===== Headless Bass =====

==== Ressourcen ====
=== Holz ===

  * Bubinga
  * Ebenholz
  * Mahagonie
  * Wenge Furnier
  * Walnuss Wurzelholz
{{:projekte:headless_bass:1.jpg?600|}}

=== Design ===
{{:projekte:headless_bass:vorlage_outlines_multiscale_headless.png?600|}}

=== Lasercutting Templates ===
{{:projekte:headless_bass:neck_template.svg|}}

{{:projekte:headless_bass:28.png?600|}}

[[https://www.youtube.com/watch?v=qzqBLmHCoDc|Video]]

==== Mechanik ====

  * CAD Design
{{:projekte:headless_bass:bridge.png?300|}}{{:projekte:headless_bass:knob_head.png?300|}}
  * Messing Profile auf Maße kappen
{{:projekte:headless_bass:11.png?300|}}
  * Fräsen, Drehen, Bohren, Senken, Schleifen, ...
[[https://www.youtube.com/watch?v=A9URrt8yOgQ|Video (Prototyp)]]

{{:projekte:headless_bass:18.png?300|}}{{:projekte:headless_bass:13.png?300|}}{{:projekte:headless_bass:25.png?300|}}{{:projekte:headless_bass:27.png?300|}}
{{:projekte:headless_bass:29.png?300|}}
  * GCode:

Werkbett 1
<code>%

(Creates a nice bed to place the workpiece)

G21 (using mm)
G40 (manual toolrad comp)

(Operation config)
#<z-safe> = 20 (safe height)
#<z-feed> = 0.5 (depth feed steps)
#<toolrad> = 4
#<feedrate> = 200

(Workpiece params)
#<width> = [15 + 0.5] (2 x .25mm margin for workpiece)
#<length> = [93.8 + 0.5] (2 x .25mm margin for workpiece)
#<depth> = -2

G00 X0 Y0 Z[#<z-safe>] 


(Corners)

	G00 X[#<width> * 0.5] Y[#<length> * 0.5]
	G01 Z[#<depth>] F[#<feedrate>]
	G00 Z[#<z-safe>]

	G00 X[#<width> * -0.5]
	G01 Z[#<depth>] F[#<feedrate>]
	G00 Z[#<z-safe>]

	G00 Y[#<length> * -0.5]
	G01 Z[#<depth>] F[#<feedrate>]
	G00 Z[#<z-safe>]

	G00 X[#<width> * 0.5]
	G01 Z[#<depth>] F[#<feedrate>]
	G00 Z[#<z-safe>]
	
(Return to Origin)
G00 X0 Y0 Z[#<z-safe>] 

(Square)

	G00 X[#<width> * 0.5 - #<toolrad>]
	
	G01 Z[#<depth>] F[#<feedrate>]
	
	G01 Y[#<length> * -0.5 + #<toolrad>] F[#<feedrate>]

	G01 X[#<width> * -0.5 + #<toolrad>] F[#<feedrate>]
	
	G01 Y[#<length> * 0.5 - #<toolrad>] F[#<feedrate>]
	
	G01 X[#<width> * 0.5 - #<toolrad>] F[#<feedrate>]
	
	G01 Y0 F[#<feedrate>]

	G00 Z[#<z-safe>]
	
(Return to Origin)
G00 X0 Y0 Z[#<z-safe>] 

%
</code>

Aussparung 1
<code>%

(Creates the first, closed pocket)

G21 (using mm)
G40 (manual toolrad comp)

(Operation config)
#<z-safe> = 20 (safe height)
#<z-feed> = 0.25 (depth feed steps)
#<toolrad> = 4
#<feedrate> = 200

(Workpiece params)
#<wp_length> = 93.8
#<width> = [12 + 0.2] (0.1mm margin on each side)
#<length> = 40
#<depth> = [8 + 1] (1mm safety margin)

#<steps> = [#<depth> / #<z-feed>]

G00 X0 Y0 Z[#<z-safe>]

