https://github.com/vitaris/cnc02

Configuration of DIY hobby CNC02 machine
https://github.com/vitaris/cnc02

cnc linuxcnc pidicnc raspberry-pi stepper-motor

Last synced: 3 months ago
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Configuration of DIY hobby CNC02 machine

• Host: GitHub
• URL: https://github.com/vitaris/cnc02
• Owner: Vitaris
• Created: 2021-10-02T12:46:18.000Z (over 4 years ago)
• Default Branch: main
• Last Pushed: 2025-09-23T13:30:12.000Z (9 months ago)
• Last Synced: 2025-09-23T15:16:00.295Z (9 months ago)
• Topics: cnc, linuxcnc, pidicnc, raspberry-pi, stepper-motor
• Homepage:
• Size: 104 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

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README

          
# CNC02 - LinuxCNC Configuration

![CNC02](cnc_02_cad.jpg)

## Overview

DIY 3‑axis hobby CNC router controlled by LinuxCNC. Uses a single PIDI‑3805 board for step/dir, homing inputs, and spindle on/off. The config is a compact example of implementing a PIDI‑based stepper setup with a the HW based step generators.

## Machine

- Kinematics/units: trivkins XYZ in mm ([src/CNC_02.ini](src/CNC_02.ini)).

- Travel limits: X 0–380 mm, Y 0–400 mm, Z −75–0 mm ([src/CNC_02.ini](src/CNC_02.ini)).

- Max velocity/accel: X/Y 65, Z 25; accel 750; stepgen max accel 937.5 ([src/CNC_02.ini](src/CNC_02.ini)).

- Steps per mm: X/Y 4266.6667; Z 12800 ([src/CNC_02.ini](src/CNC_02.ini)).

## Control system (PIDI‑3805)

- Threads: base 100 µs, servo 1 ms ([src/CNC_02.ini](src/CNC_02.ini), [src/CNC_02.hal](src/CNC_02.hal)).

- Per‑axis PID: P=1, I=0, D=0, FF1=1, deadband 0.0025; command from joint motor‑pos‑cmd, feedback from PIDI step position, output drives step speed ([src/pidi3805.hal](src/pidi3805.hal)).

- Enables/homing: joint enables to step channels 1–3; home switches on bin 0–2 (active‑low) ([src/pidi3805.hal](src/pidi3805.hal)).

- Spindle: on/off via bout.10; no analog speed ([src/pidi3805.hal](src/pidi3805.hal)).

- E‑stop: internal enable forced on (no external chain) ([src/pidi3805.hal](src/pidi3805.hal)).

## Operator interface

- AXIS UI with halui; XHC‑HB04 pendant configured (layout 2, mm) ([src/CNC_02.ini](src/CNC_02.ini)).

- Manual tool change helper enabled; sample tools in table ([src/pidi3805.hal](src/pidi3805.hal), [src/tool.tbl](src/tool.tbl)).

## Key files

- INI: [src/CNC_02.ini](src/CNC_02.ini)

- Core HAL: [src/CNC_02.hal](src/CNC_02.hal), [src/pidi3805.hal](src/pidi3805.hal)