Tag Archives: lasercut

Computer, Hobby, IOT / Domoticz

Bash-completion, C64 Pico Amplifier and Laser cutting

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Worked on bash autocompletion for QP

source below script to get
qp <tab><tab> shortcode

Not happy with both versions yet … 

#/usr/bin/env bash

# Version 0.1
qpcompl()
{
  COMPREPLY=($(compgen -W "$(qp | cut -f2 -d \' )" "${COMP_WORDS[1]}"))
}
complete -F qpcompl qp
--------------------------------------------------------------------------------------
# V 0.2
_qp_complete() {
    local cur prev opts
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-2]}"
    opts="add del"

    case "${prev}" in
        add)
            COMPREPLY=( $(compgen -d -- ${cur} ))
            return 0
            ;;
        del)
            COMPREPLY=( $(compgen -f -- ${cur}) )
            return 0
            ;;
        *)
            COMPREPLY=( $(compgen -W "$(echo add; echo del ;echo "" ; qp)" -- ${cur}) )
            return 0
            ;;
    esac
}

complete -F _qp_complete -o nospace qp

Game controllers : left into right setup

My Bus Manipulator

And a Jigsaw in progress (with our own made clock in the background)

Own made clock

C64 Pico Amplifier

My C64 had a problem with previous attached speaker.
It drew too much current to drive. And random characters where printed.
Choosing another speaker and a minimal amplifier solved the issue.
(Thanks to Bigred finding the problem at Bornhack 2024)

My minimal amplifier for:

Using below mini speaker:

Computer, Hobby, IOT / Domoticz

QuickPath and laser cut designs

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Today I made a Linux version of Tyrone’s QuickPath tool.

My friend Tyrone came up with a great idea.

A directory switching tool, to move around in often used directories.
You can use a keyword to move around. These keywords are configured in a config file.
Even starting Total Commander with preset directories.
Work/Private/Programming environments.
His version uses PowerShell, but he wanted a multiplatform version, so we have chosen to use Python on both environments.

My version uses Python and Bash.
(Bash is used for a change directory workaround on Linux and bash completion.)

Source will be in Tyrone’s git when finished.

Options:

  • qp – lists config items with number and short key
  • qp 1 or qp c64demo – changes directory to below example
  • qp add c64demo /data/store/git/projects/c64code2024 – add a entry
  • qp del 1 – removes entry
  • qp mc tmp c64demo – starts midnight commander with left and right directories

Tomorrow some laser cutting, so let’s design some things to cut.

  • Jigsaw test – using engraving and cutting
  • Make a front for my bus manipulator
  • Make some cases for the game controllers (These are beta, and will be 3D printed at a later stage. My old 3D printer is slow)
Computer, IOT / Domoticz, Music, Pipes / Folk / Instruments

Today some lasercutting for Home Assistant Spotify RFID

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see:

Revisiting the Spotify Cube

Lasercutting a case and the playlist selectors.

Close-up RFID stickers I’m using.

Below is a test with different methods.
I like reading the booklets, so a CD i cool, and I don’t need a CD player.
(The RFID tag is in the case)
The little cards are for bought audio files I don’t have a physical CD for.

Wooden case with RFID reader being powered by external powerbank

What am I gonna do?
Cube as I had? Wooden playlist selectors as in above movies?
The cards I’ve printed?
Maybe a small record player with an RFID reader inside?

3D printed like this? https://makerworld.com/en/models/66671
UPDATE: 20240327 – Little Record I 3D printed with little groves.

Home Assistant code for Playlist and Album automations
(B.t.w. The method is still using an Arduino and MQTT topics, as mentioned before)

# ALBUM PLAYER
alias: SpotifyAlbum
description: ""
trigger:
  - platform: mqtt
    topic: spotify/rfid/id
condition:
  - condition: template
    value_template: "{{ trigger.payload in playlistkeys.keys() }}"
action:
  - service: media_player.play_media
    target:
      entity_id: media_player.spotify_fashice
    data:
      media_content_type: album
      media_content_id: spotify:album:{{ playlistkeys.get(trigger.payload) }}
mode: single
variables:
  playlistkeys:
    "71719674": 20TANs4iXVeLp387zjgmec
    "71260666": 5325ECcBhnIysoqyENGCYi
    "71457530": 7wyOeD9HcUuMFMO8pTflap

