{"id":155,"date":"2026-08-14T01:36:26","date_gmt":"2026-08-13T23:36:26","guid":{"rendered":"https:\/\/www.modellbau-yodi.de\/aax\/?p=155"},"modified":"2026-08-14T01:36:26","modified_gmt":"2026-08-13T23:36:26","slug":"ein-blech-fuer-die-funke","status":"publish","type":"post","link":"https:\/\/www.modellbau-yodi.de\/aax\/2026\/08\/14\/ein-blech-fuer-die-funke\/","title":{"rendered":"Ein Blech f\u00fcr die Funke"},"content":{"rendered":"

Ich habe mich entschlossen mein kleines Funkger\u00e4t in mein Elektroauto einzubauen. Aber wohin ? So kam ich auf die Idee ein Blech anzufertigen das genau in den Himmel des Autos passt. \"\"<\/a><\/p>\n

<\/p>\n

Im Auto sind umlaufend\u00a0 20er Vierkantrohre so das ich das Blech dort mir kleinen Bohrschr\u00e4ubchen anschrauben kann. Zum konstruieren habe ich OpenSCAD<\/a> genommen. OpenSCAD ist kostenlos f\u00fcr alle Betriebssysteme verf\u00fcgbar. In OpenSCAD wird nicht mit der Maus gezeichnet sondern es werden Texte geschrieben. Zum Beispiel cube(size, center)<\/em> erzeugt einen W\u00fcrfel mit der Kantenl\u00e4nge size<\/em>. Es ist wie bei einen Computerprogramm, man kann Variable definieren und mit ihnen die Zeichnung gestalten. Wenn etwas ge\u00e4ndert werden muss kann eine Variable ge\u00e4ndert werden und die gesamte Zeichnung passt sich an.<\/p>\n

