Metalwork mallets

large diameter heads & long reach heads in double wedge, round & flat
knoba - metalwork mallets

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Heads are home grown & seasoned holly, wedges are mahogany & handles are beech.
knoba - metalwork mallets

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Handles turned from old table legs, spoke shaved ovoid, danish oiled and burnished smooth with 00 wire wool.
knoba - metalwork mallets

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Added extra weight with heated and shrunk rings
knoba - metalwork mallets

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3 smaller mallets, beech dowel handles, holly heads.
knoba - metalwork mallets

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All heads danish oil soaked in poly bag, finish left on heads
knoba - metalwork mallets

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knoba - metalwork mallets

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knoba - metalwork mallets

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Materials:
Large heads: 2 x 125x50 mm o/d (5"x2" o/d) holly
Long reach heads: 2 x 180x40 mm o/d (7"x1 1/2" o/d) holly
Small heads: 3 x 100x32 mm o/d (4"x1 1/4" o/d) holly
Large head handles: 2 x 280x40 mm o/d (11"x1 1/2" o/d) beech
Long reach head handles: 2 x 325x40 mm o/d (12 1/4"x1 1/2" o/d) beech
Small head handles: 3 x 330x15 mm o/d (13"x19/32" o/d) beech
Danish oil
00 Wire wool

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Wood-database.com – holly & beech

Colron – refined danish oil

Liberon – steel wool

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Test lead rack

Copper, brass, stainless, aluminium. It rotates.
knoba - Test Lead Rack

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Aluminium top tray & forming buck
knoba - Test Lead Rack

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Buck formed. Aluminium top tray formed
knoba - Test Lead Rack

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Brass upper rack and shaping forms
knoba - Test Lead Rack

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Complete assembly
knoba - Test Lead Rack

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Machined & beaten copper bolt, tray, turned copper spacer
knoba - Test Lead Rack

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Drive screws, machined & shaped brass rack piece
knoba - Test Lead Rack

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Machined aluminium wheel, copper spiky things, brass & stainless tynes, copper nut, m6 grub screw
knoba - Test Lead Rack

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Copper spiky things
knoba - Test Lead Rack

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Assembled
knoba - Test Lead Rack

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Upside down
knoba - Test Lead Rack

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Fitted to my electronics bench
knoba - Test Lead Rack

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Sumptuously disposed with test leads
knoba - Test Lead Rack

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Tray carrying nik-naks & bits
knoba - Test Lead Rack

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Cad file below
knoba - Test Lead Rack

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knoba – Test Lead Rack – 2016.dxf

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Hot tongs

long reach 24″ tongs made from 1″x3/8″ (25mmx10mm) steel bar.
knoba - Resistor Hot tongs - 01

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Heated, viced up & twisted
knoba - Resistor Hot tongs - 02

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9″ long reforged from old pincers, great for handling hot metals & acids
knoba - Resistor Hot tongs - 03

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knoba - Resistor Hot tongs - 04

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Bumping file

Bumping file for car bodywork, made from old straight file
knoba - bumping file - 01

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Double ended with reversible “plasti-dip” handle.
knoba - bumping file - 02

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Smoothed section in centre for index finger.
knoba - bumping file - 03

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Plasti-dip – Specialty coatings

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Hand graver

Hand graver for engraving metal.

Iroko handle, cast & machined brass body, 1/8″ hss lathe tool, m4 grub screws.
knoba - hand graver - 01

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Handle is flat on one side to allow the tool a low attack angle.
knoba - hand graver - 02

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knoba – Hand graver – 2016.dxf (CAD file link below)
knoba - hand graver - 02

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knoba – Hand graver – 2016.dxf

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Nogging master for arched wood roofs

Component parts overview…
knoba - Nogging master - 01

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2″ by 2″ softwood, M8 coachbolts.
knoba - Nogging master - 02

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Assembled.
knoba - Nogging master - 03

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Folds up.
knoba - Nogging master - 04

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Machined a nice thumb nut for it from aluminium.
knoba - Nogging master - 05

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Nogging master measuring dwang geometry…
knoba - Nogging master - 06

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Place on timber (3″ x 2″ here), mark & cut!
knoba - Nogging master - 07

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knoba - Nogging master - 08

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Notes.
• Perlins can be continuous or split form.
• Saves time.
• Eliminates waste, cost & mistakes.
• Inexpensive & easy to make.

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*** Mk2 incorporates the “Plate Pilot” for accurate ‘birds mouths’ on the wall plate / 1st perlins nogging.

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Rivet sets & snaps

No go with any tool suppliers so got this chisel set off ebay…
knoba - Rivet snaps & sets

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Annealed.
knoba - Rivet snaps & sets

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Figuring out what I want and what can get away with. A set of Starrett radius gauges helped me figure out the radii for the tool grinding.
knoba - Rivet snaps & sets

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Machined, stamped, hardened & tempered (to suit: 3/32″, 1/8″ & 5/32″ diameter shank rivets)
knoba - Rivet snaps & sets

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Tried the “heat and hammer a ball bearing in” method, it just made a mess.
knoba - Rivet snaps & sets

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Anvil end. 2 snaps (one used as a hold-up) & a set for each size.
knoba - Rivet snaps & sets

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Jay Cee – Solid Round Head Rivet Specifications

Rivetking.com – Solid Rivet Design Considerations.pdf

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