G00 Y[#<wp_length> * 0.5 - #<toolrad> - 8] X[#<width> * 0.5 - #<toolrad>]

#<current_depth> = [#<depth>]

O101 repeat [#<steps>]

	#<current_depth> = [#<current_depth> - #<z-feed>]

	G01 Z[#<current_depth>] F[#<feedrate> * 0.05]
	G01 Y[#<wp_length> * 0.5 - #<toolrad> - #<length> - 8] F[#<feedrate>]
	G01 X[#<width> * -0.5 + #<toolrad>] F[#<feedrate>]
	G01 Y[#<wp_length> * 0.5 - #<toolrad> - 8] F[#<feedrate>]
	G01 X[#<width> * 0.5 - #<toolrad>] F[#<feedrate>]

O101 endrepeat

G00 Z[#<z-safe>]

(Return to Origin)
G00 X0 Y0 Z[#<z-safe>] 
%
</code>

Aussparung 2
<code>%

(Creates a the second, open pocket)
(flip workpiece with closed pocket facing down on the clamped side)

G21 (using mm)
G40 (manual toolrad comp)

(Operation config)
#<z-safe> = 20 (safe height)
#<z-feed> = 0.25 (depth feed steps)
#<toolrad> = 4
#<feedrate> = 200

(Workpiece params)
#<wp_length> = 93.8
#<width> = [12 + 0.2] (0.1mm margin on each side)
#<length> = 46.9
#<depth> = [8 + 1] (1mm safety margin)

#<steps> = [#<depth> / #<z-feed>]

G00 X0 Y0 Z[#<z-safe>]

G00 Y[#<wp_length> * 0.5 + #<toolrad>] X[#<width> * 0.5 - #<toolrad>]

#<current_depth> = [#<depth>]

O101 repeat [#<steps>]

	#<current_depth> = [#<current_depth> - #<z-feed>]

	G01 Z[#<current_depth>] F[#<feedrate>]
	G01 Y[#<wp_length> * 0.5 - #<toolrad> - #<length>] F[#<feedrate>]
	G01 X[#<width> * -0.5 + #<toolrad>] F[#<feedrate>]
	G01 Y[#<wp_length> * 0.5 + #<toolrad>] F[#<feedrate>]
	G01 X[#<width> * 0.5 - #<toolrad>] F[#<feedrate>]

O101 endrepeat

G00 Z[#<z-safe>]

(Return to Origin)
G00 X0 Y0 Z[#<z-safe>] 
%
</code>

Seitliche Verrundung

<code>%

(creates a bevel on the back side)
(clamp workpiece on open pocket)

G21 (using mm)
G40 (manual toolrad comp)

(Operation config)
#<z-safe> = 20 (safe height)
#<z-feed> = 0.25 (depth feed steps)
#<toolrad> = 4
#<feedrate> = 200

(Workpiece params)
#<wp_width> = 15
#<depth> = [10 + 1] (1mm safety margin)
#<bevel> = 3
#<wp_length> = [93.8 - #<bevel> + 2.5]

#<steps> = [#<depth> / #<z-feed> * 0.5]

G00 X0 Y0 Z[#<z-safe>]

G00 Y[#<wp_length> * 0.5 + #<toolrad> - [#<bevel> + #<toolrad>]] X[#<wp_width> * 0.5 + #<toolrad>]

#<current_depth> = [#<depth>]

O101 repeat [#<steps>]

	#<current_depth> = [#<current_depth> - #<z-feed>]

	G01 Z[#<current_depth> - 2] F[#<feedrate>]
	
	G03 X[#<wp_width> * 0.5 + #<toolrad> - [#<bevel> + #<toolrad>]] Y[#<wp_length> * 0.5 + #<toolrad>] I[[#<bevel> + #<toolrad>] * -1] F[#<feedrate>]	
	G01 X[#<wp_width> * -0.5 - #<toolrad> + [#<bevel> + #<toolrad>]] F[#<feedrate>]	
	G03 X[#<wp_width> * -0.5 - #<toolrad>] Y[#<wp_length> * 0.5 + #<toolrad> - [#<bevel> + #<toolrad>]] J[[#<bevel> + #<toolrad>] * -1] F[#<feedrate>]
	
