Keyboard Riser — Split, Dovetail-Joined, Parametric (60 / 100 / 180 mm Lift)

An open-frame stand that lifts your keyboard off the desk and leaves the space underneath completely clear — slide the board away, park a phone, route cables. The keyboard nests inside a 3 mm retaining rim on the outer edges so it can't slide off, and a honeycomb deck under it (top face flush with the rest ledge) spreads the load across the whole footprint.

Three ready-to-print configurations

Lift

Board

Overall

Halves (print 1 each)

Key (print 2)

60 mm

440 × 135 mm

450 × 145 × 63 mm

keyboard_riser_left.stl / _right.stl

keyboard_riser_key.stl

100 mm

440 × 135 mm

450 × 145 × 103 mm

keyboard_riser_100_left.stl / _100_right.stl

keyboard_riser_100_key.stl

180 mm

313 × 123 mm (75 %)

323 × 133 × 183 mm

keyboard_riser_313x123_180_left.stl / _180_right.stl

keyboard_riser_180_key.stl

The 180 mm lift came in as a request from someone on a 75 % board , so it ships in that board's size — 313 × 123 mm, which is a Keychron K2 (313 × 123 × 40 mm) and most other 75 % layouts. Deliberately not a full matrix: any other combination is one command (below).

The 180 key carries no board size in its name because it needs none — the dovetail does not depend on the keyboard , so the key at a given height is the same part on any board.

Splits to fit any bed — re-joins with a drop-in dovetail key

Every size here is wider than a 256 mm bed, so the riser splits down the middle into two halves , each a stable 6-leg table on its own. They re-join with a drop-in dovetail key : butt the two flat seam faces, then drop a bowtie key straight down into the channel at each row. The undercut locks both halves lengthwise and a small bulge snaps past the mouth with a click . No glue, no tools. The keyboard's weight sits over the keys and traps them.

Above an 80 mm lift the design changes itself

A taller unbraced post sways far more (stiffness falls with height³ — a 16 mm leg under a 90 mm drop is ~6× softer than the 60 mm original), so past 80 mm:

- legs thicken from 16 to 20 mm

- every leg gets a 45° knee brace up into the top beam (sloped face points up in the print, still no supports)

- the key is exported lying flat on its back face instead of standing

What each one costs

Sliced on a P2S at 0.2 mm, 3 walls, 15 % infill, PLA — not estimated:

Configuration

Per half

Key ×2

Whole riser

60 mm · 440 × 135

182 g · 6 h 18 m

8 g