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Showing results for tags 'center'.
Found 10 results
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I know we all know how to make these, I ran across this in my collection of Workbench Magazines and just thought it useful. And as usual, the disclosure:
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- center finder
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Something we do not talk about a lot is finding and marking the center on a piece of wood. 1. The easy way is to mark a square blank with a line across opposing corners and where they cross is the center. 2. A little more is a tool for lathes to find center on either square or round blanks and mark a line. With this tool you can do some irregular shapes by making several lines across the piece and select a spot in the center of all the marks. 3. Use a pencil in your hand extended but not to the center . Rubbing your finger on the edge of the blank mark all four sides and then select a spot roughly in the center of those marks. When center is determined use an awl or center punch to make your center for drive spur and then the opposite end for revolving tailstock. When starting to turn a bow blank with knots or protrusions it may be necessary to balance the piece to turn safely. In this case the center is the center of gravity for the piece and not the visual center. Mount the piece between centers and spin by hand . If it stops in the same place each time with a heavy spot down you will need to adjust the center you used toward the bottom and try again til you are satisfied with the balance and then try at a low speed by turning speed up til shake starts and then back slightly for a safer turning. as the unbalanced areas are removed speed can be increased.
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I found this on Craigs List, and I was curious what it's used for? I don't even know if it's metal or woodworking related. Thanks for any information.
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I built a center steady years ago. It works fine, however the wheels I used (white) were used on shower doors. No bearings. Wheels hard plastic. They worked fine, but I kept my eyes open for wheels with bearings at a good price. I found some at Amazon. They are made for printer mechanisms. They do have bearings and (not as) hard plastic wheels. I added them to my old center steady. I have NOT tried them yet, but I can not see any reason why they won't work. The one dimension I wish was smaller is the 3/8" wheel thickness. They were really cheap 5 for $7 I set the two spares down with the ruler. BIQU Big Plastic Pulley Wheel with Bearing Idler Pulley Gear Perlin Wheel for 3D Printer (Pack of 5 pcs) Visit the BIQU Store 4.4 out of 5 stars 56 ratings | 3 answered questions Price:$6.99 & FREE Returns Outer Diameter: 23.89mm Inner Diameter: 5mm Hight: 10.23mm Net Weight: 14g/pcs Color: Black https://www.amazon.com/gp/product/B01FJHZ42M/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
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Great way to get an awkwardly shaped/weighted piece centered/balanced on the lathe in preparation for turning-
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Salutations Gents, I'm thinking of making a 12" center finder from Plexiglas. I've got a smaller one that came with one of my lathes, works great, nice German engineering. What I've been doing for years is using measuring tools and a rule. What I'd like to create is something that works great on irregularly shaped tree parts. Say for example egg shaped Holly, where I want to find the best center overall. Any tips before I build one on my own thoughts? Concept: Thinking of just scribing circles out from the center at intervals then ink them in. Then I'll just hold it over the end grain and with a tiny hole in the center I'll pop an impression. Thanks
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center finding: ("Thales Theorem") take your ruler and place zero inches on one edge.... move the ruler diagonally across the piece till you read a number at the other edge easily divisible by two... divide... that number is is the center... find it on the ruler and make your mark... to find that IRL measure of center... measure from the edge to the mark w/ the ruler perpendicular to the edge... no measure... say the stock is 3/4" thick/wide... put a 3/4" fostner bit in the DP.. slide the fence up to the bit and lock it down... presto... center of stock all done... finding spacing... Do your diagonal measure only instead of dividing by 2 divide by the number of pieces you want... example.. you want 5 pieces from stock 12±'' wide... diagonal measure 15'' and divide by 5.. quotient is 3... every 3'' make your mark.. (3, 6, 9, 12).. center finding ruler... lay the ruler on the piece and shift left or right till the measures are the same to both edges... mark the zero...
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You have cut a round piece of stock on the table saw and you don't want to change the chuck jaws on your lathe to fit the piece (if it would fit) and you want to find dead center. 1. How do you determine dead center? 2. How do you accurately mark center? 3. Is there a device that will do all the above in one easy step?
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Last year I built a center steady using ply and roller skate wheels...........worked great. However it would allow me to work on small turnings. Today I fashioned some new shower rollers into a new set of wheels for the old base. It seemed to work on a small piece of pine, however the wheels are so hard that they make a groove. I know most of the reason is the soft pine. Anyone else have any ideas of an alternate and better wheel. Thanks
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I made a center steady for my lathe some time ago. At first I used model airplane aluminum wheels with rubber tires. I did use them once and the second time the tries came off. My second wheels were made for sliding glass doors and was suggested by a fellow turner on this forum. Still not satisfied, I kept my eyes open for a good replacement. Then at a yard sale I saw the ones pictured for free. They are off a child's pair of inline skates and as an added bonus, they are WHITE!! They are great and work like a charm. I would like some just like them but smaller. I'm sure someday I may just find them at a garage sale
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