JANUARY 2019
What’s Inside
PREZ SEYZ PAGE 2
DECEMBER DEMO PAGE 4
JANKA HARDNESS PAGE 7
SHOW AND TELL PAGE 9
PEN WOOD OF MONTH PAGE 18
HOW TO FIT LOG BLANK IN SMALL BANDSAW PAGE 22
Pen Guy’s unfinished bowls for the Feed My People Bowl Event. Only got 14 done before illness. PREZ SEYZ 2 Happy New Year!
As we begin 2019, let's all express our thanks to all the great demonstrators of this past year. I know that without you all I would not be having all the fun turning that I am.
And the new year started off with a bang with a great demo by Bob Eberhardt on bowl saving equipment. Thanks much Bob.
As we look forward to 2019, we have several events coming up.
1. "Feed My People " make sure that you get your bowls turned in by the Feb. meeting. And if you can donate that one "Special "item for the silent auction.
2. "National Chainsaw Championship " We will be having a booth again this year so keep Aug. 1-4 open to help out at the booth. We will have more info later.
It was brought to my attention that several people have not paid membership dues since 2017, If you are receiving this news letter and are no longer interested in keeping your membership up please contact Randy Patzke at [email protected] and Tom Leonard at tl9597@ charter.net so you can be removed from the mailing list. To all the rest, Dues Are Due !!! We soon will be adding a new midsize lathe to our shop made pos- sible by the awesome memorial gift from the family of Allen Otto.
That's all now, stay warm and let the chips fly... Prez Duane
JANUARY MEETING HIGHLITES 3
Notes from meeting as best remembered, all officers agreed to another year so all were reelected.
We will be exhibiting at the National Chain saw event on Aug. 1- 4 of this year. Barry Grill has turned blanks for the pen turning and Mark Palmer will be gluing then up to be ready. We will again accept items to be sold as a club fund raiser at the event.
Bob Eberhardt did a great job demonstrating the "One Way" bowl saving equipment, very much appreciated.
Bob Eberhardt will be teaching a beginner turning class for 5 Wednesdays starting Jan. 23rd. If interested contact Bob at [email protected]
Beginner Turning Class in January
Bob Eberhardt will be teaching 5 Wednesday classes on turning basics starting on Wednesday night 1-23- 19. We have openings for 6 members. The cost of the class is $15 which covers all supplies used. Classes will run for about 4 hours starting about 6pm. Anybody is welcome to come to these classes.
Contact: Bob Eberhardt at [email protected] if you are interested in attending with your name, email, and phone number.
January Demonstration 4 Bowl Saver Bob Eberhardt
Note: A writeup of this demonstration was not done. Our apologes to Bob for this oversight.
What is a Bowl Saver? Also known as a Core Saver, these varied turning tools enable the turner to utilize the entire bowl blank by cutting out the center of the blank for a bowl which would have otherwise been waste.
