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Wire Shelf Post Grow-Light Arm Clamp
A pinch clamp that bolts onto a 1 in (25.4 mm) wire-shelving post and holds a 1/2 in EMT conduit arm (17.9 mm OD) sticking straight out, so you can hang LED grow bars or shop lights from it with S-hooks or chain instead of zip ties. Two M5 bolts close a 4 mm pinch slot, so it grips posts from about 24.9 to 26.2 mm. A third M5 bolt goes through the 38 mm deep socket and a hole you drill in the EMT, which stops the arm from twisting or sliding out. It measures 84 x 36 x 36 mm.
Push Broom Brace Socket For 3/4 in EMT
A screw-on 45° handle socket that turns a shop push broom with a snapped or stripped handle into one with a 3/4 in EMT conduit handle (23.4 mm OD; 23.8 mm bore, 57 mm deep). A ribbed 112 x 44 x 6 mm base fixes to the broom block with four #8 wood screws, and an M5 through-bolt across the socket locks the conduit in place.
Desk-Edge Clamp Paper Roll Bracket
A C-clamp bracket that grips the edge of a desk up to about 32 mm thick, tightened by an M5 bolt into a captured nut. Its open-top cradle holds a 1/2 in EMT conduit axle (17.9 mm OD, 18.6 mm slot), so you can mount a roll of trace, kraft or butcher paper up to about 100 mm in diameter above the desktop with no screws in the desk. Print two and cut the EMT to roll width + 60 mm.
Print-In-Place Hinged Pinch Collar For 3/4 in EMT
A clamshell stop collar for 3/4 in EMT conduit (23.4 mm OD) that prints in one piece with its 5 mm hinge pin already in place. It swings open so you can snap it on partway along a rail, then one M5 bolt and a captive M5 nut pull the 2 mm pinch gap closed. You don't have to slide anything over the pipe end. It is 16 mm tall with a 37 mm OD body, has a 23.6 mm bore and is 56 mm long overall. Use it as a height stop, a rail end-stop or an anchor point on EMT.
Clothesline Prop Head For 1/2 in EMT
A 170 mm crossbar head that slides onto a 1/2 in EMT conduit pole (17.9 mm OD, 18.3 mm bore, 36 mm deep), so you can make a clothesline prop. It has four round-bottom line notches at 44 mm spacing to keep up to four lines apart, and an M4 self-tapping lock screw that stops the head from spinning on the pole.
Plant Support Ring Clamp For 1/2 in EMT Stake
A pinch-clamp collar for 1/2 in EMT conduit (17.9 mm OD, 18.4 mm bore) that holds an open 70 mm plant ring. You slip the ring around a tomato, pepper or dahlia stem through the 20 mm gate, then lock it at any height with an M5 bolt and a captured nut. The part is 130 mm long and prints flat, so the side load from the plant stays along the layers instead of across them.
3/4 in EMT Wagon Handle Pivot Clevis
This replaces the cracked folding pivot on a garden or utility wagon handle. One end is a 42 mm deep socket for a new handle made from 3/4 in EMT conduit (23.4 mm OD, bored to 23.7 mm), held by two M5 through-bolts. The other end is a clevis with an 18 mm wide jaw that takes the wagon's tongue tab and pivots on an 8 mm steel pin or M8 bolt (8.3 mm bore). For tabs thinner than 18 mm, pack the gap with M8 washers. The part prints on its side, so the handle pull runs along the layers and not across them. It measures 90 x 36 x 34 mm.
1/2 in EMT Curtain Rod Wall Bracket
A gusseted wall bracket for DIY industrial-style curtain rods made from 1/2 in EMT conduit (17.9 mm OD). The rod slips through an 18.4 mm bore and an M4 self-tapping set screw locks it in place. The bracket stands the rod 88 mm off the wall so it clears blinds and trim, and it fixes to the wall with two #8 wood screws through 5 mm holes. It prints on its side, so the rod's weight runs along the layers instead of across them. The bracket is 104 x 82 x 24 mm.
EMT Tube Fishmouth Coping Marking Sleeves
This twin marking sleeve slides onto 3/4 in EMT (23.4 mm OD) or 1/2 in EMT (17.9 mm OD). Each saddle-cut top edge is the exact fishmouth for a 90° tee into a tube of the same size, so you trace it with a fine marker and grind or file to the line. M4 thumb screws in self-tap bosses hold each sleeve in place while you trace. The part is 70 mm long and 26 mm tall, which solves the problem of hand-laying-out tube copes for EMT carts, racks and canopy frames.
