Gape Drill Template

Fuzz Dog · 1590B

Gape drill template: 1590B 1-Knob (Type 1) layout in a Hammond 1590B enclosure

Template details

Circuit
Gape
Vendor
Fuzz Dog
Enclosure
Hammond 1590B
Dimensions
59.3 × 111.2 × 27 mm
Layout
1590B 1-Knob (Type 1)
Category
Guitar effect

Export formats

  • PDF: print at 1:1 scale
  • SVG: vector graphic
Open in editor →

About this drill template

Drill template for the Fuzz Dog Gape, sized for a Hammond 1590B enclosure (59.3 × 111.2 × 27 mm). The pre-positioned holes match the PCB's pot footprint exactly, with the footswitch centred below the 1-knob layout. Print at 1:1 scale, tape to the enclosure face, centre-punch, and drill. PCB and parts not included.

Fuzz Dog description: “Beautifully simple pedal - who doesn't love a one-knobber after all?”

The one-knob version of the BMF Wide Open, stripped back so there is nothing to set beyond the single control. Easy build and a small parts count.

Vendor build documentation →

View on Fuzz Dog →

Build notes

The Hammond 1590B is the standard small DIY pedal enclosure: compact enough for a crowded board, large enough for most single-effect PCBs and a 9V battery.

Vendor specs: PCB 50 x 24mm, build difficulty easy.

Drill measurements

Hole centres for the 1590B 1-Knob (Type 1) layout. X runs left to right from the centre of the face being drilled. On the enclosure face, Y is measured from the centre, positive towards the top. For holes on a side, Y is the distance down the wall, measured from the face edge. Export the PDF for a 1:1 printable version with a scale check.

HoleFaceX (mm)Y (mm)Diameter
PotEnclosure face0347 mm (0.28 in)
LEDEnclosure face-14-37.65 mm (0.20 in)
FootswitchEnclosure face0-37.612 mm (0.47 in)
DC JackRight side-37.613.512 mm (0.47 in)
JackRight side-17.613.59.5 mm (0.37 in)
JackLeft side-17.613.59.5 mm (0.37 in)

Never drilled one before? How to drill a pedal enclosure walks you through the entire process, from punching the centres to the final step drill size.

A 3D printed drill jig sitting over a pedal enclosure, with holes over each drilling position and a wall wrapping onto the side.
3D printable drill jig

Jig A covers 1590B 1-Knob (Type 1)

Drop it over the enclosure, punch a mark through the holes this build uses, then lift it off and drill. It wraps onto the sides too, so the jacks and DC socket are covered.

See the jig pack, $12 →

Need a different layout?

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