Chop saw mitre framing jig

Easy to make (ply & baton) checks accuracy of chopsaw 90° cut
knoba - Chop saw mitre framing jig

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1 joint 1 cut, or, 2 joints 1 cut…
knoba - Chop saw mitre framing jig

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Perfect.
knoba - Chop saw mitre framing jig

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Link to CAD file below
knoba - Chop saw mitre framing jig

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knoba – Chop Saw Mitre Framing Jig – 2017.dxf

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Ac Power Supply

Aluminium frame pattern for recycled multitap transformer
knoba - Ac Power Supply

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Transformer core shaping buck
knoba - Ac Power Supply

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Frame made
knoba - Ac Power Supply

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knoba - Ac Power Supply

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Donor psu…
knoba - Ac Power Supply

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Ac system internals in
knoba - Ac Power Supply

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240vac @ 50Hz in: 1, 3, 6, 9 & 12vac @ 50Hz out
knoba - Ac Power Supply

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Illuminated the meter.
knoba - Ac Power Supply

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New laminated fascia (cad file below)
knoba - Ac Power Supply

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New laminated meter scale (cad file below)
knoba - Ac Power Supply

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Schematics (Fritzing file below)
knoba - Ac Power Supply

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knoba – Ac Power Supply – Fascia – 2016.dxf

knoba – Ac Power Supply – Meter Scale – 2016.dxf

knoba – Ac Power Supply – Schematic – 2016.fzz

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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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Laden with sumptuous 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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Jewellers bench plate

Plate is 5mm x 200mm, spot welded clamp bracket is 2.2mm, mild steel.
knoba - jewellers bench plate - 01

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Clamp is 6mm x 25mm, m8 threaded bar, turned piece on end
knoba - jewellers bench plate - 02

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Finish is sulphuric acid pickling & satin black cellulose
knoba - jewellers bench plate - 03

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Good stability, very solid.
knoba - jewellers bench plate - 04

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knoba – Jewellers Bench – 2016.dxf (CAD file link below)
knoba - jewellers bench plate

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knoba – Jewellers Bench – 2016.dxf

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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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Leather strap cutter

For cutting stiff leathers into parallel strips (belts, straps,etc.)…
knoba - Leather strap cutter

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Mostly made from Iroko & stainless steel.
knoba - Leather strap cutter

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knoba - Leather strap cutter

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knoba - Leather strap cutter

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knoba - Leather strap cutter

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knoba - Leather strap cutter

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knoba – Leather strap cutter – 2015.dxf (link below)
knoba - Leather strap cutter

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knoba – Leather strap cutter – 2015.dxf

knoba – Adjustable Dowel Jig

Wood Database – Iroko

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Knurling copier & profiler

Single wheel knurler; mild steel, high tensile steel, stainless steel & brass.
knoba - knurling copier & profiler

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Filed, drilled, reamed & bevelled. Captivated dowels & countersunk bolts.
knoba - knurling copier & profiler

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Lever stops the sacrificial nut & bolt from elongating the body…
knoba - knurling copier & profiler

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knoba - knurling copier & profiler

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Used on a tool post, near the tailstock off a live centre, profiles, formers & patterns can be made from silver steel…
knoba - knurling copier & profiler

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knoba – Knurling Copier & Profiler – 2015.dxf (link below)
knoba - knurling copier & profiler

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knoba – Knurling Copier & Profiler – 2015.dxf

West Yorkshire Steel – Silver steel.pdf

Ebay.co.uk – Stainless Steel Dowel 3x12mm

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