Under-Desk 1/2 in EMT Foot Bar Bracket
A trussed side bracket that screws to the inside of a desk's legs or side panels with four #8 wood screws. Each bracket carries a length of 1/2 in EMT conduit (17.9 mm OD; the ring bore is 18.4 mm) as a foot bar under the desk. The 60 x 96 x 48 mm part is printed on its side, so foot load runs along the layers. An M4 self-tapping screw from below (3.4 mm pilot) pinches the tube so it doesn't spin.
1/2 in EMT Phone Scan Stand Base
This is a U-shaped desk base that turns an offcut of 1/2 in EMT conduit (17.9 mm OD) and a clamp-on phone holder into an overhead document-scanning stand. The 170 x 170 mm footprint has a paper-stop lip and screw holes for #8 screws (4.5 mm). The 45 mm socket has an 18.4 mm bore with gusset ribs on both sides, and the post is locked by an M4 thumbscrew threaded into a brass heat-set insert (5.5 mm bore).
Pinch-Bolt 1/2 in EMT Rail Parts Bin
A 90 x 60 x 50 mm open parts bin with a 45° V-roof hook that hangs over a 1/2 in EMT conduit rail (17.9 mm OD) above a bench. One M4 x 35 bolt goes through 4.5 mm holes in the bin's rear pillar and the flexing back leg and pinches the rail, so the bin can't rock forward when it's loaded and you can slide it anywhere along the rail. The rail needs at least 25 mm of wall standoff to clear the 3 mm back leg.
Dog Tie-Out Swivel Cap For 1/2 in EMT Stake
A print-in-place swivel head for a dog tie-out that slips over a 1/2 in EMT conduit stake (17.9 mm OD, 18.3 mm bore, 36 mm deep). It replaces the swivel eye that strips or snaps on corkscrew stakes, which are usually only sold as a whole kit. A 50 mm ring rides on a V-race with a 0.5 mm gap, so the 11 mm snap-hook eye turns a full 360° and the lead doesn't wind around the stake. The part is 45 mm tall, and the pull from the lead runs in the layer plane. There's an optional M4 self-tapping set-screw hole if you want to lock the cap onto the stake.
Joist J-Hook For 3/4 in EMT Rail
This hanger screws flat to the side of an exposed ceiling joist and holds a 3/4 in EMT conduit tube (23.4 mm OD, 24.2 mm seat) in a drop-in J-hook about 70 mm below the joist. Mount one on every joist to run cheap conduit rails for overhead garage storage. It prints flat, so the tube's weight pulls in the plane of the layers, and the three 5.5 mm holes take #10 washer-head screws loaded in shear. A pair of zip-tie holes lets you strap the tube in so it can't lift out.
Under-Desk 1/2 in EMT Cable Rail Hanger
A pair of these screws to the underside of a desk with #8 wood screws (4.6 mm clearance holes, 48 mm apart). Together they hold a length of 1/2 in EMT conduit (17.9 mm OD) about 60 mm below the desktop as a hanging rail for power-strip cords, chargers and loose cables. The rod pushes sideways into a 16.9 mm snap mouth on an 18.3 mm saddle. The bracket is printed on its side, so the hanging load runs along the layers instead of across them. It also has gussets and a zip-tie slot for strapping a cord to the leg.
PVC And EMT Offcut Socket Wall Rack
This wall rack has five upright sockets that keep short pipe offcuts sorted by size: 1 in (33.4 mm OD), 3/4 in (26.7 mm) and 1/2 in (21.3 mm) schedule 40 PVC, plus 3/4 in (23.4 mm) and 1/2 in (17.9 mm) EMT conduit. Each 36 mm deep socket is 1.5 mm over the pipe's OD and has a drain hole in the floor. The 156 x 52 mm back plate takes two #8 wood screws.
