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Next Meeting March 9, 2009
Howard County Senior Center
9401 Frederick Road
Ellicott City, Maryland
410 313 1400
7:30 PM.
Have dinner with us before the meeting
Double T Diner
10055 Baltimore National Pike,
Ellicott City, MD 21042
410
750 3300
6 to 6:30pm. Tell them to seat you with the Watch
& Clock Group.
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Club Officers
Board Members
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Meeting/Workshop Activity
WatchMaker Lathe Accessories by Bill Miller
"if he has the time to prepare"
Afterwards will be showing Striking Clock Theory Video
"Bring Popcorn"
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Tech Question for the next meeting:
Does a common Lyre Pendulum made for HM clocks actually work for temperature compensation?
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From the Pres.
Another month has gone by and the weather is getting warmer. Winter is slowly giving way to Spring, one of the best times
of the year.
I have been approved to do a monthly clockrepair class at Homewood Retirement Community off of Route 15. I want to give residents
a choice to spend their free time doing a more technical activity and it also gives my company exposure to new customers.
My first class, four residents came for the Introduction and this month I expect even more. We're using the Conover Basics
Book as a guide. It was fun to see the amazement in their eyes that an ordinary clock could be so complex.
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Hopefully we'll put to bed our HAM Safety Form after its finallized and approved. Your input is needed.
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Don't forget to Renew your HAM Membership for 2009!!
Al Takatsch
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Secretary Report:
HAM 9 February 2009 Meeting Minutes
In attendance were: Al Takatsch, Stan Craig,
Bob Rothen, Earl Knight, Leroy Roberts, Brett Louis, Dan Spath, John Ryea, George Tresansky, Bill Miller, Jerry Kincaid, Wilbur
Robinson, Larry Eichelberger, David Grau and David Hannemann.
To start the meeting off, Al Takatsch,
our president, asked all members to introduce themselves as well as provide information on their latest repair efforts.
Treasurer’s Report: Stan Craig provided Treasurer’s reports for November 2009, December 2009 and January 2009. We received our yearly donation from Casker for their advertisement in our newsletter as well as dues and
meeting income.
New Business: Our president, Al Takatsch, presented a certificate from American Watchmakers-Clockmakers Institute (AWCI)
indicating the Horological Association is registered as a 2009 Affiliate Chapter. AWCI
also acknowledged our charitable contribution of $25.00 to the AWCI-ELM Charitable Trust for continuing education.
The members also discussed the proposed
Safety Sheet for the Association and how to verify that members as well as visitors are acting responsibly in protecting our
safety. John Ryea is considering becoming the Associations Safety Officer. Bob Rothen brought up the issue of “informed consent” for members of the
Association and the signing of a statement indicating that Association, its officers
or members, could not be held responsible for accidents resulting from the repair of clocks or watches. This issue will be discussed at future meeting.
.Bill Miller indicated he was working on
a clock with original springs which brought about a discussion of the availability of clock and watch spring replacements. Apparently, American clock springs are available through suppliers such as Merrits
and Time Savers and Al Takatsch was going to contact them to verify that these springs were available. Unfortunately, it appears that the supplier of watch springs and clock from Europe has closed shop and
there are no known supply sources for their replacement.
Dave Hannemann won the 50/50 for this meeting
as well as 50/50 for the workshop on 26 January.
Respectfully submitted, David Hannemann, Secretary
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HAM 23 February 2009 Workshop Minutes
In attendance were: Al Takatsch, Stan Craig, Bob
Rothen, Earl Knight, Leroy Roberts, Brett Louis, Dan Spath, George Tresansky, George Painter, Bill Miller, Tom Koluch, Jack
Kennan, Wilbur Robinson, Larry Eichelberger, John Kuntz and David Hannemann.
The meeting was called to order by our esteemed
President Al Takatsch who provided each member in attendance with the following documents:
Horological Association of Maryland Release and Informed Consent Form and the Horoligical Association of Maryland Course
Outline for Workshop Safety. There was limited discussion among the members in
attendance. However President Al Takatsch suggested no decisions be made at the
meeting and requested the members review these documents and be prepared to discuss possible changes in the future.
Treasurer’s Report: Since this was a workshop meeting, there was no Treasurer’s report.
Secretary’s Report: Since this was a workshop meeting, there was no Secretary’s Report either.
Vice President Bob Rothen requested members to
contact him with problems, issues, areas for additional instruction so future meetings can be developed to address member’s
needs.
Dan Spath won the 50/50 for this meeting.
Respectfully submitted,
David Hannemann, Secretary
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Tech Column
Exerpts from the NAWCC message board about pivoting watch arbors. Some
of these drill bits can get quite small.
Twist drills of various lengths and configurations are generally available down to about .1mm or .004". The attached
photo below shows one at .008" and a shorter version .004". These drills are used where deeper holes are required than is
practical with Spade drills.
A couple of comments for anyone who may be considering Micro drilling with Spade Drills.
The depth of drilling with this type drill should be limited to about four times the diameter of the drill for safe drilling.
They can be used as an accurate center drill, but ONLY if held in a tailstock that is properly/accurately aligned with the
headstock IN ALL DIRECTIONS. The success of micro drilling will have more to do with equipment than skill. Sensitive leadscrew
feed as well as observation of the drilling process under quality optics will limit breakage.
The spade drill shown
in the attached photo was ground to .04mm (.00157") or about half the diameter of a Hair. Sorry about the Photo quality. It
will be used next week at the School in Columbia to drill a hole in a .07mm (.00275") pivot as part of a challenge.
Jerry
Kieffer
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