Workshop smoke alarm

Switched smoke alarm for workshop. LED off indicates smoke alarm is active.

knoba - workshop smoke alarm

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LED flashing on indicates smoke alarm is deactivated.

knoba - workshop smoke alarm

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It can get a bit smoky in my workshop!
knoba - lab tripod

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Wiring.

knoba - workshop smoke alarm

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knoba - workshop smoke alarm

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Schematic file below.

knoba - workshop smoke alarm

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Materials:
1 x Switch: 1A, spdt (single pole, double throw)
1 x Flashing blue LED: 10mm, 15mA, 3.2v
1 x 10mm LED holder/bezel
1 x Resistor: 470ohms, 1/4W
Wire: 7/0.2mm 
Small heatshrink tubing

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knoba – Workshop Smoke Alarm Schematic – 2018.fzz

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http://www.homemadetools.net

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Fid

Made from well seasoned beech wood, danish oil finish.

knoba - fid

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Used for leaded windows & stained glass work

knoba - fid

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Wood-database.com – European Beech

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http://www.homemadetools.net

Cavity oil gun container

Made from an old plastic grease container and an original Shutz underseal can. I also had to shorten the gun pick-up pipe.
knoba - cavity oil gun container

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Prevents rust in: chassis cavities, welded tube cavities, hard to reach internal cavities (internal wheel arch seams, etc.).
knoba - cavity oil gun container

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Threaded connector is epoxied into the lid.
knoba - cavity oil gun container

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I use from a 50:50 mix to 75:25 (oil:white spirit) mix. Soaks into seams, small gap filling, never really dries. Long lasting. Great value. Easy clean-up.
knoba - cavity oil gun container

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http://www.homemadetools.net

Tool trolley

Thrown out. Rubbermaid FG331600OWHT Food Prep Cart & some perforated aluminium baking trays.
knoba - woodwork awl

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Converted to a tool trolley (crash cart). Better than any other OEM tooling cart I’ve ever seen. It won’t rust.
knoba - woodwork awl

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Added some heavy duty handles (made from recycled aluminium scaffold poles). The extruded aluminium channel sections were recycled from a luton van.
knoba - woodwork awl

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Fasteners are stainless steel self tapers / bolts & aluminium pop rivets
knoba - woodwork awl

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I put a floor in it for large items.
knoba - woodwork awl

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Fabricated some drawers for it. They can slide right out but are otherwise retained by the runner design.
knoba - woodwork awl

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Different runner heights make it extremely adaptable.
knoba - woodwork awl

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Its best asset is it can live outside. Other benefits; It won’t hold liquids (rain, oils, etc.). I can leave it empty, load it up with tools and work on my vehicles with a place to organise stuff I take off (airfilters, cam covers, trims, fasteners, etc.)
knoba - woodwork awl

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knoba - woodwork awl

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Specs:
The cart holds up to 175 pounds.

Components are made of impact-resistant structural web plastic and are designed with soft, non-marking rounded corners

All casters are 5-inch non-marking, swivel-plate designed. Two locking wheels and two non-locking wheels make it easy to manoeuvre

Product Dimensions: 36"h x 36"l x 23"w

Shipping Weight: 52.4 pounds

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Rubbermaid – FG331600OWHT Food Prep Cart

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http://www.homemadetools.net

Coil winder stick

Made from mahogany, for loading with magnet wire, 500mm long
knoba - coil winder stick

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A 2a variac core in for rewinding
knoba - coil winder stick

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Materials:
1 x 524x25x6 mm (20 5/8"x1"x1/4") hardwood
note: use (feet, 1/2 yard) if imperial measurements preferred!

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Chainsaw horse

Made from recycled wooden pallets, folds flat.
knoba - chainsaw horse

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What’s in the CAD file…
knoba - chainsaw horse

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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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Bobbin sander mods

Table inserts to replace the plastic ones (hole between sandpaper & table)
knoba - bobbin sander mods

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Machined table inserts (made with holesaws & angle grinder), from plate
knoba - bobbin sander mods

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Pickling overnight in sulphuric acid to remove mill-scale from hot-rolled steel
knoba - bobbin sander mods

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The drop on this aperture is 3.5mm, my plate (same as the plastic inserts) is 3mm…
knoba - bobbin sander mods

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After pickling they are desmutted with detergent & a pan scourer
knoba - bobbin sander mods

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What’s in the CAD file
knoba - bobbin sander mods

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Printed 1:1, they make great stick on templates for more machining
knoba - bobbin sander mods

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Making a shim to fit into the aperture
knoba - bobbin sander mods

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Welding magnets placed on top
knoba - bobbin sander mods

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Thin bead of silicon sealer
knoba - bobbin sander mods

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Drop in shim
knoba - bobbin sander mods

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Drop in large table insert
knoba - bobbin sander mods

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Place magnets over hole & leave for 48 hours
knoba - bobbin sander mods

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Templates stuck, centre punched, pilot drilled & cleaned
knoba - bobbin sander mods

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Increased hole size to 6mm (1/4″) and countersunk both sides
knoba - bobbin sander mods

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Perfect. No more misaligned levels when sanding.
knoba - bobbin sander mods

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Was going to install small magnets but the inserts are fine
knoba - bobbin sander mods

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Added a basket for the bits & pieces.
knoba - bobbin sander mods

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Materials:
6 x 100x100x3 mm (4"x4"x1/8") plate/sheet mild steel
1 x 100x100x0.25 mm (4"x4"x0.010") shim mild steel
Silicon sealer

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Triton tools – Bobbin sander Tsps-450

knoba – bobbin sander mods – 2018.dxf

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