Enclosure for the Norcal BLT Tuner (and others)

thingiverse

NOTE: Bill, WB9BBC, experienced problems with the original STL file I provided, likely due to problems in the original geometric operations. He fixed this and provided a new STL, available as blt-tuner-enclosure-repaired-WB9BBC.stl. I did not try it myself yet, but recommend to take his version for printing. This is a snap-in enclosure for the Norcal Balanced Line Tuner (BLT), the BLT Plus, other derivatives, and generally any Z-Match tuner or Fuchs matchbox, or other matching device for antennas in Ham Radio. For schematics of respective antenna tuners, see here: http://www.qrpkits.com/blt_plus.htmlhttp://www.norcalqrp.org/norcal_blt.htmhttp://www.n5ese.com/blt.htm The enclosure has holes for the following parts: 2 x BNC 2 x Banana Plugs 1 Toggle Switch (typically for switching between symmetrical and asymmetrical antennas, because that needs not be changed during the tuning procedure in most cases and can thus be at the rear side of the enclosure) 2 Slide Switches (typically one for tune vs. operate and one for high Z vs. low Z) 1 5 mm indicator LED 2 variable capacitors. Enjoy and hope to meet you on the air! 73s Martin, DK3IT Print Settings Printer: Sharebot NG Rafts: Doesn't Matter Supports: No Resolution: 0.3 mm Infill: 15% rectilinear How I Designed This Viacad 2D/3D This was actually a first exercise in 3D design and printing for other projects.