# PLAYLIST PLAYER
alias: SpotifyCube
description: ""
trigger:
  - platform: mqtt
    topic: spotify/rfid/id
condition:
  - condition: template
    value_template: "{{ trigger.payload in playlistkeys.keys() }}"
action:
  - service: media_player.play_media
    target:
      entity_id: media_player.spotify_fashice
    data:
      media_content_type: playlist
      media_content_id: spotify:user:spotify:playlist:{{ playlistkeys.get(trigger.payload) }}
variables:
  playlistkeys:
    "69229050": 0SOay3RkjojjevrF5lHMON
    "69491194": 5f8w3UHlD9Ozz6Y4VHs6kF
    "69753338": 0bJvpsn0TDZwIDUjz4d75S
    "70015482": 37i9dQZF1DX9HwI3Crikcm
    "70277626": 37i9dQZF1EQmK1rjZuPGDt
    "70539770": 2KeRLMmGMxI5UgzE7m0iCp

In the past, Aloha and I made a simple solution like this using barcodes in < 2000s.
Due to the many obscure recordings I have, I am thinking about creating something like this for Picore player and my local Squeezebox server.

Logitech Squeezebox / Media Server Solution

alias: squeezealbumplay
description: ""
trigger:
  - platform: mqtt
    topic: spotify/rfid/id
condition:
  - condition: template
    value_template: "{{ trigger.payload in playlistkeys.keys() }}"
action:
  - service: squeezebox.call_method
    target:
      entity_id: media_player.squeezebox
    data:
      command: playlist
      parameters:
        - play
        - "{{ playlistkeys.get(trigger.payload) }}"
mode: single
variables:
  playlistkeys:
    "71719674": /tank/celtic/Celtic/M/Martyn Bennett/Bothy Culture/
    "71719675": /tank/celtic/Celtic/D/Davy Spillane/Atlantic Bridge/
    "2159056458": /tank/celtic/Celtic/M/Michael McGoldrick/Arc/
Art, Hobby

Laser cutting a door sign

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I’ve got a nice stone slate, perfect for a door sign.

I wanted to paint our names and house number. But now that i’ve got a lasercutter, lets do that.

I’m going to use the design i’ve used for the Folkband Bags, and add some stuff.

First test on the back of the slate

Using a Sculpfun S9, Power 100 and speed 100mm/s

I will add the final result to this page

Art, Tech

At last .. my own lasercutter

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I did a lot of lasercutting at Fablab Utrecht, but they stopped a few years ago, and I moved to Hilversum.

I loved making this at this Fablab.

  • Lasercutting : Boxes, A cryptex of my own design, Xmas ornaments, Shogi game, things in acrylic, Rubber stamps
  • Cutting plotter ( Nae Bother Case logo’s )
  • CNC Machines
  • Vacuum form
Shogi game lasercut
Laser engraved rubber for a AudioCD stamp

Then i bought a mini engraver, which you can attach to your 3D printer.

Laser engraved my laptop

But I really wanted a cutter, so there it is … the Sculptfun S9

First test. crafting paper. No burning and a really high resolution!

This laser module has a new optical design, so it can cut wood as thick as 10+ mm.
It can engrave metal, cut non-transparant acrylic, leather and more.

Software:

I’m using Inkscape, with the lasercutter tool plugin from Jtech.
https://jtechphotonics.com/

I’ve also tested with LaserGRBL, which can be run under linux using Wine.

I’m trail testing LightBurn. (Native Linux App)

I will post my findings and test on this post.

UPDATE: 20230221

A stone slate engraved
Speed3000 mm/s
Laser Power100%
Lines per mm10

UPDATE: 20230306

Calibrate your machine! .. But NOT as found on YouTube using a 10x10mm or 1 inch by 1 inch. square.
As big as you can. This is far more precise!

My list of settings (Work in progress)

I have to check mm/s versus mm/minute!

MaterialSpeedPowerLines/mmPasses
Slate (engrave)
(using lasergrbl)		3000 mm/s100%101
3mm Plywood (cut)20 mm/s90%x8?
Craftpaper1500mm/s70%x1
Cardboard10 mm/s100%x4
Leather
Cork (6mm)

Inkscape
LaserGrbl under Linux
Lightburn