getting it done, right? We have often discussed wall thickness here and in local groups, and the conclusion is almost always that wall thickness is not really important to anyone EXCEPT other turners! Most buyers don't care how hard it was to get a vessel to 1/8" instead of 3/16". It is of no importance to them, with the upper and lower limits of fragility and clunkiness. If a piece is too fragile, many people will walk away, and the same goes if it feels too clunky, although there are always exceptions. But anyway...

It seems to me that if a person has achieved to their own satisfaction, and measured by whatever standard they care to use, the ability to produce well designed pieces, how does technology enable them to cheat? Remember, we are not talking about a form template or something like that. We are talking the equivalent of power sanding versus hand sanding. Even with the advanced technology, one can still produce poorly executed pieces. I know because I still manage to do it, and I see others doing it as well.

So, this has turned into a very interesting discussion. I hope it continues for a while, as it sure is a lot more interesting that a lot of the more mundane stuff that comes along.

Bill

Re: Who hollows with laser rigs?

#23

Keith Tompkins

Re: Who hollows with laser rigs?

Keith Tompkins

>A couple of thoughts.....I came up with a rig that uses a turned plumb-bob on a string a few years ago as a wall thickness guide.When the string stops touching the turning, the wall thickness is good. It works, but is obsolete compared with the laser systems.

Is designing your own system cheating too? Or just using your head to improve efficiency.

Another tool used by some turners is the power carver.....although I have developed hand-carving skills over the years, I LOVE using a power carver; it's fast and lots of fun. Sometimes the results are better than hand carving, especially fine details. I guess it may be considered cheating by purists too.

Back to the laser, I think it's a good idea to practice without the laser from time to time just to develop the skill.

I bet I could produce a hollowing rig that would duplicate a form, just by following a template...now that would be cheating! hmmmm..

Re: Who hollows with laser rigs?

#24

Re: Who hollows with laser rigs?

Gary in Zirconia,NC

>Jerry,

I'm with you! I love using my laser system.I cut the pieces for mine and took it to a welder and he charged me $10 to weld it.

Re: Who hollows with laser rigs?

#25

Re: Who hollows with laser rigs?

JamieDonaldson

>My objection to laser rigs was based on aesthetics, and the fact that I tended to want every new tool that looked usable! I found myself spending more time learning about the tools/toys than actually using them! I learned to hollow in Ellsworth's shop, and I don't feel the need to speed up the process by buying more toys in order to increase my enjoyment. I am more fond of running my hands over a wonderous warm piece of wood than a new cold steel tool/toy. Unless it's a new tool/ toy I really, really need!!??