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Introduction: This 4-day course will cover Rack and Snail strike movements. The mainsprings must be enclosed in spring barrels, not open or in “boxes". Also, NOT a count-wheel movement. See photo of barrels.
Movements made in America, England and Germany are good repair projects. These movements should all have rack and snail strike systems. See the main photo above.
Prerequisite: CR100 Kitchen Clock Repair
What you will learn: We will briefly review the basic skills from the prerequisite class, Clock Repair 100. In addition, appropriate nomenclature, specific to spring barrel clocks as well as new skills in mainspring and spring barrel tooth repair and rack and snail strike adjustment and repair will be covered. Students will learn to use mainspring winders for springs in barrels, clock timers, and measurement and calculation of the strength of replacement springs for spring barrels.
What you will need: Students must find and bring a two-train, rack and snail movement with main springs in barrels, not open or in boxes. Movements must include all parts including pendulum, springs, suspension springs, etc. These are routinely available through eBay or inside English or German mantle clocks for sale at local antique stores. Smiths and Enfield are two English makers that are plentiful.
French clock movements, round movements, or Gustav Becker movements are NOT appropriate for this class.
Tools: In addition to everything you used in the CR100 Repair class, please bring a Drill Press vise or machinist vice (Palmgren No. 10 recommended), Jewelers Saw with No. 1 and No. 2 blades and a set of cheap needles files that will be modified in class.
Fee for this 4-day course is $180.
If you have questions, email the Instructor, Tim Brownlee.
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