	#<current_depth> = [#<current_depth> - #<z-feed>]

	G01 Z[#<current_depth> - 2] F[#<feedrate>]
	
	G02 X[#<wp_width> * -0.5 - #<toolrad> + [#<bevel> + #<toolrad>]] Y[#<wp_length> * 0.5 + #<toolrad>] I[[#<bevel> + #<toolrad>]] F[#<feedrate>]
	G01 X[#<wp_width> * 0.5 + #<toolrad> - [#<bevel> + #<toolrad>]] F[#<feedrate>]
	G02 Y[#<wp_length> * 0.5 + #<toolrad> - [#<bevel> + #<toolrad>]] X[#<wp_width> * 0.5 + #<toolrad>] J[[#<bevel> + #<toolrad>] * -1] F[#<feedrate>]

O101 endrepeat

G00 Z[#<z-safe>]

(Return to Origin)
G00 X0 Y0 Z[#<z-safe>] 
%
</code>

Werkbett 2

<code>%

(Creates a nice bed to place the workpiece)

G21 (using mm)
G40 (manual toolrad comp)

(Operation config)
#<z-safe> = 20 (safe height)
#<z-feed> = 0.5 (depth feed steps)
#<toolrad> = 4
#<feedrate> = 200

(Workpiece params)
#<width> = [10 + 0.5] (2 x .25mm margin for workpiece)
#<length> = [93.8 + 0.5] (2 x .25mm margin for workpiece)
#<depth> = -2

G00 X0 Y0 Z[#<z-safe>] 


(Corners)

	G00 X[#<width> * 0.5] Y[#<length> * 0.5]
	G01 Z[#<depth>] F[#<feedrate>]
	G00 Z[#<z-safe>]

	G00 X[#<width> * -0.5]
	G01 Z[#<depth>] F[#<feedrate>]
	G00 Z[#<z-safe>]

	G00 Y[#<length> * -0.5]
	G01 Z[#<depth>] F[#<feedrate>]
	G00 Z[#<z-safe>]

	G00 X[#<width> * 0.5]
	G01 Z[#<depth>] F[#<feedrate>]
	G00 Z[#<z-safe>]
	
(Return to Origin)
G00 X0 Y0 Z[#<z-safe>] 

(Square)

	G00 X[#<width> * 0.5 - #<toolrad>]
	
	G01 Z[#<depth>] F[#<feedrate>]
	
	G01 Y[#<length> * -0.5 + #<toolrad>] F[#<feedrate>]

	G01 X[#<width> * -0.5 + #<toolrad>] F[#<feedrate>]
	
	G01 Y[#<length> * 0.5 - #<toolrad>] F[#<feedrate>]
	
	G01 X[#<width> * 0.5 - #<toolrad>] F[#<feedrate>]
	
	G01 Y0 F[#<feedrate>]

	G00 Z[#<z-safe>]
	
(Return to Origin)
G00 X0 Y0 Z[#<z-safe>] 

%
</code>

Vordere Verrundung

<code>%

(Creates the second bevel on the front side)
(flip workpiece with closed pocket facing down on the clamped side)

G21 (using mm)
G40 (manual toolrad comp)

(Operation config)
#<z-safe> = 20 (safe height)
#<z-feed> = 0.25 (depth feed steps)
#<toolrad> = 4
#<feedrate> = 200

(Workpiece params)
#<wp_length> = 88
#<wp_width> = 10
#<depth> = [15 + 1] (1mm safety margin)
#<bevel> = [10 + #<toolrad>]

#<steps> = [#<depth> / #<z-feed> * 0.5]

G00 X0 Y0 Z[#<z-safe>]

G00 Y[#<wp_length> * 0.5 + #<toolrad> - #<bevel>] X[#<wp_width> * 0.5 + #<toolrad>]

