Edge Lift Designer

A lift edge sized to your hand, ready to print. Your measurements stay on this device.

Start here
  1. Measure your hand (Hand): P1 per finger (knuckle to middle joint) from a photo or a ruler; the i buttons in the table show how. One hand gives one stepped edge, both hands a stepped edge each.
  2. Set the edge (Edge): depth and front radius like a hangboard edge; the pocket height is room for the curled fingers.
  3. Check the strength (below the 3D view): safety factor at least 2 at your heaviest pull. Warnings appear under the plate.
  4. Export STL or 3MF and print it flat, pocket up, no supports. Hover over a control to see what it changes.

Plate

as you see it while lifting, from the back (open side away from you): fingers into the pocket, pads up on the top edge

Print preview

as printed: flat on the bed · drag to turn, wheel to zoom

Edge section

cut through the edge bar and the pocket floor at the middle finger

Export

The STL is the plain part: slice it however you like. The 3MF files also carry layer height, walls, infill and top/bottom layers, plus the denser-infill zones as modifiers if you switch them on. PrusaSlicer and OrcaSlicer keep your current printer, nozzle and filament. Bambu Studio only applies the settings when the file names its printer presets, so pick your Bambu printer; the nozzle follows the app's nozzle setting.

Measure from a photo

  1. Half fist (best for P1 and knuckle offsets): bend the knuckles and the middle joints to 90°, rest the middle finger segments on the table and photograph the back of the hand straight from above. Tips: mark the top of each knuckle and each middle joint with a pen dot first; hold the phone flat and straight above the knuckles (a tilted camera shortens the fingers unevenly); put the ruler at knuckle height, pointing along the fingers (on a book or box), otherwise the scale is off by about 10–15%.
  2. Palm, flat (for the finger widths): hand flat, palm up, ruler on the table next to it.
  3. Click two marks on the ruler and enter their distance, then the points the step line below asks for, index to little.

Detect hand places the knuckles, middle joints and end-joint widths automatically (MediaPipe, runs on this device); check and drag them, and click the ruler marks yourself. The edge steps use the differences between fingers, so a constant offset in where you click does not matter. Values you don't measure stay as they are in the table.

Load a photo to start. It is only read by this page and never uploaded.