Replacement Wall Hinges for Regalo 1250 / 1250 B Top of Stairs Gate (with slide-in pin clip)

Both wall hinges on my Regalo Top of Stairs gate (model 1250 B) cracked, and replacement hinges weren't easy to get. So I designed new ones that fit the gate's original screw holes and L-shaped pins.

Mine have been on the gate since November 2026. The gate swings smoothly, and the hinges feel tighter and sturdier than the originals.

What's included

• Bottom hinge: one piece, with screw holes 2.0 in (50.8 mm) apart.

• Top hinge: a body with screw holes 2.75 in (69.85 mm) apart, plus a slide-in clip. The clip slides sideways into a T-slot above the top screw and sits over the pin's arm, so the gate can't be lifted off. A small latch bump clicks into a pocket to stop it sliding out. To remove it, lift the end of the latch with a small flat screwdriver and slide the clip out.

• Pin check: a quick test piece with three bores (7.1 / 7.5 / 7.9 mm, marked with 1, 2 and 3 ticks). Print it first and test it on your gate's pin.

• OpenSCAD source: every dimension is a named parameter.

Check your gate first

These hinges were measured from one gate. Before printing, check yours:

• bottom hinge screw holes: 2.0 in centre to centre

• top hinge screw holes: 2.75 in centre to centre

• pin diameter: about 7 mm, just over a 1/4 in drill bit

• pin leg: about 1 in from the underside of the bend to the tip

The hinge bore is 7.3 mm. In my PETG, the 7.1 mm bore on the pin check was too tight and the 7.5 mm bore was loose. If your result differs, change pin_clear in the SCAD. If your hole spacing differs, change lower_spacing or upper_spacing.

Print settings (what I used)

• Material: PETG. I don't recommend PLA for this: it slowly bends under a constant load, especially somewhere warm.

• 0.20 mm layers, 6 walls, 6 top and 6 bottom layers, 100% infill

• No supports. Print the parts exactly as oriented in the STLs, on their sides. The holes are teardrop-shaped and the overhangs are 45°, so everything prints cleanly. I left the slicer's auto brim on (5 mm), since the parts stand fairly tall and narrow.

• Nozzle 250 °C, bed 70 °C, textured PEI.

• Why on their sides: the pull and lift loads then run along the layer lines rather than trying to peel layers apart.

• About 4 h and 93 g for all three parts on an Elegoo Centauri Carbon 2.

Install

1. Unscrew the broken hinges.

2. Screw the new hinges into the existing holes, using the gate's original countersunk wood screws. The bottom hinge goes at the bottom and the top hinge (the taller one) at the top, both with the sleeve opening facing up. If the old holes are stripped, repair them properly before you rely on the gate.

3. Drop the gate's L-pins into the sleeves.

4. On the top hinge, slide the clip into the T-slot from the side, over the pin's arm, until the latch clicks.

5. Swing the gate through its full range and check that nothing rubs. Then pull up and out hard on the gate before you trust it.

The clip has a 45° bevel along its front-bottom edge, so it clears the pin's arm as it slides in. On my own print I cut this bevel by hand; the files have it modelled in.

Safety

A top-of-stairs gate is safety equipment. These are hobby-made, 3D-printed parts. They are not made, tested or endorsed by Regalo, and they haven't been tested to any child-safety standard. Use them at your own risk. Check the fit carefully, load-test the gate after installing, and inspect the hinges regularly for cracks or a loose clip. If genuine replacement hinges are available for your gate, they're the safer choice.

How this was made

This design was made with AI assistance. I used an AI assistant (Anthropic's Claude) to write the parametric OpenSCAD model, check that the parts clear the pin, nut and gate tube as the gate swings, and choose print settings. I measured the gate, test-printed the pin fit, printed and installed the hinges, and adjusted the clip after a real fit. The original top-hinge clip caught on the pin's arm, so a front bevel was added.

Regalo is a trademark of its owner, and it's named here only to say which gate these fit.