THE
DEC` 2006 THE MODELLER VOL 37 No 4
WEB SITE: www.tsme.ca Pictures from the meetings will be posted with The Modeller that is posted on this website
TSME CHAT LINE: tsme@yahoogroups.com
It’s time to catch up again on what your fellow members are up to – come hear all about it, at our next meeting on –
FRIDAY 8 DECEMBER 2006 AT 8.00pm; the usual place -
FOR THE EVENING’S PROGRAM, YOU CAN EXPECT TO BE HEARING FROM:
RICK SCHEIBL can give us some insight into welding faults,
JOHN CHAPPELL’S guest PIERS DREWES will talk about house type solar and wind electric power generation
BILL HUXHOLD has been making some (tiny) Steam Turbines. He will talk about their construction
ERIC KINSLEY has built a Horizontal Engine and will bring it in to show
BERT deKat has some pictures to
show from his recent visit to the
DON CARR will give his “Part 2” on cheap and effective tooling
And if you have a project you are currently working on, or recently finished – please bring it along and we will do all we can to fit your item into the program.
If you have some item that you think might be of interest to members, please tell anyone on the Exec – we welcome more Program items!!
Please use the new TSME SUGGESTION BOX. Write down what you want to see more (or less) of; program ideas; items for sale (or wanted) to put in the modeler, or any comments or feedback you wish.
WHAT’S UP & COMING : MEETING DATES 8 Dec, 12 Jan 2007, 9
Feb, 9 March, 13 April, 11 May, 8 June @
$30.00 for the coming
year. Your cheque or cash will be happily
accepted by our stand in Treasurer – KEVIN CLOSE Please let KEVIN know,
however, if you feel you have difficulty in affording to pay the dues: we wish
you to remain a member. By mail? Kevin’s address is
PLEASE NOTE: If you
write a cheque – please make it payable to “
MEMBERSHIP LIST: We plan to get the 2006/7 Membership List out with the January 2007 edition of The Modeller. This will include members who have paid for 2006/7 season. So please, if you still have not renewed your subscription, and you wish to be included in the list, please pay VERY soon – like NOW !
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It is with much sadness that we report the death on Friday 3 November, of longtime member HARRY BONEHAM. Harry had not attended a meeting for several years. Harry will be remembered for his detailed slide shows of his machining techniques in which he was very skilled, being a toolmaker by training. He had built many models: a 3 ½” gauge Tich, the far more complex 3 ½” gauge Britannia, The ERA race car engine, A Triple Expansion Engine, A Harley Motorbike engine, and most recently – a model of the Gabron Brillie engine to name a few. These all worked. We offer our sincere condolences to his family |
TSME LAPEL PINS AND CRESTS: Only sold at the meetings
Treasurer, KEVIN CLOSE, has these available: One for $3.00, two for $5.00 - BUY YOURS NOW!
NOVEMBER MEETING - IN CASE YOU MISSED IT,
DAVE SAGE talked about powder coating, which was developed in the 1940’swith a fluidized bed process. The electrostatic process was developed in the mid 1960’s, making the fluid bed obsolete. Dave outlined the characteristics of the various coatings and explained that, as there are no solvents involved, the process is environmentally friendly. The equipment required for the home set-up is: A charging unit capable of 40,000 to 100,000 volts. A Spray gun with powder paint container and which is hooked up to a high volume (low pressure – 10 to 15psi) compressor. The item to be coated must first be prepped – for steel – in iron phosphate, aluminum – etched. The item is then connected to the charger as is the paint gun. The spray paint picks up the charge and adheres very strongly to the “target”. After coating the item must be baked at about 4000 F. A polyester tape is used for masking (it must be able to withstand the 4000 F). Castings can be a little tricky as they will probably outgas and cause bubbling of the coating: this can be greatly reduced by spraying while the casting is hot. There are many different coating types and colours. (Apologies to Dave, if anything is incorrect! Ed.)
DAVE POWELL explained why he has started on making about 10 Mechanical Lubricators. He first explained that the displacement lubricator is not so good under a variable load and can give a varying supply of oil. The mechanical lubricator is more consistent in its supply, but fiddly to make. Dave needed 4 for his present fleet of 4 steam driven machines, so he decided to make a few extra at the same time! The tanks and tank lid are in aluminum. The design is based on LBSC’s ratchet type design with some strength improvements added by Dave. The other important improvement is the use of ‘O’ ring type check valves.
JEFF KINGMA showed his George Thomas type Pillar Drill he made using a microscope stand modified to suit drilling operations. The stand can also be altered to become a light duty tapping fixture. The drill is driven by a 9volt motor from a Princess auto battery. Approx max speed is about 4000rpm. The drill chuck is a Jacob’s #0.
GERRY REED explained how to set up square stock in the 4 jaw lathe chuck: Gerry recommended that you check first that the stock is actually square and true. A first step is to get the stock roughly centred using the chuck concentric rings as a guide. Then, using a dial gauge, check that each flat is horizontal – the lowest reading one each flat indicates when this is so, then rotate each flat and adjusting up or down, until the dial indicator shows the same reading for each flat. If you need to move the stock a bit further out of the chuck, you should recheck it is still centred. Another, approximating method is to turn a small diameter on the stock end and compare the turned portion for its centred location in the square end, reposition if needed and make another cut.
BILL SALT managed to get some ¾” copper tube for his Traction Engine, 6” diameter boiler. He has been experimenting with expanding the tube into the steel tubeplate. Bill mentioned that it is important to make sure that the tube hole edges are not sharp, otherwise they may cut into the tube and weaken it. He tried a method described in Live Steam Magazine using a three roller tool to expand the tube. It took 5 attempts and modifications to the tooling before he felt confident of success, and he described what he went through to get to the final tool.
FOR
WANTED: By DON CARR. Don is looking for the current phone
number or address of Howard Hunt (formerly of
WANTED: by BOB McDONALD, Any Model Engineering books or magazines.
FOR
FOR
Bill
Clothier lives in
NEW MEMBERS INFO: no one this past month
Dave Bray, email: davybray@aci.on.ca or membership@tsme.ca
PICTURES FOR THE TSME WEBSITE
If you have picture/s that you think are good for posting on the TSME website, please email to KIM TYSON at webmaster@tsme.ca