The Sherline Miniature Machinist's Newsletter
Christmas Special Just Announced!
ï Save 15% on a 4400A or 4410A Lathe and Chuck Package.
CLICK HERE to learn more about the 2011 Christmas Special!
ï FREE ìMillieî Steam Engine Kit
Each 4400A lathe purchased on the Christmas special will also receive a free set of plans and materials to build the little oscillating steam engine called ìMillie.î Get started right away with a new project in your Sherline machine shop.
V8-powered R/C Drag Boat/Don Martin
When Joe Martinís book Tabletop Machining was first published in 1996 we included some photos of Don Martin and his Sherline shop plus the supercharged Conley V8 he had built. We recently received some new photos from Don with the engine installed in a custom drag boat.
Don Martin in his shop in a photo from Tabletop Machining.
This photo was also printed in Joeís book and shows the Conley V8 on the custom test stand Don built for it.
Now, many years later, Don is still building model drag boats, but the Conley engine is now a feature in his latest purple jet boat.
The Conley installed in ìPurple Passion.î
The above shot shows the whole boat.
A photo of the bottom of the stern shows the intake for the jet pump and the steerable nozzle. Don also custom machines parts for the steering gear and cavitation plates on the stern of his boats. (Photos: Don Martin)
Shop Tip of the month
Using the Threading Attachment with Riser Blocks in Place/Ron Lederer and Douglas Swink
(These tips are easy enough to understand that we didnít need to include photos.)
For links to this and 63 other handy Sherline shop tips, see the ìTipsî page at† http://www.sherline.com/pages/tips.htm.
P/N 3100 Threading Attachment ($125.00)
Since we are already talking about the threading attachment in the tips above, this seemed like a good time to remind all Sherline lathe users that the threading attachment adds a very important feature to your latheóthe ability to cut many different thread pitches. Almost no one could afford to purchase all the possible taps and dies to cut inch threads from 5 TPI to 80 TPI and metric threads from .25mm to 2.0mm pitch in both LH and RH directions at just about any diameter. This one important attachment makes all that possible. Rather than increase the cost of the basic lathe and build in a few gears so you could turn a half dozen or so common threads, Sherline chose to keep the basic machine cost as low as possible while offering a far more advanced treading set as an option for those who need this capability.
The P/N 3100 threading attachment is shown in place on the lathe.
The first thing you will notice when looking at the photo of the threading attachment in place on the lathe is that it is driven by a large handwheel while the motor and speed control are removed entirely. A power feed is also not used. While this may seem like a step backwards to those who are used to cutting threads on large lathes, the handwheel makes total sense when you consider the job of cutting fine threads on a small lathe. You donít need power, you need control. The small amount of metal being removed by the 60∞ carbide threading tool that comes with the set means a great amount of force is not needed. The relatively short travels involved also mean that the operator is not turning the Z-axis handwheel over long distances. The ability to stop the thread just when you get to the end of the threaded area or head of a bolt is also important.
The attachment includes a set of hobbed aluminum gears, (not plastic or nylon) that offer a large number of combinations. A 127 TPI gear converts between inch and metric systems so gears in either system can be turned.
For complete instructions on the use of the threading attachment, refer to www.sherline.com/3100inst.pdf. You will find this attachment can add a tremendous amount of functionality to your lathe.
Did you know?
ï The microscope attachments for the lathe (P/N 2126) and for the mill (P/N 2128) are still available; however, our microscope supplier has recently discontinued the microscope we used to supply with the attachments. We are currently searching for a suitable replacement, but for the time being the P/N 2125 lathe mount and microscope and P/N 2127 mill mount with microscope are not available.
ï Need small amounts of raw materials? Many places now offer small amounts of metal and plastic with no cut charges and will ship them right to your door. See www.sherline.com/online.htm for multiple sources.
ï If you are looking for a Christmas present for your favorite model engineer and are determined to ìbuy Americanî this year, please keep Sherline tools in mind.
Upcoming Model Engineering Shows
ï Cabin Fever Expoó
ï North American Model Engineering Society (NAMES) Expoó
Send us your show details and we will post them hereÖ
Joe Martin Craftsmanship Foundation News
ï Change of museum hoursóAfter a review of
recent attendance statistics it has been decided that for more economical and
efficient operation the Miniature
Engineering Craftsmanship Museum in
ï Four ship models added to museumóThanks to local ship modeler Michael Titone, the museum now has on display four highly detailed plank-on-frame wooden models of the USS Constitution, HMS Victory, HMS Supply and the Viking burial ship unearthed in Norway in 1904. See the Other Exhibits page on the museum web site for photos.
ï Museum hosts