#<current_depth> = [#<depth>]

O101 repeat [#<steps>]

	#<current_depth> = [#<current_depth> - #<z-feed>]

	G01 Z[#<current_depth> - 2] F[#<feedrate>]
	
	G03 X[#<wp_width> * 0.5 + #<toolrad> - #<bevel>] Y[#<wp_length> * 0.5 + #<toolrad>] I[#<bevel> * -1] F[#<feedrate>]	
	
	#<current_depth> = [#<current_depth> - #<z-feed>]

	G01 Z[#<current_depth> - 2] F[#<feedrate>]
	
	G02 X[#<wp_width> * 0.5 + #<toolrad>] Y[#<wp_length> * 0.5 + #<toolrad> - #<bevel>] J[#<bevel> * -1] F[#<feedrate>]

O101 endrepeat

G00 Z[#<z-safe>]

(Return to Origin)
G00 X0 Y0 Z[#<z-safe>] 
%
</code>

  * Knöpfe Rändeln für mehr Grip
{{:projekte:headless_bass:81.png?300|}}
  * Kopfstück designen ✔
  * Fräsen, Bohren ✔
<code>%

G21 (using mm)
G40 (manual toolrad comp)

#<feed> 			= 400.000000 (Feed definition)
#<z_feed_rate> 		= 100.000000 (Feed definition)

#<depth> 	 		= 9.5 (Pocket depth)
#<z_feed> 	 		= 0.25 
#<string_spacing>	= 9
#<strings>			= 6
  
#<z-safe> 			= 5

#<steps> 			= [#<depth> / #<z_feed>]
#<n>				= 0
#<current_depth>	= 0

O101 repeat [#<strings>]

	G00 Z[#<z-safe>]
	
	#<current_depth>	= 0
	
	O102 repeat [#<steps>]

		#<current_depth> = [#<current_depth> - #<z_feed>]
		
		G00 Y[5.900 + #<string_spacing> * #<n>] X[-7.150] F[#<feed>]

		G01 Z[#<current_depth>] F[#<z_feed_rate>]

		G02 Y[5.900 + #<string_spacing> * #<n>] X[-7.150] I[0.950] F[#<feed>]		

	O102 endrepeat	
	
	#<n> = [#<n> + 1]
	
O101 endrepeat

G00 Z[#<z-safe>]
G00 X0 Y0
%
</code>
<code>%

G21 (using mm)
G40 (manual toolrad comp)

#<feed> 			= 400.000000 (Feed definition)
#<z_feed_rate> 			= 100.000000 (Feed definition)

#<depth> 	 		= 8.5 (Pocket depth)
#<z_feed> 	 		= 0.25 
#<string_spacing>	= 9
#<strings>			= 6
  
#<z-safe> 			= 5

#<steps> 			= [#<depth> / #<z_feed>]
#<n>				= 0
#<current_depth>	= 0

O101 repeat [#<strings>]

	G00 Z[#<z-safe>]
	
	#<current_depth>	= 0
	
	O102 repeat [#<steps>]

		#<current_depth> = [#<current_depth> - #<z_feed>]
		
		G00 Y[10.440 + #<string_spacing> * #<n>] X[13.148] F[#<feed>]
		
		G01 Z[#<current_depth>] F[#<z_feed_rate>]
		
		G01 Y[3.394 + #<string_spacing> * #<n>] X[-13.148] F[#<feed>]
		G01 Y[4.694 + #<string_spacing> * #<n>] F[#<feed>]
		G01 Y[11.740 + #<string_spacing> * #<n>] X[13.148] F[#<feed>]

	O102 endrepeat	
	
	#<n> = [#<n> + 1]
	
O101 endrepeat

G00 Z[#<z-safe>]
G00 X0 Y0
%
</code>
<code>%

G21 (using mm)
G40 (manual toolrad comp)

#<feed> 			= 400.000000 (Feed definition)
#<z_feed_rate> 		= 100.000000 (Feed definition)

