Plywood picture frame

1″ thick x 19″ o/d, “Far Eastern Plywood”, waxed.
knoba - plywood picture frame

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Picture & 4mm glass is about 300mm square.
knoba - plywood picture frame

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knoba - plywood picture frame

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Wenban Smith – Far Eastern Plywood

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Font path listing bash script for xorg.conf

FreeBSD 11 here. knoba – XFontPaths.sh – 2016 (link below)
knoba - font path listing bash script for xorg.conf

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Output file.
knoba - font path listing bash script for xorg.conf

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File attributes (-rwxr-x—) “sh XFontPaths.sh” to execute.
knoba - font path listing bash script for xorg.conf

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#!/bin/sh

ls -d /usr/local/share/fonts/*/ > ~/fontpath.txt;
sed -e 's/^/zFontPath "/' ~/fontpath.txt > ~/afontpath.txt;
tr 'z' '\t' < ~/afontpath.txt > ~/bfontpath.txt;
sed -e "s|$|\"|" ~/bfontpath.txt > ~/xfontpath.txt


rm ~/fontpath.txt;
rm ~/afontpath.txt;
rm ~/bfontpath.txt;

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knoba – XFontPaths.sh – 2016

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Breadboard Patch-leads & Peripherals

2.54mm 1/10″ male to various connectors
knoba - Breadboard Patch-leads & Peripherals

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knoba - Breadboard Patch-leads & Peripherals

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2.54mm 1/10″ male to various peripherals
knoba - Breadboard Patch-leads & Peripherals

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knoba - Breadboard Patch-leads & Peripherals

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knoba - Breadboard Patch-leads & Peripherals

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Dupont clones
knoba - Breadboard Patch-leads & Peripherals

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knoba - Breadboard Patch-leads & Peripherals

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Amphenol – Interconnects

Molex – Interconnects

JST – Interconnects

Freecycle – Interconnect recycling

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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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Component tester

Aka: Octopus, Curve Tracer, Analog Signature Analyser…
knoba - Component tester

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Made from recycled 240Vac “wall wart”.
knoba - Component tester

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Breadboarding the I/V circuit.
knoba - Component tester

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Breadboarding the internal 1A fuse and led indicator circuit
knoba - Component tester

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240V:10v transformer source and internals.
knoba - Component tester

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Measuring out internals and laying out facia
knoba - Component tester

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Making fuse & indicator pcb
knoba - Component tester

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Backside
knoba - Component tester

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All pcbs made and fitted
knoba - Component tester

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Made some test leads, facia done with inkjet printer and laminated
knoba - Component tester

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Compact, no mains leads hanging around…
knoba - Component tester

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BNC’s are 50ohm, 4mm bananas, female pin header.
knoba - Component tester

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Working well… seen testing an LED
knoba - Component tester

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knoba – component tester front panel – 2016.dxf
knoba - Component tester

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knoba – component tester schematic – 2016.fzz
knoba - Component tester

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knoba – component tester front panel – 2016.dxf

knoba – component tester schematic – 2016.fzz

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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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