Der Code f\u00fcr OpenSCAD<\/p>\n

\/\/ --- Grundmasse ---<\/span>
\nblech_dicke =<\/span> 1.5<\/span>;<\/span> \/\/ Materialst\u00e4rke (z.B. Alu \/ Stahl)<\/span>
\nabkantung_wand =<\/span> 20<\/span>;<\/span> \/\/ 20mm Wand-Abkantung nach unten<\/span>
\nschenkel_laenge =<\/span> 220<\/span>;<\/span> \/\/ Kantenl\u00e4nge an der Wand (an der X- und Y-Achse)<\/span>
\nloch_wand =<\/span> 4.5<\/span>;<\/span> \/\/ L\u00f6cher f\u00fcr Wandbefestigung (M4)<\/span>
\n
\n\/\/ --- Funkger\u00e4t-Masse &amp; H-Einschnitt ---<\/span>
\nfunk_breite =<\/span> 99<\/span>;<\/span> \/\/ Exakte Geh\u00e4usebreite des Mobilger\u00e4ts (in mm)<\/span>
\nfunk_hoehe_lasche =<\/span> 40<\/span>;<\/span> \/\/ H\u00f6he der hochgeklappten Seitenteile<\/span>
\nlochabstand_funk =<\/span> 36<\/span>;<\/span> \/\/ Abstand der Befestigungsl\u00f6cher am Funkger\u00e4t (Mitte-Mitte)<\/span>
\nloch_funk =<\/span> 5<\/span>;<\/span> \/\/ Lochdurchmesser am Funkger\u00e4t (z.B. M5)<\/span>
\npos_von_vorderkante =<\/span> 15<\/span>;<\/span> \/\/ Abstand der Laschen von der Vorderkante nach innen<\/span>
\n
\n$fn =<\/span> 40<\/span>;<\/span>
\n
\n\/\/ Hilfsparameter f\u00fcr das Laschen-Layout<\/span>
\nlaschen_laenge =<\/span> lochabstand_funk +<\/span> 30<\/span>;<\/span> \/\/ Gesamtl\u00e4nge der Biegelasche<\/span>
\n
\ndifference(<\/span>)<\/span> {<\/span>
\nunion(<\/span>)<\/span> {<\/span>
\n\/\/ 1. Dreieckige Grundplatte<\/span>
\nlinear_extrude(<\/span>height =<\/span> blech_dicke)<\/span> {<\/span>
\npolygon(<\/span>points=<\/span>[<\/span>
\n[<\/span>0<\/span>,<\/span> 0<\/span>]<\/span>,<\/span>
\n[<\/span>schenkel_laenge,<\/span> 0<\/span>]<\/span>,<\/span>
\n[<\/span>0<\/span>,<\/span> schenkel_laenge]<\/span>
\n]<\/span>)<\/span>;<\/span>
\n}<\/span>
\n
\n\/\/ 2. Wand-Abkantung Kante 1 (nach unten)<\/span>
\ntranslate(<\/span>[<\/span>0<\/span>,<\/span> 0<\/span>,<\/span> -<\/span>abkantung_wand +<\/span> blech_dicke]<\/span>)<\/span>
\ncube(<\/span>[<\/span>schenkel_laenge,<\/span> blech_dicke,<\/span> abkantung_wand]<\/span>)<\/span>;<\/span>
\n
\n\/\/ 3. Wand-Abkantung Kante 2 (nach unten)<\/span>
\ntranslate(<\/span>[<\/span>0<\/span>,<\/span> 0<\/span>,<\/span> -<\/span>abkantung_wand +<\/span> blech_dicke]<\/span>)<\/span>
\ncube(<\/span>[<\/span>blech_dicke,<\/span> schenkel_laenge,<\/span> abkantung_wand]<\/span>)<\/span>;<\/span>
\n
\n\/\/ 4. HOCHGEKLAPPTE LASCHEN (Aus dem H-Einschnitt)<\/span>
\n\/\/ Transformiert auf die Mitte der Vorderkante und um 45\u00b0 gedreht (90\u00b0 zur Vorderkante)<\/span>
\ntranslate(<\/span>[<\/span>schenkel_laenge\/<\/span>2<\/span>,<\/span> schenkel_laenge\/<\/span>2<\/span>,<\/span> 0<\/span>]<\/span>)<\/span>
\nrotate(<\/span>[<\/span>0<\/span>,<\/span> 0<\/span>,<\/span> 45<\/span>]<\/span>)<\/span> {<\/span>
\n
\n\/\/ Linke Lasche (nach oben gebogen)<\/span>
\ntranslate(<\/span>[<\/span>-<\/span>pos_von_vorderkante -<\/span> laschen_laenge,<\/span> funk_breite\/<\/span>2<\/span>,<\/span> blech_dicke]<\/span>)<\/span>
\ncube(<\/span>[<\/span>laschen_laenge,<\/span> blech_dicke,<\/span> funk_hoehe_lasche]<\/span>)<\/span>;<\/span>
\n
\n\/\/ Rechte Lasche (nach oben gebogen)<\/span>
\ntranslate(<\/span>[<\/span>-<\/span>pos_von_vorderkante -<\/span> laschen_laenge,<\/span> -<\/span>funk_breite\/<\/span>2<\/span> -<\/span> blech_dicke,<\/span> blech_dicke]<\/span>)<\/span>
\ncube(<\/span>[<\/span>laschen_laenge,<\/span> blech_dicke,<\/span> funk_hoehe_lasche]<\/span>)<\/span>;<\/span>
\n}<\/span>
\n}<\/span>
\n
\n\/\/ --- AUSSCHNITTE &amp; BOHRUNGEN ---<\/span>
\n
\n\/\/ A. Wandbohrungen (nach unten abgekantete Schenkel)<\/span>
\ntranslate(<\/span>[<\/span>25<\/span>,<\/span> blech_dicke +<\/span> 1<\/span>,<\/span> -<\/span>abkantung_wand\/<\/span>2<\/span>]<\/span>)<\/span> rotate(<\/span>[<\/span>90<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>]<\/span>)<\/span> cylinder(<\/span>d =<\/span> loch_wand,<\/span> h =<\/span> blech_dicke +<\/span> 2<\/span>)<\/span>;<\/span>
\ntranslate(<\/span>[<\/span>schenkel_laenge -<\/span> 25<\/span>,<\/span> blech_dicke +<\/span> 1<\/span>,<\/span> -<\/span>abkantung_wand\/<\/span>2<\/span>]<\/span>)<\/span> rotate(<\/span>[<\/span>90<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>]<\/span>)<\/span> cylinder(<\/span>d =<\/span> loch_wand,<\/span> h =<\/span> blech_dicke +<\/span> 2<\/span>)<\/span>;<\/span>
\ntranslate(<\/span>[<\/span>-<\/span>1<\/span>,<\/span> schenkel_laenge -<\/span> 25<\/span>,<\/span> -<\/span>abkantung_wand\/<\/span>2<\/span>]<\/span>)<\/span> rotate(<\/span>[<\/span>0<\/span>,<\/span> 90<\/span>,<\/span> 0<\/span>]<\/span>)<\/span> cylinder(<\/span>d =<\/span> loch_wand,<\/span> h =<\/span> blech_dicke +<\/span> 2<\/span>)<\/span>;<\/span>
\n
\n\/\/ B. Funkger\u00e4t-Befestigung &amp; H-Ausschnitt<\/span>
\ntranslate(<\/span>[<\/span>schenkel_laenge\/<\/span>2<\/span>,<\/span> schenkel_laenge\/<\/span>2<\/span>,<\/span> 0<\/span>]<\/span>)<\/span>
\nrotate(<\/span>[<\/span>0<\/span>,<\/span> 0<\/span>,<\/span> 45<\/span>]<\/span>)<\/span> {<\/span>
\n
\n\/\/ H-Ausschnitt im Boden (das freigewordene Fenster im Blech)<\/span>
\ntranslate(<\/span>[<\/span>-<\/span>pos_von_vorderkante -<\/span> laschen_laenge,<\/span> -<\/span>funk_breite\/<\/span>2<\/span>,<\/span> -<\/span>1<\/span>]<\/span>)<\/span>
\ncube(<\/span>[<\/span>laschen_laenge,<\/span> funk_breite,<\/span> blech_dicke +<\/span> 2<\/span>]<\/span>)<\/span>;<\/span>
\n
\n\/\/ L\u00f6cher in der LINKEN Lasche<\/span>
\ntranslate(<\/span>[<\/span>-<\/span>pos_von_vorderkante -<\/span> laschen_laenge +<\/span> 15<\/span>,<\/span> funk_breite\/<\/span>2<\/span> -<\/span> 1<\/span>,<\/span> funk_hoehe_lasche *<\/span> 0.6<\/span>]<\/span>)<\/span>
\nrotate(<\/span>[<\/span>-<\/span>90<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>]<\/span>)<\/span> cylinder(<\/span>d =<\/span> loch_funk,<\/span> h =<\/span> blech_dicke +<\/span> 3<\/span>)<\/span>;<\/span>
\ntranslate(<\/span>[<\/span>-<\/span>pos_von_vorderkante -<\/span> laschen_laenge +<\/span> 15<\/span> +<\/span> lochabstand_funk,<\/span> funk_breite\/<\/span>2<\/span> -<\/span> 1<\/span>,<\/span> funk_hoehe_lasche *<\/span> 0.6<\/span>]<\/span>)<\/span>
\nrotate(<\/span>[<\/span>-<\/span>90<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>]<\/span>)<\/span> cylinder(<\/span>d =<\/span> loch_funk,<\/span> h =<\/span> blech_dicke +<\/span> 3<\/span>)<\/span>;<\/span>
\n
\n\/\/ L\u00f6cher in der RECHTEN Lasche<\/span>
\ntranslate(<\/span>[<\/span>-<\/span>pos_von_vorderkante -<\/span> laschen_laenge +<\/span> 15<\/span>,<\/span> -<\/span>funk_breite\/<\/span>2<\/span> -<\/span> blech_dicke -<\/span> 1<\/span>,<\/span> funk_hoehe_lasche *<\/span> 0.6<\/span>]<\/span>)<\/span>
\nrotate(<\/span>[<\/span>-<\/span>90<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>]<\/span>)<\/span> cylinder(<\/span>d =<\/span> loch_funk,<\/span> h =<\/span> blech_dicke +<\/span> 3<\/span>)<\/span>;<\/span>
\ntranslate(<\/span>[<\/span>-<\/span>pos_von_vorderkante -<\/span> laschen_laenge +<\/span> 15<\/span> +<\/span> lochabstand_funk,<\/span> -<\/span>funk_breite\/<\/span>2<\/span> -<\/span> blech_dicke -<\/span> 1<\/span>,<\/span> funk_hoehe_lasche *<\/span> 0.6<\/span>]<\/span>)<\/span>
\nrotate(<\/span>[<\/span>-<\/span>90<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>]<\/span>)<\/span> cylinder(<\/span>d =<\/span> loch_funk,<\/span> h =<\/span> blech_dicke +<\/span> 3<\/span>)<\/span>;<\/span>
\n}<\/span>
\n}<\/span><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

