WIP A v2: the wider print foundation is implemented. The working seats still have the observed centering/rocking limitation. This is a comparison candidate, not the resolved design.
← Pegboard collectionSD01–SD04 · design v2 · 25.4 mm mounting lattice
Compare with diagonal-bed B · Footprint and unchanged-seat checks
Four screwdriver racks, from slim jeweler drivers to large handles. Shared solder-station geometry: wide plates, deep chamfered entries, continuous flush backs, canonical tight pegs and separate low tip floors. One empty slot per rack is shown so the return opening stays visible.
Download the CAD and review bundle · Choose a rack · Design rationale and references
Lift about 14 mm along the slight outward lean, then pull toward you. Return reverses that path in one sweeping movement: the shaft enters through the open front; the shoulders settle into the shallow funnel. No long sleeve, full-shaft threading or wrist rotation is required. The seated and 2 mm high poses block a straight forward slide without relying on friction.
All 19 positions were checked against the other stored tools and the board. A widened approach cone and a full cylindrical grasp envelope also clear the modeled neighbors. These are bounded geometry checks; comfortable blind return and accidental-bump retention still need a hands-on trial.
Print each rack and floor separately, base down. A v2 has permanent 18 / 24 / 32 / 40 mm deep bases, respectively, replacing the 9.4 mm strips. Keeping the 55° rising underside shortens the body without changing the working seats, widths or peg fit. Actual bed contact increases 1.9–4.2 times; no removable brim is counted. The lower throat relief is steep enough to remain above 50° after the 5° tool lean. The main bodies have no downward-facing non-bed surface below the 49.5° audit threshold. The settled rear peg geometry still needs small, accessible build-plate supports; it was not reshaped to claim support-free printing.
The largest piece is 226.6 mm wide. No curve rises from the bed, no giant front curtain hides the tips, and the separate floors can move by whole grid rows for long shafts. No material reduction was used to compromise the bearing area or lead-in.
6 tools / 5 grid cells · 125.0 mm wide
Handle envelope ≤ 9 mm · blade envelope ≤ 3.4 mm · maximum shown shaft 60 mm.
Seat spacing 20.32 mm · grasp clearance in the modeled array ≥ 4.3 mm.
Rack: STEP · Upright STL · FreeCAD
Tip floor: STEP · Upright STL · FreeCAD
5 tools / 6 grid cells · 150.4 mm wide
Handle envelope ≤ 18 mm · blade envelope ≤ 4 mm · maximum shown shaft 80 mm.
Seat spacing 28.57 mm · grasp clearance in the modeled array ≥ 2.6 mm.
Rack: STEP · Upright STL · FreeCAD
Tip floor: STEP · Upright STL · FreeCAD
4 tools / 7 grid cells · 175.8 mm wide
Handle envelope ≤ 30 mm · blade envelope ≤ 6.35 mm · maximum shown shaft 152.4 mm.
Seat spacing 44.45 mm · grasp clearance in the modeled array ≥ 4.5 mm.
Rack: STEP · Upright STL · FreeCAD
Tip floor: STEP · Upright STL · FreeCAD
4 tools / 9 grid cells · 226.6 mm wide
Handle envelope ≤ 40 mm · blade envelope ≤ 9.525 mm · maximum shown shaft 203.2 mm.
Seat spacing 57.15 mm · grasp clearance in the modeled array ≥ 6.1 mm.
Rack: STEP · Upright STL · FreeCAD
Tip floor: STEP · Upright STL · FreeCAD
The four racks occupy 27 grid cells, 685.8 mm (27 inches) across, with 2 mm seams. Put the frequently used grips in your comfortable elbow-to-shoulder reach band; place the occasional long driver farther out. Mount the low floors below the actual tips, leaving clearance. Your 48 × 68 inch board does not make its upper rows a comfortable daily reach.
Whole-inch module width and tool count are independent: SD01 fits six tools in five cells. Every rack and floor has two widely separated peg columns. Empty funnels and exposed shafts identify the missing tool.