# The skiff target

> For agents: start with the [agent guide](https://parol6.build/llms.txt). Every page is Markdown by default; add `Accept: text/html` for HTML.

**Status: no recommendation yet. Joel picks.**

From [M5](/lore/m5-touch-the-skiff) on, the arm works on a Eurorack skiff: it turns knobs, presses buttons and patches cables.

## What the skiff must fit

- **The Eurorack format.** Panels are 128.5 mm high, and widths are multiples of 1 HP, 5.08 mm ([Doepfer's A-100 construction details](https://www.doepfer.de/a100_man/a100m_e.htm)).
- **The shared base plate.** The arm and the skiff sit on one rigid plate, so a registration stays valid ([Mounting](https://docs.source-robotics.com/PAROL-docs/1.1/04-installation/mounting/)).
- **Reach.** The modules the arm plays must sit inside the arm's workspace ([Kinematics](https://docs.source-robotics.com/PAROL-docs/1.1/03-technical-data/kinematics/)).

**needs\_source:** the skiff, its modules and their measured knob and jack positions.

## Terms

- **skiff**: a shallow, often portable Eurorack case. Here, the case the arm plays.
- **Eurorack**: the modular synthesizer format that Doepfer's A-100 defined, with 3U panels on an HP grid ([A-100 construction details](https://www.doepfer.de/a100_man/a100m_e.htm)).
- **HP**: horizontal pitch, the Eurorack width unit. 1 HP is 5.08 mm ([A-100 construction details](https://www.doepfer.de/a100_man/a100m_e.htm)).

## Sources

1. [A-100 construction details](https://www.doepfer.de/a100_man/a100m_e.htm)
   Doepfer Musikelektronik. 3U panel height of 128.5 mm and the HP grid of 5.08 mm. Accessed 2026-11-07.

2. [Mounting, PAROL6 docs 1.1](https://docs.source-robotics.com/PAROL-docs/1.1/04-installation/mounting/)
   Source Robotics. The robot's base mounting, which the skiff must share a plate with. Accessed 2026-11-07.

## Lore on this page

- [M5. Touch the skiff](/lore/m5-touch-the-skiff)

## What links here

- Agent guide → Joel builds a PAROL6 robot arm, one sourced and filmed milestone at a time. → [Read page](https://parol6.build/llms.txt)

- Build and run the PAROL6 wiki (README.md) → What is in the repo and how to run the wiki locally. → [Read page](https://parol6.build/README.md)

- Change log → What changed in the files served here, newest first. → [Read page](https://parol6.build/log)

- Concepts by milestone → The mental models each milestone teaches, gathered from the milestone pages, with the glossary for single terms. → [Read page](https://parol6.build/lore/concepts)

- Full agent guide → Joel builds a PAROL6 robot arm, one sourced and filmed milestone at a time. → [Read page](https://parol6.build/llms-full.txt)

- M5. Touch the skiff → The fifth milestone registers a Eurorack skiff in the robot's frame, then presses a button and turns a knob to a set position. → [Read page](https://parol6.build/lore/m5-touch-the-skiff)

- M7. Play it → The capstone milestone runs a script that patches cables and moves knobs on cue to perform a short written piece. → [Read page](https://parol6.build/lore/m7-play-it)

- PAROL6 build → Joel builds a PAROL6 robot arm, one sourced and filmed milestone at a time. → [Read page](https://parol6.build/)

- PAROL6 sources and licences → Every build fact on this wiki comes from the official PAROL6 manual and repository, which are linked here with their licences. → [Read page](https://parol6.build/lore/sources)

- PAROL6 wiki | PAROL6 build → The PAROL6 build wiki: the milestones, their videos and the official sources behind them. → [Read page](https://parol6.build/lore)

- Parts by milestone → What goes on the bench at each milestone, gathered from the milestone pages and the official bill of materials. → [Read page](https://parol6.build/lore/parts)

- Purpose of the PAROL6 build wiki (VISION.md) → What the PAROL6 build wiki is for and who it serves. → [Read page](https://parol6.build/VISION.md)

- Source change history (log.md) → The generated change log as Markdown. → [Read page](https://parol6.build/log.md)

- The PAROL6 milestones → Seven milestones take the build from a bare control board to a robot arm that plays a Eurorack skiff. → [Read page](https://parol6.build/lore/milestones)

## Unlinked mentions

- [M5. Touch the skiff](https://parol6.build/lore/m5-touch-the-skiff) → Rails, HP (5.08 mm, from Doepfer’s A-100 construction details), and the jack and knob geometry of each module.¶