Flex Shafts Demystified
Confused by the dizzying array of rotary burs, bits, and mandrels on the market? Ready to invest in a flexible shaft machine (or have an old one that needs some TLC), but don’t know where to start? In this essential skill-builder, we will cover all the flexible shaft machine basics, from choosing the right models of motor, handpiece, and rheostat to maintenance and choosing the right bit for the job at hand. Through a series of detailed demos and Kristin’s thorough handouts, students will gain a firm understanding of rotary bits, from drilling, cutting to grinding and polishing.
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Please read the Materials & Tools tab!
Meet the instructor
Kristin Mitsu Shiga is a hapa metalsmith, educator and arts administrator who has played a variety of roles in the arts since 1992. You may recognize her as the ringmaster of Metalwerx’s annual Virtual Spring Symposium!
From a long line of educators, Kristin is passionate about teaching and has had the opportunity to share with students at venues all over North America including Penland, Arrowmont and Haystack Mountain schools of craft. Her proudest achievements have been establishing nonprofit metalsmiting studios and programs that continue today in New York (OCM BOCES), Oregon (Multnomah Arts Center), and Hawai'i (Donkey Mill Arts Center).
As a maker, Kristin pursues projects that tell a story and actively engage her audience. Her solo work centers around one-of-a-kind wearable art and holloware with an aesthetic that has been described as a "marriage between her Japanese heritage and influences from her early explorations in architecture and the Modernist design movement." Her ongoing series, "Unfinished, Damaged & Broken" explores the significance of age and wear on common objects while protecting, bolstering or celebrating their hard-won imperfections.
Kristin has shown her work internationally, and is included in several notable collections, including the Kamm Artful Teapot Collection and the Permanent Collection of the White House. You will find her work published in numerous books and magazines, including Art Jewelry Today, The Art of Enameling, Metalsmith’s 2017 Exhibition in Print, and several of Lark’s 500 Series books. Learn more about Kristin’s past work on Oregon Artbeat (segment originally aired in 2010).
Materials & Tools
The following supplies will be used for course demonstrations and objectives. Click the red text to be redirected to a page where you can reference the item. Students are not required to have these supplies during the course - observers are welcome.
- H.30 Handpiece (Keyed Chuck)
- H.20 Handpiece (Quick Release)
- H.15 Handpiece (Hammer)
- SR Motor
- LX Motor
- SCT Foot Pedal
- SXR Foot Pedal
- Threaded Anvil Points
- Pavé Tip
- #30 Belt Sander Attachment
- #30 Drill Press Attachment
- Handpiece Holder
- Foredom Maintenance Kits
- Foredom Dressing Stone
- Fordom #30 Handpiece Comfort Grip
- 3/32" Reinforced Stainless Steel Mandrel
- 3/32" Wide Head Stainless Steel Mandrel
- 3/32" Slotted Mandrel
- Wolf Sanding Mandrel Set
- 3/32" Stainless Steel Snap-on Mandrel
- 1/8" Point Mandrel
- Bur-Life Paste
- Bur-Life Stick
- Bur-Life Liquid
- Bur-Life Bench-Mount Kit
- Silicone Polishing Pin Set
- Sandpaper Cartridge Rolls
- Uniform Shank Drill Set
- Diamond Core Drills
- Large Diamond Core Drills
- #61-80 Drill Index
- #1-60 Drill Index
- 18-piece Setting Bur Set
- 18-piece Ball Bur Set
- 18-piece Cup Bur Set
- 24-piece Bur Assortment
- Dedeco Try 'Em Silicone Assortment
- Dedeco 7/8" Polishing Assortment Kit
- Dedeco Silicone Midgets Assortment
- Dedeco Sunburst Dual Radial Disc Kit
- Magnum Sanding Discs - 320 grit
- Magnum Sanding Discs - 220 grit
- Aluminum Oxide Separating Disc
- Paper-Backed Snap-On Sanding Discs
- Aluminum Oxide Point Set
- White Arkansas Point Set
- Dedeco Heatless Silicon Carbide Wheels
- Pumice Wheels - SE (Stone Safe)
- Dedeco Silicone Cylinder Polisher - Extra Fine
- Dedeco Silicone Cylinder Polisher - Fine
- Eve Silicone Cylinder Polisher - Medium
- Eve Silicone Cylinder Polisher - Coarse
- Shofu Flat-Edge Brown (Medium)
- Shofu Flat-Edge Green (Fine)
- Shofu Knife-Edge Brown (Medium)
- Shofu Knife-Edge Green (Fine)
- Medium Mounted Combination Bristle Brush
- Soft-End Bristle Brush
- Mop Buff
- Sunshine Cloth Buffs
- Simulated Leather Wheel
- Flat Felt Buffing Wheel
- Soft Felt Polisher
- Felt Cylinder Buff
- PSA Sanding Discs
- Mini Mounted Fiber Wheel
- Minimat Texturing Wheel
- Carbide Cylinder Burnisher
- Margin Roller
- High Speed Steel Cylinder Burs
- Twincut Concave Burs
- Sintered Diamond Cutoff Wheel
- Diamond Bur Variety Set - 240 Grit
- Wax Bur Set
- Clamp-On Motor Stand
- Swing-Away Motor Stand - 42"
- Extra Swing-Away Arm
- Double Motor Hanger
- Flex Shaft Handpiece Holder
The following items are available from West Coast Findings. Email John Vesowate at [email protected] or call 503-227-4401.
- Flex Shaft Bit Kit
- Dedeco White Flexie - SE
- Dedeco White Flexie - KE
- Blue Polyurethane - SE
- Miracle Gold SE
- 3/32" Long Screw Mandre