Hammond 1590BB2 enclosure dimensions

Wall thickness, casting taper and a free drill template

External, at the rim
119.5 × 94 × 33.8mm

4.70 × 3.70 × 1.33 in

Drilled face
118.1 × 92.6mm

the face you lay out

Usable flat area
105.6 × 80.1mm

inside the walls and bosses

Wall thickness
2.3mm

0.7 mm draft per side

Lay out a 1590BB2 →

Free in your browser, and it prints a true-size drill template.

The Hammond 1590BB2 is the 1590BB's deeper sibling: essentially the same wide, landscape face with nearly 4 mm more depth. That margin is what lets board-mounted pots, stacked boards and top-mounted jacks coexist in a wide build.

1590BB2 drawing

AABB SECTION A-ASECTION B-B 118.192.6R4.9R4 BOSS33.8119.5 AT RIM(R1.5) EDGE2.3 WALL0.7 DRAFT(33.8) NOTES1.MATERIAL: DIE-CAST ALUMINIUM ALLOY2.INTERNAL CAVITY 113.6 x 88.1 AT THEDRILLED FACE3.USABLE FLAT AREA 105.6 x 80.1 INSIDETHE CORNER BOSSES4.LID FIXING: 4 OFF 6-32 UNC5.HIDDEN LINES ARE THE INSIDE FACE OFTHE WALL AND THE CORNER BOSS KEEPOUT6.CASTING DRAFT DRAWN AT TRUE SCALE7.TOP EDGE ROLLOVER R1.5 NOMINAL, NOTA MEASURED FIGURE HAMMOND 1590BB2DIMENSIONS IN MMSCALE: TO FITSOURCE: HAMMOND CADSTOMPBOXLAYOUT.COMTHIRD ANGLE
The drilled face, with the inside of the wall and the corner screw bosses as dashed hidden lines, and two sections cut on the centrelines showing the wall, the casting draft and the rolled top edge. Drawn from the CAD, so it agrees with the figures below it. Drag the drawing sideways to see the rest of the sheet.

Full specification

External footprint (at the open rim) 119.5 × 94 mm (4.70 × 3.70 in)
Drilled (top) face 118.1 × 92.6 mm (4.65 × 3.65 in)
Depth 33.8 mm (1.33 in)
Wall thickness 2.3 mm
Wall taper (per side, face to rim) 0.7 mm
Corner radius 4.9 mm
Screw boss reach (each corner) 4 mm
Internal cavity (at the face) 113.6 × 88.1 mm (4.47 × 3.47 in)
Usable flat area (inside the bosses) 105.6 × 80.1 mm (4.16 × 3.15 in)
Material Die-cast aluminium alloy
Lid screws 4 × 6-32 UNC

Figures are derived from Hammond's own STEP models and datasheets, the same data the editor and the comparison tool use. Official drawing, 3D CAD and specification sheet: Hammond's 1590BB2 part page.

How thick are the walls?

The 1590BB2's walls are 2.3 mm thick. Like every diecast enclosure it also carries a casting draft: each wall leans out by 0.7 mm from the drilled face to the open rim, so the enclosure measures 119.5 × 94 mm at the rim and 118.1 × 92.6 mm across the face you drill. Worth knowing when a part seats against the inside of a wall, and why a caliper reading depends on where you take it.

What fits inside?

The internal cavity measures 113.6 × 88.1 mm at the face, and the screw bosses in each corner reduce the usable flat area for a circuit board to about 105.6 × 80.1 mm. To check a specific board, put its dimensions into the enclosure comparison tool's fit checker, or place the whole layout in the editor, which knows each component's real footprint and warns when something clashes with a wall or a boss.

1590BB2 drill template

The Stompbox Layout editor has the 1590BB2 as a built-in preset. Place your holes on it, and it prints a true-size PDF drill template with the enclosure outline, every hole position and a ruler to verify your printer's scale. Free, no download, runs in the browser.