Ich habe mich entschlossen mein kleines Funkger\u00e4t in mein Elektroauto einzubauen. Aber wohin ? So kam ich auf die Idee ein Blech anzufertigen das genau in den Himmel des Autos passt. weiterlesen<\/a><\/p>","protected":false},"author":1,"featured_media":162,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,1,3],"tags":[],"class_list":["post-155","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-afu","category-allgemein","category-software"],"_links":{"self":[{"href":"https:\/\/www.modellbau-yodi.de\/aax\/wp-json\/wp\/v2\/posts\/155","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.modellbau-yodi.de\/aax\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.modellbau-yodi.de\/aax\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.modellbau-yodi.de\/aax\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.modellbau-yodi.de\/aax\/wp-json\/wp\/v2\/comments?post=155"}],"version-history":[{"count":7,"href":"https:\/\/www.modellbau-yodi.de\/aax\/wp-json\/wp\/v2\/posts\/155\/revisions"}],"predecessor-version":[{"id":164,"href":"https:\/\/www.modellbau-yodi.de\/aax\/wp-json\/wp\/v2\/posts\/155\/revisions\/164"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.modellbau-yodi.de\/aax\/wp-json\/wp\/v2\/media\/162"}],"wp:attachment":[{"href":"https:\/\/www.modellbau-yodi.de\/aax\/wp-json\/wp\/v2\/media?parent=155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.modellbau-yodi.de\/aax\/wp-json\/wp\/v2\/categories?post=155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.modellbau-yodi.de\/aax\/wp-json\/wp\/v2\/tags?post=155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}