#<z_feed> 	 		= 0.25 
#<string_spacing>	= 9
  
#<z-safe> 			= 5


(Hole 1, 4.2mm)

#<current_depth> 	= 0
#<depth> 			= [9 + 4.121]
#<steps> 			= [#<depth> / #<z_feed>]

G00 Z[#<z-safe>]
G00 X[-0.1] Y[15.378 + 0.1] F[#<feed>]

O101 repeat [#<steps>]

	#<current_depth> = [#<current_depth> - #<z_feed>]

	G01 Z[#<current_depth>] F[#<z_feed_rate>]

	G02 X[-0.1] Y[15.378 + 0.1] I[0.1] F[#<feed>]		

O101 endrepeat

(Hole 2, 7mm)

#<current_depth> 	= 0
#<depth> 			= [9 + 6.452]
#<steps> 			= [#<depth> / #<z_feed>]

G00 Z[#<z-safe>]
G00 X[-1.5] Y[26.578] F[#<feed>]

O102 repeat [#<steps>]

	#<current_depth> = [#<current_depth> - #<z_feed>]

	G01 Z[#<current_depth>] F[#<z_feed_rate>]

	G02 X[-1.5] Y[26.578] I[1.5] F[#<feed>]		

O102 endrepeat



(Hole 3, 4.2mm)

#<current_depth> 	= 0
#<depth> 			= [9 + 8.783]
#<steps> 			= [#<depth> / #<z_feed>]

G00 Z[#<z-safe>]
G00 X[-0.1] Y[40.278 + 0.1 - 2.4] F[#<feed>]

O103 repeat [#<steps>]

	#<current_depth> = [#<current_depth> - #<z_feed>]

	G01 Z[#<current_depth>] F[#<z_feed_rate>]

	G02 X[-0.1] Y[40.278 + 0.1 - 2.4] I[0.1] F[#<feed>]		

O103 endrepeat

G00 Z[#<z-safe>]
G00 X0 Y0
%
</code>

{{:projekte:headless_bass:106.png?300|}}
{{:projekte:headless_bass:107.png?300|}}
  * Auf Halsprofil anpassen (Feilen)

==== Hals ====
  * Trussrod Kanal fräsen ✔
{{:projekte:headless_bass:45.png?300|}}
  * Template mit Lasersaur schneiden ✔
  * Grob mit Band- oder Stichsäge zusägen ✔
  * Feinarbeit mit Kopierfräser and der Unterfräse ✔
  * ...
{{:projekte:headless_bass:52.png?300|}}

  * Halsprofil: Verrundetes Trapez mit abflachende Flanken zum Korpus bei konstanter Höhe (mal ein kleines Experiment und Variation einer moderneren Form)
{{:projekte:headless_bass:60.png?300|}}
==== Korpus ====
  * Template mit Lasersaur schneiden ✔
  * Grob mit Band- oder Stichsäge zusägen ✔
  * Bubinga Flügel:
    * <del>Kammern mit Forstner Bohrern an der Bohrpresse verteilen</del>
    * Aussparung für Elektronik fräsen -> CNC
      * GCode mit inkscape erzeugen und editieren:  ✔
<code>%

G21 (using mm)
G40 (manual toolrad comp)

#<feed_rate> = 400.000000 (Feed definition)
#<z_feed_rate> = 100.000000 (Feed definition)

#<depth> = 32 (Pocket depth)
#<z_feed> = 0.5 
 
#<z_offset>  = [-1 * #<depth>] (Z axis offset)
#<x_offset>  = 0 (X axis offset)
#<y_offset>  = 0 (Y axis offset)

#<z_safe> = [30 - #<z_offset>]

G00 Z[#<z_safe> + #<z_offset>]

#<steps> = [#<depth> / #<z_feed>]
#<current_depth> = [#<depth>]

O101 repeat [#<steps>]

	#<current_depth> = [#<current_depth> - #<z_feed>]

	G01 X[32.054936 + #<x_offset>] Y[22.882033 + #<y_offset>]

	G01 Z[ #<current_depth> + #<z_offset>] F [ #<z_feed_rate>](Penetrate)

	...

