Ergonomic Quarter Sheet Sanding Block
Created 2 months ago
Description
An ergonomic hand tool designed to securely hold standard quarter-sheet abrasive paper for manual surface finishing. The integrated grip assembly is sculpted to reduce fatigue during extended work periods.
What it's for
- Securely clamps a standard quarter sheet of sandpaper (140 x 115mm) using a wedge-and-channel system on the underside.
- Incorporates a curved palm grip to evenly distribute pressure across the hand.
- Features scalloped finger ridges along the sides to prevent hand cramps during prolonged, 20-minute-plus sanding sessions.
Dimensions
- Base footprint: 135 x 110mm.
- Paper clearance: Leaves exactly enough margin for a 140 x 115mm sheet to wrap around the edges and tuck into the lower channels.
- Overall height: Sized to fill the palm naturally without forcing an aggressive claw grip.
Remix ideas
- Alter the depth and spacing of the finger ridges to perfectly match different hand sizes or glove thicknesses.
- Modify the locking wedges to accommodate significantly thicker or thinner backing materials, such as heavy fabric-backed abrasives or delicate finishing films.
- Add an extended pommel or secondary thumb rest for heavy material removal tasks.
Images
More like this
Explore more in Workshop & Tools →
135x110mm Quarter-Sheet Sanding Block
A handheld sanding block dimensioned specifically for quarter-sheet sandpaper (140x115mm). The 135x110mm base allows the paper to wrap over the front and back edges, where it is secured into lateral slots using two printed wedge clamps. The upper body features a sculpted dome with deep finger and thumb reliefs to reduce hand fatigue during extended use. Base dimensions: 135x110mm Paper compatibility: Standard quarter-sheet (140x115mm) Clamping mechanism: Dual friction-fit wedges Ergonomics: Sculpted palm dome with directional finger grooves
Brutalist Framing Outer Clamp
A monolithic, brutalist-inspired L-block designed to enforce exact ninety-degree angles on unruly lumber. Engineered specifically to cure the dreaded parallelogram effect in picture framing, this outer squaring jig cradles two boards firmly against its orthogonal walls while the glue sets. Design Notes: Oversized Clamp Cutouts: Generous 44mm slots on each arm easily accommodate standard bar clamps. Glue Relief Vertex: A central circular cutout ensures escaping squeeze-out never fuses the project to the jig. Rigging Anchor: A central tie-down hole offers a secondary strap point for complicated assemblies.
Brutalist Saddle Bench Anchor
Rising from the workbench like a brutalist saddle, this monolithic cloven block transforms a standard 20mm dog hole into a firm cradle for unpredictable geometries. The heavy, geometric V-cut cleft is engineered to catch and stabilize rolling stock—dowels, metal pipes, or turning components—locking them dead-center against clamping pressure. By sinking a steep peg below the benchline, the fixture acts as an immovable anvil for holding cylindrical parts during routing, carving, or sanding tasks. Fixture Geometry The Cleft: A 90-degree notch spans the entire 50mm crown, dropping deep into the block to maximize surface contact on cylinders. The Root: The 30mm anchor peg is tuned to a 19.8mm diameter and features a tapered tip, ensuring a smooth plunge into 20mm bench holes while allowing just enough clearance to prevent binding. Bed Orientation: Invert the block so the flat top face sits flush against the build plate, allowing the entire model to print completely support-free.
Banded-Spine Dust Adapter
A high-traction, banded transition piece engineered to bridge the gap between standard shop vacuums and precision power tools. Its ridged silhouette evokes a segmented mechanical spine, providing a rugged exterior grip while handling rigorous suction demands. The stepped-bore architecture utilizes a 31.5mm outer diameter to nest seamlessly inside a primary 32mm vacuum line, while the 25.5mm internal channel slides definitively over standard power tool exhaust ports. Engineered Flow Traits Clamp-Lock Ribs: Circumferential exterior spines deliver an aggressive mechanical hold for metal hose clamps, practically eliminating slippage under vibration. Arrestor Flange: An integrated mid-line collar acts as a physical backstop, ensuring both hose and tool seat to the strict designated depth. Continuous Draft: The straight internal channel bridges the differing equipment sizes without choking off the volumetric air flow.
Pegboard Utility Knife Holder
A drop-in holder built for standard utility and carpet knives, mounting flush to small-pitch pegboards. A generous front thumb cutout makes retrieval quick, while the three-peg top row distributes the weight. Form & Fit Internal Clearance: Sized at 40x20mm internally to comfortably swallow standard sliding break-off blades. Board Specs: Engineered specifically for 12mm center-to-center grids with 4mm holes. Pegs are 3.6mm to provide an easy slip-fit. Drop Spacing: The lower stabilizing bumpers sit exactly 36mm (three 12mm increments) below the main hooks to align with the board's grid. Orientation: Best printed upright. The 45-degree angle on the hooks easily clears standard overhang rules without supports.
Round to Rectangular Duct Adapter
A heavy-duty transition duct adapter for shifting airflow smoothly from a round inlet to a rectangular port. Designed with a continuous linear loft and constant 3mm wall thickness to minimize turbulence. Round inlet: 250 mm inner diameter Rectangular outlet: 300 x 220 mm inner dimensions Total height: 200 mm (including 30 mm attachment collars on each end) Wall thickness: 3 mm