Chainsaw horse

Made from recycled wooden pallets, folds flat.

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What’s in the CAD file…

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Materials:
3 x wood fork lift pallets;
12 x 115x92x16mm
8 x 114x70x16mm
24 x 2 1/2"x10 stainless wood screws
3 x m10x80mm stainless coach bolts
3 x m10 bzp nyloc nuts
6 x m10 stainless penny washers

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knoba – chain saw horse – 2018.dxf

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Font path listing bash script for xorg.conf

FreeBSD 11 here. knoba – XFontPaths.sh – 2016 (link below)

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Output file.

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File attributes (-rwxr-x—) “sh XFontPaths.sh” to execute.

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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'  ~/bfontpath.txt;
sed -e "s|$|\"|" ~/bfontpath.txt > ~/xfontpath.txt


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

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FreeBsd – Unix-like operating system

Debian – Linux operating system

GNU – Operating system & software

knoba – XFontPaths.sh – 2016

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Test lead rack

Copper, brass, stainless, aluminium. It rotates.

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Aluminium top tray & forming buck

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Buck formed. Aluminium top tray formed

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Brass upper rack and shaping forms

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Complete assembly

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Machined & beaten copper bolt, tray, turned copper spacer

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Drive screws, machined & shaped brass rack piece

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Machined aluminium wheel, copper spiky things, brass & stainless tynes, copper nut, m6 grub screw

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Copper spiky things

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Assembled

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Upside down

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Fitted to my electronics bench

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Sumptuously disposed with test leads

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Tray carrying nik-naks & bits

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Cad file below

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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.

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Clamp is 6mm x 25mm, m8 threaded bar, turned piece on end

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Finish is sulphuric acid pickling & satin black cellulose

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Good stability, very solid.

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knoba – Jewellers Bench – 2016.dxf (CAD file link below)

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knoba – Jewellers Bench – 2016.dxf

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Casio fx-991ES Plus calculator Keymap

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Casio – Learning Mathematics with ES PLUS Series Scientific Calculator

knoba – Casio fx-991ES keymap.pdf

knoba – Casio fx-991ES keymap.txt

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Lunar ecplise 2015

Taken from Sussex (England) 28th September, 2015.

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knoba – lunar ecplise – 2015.zip

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Leather strap cutter

For cutting stiff leathers into parallel strips (belts, straps,etc.)…

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Mostly made from Iroko & stainless steel.

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

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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.

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Filed, drilled, reamed & bevelled. Captivated dowels & countersunk bolts.

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Lever stops the sacrificial nut & bolt from elongating the body…

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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…

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knoba – Knurling Copier & Profiler – 2015.dxf (link below)

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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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Lathe chuck spider

Magnetic lathe chuck spider provides reference face for repeat cuts.

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Another one for my 4 jaw chuck (material is 5083 aluminium 15mm thick & 3mm x 3mm neodymium magnets).

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The spider also helps with work-holding when turning small parts.

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knoba – Lathe chuck spider – 2015.dxf (link below)

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knoba – Lathe chuck spider – 2015.dxf

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Adjustable dowel & drilling jig

Used for drilling blind holes, in matched faces, for dowelling metal or wood assemblies.

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125mm x 127mm x 15mm 5083 Aluminium Plate

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Glued on cad template (link below)

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Optical centre punch (link below)

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Centre drilled used as fluffer (minimizes deflection) prior to pilot drilling

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Pilot drill all holes 3mm

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6mm drill

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Cut out profile

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Filed. A good selection of files helps; the dreadnought type is especially good on aluminium.

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Cleaned up a little more

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…and a little more

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Homemade edge chamferer/deburrer from an old three square file

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Drilling ready for threading m12 inserts

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Threading

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Countersinking

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Inserts: centre drilling

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Countersinking a relief to stop the slot in the screw snaping the twist drill used in the next operation

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Drilling to finish size

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Stamping sizes on the heads (there are 5 different sized inserts in my set)…

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Inserts fit nice…

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Insert needs to be below the surface on both sides

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Main body finished & inserts finished.

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Marking out the fences for the tool

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Cutting the parts

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Drilled, tapped,assembled to slider blocks and lapped flat

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Wallop….

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Underside

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knoba – Adjustable Dowel Jig – 2015.dxf (link below)

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knoba – Adjustable Dowel Jig – 2015.dxf

knoba – Optical centre punch

knoba – Dewalt chop saw mods

Wiki – 5083 aluminium alloy

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Optical centre punch

View of the CAD file & assembled materials (brass, medium carbon steel & acrylic)…

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All machined to stated dimensions.

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Loupes’ internal bore has been reamed.

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Polished rings at ends and grained through body for finish & finger grip.

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Recess for rubber ‘o-ring’ to stop the loupe slipping out of position.

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Centre punch is being soaked (the punch is at the front & the bits at the back are for another project).

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Punch is going to be quenched in old engine oil.

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View through loupes’ optic.

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CAD drawing below is for another project and the reason I wanted to make this tool.