5 6 WOOD CHARACTERISTICS 7 JANKA HARDNESS
In the pen woods of the month Janka Hardness has been left out in the criteria the Wood Database as well as Average Dry Weight, Specific Gravity, Modulus of Rupture, Elastic Modulus, Crushing strength and Shrinkage. Reviewing the meaning of each of these it became apparent that even though each has little useful meaning to woodturners, it can be useful to woodworking which many group members participate. Janka Hardness seems to be the more useful of these wood characteristics because there is a lot of information and most understandable. The other characteristics will be treated as short subjects. Janka Hardness is useful in determining how well a wood can with- stand dents, dings and wear. It indirectly predicts the difficulty in nailing, screwing, sanding and sawing a wood. One of its useful- ness is to determine the hardness of a wood to be used for a floor. From the Wood Database: Technically: “The actual number listed in the wood profile is the amount of pounds-force (lbf) or newtons (N) required to imbed a .444″ (11.28 mm) diameter steel ball into the wood to half the ball’s diameter. This number is given for wood that has been dried to a 12% moisture content, unless otherwise noted.” As an example:” For reference, White Oak has a Janka hardness of 1,360 lbf (6,000 N), while the super-hard Lignum Vitae has a hard- ness of an astounding 4,500 lbf (20,000 N). (Who could imagine a wood species that is over three times harder than White Oak?) On the lower end of the spectrum, Basswood has a hardness of around 410 lbf (1,800 N).” https://www.wood-database.com/wood-articles/janka-hardness/ From Wikipedia:
“The hardness of wood varies with the direction of the wood grain. Testing on the surface of a plank, perpendicular to the grain, is said to be of "side hardness". Testing the cut surface of a stump is called a test of "end hardness". Side hardness may be further di- vided into "radial hardness" and "tangential hardness", although the differences are minor and often neglected. See January 2018 The results are stated in various ways, which can lead to confu- 8 sion, especially when the actual units employed are often not at- tached. Overall, the resulting measure is always one of force. In the United States, the measurement is in pounds-force (lbf). In Sweden it is in kilograms-force (kgf), and in Australia, either in newtons (N) or kilonewtons (kN). This confusion is greatest when the results are treated as units, for example "660 Janka".[1] https://en.wikipedia.org/wiki/Janka_hardness_test
From Answers.com
There are exotic woods (imported, that is) taken from the Amazon and milled in Brazil that are 80 times harder than oak; such as Ipe (Tabebuia) and Jatoba or Guapinol or Algarrado (Hymenaea cour- baril). Bamboo laminate has become more and more popular for flooring since the turn of the 21st century. Lignum vitae has a density rating of 1.23 grams per cubic centimeter, as compared to oak; which comes in at .65 grams per cubic centimeter, or Balsa wood; which comes in at 0.16 grams per cubic centimeter. Density relates to durability, but availability makes oak more widely used than Lignum vitae. This also explains the popularity of tile floors. www.answers.com/Q/ What_is_the_most_durable_hardwood_flooring
Woodturning Video of Interest
Mike Peace a well known woodturner has an interesting video on turning and gluing tips in relation to the importance of considera- tion of grain orientation. Somewhat basic but a pearl or two of useful information can be found in it. https://www.youtube.com/watch?v=QDaSD3S1pCY 9
Barry Grill with dyed deep hollow urn 10
Mark Palma with many dyed bowls which will be contributed to Feed My People event 11
Above: Mark Palma with large bowl and small bowl. Below: Mark Palma with cut away of a pepper mill. 12
Mark Palma bowl with inlay
Mark Palm bowls made of Corion 13
Mark Palma cigar box with Cigar pens 14
Three walnut bowls made by Mary Weider from the Walnut wood ob- tained from farm in November 2018. The effect is due to a different orien- tation of the blank on the lathe. 15 Bruce Tremble with a Christ- mas ornament made of a sea Urchin and shared some methods he used to make it.
John Layde had a burl that was roughly shaped like a turtle.
Apologies to John Layde and a unrecord- ed member for not using their pictures. These were too blurred to be usable. 16
Randy Patzke with large segmented bowl
See next page for turner and description 17
Unrecorded member with vase and two bowls
Stemmed glasses . Turner not recorded. PEN WOOD OF THE MONTH 18
Common Name(s): Timborana Scientific Name: Pseudopiptadenia suaveolens (syn. Piptadenia suaveolens) Distribution: Central America and Brazil Tree Size: 65-100 ft (20-30 m) tall, 2-3 ft (.6-1.0 m) trunk diam- eter
Janka Hardness: 1,550 lbf (6,880 N) On a scale between 22 and 5060lbs) Color/Appearance: Heartwood tends to be a golden to reddish brown. Sapwood is a lighter brown color, and is not always clearly distinct from heartwood. Sapwood may be over 2.5 inches (8 cm) thick.
Grain/Texture: Grain tends to be interlocked and/or wavy. Regu- larly spaced large open pores give a coarse but even texture.
