The Loess Hills Wood Turners Club

Chapter 151 of AAW ---- Monthly News Letter ---- February 17, 2008

Next Meeting:

Tuesday March 11th, 2008. 7:00 P.M

Meeting will be held at Chuck Smith’s shop.

(Map on last page)

Bring something for Show and Tell!

Bring $25.00 for 2008 dues!

Shop Tour:

Saturday Feb 23, 2008 9AM to Noon

Every one is invited for a Shop tour this weekend with Gary Scott

Gary Scott’s shop is at 3309 Paddock Road, Omaha, NE. 68124, Phone 390-0178

Coffee and donuts will go good with the wood shavings

President’s Report:

By Gary Scott

I just got back from a cruise to the Panama Canal. A lot of water and no trees at sea, but at the stops there were some. It was a good vacation and a few days of warm weather away from all this cold and snow.

Dan and Jeff's did a fantastic demonstration and building a three legged stool next month will be will be a great project. It will give me one more thing to get done.

I am not good at spelling and use spell check all the time, but I read the following article from Cambridge University:

Oiny srmat poeple can raed this.

I cdnuilt blveiee that I cluod aulacity uesdnatnrd waht I was rdanieg. The phaonmneal pweor of the human mind, aorccdrnig to a rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht order the ltters in a word are, the only iprmoatnt thing is that the frist and lsat ltter be in the rhgit pclae.

The rset can be a taotl mses and you can still raed it wouthit a porbelm. Tihs is becuseae the human mind deo not raed ervey lteter by istlef, but the word as a wlohe. Amzanig huh? Yaeh and I awlyas tghuhot spiellng was ipmorantt. If you raed this psas it on!!

President’s Report: Cont.

With that said: Think about writing an article for the newsletter. We are all interested in what each of you are working on. New techniques or pretty much anything related to woodturning would be of interest to your fellow members. Pictures to illustrate what you are talking about are always

good. Pictures should be digital images. We will probably not be able to include pictures in the email copies of this newsletter because many computers and email systems cannot handle the large files. But if you send pictures for your article, we would include them in the newsletter copy

posted on our website. Curt would like to try it!

Any suggestions to improve the Club will be greatly appreciated. Please fee free to discuss them with me or any board member.

Secretary’s Report:

By Joe Robbins

Two guests were brought to the meeting, Gary Shipley (brought by Joe Robbins)

David Kucera (brought by  Ken) 

Gary Scott brought up please pay up dues of $25.00 as soon as you can. 

Current treasures report is $2760.50 (With 6 members paying on the night of 2-12) 

Tom brought up an upcoming 3 day event starting May 3, 4, & 5th. Gentleman's name is Jamie Donaldson and he specializes in winged and square bowls. A turner for over 20 years and a retired AAW photographer.

May 3rd will be $20.00 for members, $35.00 for non members, this is a watch and learn day

May 4th & 5th will be for hands on, no more than 10 people at one time, the cost for this day is $40.00 for members, $65.00 for non members, this will include lunch, wood to work on. Turners for the 4th & 5th must bring their own tools, shop aprons, masks, face shields, etc. if your have signed up for one of the hands on classes.

Jeff brought up that the club should purchase 2 mini lathes for the club, Tom suggested contacting the Jet representatives, sounds like Dan will do some checking on prices for the club.

A summer picnic will be June 7th or 8th and Ken Grigsby has volunteered to be the chair person.

The rest of the evening was the traditional show and tell of either finished projects or works of art still in progress.

Afterwards there were some hands on turning on the many mini lathes for some of the members to sharpen their techniques and have some fun in using a mini lathe.

Treasurer’s Report:

By Chuck Smith filling in for John McAdams

The club’s account balance is; $2760.50

Librarian’s Report:

By Rob Connor

The club Library has many woodturning books, videos and DVDs available for check out at the meetings. If you have any books or videos to donate to the library for other people to use or any suggestions on a specific purchase, please talk to Rob Connor 315-9854. Please keep checkout time to one month to maximize the libraries resources.

Coming soon ------- A full list of the Club Library on the web site!

Publisher/Editor’s Report:

By Curt Norman

This News Letter is for the benefit of all our club members! Please give me your tips or information to pass on to our members in the next issue.

Contact Curt Norman at (402) 553-7222 or send E-mail to Curt@woodturner1.net

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Loess Hills Woodturners Club Web Site; www.LHturners.org

Vacuum Chucking

The basic principle of vacuum chucking involves the science of the atmosphere around us. Normal atmospheric pressure, at sea level, is just under15 pounds per square inch. That means if we create a vacuum, such as a vacuum chuck, the barrier between the atmosphere and the vacuum, in this case our turning, has a pressure exerted upon it by the atmosphere.

Vacuum is measured in inches of mercury or hg. A perfect vacuum is 30 inches of mercury (30 hg) and cannot be obtained on the surface of the earth. Most of the small pumps we use for our type of work are able to provide 22 to 28 hg, and this level of vacuum is more than sufficient for our purposes. In round numbers, the pressure exerted by the atmosphere is about one-half pound of force per square inch for every inch of mercury. This sounds confusing. Your system will have a gauge that reads from 0 to 30 hg. Divide the number on the gauge in half to find the pounds per square inch of force exerted on the turning. As an example, you have built a vacuum chuck that is 6 inches in diameter. You attach it to the lathe and apply vacuum and hold a turning. - The 6 inch diameter chuck has just over 28 sq. ins. of surface. If you run the vacuum up to 20 hg, the external pressure is about 10 PSI and the force exerted against the turning is a total of 280 pounds. 28hg increases the pressure to 392 pounds of force.

Next Meeting Location:

Chuck Smith’s Shop

21593 Hawley Road Glenwood, Iowa

See Everyone At The Next Meeting And Remember,

Turn Safe!!!!!!!!!!!!!!!!