Printed at 100% scale it works as a drilling template: tape it to the enclosure, centre punch each mark, then drill. Our guide to hand drilling a pedal enclosure walks the whole job, bit sizes included.

A 3D printed drill jig sitting over a pedal enclosure.

3D printable drill jig

Nothing to tape down, nothing to slip, and it wraps the sides so the jacks line up. The editor makes one from your own layout, for the exact enclosure you picked, $29.

See the drill jig →

How the 1590BB2 compares

Enclosure External at the rim Drilled face Depth Usable flat area
1590BB2 (Hammond) 119.5 × 94 mm 118.1 × 92.6 mm 33.8 mm 105.6 × 80.1 mm
1590BB 119.5 × 94 mm 116.9 × 91.4 mm 30 mm 104.4 × 78.9 mm
1590BBS 119.5 × 94 mm 117.8 × 92.3 mm 38.1 mm 105.3 × 79.8 mm
1590BB2 (Tayda) 119.9 × 94.2 mm 118.3 × 92.6 mm 33.3 mm 106.3 × 80.6 mm

1590BB2 vs 1590BB

The 1590BB is 1.2 mm narrower, 1.2 mm shorter and 3.8 mm shallower than the 1590BB2. The faces are within about a millimetre of each other, so a drill layout usually carries over; the BB2 simply buys headroom inside.

1590BB2 vs 1590BBS

The 1590BBS is 0.3 mm narrower, 0.3 mm shorter and 4.3 mm deeper than the 1590BB2. Between the two deep variants the BBS gives another 4.3 mm; pick by the tallest part in the build.

Hammond vs the Tayda 1590BB2

Tayda's 1590BB2-style enclosure is its own casting, not a relabelled Hammond, and we measure both. Across the drilled face it runs +0.2 mm in width and +0 mm in height against the Hammond, with 2 mm walls (Hammond: 2.3 mm) and 33.3 mm of depth (Hammond: 33.8 mm). A drill layout made for one fits the other for ordinary builds; re-check tight clearances near the walls and corners. Both castings are in the comparison tool if you want them drawn to scale.

1590BB2 FAQ

What are the dimensions of a 1590BB2 enclosure?

A Hammond 1590BB2 measures 119.5 × 94 mm × 33.8 mm externally at the open rim (4.70 × 3.70 in). The drilled face measures 118.1 × 92.6 mm, and the usable flat area inside the walls and corner screw bosses is about 105.6 × 80.1 mm.

How thick are the walls of a 1590BB2?

The 1590BB2's walls are 2.3 mm thick, with a casting draft of 0.7 mm per side from the drilled face to the open rim.

Is there a drill template for the 1590BB2?

Yes. The free Stompbox Layout editor includes the 1590BB2 as a preset and prints a true-size PDF drill template of your layout, with a ruler to verify print scale.

Every enclosure size

1590LB

49.3 × 49.3 mm face, 27 mm deep

Dimensions →

1590A

37.1 × 91.2 mm face, 27 mm deep

Dimensions →

1590B

59.3 × 111.2 mm face, 27 mm deep

Dimensions →

1590BS

58.6 × 110.1 mm face, 38 mm deep

Dimensions →

125B

63.6 × 119.3 mm face, 35.8 mm deep

Dimensions →

1590BB

116.9 × 91.4 mm face, 30 mm deep

Dimensions →

1590BBS

117.8 × 92.3 mm face, 38.1 mm deep

Dimensions →

1590J

143.4 × 93.4 mm face, 45.1 mm deep

Dimensions →

1590XX

143.4 × 119.4 mm face, 35.2 mm deep

Dimensions →

1590P1

80.6 × 150.6 mm face, 46.4 mm deep

Dimensions →

1590DD

185.7 × 117.7 mm face, 33 mm deep

Dimensions →

Or see them drawn to scale, side by side.

Plan your 1590BB2 layout

Place the drill holes on a 1590BB2 in the editor, check everything clears the walls and the screw bosses, then print a true-size PDF drill template. Free, in your browser.

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