Endgrain: Diffuse-porous; large pores in no specific arrangement; mostly solitary, with some radial multiples of 2-3; mineral deposits occasionally present; growth rings indistinct or distinct from seem- ingly marginal parenchyma; very inconspicuous rays not visible without lens; parenchyma primarily vasicentric or aliform. Rot Resistance: Timborana is generally regarded as durable or 19 moderately durable regarding decay resistance, though it is susceptible to insect attack.
Workability: Timborana has a fairly high blunting effect on cutters due to its silica content. The wood is also somewhat difficult to sur- face, owing to its interlocked grain and density. Timborana glues and finishes well.
Odor: No characteristic odor.
Allergies/Toxicity: Although there have been no adverse health effects associated with Timborana, some species within the Piptadenia genus have been reported to cause eye, nose, and throat irritation. See the articles Wood Allergies and Toxicity and Wood Dust Safety for more information.
Pricing/Availability: Most commonly available as flooring planks, Timborana is occasionally sold as woodworking lumber or turning blanks. Timborana’s price tends to be above average for an imported hardwood.
Sustainability: This wood species is not listed in the CITES Ap- pendices or on the IUCN Red List of Threatened Species.
Common Uses: In the United States, Timborana is used mainly for flooring material. It is also occasionally imported as turning stock. Within its native range, Timborana is also used for heavy construction, interior millwork, and furniture.
Comments: None.
Related Species: None available.
Source: Wood Database
(https://www.wood-database.com/timborana/) Alternate name: Timbauba – named for an area and city in Brazil 20 called Timbauba Other names can be found at: www.countyfloors.com/species_timborana.html Pen kit from Craft supplies USA is called the Chrome/Gold Artisan Aero. It’s billed as “small enough to go anywhere,” “has the feel of a full sized pen,” and “gives the two tone plating with decorative accent a simple elegance.” Cost of the pen kit is $10.95. Bushings are $3.95 and the 23/64” drill bit (HSS Brad Point) is $11.05. Get the combo drill bit and bushings for $13.50.
What Does a Timborana Tree Look Like
I wished I knew the answer. I was not able to track down any im- age that would identify itself as a Timborana. I also tried using al- ternate names and species names and it just got more confused. There were not many images of products using the wood from a Timborana except flooring. Which brings up a topic worth men- tioning (or perhaps not!). From the many woods that I have re- searched, the uses for these woods almost always are the same with little variation. For the most part, woods are used for ve- neers, flooring, construction (usually heavy or general), furniture, cabinetry and small turned objects. Some also are used for guitar soundboards, boatbuilding, plywood, archery bows , boxes, crates and billiard cues. Other uses involve the fruit of these woods for medicine and food sources. No specific point to this except for what it’s worth to anyone who reads this missive. ** Tom Leonard Uses for Timborana 21
Small turned object— Ring
Furniture
Torus Ring
Exotic Wood Slabs for big projects Flooring from Cook Woods HOW TO MAKE A LOG BLANK FIT IN YOUR 22 BANDSAW
In a previous article I presented a way to turn a Cherry blank with a rotted center. This wasn’t the only problem I had with these Cherry logs. The first 2 were small enough to round off on my bandsaw but the rest prove to be to thick to round off. Unfortunately, I cut these logs last spring before I wrote the articles on cutting a log for bowl blanks. If I had cut out the outer edges of the log first I would not have had the problem. Essentially it was the size of the log that I failed to account for with respect for my bandsaw.
See www.woodworkersjournal.com/cutting-bowl-blanks-chain-saw/ as a review to see what I should have done. But now how could I shave off the outer portion of the half log to get it small enough to put through my bandsaw. I had built a small support for cutting logs and it worked well for halfing the log but would not work for trim- ming off the side of a curved half log. Reviewing many techniques I decided to do something similar to how wood is stabilized for re- sawing on a bandsaw. Simply put, the wood is screwed or otherwise attached to a rip fence. My version would be to attach a piece of plywood to my log support and then screw the log onto the ply- wood. The screws would be in places that would effect only areas that would be removed in turning. ** Tom Leonard
My well used “saw
buck” is a simple construction of 4 short 2x4 boards.
