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Connecticut HSM Group

Last Modified: 21 September 2015 07:17 MST

April 2010 Group Photo

April 2010 Group Picture

Home Shop Machining in Connecticut

There are hobby machinist groups scattered around the USA including a small HSM group in Connecticut. Our CTHSM group is congenial and freewheeling: no rules, no dues, just people getting together to learn new techniques plus share thoughts on machining and other topics that arise. Meetings are held in member shops, nominally on the second Sunday of the month at 2pm. Anyone interested in attending a meeting please contact me (via the link below on this page)for more info and travel directions.

The September 13th meeting was at Frank's shop in Plainville, attended by 19 people.

Light Micrometer At right is a Van Keuren light micrometer (click to enlarge). This is the predecessor to the supermic -- it uses a very accurate micrometer thread and a large dial with a vernier. This provides a resolution of 0.00001 inch!! The light source shown provides bars on an optical flat which show the pressure exerted on the sample. By setting the same number of bars for each reading the pressure is the same.

Train Wheels Hi-Speed Spindle At left is a set of train wheels fitted to their axle. The wheels were turned from castings like the one shown below the finished set. The castings are fitted with steel tires. Diameter is about 4 inches.

At right is a set of ER collets and a collet chuck in the process of becoming a high speed spindle for a mill. The collet chuck has ball bearings fitted and will be held in the R8 shown next to it. A separate motor will drive the spindle via pulleys and a belt; speed of 5000 RPM is expected.

Spindle Engravings At left is a very high speed spindle and several very small diameter drills used to drill holes in the 1/8" brass demo plate shown. Those who have attempted to drill holes less than 30 thou will appreciate all the small holes in the demo plate, especially the 9 thou hole.

At right are samples of engraving work. Lots of patience and a steady hand...

The October 11th meeting will be at my shop in Newtown.

As usual, bring items for demonstration and/or discussion. Plus items for the sale/swap/free table.

Home shop machining is often a solitary hobby, as are most hobbies now according to "Bowling Alone". The CTHSM group is an attempt to get area HSM's to know one another and thus make our hobby a little less solitary.

The much larger NEMES HSM group is 2-3 hours away so we share some members and occasionally have visitors from that group.

CTHSM Meeting Schedule

The CTHSM group has been meeting for several years now, mostly on the 2nd Sunday of the month at 2pm, but we deviate from this with some regularity. February has seen a couple meetings cancelled due to weather, the April meeting has not been held since Cabin Fever's new schedule conflicts, the May meeting is on the 3rd Sunday to avoid a conflict with Mother's Day, and we don't meet in July because many members are on vacation. Over time our meeting schedule has become predictably irregular...

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Pictures from our unusual "Music Machine Meetings"

A Few Pictures from prior CTHSM Meetings

GraverRest3 CTHSM_DiAcro Relief_Angle_Gauge CTHSM609 CTHSMAlexSaw RollieGS SilverBraze Rivett Ball Cutter CTHSMNov10 SketchUp Presentation CTHSM_Jan2011 Daves EnginesMar2011 Powder Coat Demo Apr2011 Steam Engine Wooden_Gears CTHSM_HotBlue CTHSM_Trike CTHSM_Master_MT4 CTHSM_MT2_Gauge CTHSM_Knife CTHSM_Ikea_Lamp CTHSM_Indicator CTHSM_Hole_Meas CTHSM_Parkerize CTHSM_CamVise CTHSM_Rifle CTHSM_UniVise CTHSM_AngleVise CTHSM_Ball_Handle CTHSM_Bishop CTHSM_Nemes CTHSM_wheel (1) CTHSM_Cow Catcher Ralph's Loco Locomotive Number Mike's Bender 5 cylinder air engine 4 cylinder air engine Eric's Divider Eric's Ball Cutter

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