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O-ring fitted and held in place with epoxy glue.

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Tool needs a case to protect the optic and keep the tool together.

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Looking forward to using it for the next project…

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Cross-hairs were scored on the lathe and highlighted with a blue sharpie pen.

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knoba – Optical Centre Punch – 2015.dxf (link below)

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knoba – Optical Centre Punch – 2015.dxf (updated)

With thanks to “PJ’s” at PJ’s – Home

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Leather Edge Creaser

In stainless steel & brass, with beeswax finished silver birch handle…

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Tool is used for making a style line or stitching line…

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knoba – Leather Edge Creaser – 2015.dxf (link below)

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knoba – Leather Edge Creaser – 2015.dxf

The wood database – Silver Birch

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All CAD files are in dxf format, are free to download, use & are virus free. All links are genuine. I do not keep logs on anyone or anything. Make stuff…

playstation game rack

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Half blind sliding dovetails make the rack ‘flat-packable’ without using any fasteners or tools.

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knoba – Game holder – 2007.dxf (link below)

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knoba – Game holder – 2007.dxf

Wood-database.com – Iroko

Colron – Refined Finishing Wax

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Wallpaper cheat sheet – Arduino

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Arduino – Language reference

Gimp – GNU Image Manipulation Program for xcf files

knoba – Arduino Cheat Sheet Wall Paper 1680×1050 – 2013.xcf

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Wallpaper cheat sheet – Microchip PIC

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Microchip – PIC Assembly Language Reference

Gimp – GNU Image Manipulation Program for xcf files

knoba – Pic-micro Cheat Sheet Wall Paper 1680×1050 – 2013.xcf

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Regulated BENCH POWER SUPPLY 240Vac ~ 24Vdc

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Made from an ATX computer power supply.

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Outputs; 24Vdc, 12Vdc, 5Vdc, 3.3Vdc & USB 5Vdc (no data lines).

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Similar item used in power supply…

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Upgraded: Laminated colour fascia

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knoba – Regulated 240vac 24vdc bench power supply fascia – 2016.dxf (link below)

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Rapid Electronics – Electronic Components

3M – SC-DR Roloc Surface Conditioning Disc

Ebay – 2 Port USB 2.0 PC Header

helpwithpcs.com – ATX Power Supply Pinouts

knoba – Bench power supply 240Vac ~ 35Vdc @ 1A

knoba – Regulated 240vac 24vdc bench power supply fascia – 2016.dxf

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Capacitor Code Cheatsheet

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knoba – Capacitor Code Cheatsheet – 2014.pdf

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Linux & Microchips Low pin count demo board

Microchip Low Pin Count Demo Board Tutorial series.

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Toolchain…

Programmer:               Pickit 2
Processor:                    PIC16F690-I/P
Build environment:   Gnu/Linux Debian Jessie 3.2.0-4-686
IDE:                                MplabX 1.95
Make:                            GNU Make 3.81
Assembler:                   MpasmWin 5.53
Linker:                           Mplink 4.51

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Assembly files (links below)

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knoba – LPCB – 01-v0.1.asm

knoba – LPCB – 01-v0.2.asm

knoba – LPCB – 01-v0.3.asm

knoba – LPCB – 02-v0.1.asm

knoba – LPCB – 02-v0.2.asm

knoba – LPCB – 02-v0.3.asm

knoba – LPCB – 03-v0.1.asm

knoba – LPCB – 03-v0.2.asm

knoba – LPCB – 04-v0.1.asm

Microchip – Home

Microchip – PIC16F690 Datasheet Pdf

Microchip – PicKit 2 Documents

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Linux, my most used terminal commands


knoba@debian:~$ mogrify -resize 600 *.JPG
knoba@debian:~$ ls -R > Lectures.txt
knoba@debian:~$ kill 20721
knoba@debian:~$ uname -a
knoba@debian:~$ for f in *.mp4; do ffmpeg -i "$f" -ab 192k "${f/%mp4/mp3}"; done
knoba@debian:~$ file bioelectromagneticweapons2.pdf
knoba@debian:~$ dmesg
knoba@debian:~$ wine Run.exe
knoba@debian:~$ xkill
knoba@debian:~$ unrar -e 0872598799RFDesignEx.rar
knoba@debian:~$ xscreensaver-demo
knoba@debian:~$ man wget
knoba@debian:~$ for f in *.rar;do unrar e $f;done
knoba@debian:~$ find -name *.bmp
knoba@debian:~$ apropos circuit
knoba@debian:~$ mount /media/usb1
knoba@debian:~$ top
knoba@debian:~$ cat ~/.get_iplayer/options
knoba@debian:~$ wget -r -A .pdf -l 3 http://bitsavers.trailing-edge.com/pdf/ibm root@debian:~$ apt-get update && apt-get upgrade-dist


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Debian – The universal operating system

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Ball turning fixture for lathe

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Balls for my pillar drill…

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What’s in the CAD file

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knoba – Ball Cutter – 2012.dxf

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