A piece of ply- 23 wood is at- tached to the longer cross 2x4. The log is attached to the plywood board with a screw. I used one screw here but the log tended to work loose during sawing and a second screw was added for stability.
Side view showing how log is set on the saw buck when attached with screws.
View after cut- ting bark side of log to get the log to a width that will fit on the bandsaw. Woodturning Seminar in Madison 24
Hi Folks, my local AAW chapter, Badger Woodturners, is hosting woodturner extraordinaire Jim Piper for a 3 day event February 23-25. Jim has recently been featured in the AAW Journal, and the UK’s Woodturning Maga- zine. He’s a fantastic artist and we’re lucky to get him to our neck of the woods. Please see the attached flyer to learn more.
Registration is online only. Below are the links for the various days. Look to the right hand side of the page for the registration button. The hands-on days are lim- ited to 8 participants. They are filling fast, so if you want to do those, don’t wait!
Saturday is demo day: http://bwt.clubexpress.com/ content.aspx? page_id=4002&club_id=411146&item_id=915221
Sunday hands-on: http://bwt.clubexpress.com/ content.aspx? page_id=4002&club_id=411146&item_id=915230
Monday hands-on: http://bwt.clubexpress.com/ content.aspx? page_id=4002&club_id=411146&item_id=915237
Please share with all your fellow woodturners ! Kind re- gards, Brent English
Next Demonstration by Mark Palma 25 Sanding, Scraping and Surface Enhancements The Demonstration: As much as turners like to turn, many whine about sand- ing. Sometimes the bowl gouge god isn't smiling upon them and they experience dreaded tear out. Now you can have a plan short of try- ing to hide it under a thick coat of polyurethane!
The demonstration will start with what scrapers and abrasives can do for turned work and some tips on how to get more out of scrapers. The difference between negative rake scrapers and conventional scrapers will be discussed, as well as sharpening tips.
In this demonstration Mark will take us through the science of sanding, starting with how to pick abrasives, grit selection, sanding techniques to avoid drudgery, and when to stop sanding.
Mark will the go through a category of products he has coined "surface enhancers" such as EEE Shine, Yorkshire Grit, Dr Kirk's Abrasive system, some automotive buffing products, and advanced abrasives such as MicroMesh and Abralon to help us understand when to use these products, how they work and how they impact finishing options.
As always Mark will be knowledgeable, long winded and opinionat- ed. (Feel sorry for his children).
The Demonstrator:
Mark is a long time member of the Chippewa Valley Woodturners Guild and has given many demonstrations involving finishing, em- bellishments, tools and safety issues in the shop. **
26
Meetings are first Wednesday of the month at 7 pm. Open house—Coffee and Chips - is the second Saturday of the month from 8 am to 12 pm Meeting Dates and Demonstrations
February 6— Mark Palma—Sanding, Scrapping and Surface Enhancement March 6— Tom Leonard—Pen Finishing (tentative) April 3—Mary Weider—Segmenting May 1—Jeff Fagan—Chips and Tunes June 5—John Layde—Tenon On—Tenon Off July 3— To Be Announced Open House-Coffee and Chips Dates February 9 March 9 April 13 May 11 June 8 July 13
Meetings and Coffee and Chips are held in the Eau Claire In- sulation building at 1125 Starr Ave on the northeast side of Eau Claire, Wi. Board of Directors for 2018 27
President Duane Walker 1-715-577-2248 [email protected]
Vice President John Layde 715-834-9371 [email protected]
Treasurer/ Randy Patzke Membership 1-612-845-6185 [email protected]
Secretary John DeRyckere 715.838.9480 [email protected]
Program Director Mark Palma 1-612.991.7733 [email protected]
At Large Director Joe Nycz 1-715-937-2803 [email protected]
Non Board Positions
Librarian Dennis Ciesielski 715.233.0236 [email protected]
Newsletter Editor Tom Leonard 715.831.9597 [email protected]
Web Master Jerry Engedal 712.834.1022 [email protected]
Photos of Show and Tell / Gallery items provided by : Bruce Lindholm