Brain Bomb Drill Template
Fuzz Dog · 1590B
Template details
- Circuit
- Brain Bomb
- Vendor
- Fuzz Dog
- Enclosure
- Hammond 1590B
- Dimensions
- 59.3 × 111.2 × 27 mm
- Layout
- 1590B 3-Knob (Type 1)
- Category
- Guitar effect
Export formats
- PDF: print at 1:1 scale
- SVG: vector graphic
About this drill template
Drill template for the Fuzz Dog Brain Bomb, 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 3-knob layout. Print at 1:1 scale, tape to the enclosure face, centre-punch, and drill. PCB and parts not included.
Fuzz Dog description: “Nice PT2399-based vibrato/chorus with a twist.”
A Seppuku Mind Warp style vibrato/chorus built around the PT2399 delay chip, whose inherent modulation gives it a warm, organic wobble. The Warp control bends the LFO for stranger movement than a standard vibrato.
The Depth control is labelled Blend on the PCB.
Build notes
Three-knob layouts are the most common pedal format (gain, tone, level) with the pots centred above the footswitch.
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 46mm, build difficulty medium.
Knobs
- Speed
- Depth
- Warp
Drill measurements
Hole centres for the 1590B 3-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.
| Hole | Face | X (mm) | Y (mm) | Diameter |
|---|---|---|---|---|
| Pot | Enclosure face | -16 | 42 | 7 mm (0.28 in) |
| Pot | Enclosure face | 16 | 42 | 7 mm (0.28 in) |
| Pot | Enclosure face | 0 | 20 | 7 mm (0.28 in) |
| LED | Enclosure face | -14 | -37.6 | 3 mm (0.12 in) |
| Footswitch | Enclosure face | 0 | -37.6 | 12 mm (0.47 in) |
| DC Jack | Right side | -37.6 | 13.5 | 12 mm (0.47 in) |
| Jack | Right side | -17.6 | 13.5 | 9.5 mm (0.37 in) |
| Jack | Left side | -17.6 | 13.5 | 9.5 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.
Print a drill jig for your own build
The editor turns a layout into a jig for the exact enclosure you picked. It fits snugly, so it stays put while you punch and every mark lands where your layout puts it. It marks the side faces as well, so the jacks and the DC socket are covered.
See the drill jig, $29 →