	G01 X[-19.484225 + #<x_offset>] Y[16.651272 + #<y_offset>] Z[ #<current_depth> + #<z_offset>]

O101 endrepeat

G00 Z[#<z_safe> + #<z_offset>]
G00 X0 Y0
%</code>
      * Fräsen [[https://www.youtube.com/watch?v=IJDeGeClE6Y]] [[https://www.youtube.com/watch?v=X-4hhXkSM1g]]
  * Walnuss Wurzelholz Top:
    * Resawing (in 10mm dicke Bretter sägen) ✔
{{:projekte:headless_bass:32.png?300|}}
    * evtl. mit Epoxy stabilisieren (Astlöcher) ✔
{{:projekte:headless_bass:54.png?300|}}
  * Walnuss Wurzelholz Decke und Bubinga Flügel verleimen ✔
{{:projekte:headless_bass:36.png?300|}}
  * <del>Feinarbeit mit Kopierfräser an der Unterfräse</del>
    * Im Kampf Fräse gegen Bubinga gewann meistens dann doch das Holz: Sehr dicht, Extrem lange Fasern und sehr spröde ... --> Trommelschleifer ✔
{{:projekte:headless_bass:39.png?300|}}

  * Flügel mit Hals verleimen
{{:projekte:headless_bass:57.png?300|}}
{{:projekte:headless_bass:58.png?300|}}
  * Grobe Profilierung des Korpus mit Shinto Sägeraspel und Stechbeitel
{{:projekte:headless_bass:59.png?300|}}
==== Pickups ====
{{:projekte:tumblr_nk0kcw8hc41twvu9io3_1280.png?200|}}
{{:projekte:tumblr_njgzccibhj1twvu9io1_1280.png?200|}}
  * 3D Drucken
  * Wickeln
  * mit 2/3 Bienenwachs/Paraffin einkapseln um mikrofonische Effekte zu verhindern
  * Ausmessen (Spectrum Analyzer?)
==== Elektronik ====
  * Passiv/Aktiv?
  * DSP?
==== Griffbrett ====
  * Oberfläche glatt hobeln ✔
{{:projekte:headless_bass:2.jpg?300|}}
  * Template Lasern ✔
  * Grob zusägen an der Bandsäge ✔
  * Feinschliff mit Kopierfräser ✔
  * Mit Hals verleimen
  * Schnitte für Bünde/Furnierstreifen
    * Radius ([[http://en.wikipedia.org/wiki/Fingerboard#Parameters]]):
    * konstant (12") mit Schleifklotz erzeugen
    * Konisch mit Schlitten und Oberfräse

==== Finish ====
  * Hartwachsöl (Selber mischen <del>oder Osmo High Solid</del>)
    * 2 Teile Carnauba und 3 Teile Bienenwachs im Wasserbad schmelzen
{{:projekte:headless_bass:77.png?300|}}
    * Terpentinbalsam und Leinöl beigeben
    * Schütteln beim Erkalten (30-60min)
{{:projekte:headless_bass:78.png?300|}}
    * Mischung teilen, erwärmen im Wasserbad und mit Leinöl und Terpentinbalsam verdünnen bis im kalten Zustand die Konsistenz passt (dickflüssig für ölen oder hartes Wachs zum polieren)
{{:projekte:headless_bass:79.png?300|}}
==== Weiterführende Links ====
  * [[http://www.talkbass.com/threads/fret-and-headless-neck-through-multiscale-6-string-walnut-burl-mahogany-bubinga.1108412/|Thread auf TalkBass]]
  * [[https://media.ccc.de/browse/conferences/gpn/gpn15/gpn15-6661-a_hackers_approach_to_building_electric_guitars.html#video|Vortrag auf der GPN15]]
  * [[https://media.ccc.de/browse/conferences/camp2015/camp2015-6973-a_hackers_approach_to_building_electric_guitars.html#video|Vortrag auf dem CCCamp15]]