Shelf-Pin Mount 1/2 in EMT Rod Cup
This rod cup lets you add a hanging rail to a wardrobe or cabinet without drilling. It pins into the shelf-pin holes the cabinet already has. A 18.4 mm U-cup takes 1/2 in EMT conduit (17.9 mm OD), and two 5 mm steel pins or dowels, each 16 mm long, go through the 6 mm plate into the side panel. The lower hole is round. The upper hole is a slot that fits hole spacings of 1 in, 1-1/4 in and 32 mm. There is also a 4.5 mm hole for a #6 screw if the cabinet has no shelf-pin holes. Print two and cut the EMT to the inside width of the cabinet minus 13 mm.
Spring-Fin P-Clamp For 18-24 mm Pipe
A one-piece P-clamp with a 29 mm split ring lined with five flexible spring fins. It grips 1/2 in EMT (17.9 mm), 1/2 in PVC (21.3 mm) or 3/4 in EMT (23.4 mm) without rattling, so you don't have to buy a box of 25 fixed-size clamps to get one odd size. Two 5.5 mm screw holes, 54 mm apart, take #8/#10 wood screws or M5 bolts into a stud or frame rail. Tightening the screw through the 14 mm wide strap closes the 4 mm tab gap and squeezes the ring onto the pipe. Thread the clamp onto the run before you fix it.
1/2 in EMT Clawfoot Shower Rod Drop Tee
A set-screw tee for DIY clawfoot tub shower curtain rods made from 1/2 in EMT conduit (17.9 mm OD). The horizontal curtain rail passes straight through an 18.3 mm bore, and the vertical ceiling drop sits 30 mm deep in a top socket. Three M4 self-tapping set screws (3.4 mm pilots) lock both tubes. The body is 50 x 28 x 60 mm, and the rail bore has a teardrop top so it prints without supports.
Squeeze-Fit Two-Hole Pipe Strap
This two-hole wall strap is sized to one exact pipe. The default is 3/4 in EMT (23.4 mm OD). You can change PIPE_OD to 17.9 for 1/2 in EMT, 21.3 for 1/2 in PVC, 26.7 for 3/4 in PVC or 33.4 for 1 in PVC, so the strap always matches the pipe even when the store doesn't stock that size. The flanges stand 1 mm off the wall, so two #8 wood screws in 4.5 mm holes draw the 3.5 mm arch down and clamp the pipe tight. The part is 16 mm wide and prints flat on its side, which keeps the clamping load in the layer plane.
PVC And EMT Pipe Size Slot Gauge
A 110 x 100 x 5 mm gauge plate for sorting offcuts in the bin or checking a fitting in the aisle. It has U-slots for Schedule 40 PVC in 1/2", 3/4" and 1" (21.3, 26.7 and 33.4 mm OD) and EMT conduit in 1/2" and 3/4" (17.9 and 23.4 mm OD), each 0.5 mm over nominal. A row of 3, 4, 5, 6 and 8 mm round-stock and hinge-pin holes runs across the middle. The pipe drops into the smallest slot it fits, and raised-free dimples mark sizes with no text: round dots for PVC, square dots for EMT.
1/2 in EMT Pot Rail Wall End Bracket
Wall end bracket that holds a 1/2 in EMT conduit pot rail (17.9 mm OD, 18.4 mm socket, 20 mm deep) 55 mm off the wall, so pots and pans hang clear of the backsplash. It mounts with two #8 wood screws, has a braced gusset to carry the weight of heavy pans, and an M4 self-tapping set screw stops the rail from turning. Print a pair, one for each end of the rail.
1/2 in EMT Three-Way Canopy Corner
A three-way corner connector for 1/2 in EMT conduit (17.9 mm OD). It has 18.4 mm sockets, 35 mm deep, on the +X, +Y and +Z axes, and each socket locks with an M4 thumbscrew in a brass heat-set insert. Use it to build shade canopies, bird-netting cages, cold frames and greenhouse frames from cheap hardware-store conduit. The horizontal bores have teardrop tops so it prints flat without supports, and the whole part is 69 x 61 x 65 mm.
Snap-On Pot Rail Hook For 1/2 in EMT
A snap-on S-hook for a DIY kitchen pot rail made from 1/2 in EMT conduit (17.9 mm OD). The 18.3 mm ring clicks over the tube through a 16.5 mm mouth and slides freely along the rail. A 16 mm deep J-hook at the bottom holds pot handles, mugs and utensils. It prints flat and 8 mm thick, so the hanging load runs along the layers instead of across them. It measures about 37 x 87 x 8 mm.