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| Forum topic by Joshua Howe | posted 361 days ago | 893 views | 0 times favorited | 17 replies | ![]() |
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361 days ago |
Topic tags/keywords: lathe problem advise help turning bowl sharpening question I have turning for a few years on and off. Most of the turnings I have done have been spindle work, but recently I have purchased a self centering chuck. I am wanting to turn bowls, boxes, and etc. -- Wood,clay,metal, and stone are all just materials, until an artist's hand touches them.--TreeFormDesign |
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361 days ago |
The things you identified may be the problem. A couple of other possibilities … I’m a cabinet guy (which means a hack turner), but there are some amazing turners here, and I bet they’ll have some great suggestions for you. -- http://www.north40custom.com -- http://north40studios.etsy.com -- |
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361 days ago |
Okay, I have been moving my tool rest in trying to keep it as close to the piece as possible and I do understand the bevel needs to run parallel to the cutting surface. I was never taught how to sharpen my tools so my bevel may not be at the right angle if any one knows the angles the are suppose to be at would be great and I am trying to figure out how to post pics of my set-up and tools. I used a bowl gouge and a round nose scraper to hollow this bowl maybe I’m using the wrong tools. thanks for the advise so far and the advise in the future. -- Wood,clay,metal, and stone are all just materials, until an artist's hand touches them.--TreeFormDesign |
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361 days ago |
Something else my scrapper is a little bent could that cause a problem. -- Wood,clay,metal, and stone are all just materials, until an artist's hand touches them.--TreeFormDesign |
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360 days ago |
Joshua, Is it possible that the piece is slipping in the chuck? Even though the chucks hold a piece center, there could be enough variation that if the bowl slipped, it would be off center. I discovered this when I started making pepper grinders. I would turn the shape, remove the piece to drill the center and then return to the lathe. The piece would almost always be off center and have a wobble to it. To help eliminate this, I filed an indicator mark on the chuck and when first mounting the work piece made an alignment mark on the piece so when returning to the lathe, the piece would always have the same orientation. The other possibility is that the piece is “lifting” out of the chuck. Most chuck jaws are not straight at the “gripping” end. They are sort of shaped like a dovetail. When you are turning the end to be clamped into the chuck, try to match the angle of the chuck jaws. This will give you more gripping surface and a wedge like connection. As for sharpening your tools, there are several websites that can help you get an idea of the setups. To start with, I would just try to resharpen using the original angles that were on your tools. Although you can sharpen, hone and polish the cutting edges, a simple grinding touch up and maybe a few swipes with a hand help diamond stick will usually be enough to get started. Here is a site that has some interesting stuff http://www.woodturnersresource.com/ Lew |
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360 days ago |
Here is another link that has some good stuff |
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360 days ago |
It’s hard to say without watching you. It may be a combination of a lot factors. However, 99% of the time when I get nasty “tear out” or catches, it was due to improper tool presentation. I typically start off my blanks between centers, round the blank, rough shape it, and form the tenon. I then mount the blank into the chuck. I true up the roundness, finish shaping, and sand. Next I start hollowing out the bowl, or form. I try to always take light passes with a sharp tool, concentrating on my tool presentation. DO NOT be tempted to “hog out” large chucks of wood and make the chips sail like the professional turners do on DVDs. They are professionals turning green wood with years of practice. I sharpen my tools with a slow speed grinder using the Wolverine jig system. I try and match the angle the tools came with. I have my best luck sharpening when I imagine the tool is my fingernail; take light passes with a soft touch. I am only trying to bring the edge back, not remove a lot of material or shape the tool. I sharpen my tools frequently, especially while turning dry or cured wood. Good luck! -- My favorite piece is my last one, my best piece is my next one. |
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360 days ago |
Thank you guys, Well last night I went back to the bowl I was working on. I’m not sure on the wood type because a friend of mine gave me the wood. I know it is spalted (spelling). But it apparently a very hardwood. -- Wood,clay,metal, and stone are all just materials, until an artist's hand touches them.--TreeFormDesign |
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360 days ago |
The recommended height is for the spindle to be elbow high. -- My favorite piece is my last one, my best piece is my next one. |
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360 days ago |
Hi Josh, Woodturning like anything else takes lots and lots of practice. The best short cut to the top is practice while under the guidance and direction of like minded individuals in a local woodturning club. A list of those clubs and the ones closest to you is available through the American Association of Woodturners (AAW) at http://www.woodturner.org Having been introduced to the AAW some 10 years ago is the best thing I ever did. I now belong to 4 different clubs and turn professionally. Mike “One good turn deserves another” |
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359 days ago |
you’ve gotten a lot of good advice.. what tool are you using for hollowing? craftsman are better then average for spinning.. a few things that helps me.. increase the speed, sharper tools and finer cuts.. my 1st year i turned a lot of bowls with an 80 grit gouge.. but with practice, when i take a piece off the chuck, it’s ready for 3 or 4 hundred grit. look at some offset hollowing tools. and try to get the tool rest as close to the wood as possible.. i have found that an extra hour on the lathe using finer cuts can save hours hand sanding. and when we say sharp tools, i can shave with most of mine,, very sharp -- it's not a sickness, i can stop buying tools anytime i want |
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359 days ago |
btw, i sharpen by hand using a stationary 6 inch sander with 600 grit.. a jig to hold the tool at a perfect angle might help.. and i almost never start and finsh a piece without a trip or two to the sanding station. -- it's not a sickness, i can stop buying tools anytime i want |
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359 days ago |
Check out the videos on WOOD Magazine. -- -** You are never to old to set another goal or to dream a new dream ****************** Dick, & Barb Cain, Hibbing, MN. http://www.woodcarvingillustrated.com/gallery/member.php?uid=3627&protype=1 |
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359 days ago |
are you turning end grain? because that could also be something. end grain catches a lot especially with gouges and since i’m a beginner to i use a scraper on end grain. |
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359 days ago |
The wood Mag video was very helpful. I watched the one on bowl gouge tech and between sharpening my tool (which I am building a jig) and bowl gouge tech. I think I am going to see a huge difference. Its hard to be a perfectionist, when you want it know. -- Wood,clay,metal, and stone are all just materials, until an artist's hand touches them.--TreeFormDesign |
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359 days ago |
Also I am going to woodcraft today to by a 120 grit aluminum oxide wheel and a medium grit from home de pot. -- Wood,clay,metal, and stone are all just materials, until an artist's hand touches them.--TreeFormDesign |
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356 days ago |
Well I Built My homemade Wolverine jig and put new stones on my grinder and all I can say is OMG what a difference that has made. -- Wood,clay,metal, and stone are all just materials, until an artist's hand touches them.--TreeFormDesign |
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345 days ago |
Josh, -- .......and if ya screw up, you can heat yer house with it...... |
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