Muffinator Fuzz Drill Template
PedalPCB · 125B
Template details
- Circuit
- Muffinator Fuzz
- Vendor
- PedalPCB
- Enclosure
- Hammond 125B
- Dimensions
- 63.6 × 119.3 × 35.8 mm
- Layout
- 125B 3-Knob (Type 1)
- Category
- Fuzz
Export formats
- PDF: print at 1:1 scale
- SVG: vector graphic
About this drill template
Drill template for the PedalPCB Muffinator Fuzz, sized for a Hammond 125B enclosure (63.6 × 119.3 × 35.8 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.
PedalPCB description: “Compare to EHX Big Muff Pi”
Compared to the Electro-Harmonix Big Muff Pi, with a twist: alongside the classic Volume, Tone and Sustain it adds Clip 1 and Clip 2 switches that swap the diodes in each clipping stage, so you can move between Muff voicings in one build.
Big, wall-of-sound Muff fuzz with switchable clipping for tighter or more open, saggy variations.
Build notes
Three-knob layouts are the most common pedal format (gain, tone, level) with the pots centred above the footswitch.
The Hammond 125B is one of the most common DIY pedal enclosures: a touch larger than a 1590B, slightly smaller than a 1590BB, with room for almost any single-effect PCB plus 9V supply.
Vendor specs: Designed for a 125B enclosure with top-mounted jacks
Controls
- Volume
- Tone
- Sustain
- Clip 1: Selects diodes in first clipping stage
- Clip 2: Selects diodes in second clipping stage
Drill measurements
Hole centres for the 125B 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 |
|---|---|---|---|---|
| LED | Enclosure face | 0 | 38.1 | 6.4 mm (0.25 in) |
| Pot | Enclosure face | -16.5 | 38.1 | 7 mm (0.28 in) |
| Pot | Enclosure face | 16.5 | 38.1 | 7 mm (0.28 in) |
| Pot | Enclosure face | 0 | 12.7 | 7 mm (0.28 in) |
| Footswitch | Enclosure face | 0 | -45 | 12 mm (0.47 in) |
| DC Jack | Top side | 0 | 14.2 | 8 mm (0.31 in) |
| Jack | Top side | -15.2 | 24.3 | 9.5 mm (0.37 in) |
| Jack | Top side | 15.3 | 24.3 | 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.
Jig A covers 125B 3-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 →