Workshop extractor

Intake side. Made from aluminium.
knoba - Workshop extractor

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Exhaust side. Enclosure made from 304 stainless steel, plywood & galv weldmesh.
knoba - Workshop extractor

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240v Torin Sifan extractor, centrifugal fan. Fabricated wall interface.
knoba - Workshop extractor

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3 developments. Mallet formed. Pop riveted & silicon seams. Cad file below.
knoba - Workshop extractor

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Removable grill made from plywood & weldmesh.
knoba - Workshop extractor

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Hardwood former (1st) used for hammer forming intake cowling
knoba - Workshop extractor

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Hardwood former (2nd) used for hammer forming intake cowling
knoba - Workshop extractor

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Hardwood former (3rd) used for hammer forming intake cowling
knoba - Workshop extractor

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First phase complete. To do: trim edges & fold over returns…
knoba - Workshop extractor

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Softwood former (4th) used for hammer forming edges of intake cowling
knoba - Workshop extractor

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Needed to make a tucking fork for this operation
knoba - Workshop extractor

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Front side.
knoba - Workshop extractor

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Back side.
knoba - Workshop extractor

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Power. Extractor is quiet & very powerful.
knoba - Workshop extractor

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Materials:
(FAN)
1 x Extractor fan
1 x Wall interface plate (1.5mm galvanised sheet)
1/8" pop rivets
Rawlplugs
6 x 12x2" stainless steel self tapers
6 x m8 stainless steel washers

(ENCLOSURE)
1 x 4'x4'x1.0mm 304 stainless steel sheet
1/8" pop rivets
Silicone sealant
1/2" closed cell foam sound insulation
High temp spray glue
10mm mild steel bar
2 x m6 stainless steel button cap bolts
2 x m6 stainless steel washers
Plywood
Weldmesh

(INTAKE)
2.0mm 6 series aluminium sheet
Grab adhesive

(ELECTRICAL)
240v metal clad switched outlet with light (5Amp fuse)
Metal clad surface mount backbox
22mm (7/8") through hole rubber grommets
1.0mm twin & earth cable
Rawl plugs
Screws
Earth sleeving
Trunking
Cable ties

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Torin-sifan – Ddn200-180a Extractor

Sassda – Stainless Steel

Rivetwise – Pop (blind) rivets

MK Electric – Commercial / domestic

Thor – Hammers & mallets

knoba – workshop extractor – 2017.dxf

knoba – Metalwork mallets

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http://www.homemadetools.net

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Box Spanner

46mm (across flats) low torque, box spanner, for restricted access on long threads.
knoba - box spanner - 01

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Welded bead around perimeter to add strength.
knoba - box spanner - 02

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Body is scaffold pole, 60% penetration on hex seam to avoid internal excess metal…
knoba - box spanner - 03

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Desktop bookends

1.5mm 304 brushed Stainless steel.
knoba - desktop bookends

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knoba - desktop bookends

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knoba - desktop bookends

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knoba - desktop bookends

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knoba - desktop bookends

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Current reading list…
knoba - desktop bookends

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knoba – Desktop Bookends – xcf.zip (link below)
knoba - desktop bookends

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knoba – Desktop Bookends – xcf.zip (link below)
knoba - desktop bookends

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knoba – Desktop Bookends – xcf.zip

knoba – Folding bar

Bahco – Smooth cut files

Snap-on – File handles

Smith and Arrow – Disc abrasives

Makita – 5″ Angle grinders

HSE – Pickling paste

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Adjustable dowel & drilling jig

Used for drilling blind holes, in matched faces, for dowelling metal or wood assemblies.
knoba - Adjustable Dowel Jig

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125mm x 127mm x 15mm 5083 Aluminium Plate
knoba - Adjustable Dowel Jig

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knoba - Adjustable Dowel Jig

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Glued on cad template (link below)
knoba - Adjustable Dowel Jig

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Optical centre punch (link below)
knoba - Adjustable Dowel Jig

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Centre drilled used as fluffer (minimizes deflection) prior to pilot drilling
knoba - Adjustable Dowel Jig

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Pilot drill all holes 3mm
knoba - Adjustable Dowel Jig

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6mm drill
knoba - Adjustable Dowel Jig

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Cut out profile
knoba - Adjustable Dowel Jig

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Filed. A good selection of files helps; the dreadnought type is especially good on aluminium.
knoba - Adjustable Dowel Jig

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Cleaned up a little more
knoba - Adjustable Dowel Jig

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…and a little more
knoba - Adjustable Dowel Jig

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Homemade edge chamferer/deburrer from an old three square file
knoba - Adjustable Dowel Jig

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Drilling ready for threading m12 inserts
knoba - Adjustable Dowel Jig

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Threading
knoba - Adjustable Dowel Jig

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Countersinking
knoba - Adjustable Dowel Jig

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Inserts: centre drilling
knoba - Adjustable Dowel Jig

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Countersinking a relief to stop the slot in the screw snaping the twist drill used in the next operation
knoba - Adjustable Dowel Jig

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Drilling to finish size
knoba - Adjustable Dowel Jig

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Stamping sizes on the heads (there are 5 different sized inserts in my set)…
knoba - Adjustable Dowel Jig

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Inserts fit nice…
knoba - Adjustable Dowel Jig

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Insert needs to be below the surface on both sides
knoba - Adjustable Dowel Jig

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Main body finished & inserts finished.
knoba - Adjustable Dowel Jig

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Marking out the fences for the tool
knoba - Adjustable Dowel Jig

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Cutting the parts
knoba - Adjustable Dowel Jig

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Drilled, tapped,assembled to slider blocks and lapped flat
knoba - Adjustable Dowel Jig

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Wallop….
knoba - Adjustable Dowel Jig

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Underside
knoba - Adjustable Dowel Jig

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

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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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Garage / workshop doors with Stainless steel hardware

Garage / workshop doors with 304 Stainless steel hardware
Garage / workshop doors with Stainless steel hardware

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Garage / workshop doors with Stainless steel hardware

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Garage / workshop doors with Stainless steel hardware

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Garage / workshop doors with Stainless steel hardware

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Garage / workshop doors with Stainless steel hardware

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Garage / workshop doors with Stainless steel hardware

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Garage / workshop doors with Stainless steel hardware

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Garage / workshop doors with Stainless steel hardware

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Garage / workshop doors with Stainless steel hardware

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Garage / workshop doors with Stainless steel hardware

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knoba – Sliding Dead Bolt – 2009.dxf

Cibo – Finit-Easy

Cibo – Finimaster Pro

Parker steel – Stainless Steel Metric Flats

Wenban-smith – Hardwoods

Wenban-smith – Softwoods

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