Toothed drive centre

Sprung loaded silver steel single point captivated by m4 grub screw
knoba - toothed drive centre

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Arbor machined to fit one of my 5c lathe collets
knoba - toothed drive centre

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knoba - toothed drive centre

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knoba – Toothed drive centre – 2015.dxf (link below)
knoba - toothed drive centre

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knoba – Toothed drive centre – 2015.dxf

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Wood carving mallet

Made from stock; copper, holly & cherry…
knoba - wood carving mallet

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knoba - wood carving mallet

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The wood database – European Cherry

The wood database – English Holly

Matweb – Copper datasheet

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Single bevel edge fishtail carving skew

Someone gave me this today (it’s a Marples & Sons 1/2″ bevel edge chisel)…
knoba - single bevel edge fishtail carving skew

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It’s in pretty poor shape…
knoba - single bevel edge fishtail carving skew

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The sole of the blade…
knoba - single bevel edge fishtail carving skew

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The top of the blade (the bevel edges can just be made out)…
knoba - single bevel edge fishtail carving skew

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Here it is again after a couple of hours reworking…
knoba - single bevel edge fishtail carving skew

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The blade has been: extracted, reforged, re-shaped, ground, hardened, tempered, lapped, polished & stropped.
knoba - single bevel edge fishtail carving skew

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The handle has been: re-turned, sanded, waxed & polished.
knoba - single bevel edge fishtail carving skew

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A sweet tool…
knoba - single bevel edge fishtail carving skew

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Leather Edge Bevellers

Made from medium carbon steel, brass & spalted cherry.
knoba - leather edge bevellers

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knoba - leather edge bevellers

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knoba - leather edge bevellers

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Head knives

Head knives for cutting & skiving leatherwork.
knoba - head knives

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Made from spalted silver birch, brass & medium carbon steel alloy, mirror polished with beeswax finish.
knoba - head knives

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Donor steel from old saw blade (old non tct blade). Took 2 teeth off to see if the metal could be hardened.
knoba - head knives

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Heated both teeth to cherry for 3 min, quenched one & left other to cool.
knoba - head knives

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My quenching bucket. Spark tests (grinding) on the 2 teeth gave good results.
knoba - head knives

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Cleaned up both sides with abrasives (flap wheels, silicon carbide discs, etc.).
knoba - head knives

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Stuck my templates to the blade…
knoba - head knives

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Cut them out with angle grinder.
knoba - head knives

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Centre marked a sharpening pivot point…
knoba - head knives

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Drilled that mark…
knoba - head knives

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Took off paper & made a sharpening jig for the belt sander.
knoba - head knives

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That’s how this is going to go…
knoba - head knives

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Sharpened & polished.
knoba - head knives

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Heated to cherry for 3 mins (12mm = 30mins soak time). Had to keep the torch moving to keep the blade hot over its entire surface.
knoba - head knives

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After quenching the blade but not the tang.
knoba - head knives

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Re-polished.
knoba - head knives

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Seasoned birch from my garden…
knoba - head knives

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Turned some handles for my blades…
knoba - head knives

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With thanks to Cap’n Eddie Castelin for his superb wood turning videos (link below).
knoba - head knives

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knoba - head knives

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knoba - head knives

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Machined up some brass ferrules and epoxied on.
knoba - head knives

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Tangs were tapered (4° included angle) to common machine taper specs (see link below)
knoba - head knives

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Very pleased with results, they feel great, strop well and hold a good wire!
knoba - head knives

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knoba – Leather Head Knives – xcf files – 2015.zip (link below)
knoba - head knives

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knoba – Leather Head Knives – xcf files – 2015.zip (link below)
knoba - head knives

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You tube – Cap’n Eddie Castelin

knoba – Leather Head Knives – xcf files – 2015.zip

Wiki – Machine taper

Wood Database – Silver birch

Colron – Refined Finishing Wax

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Electro etch pen

Electro etch pen for id marking hardened steels & alloys
Electro etch pen

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knoba – Spur drive

Vintageprojects.com – Etching pen plans

Rapid Electronics – Electronic Components

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Spur drive

Spur drive for wood-turning on lathe using collets
Spur drive

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Spur drive

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Mini spur drive
Spur drive

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