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research:geofon_xlr [2025/07/02 16:33] – created mrkvaresearch:geofon_xlr [2025/08/04 12:59] (current) mrkva
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 ====== Geofón XLR mod ====== ====== Geofón XLR mod ======
-One of our customers approached us with an interesting idea—they wanted to create a "wireless" version of Geofón using small XLR wireless transmitter. So I designed a special modified version of the Geofón case top to include [[https://www.neutrik.com/en/product/nc3mpr-hd|Neutrik heavy-duty XLR connector, NC3MPR-HD]].+One of our customers approached us with an interesting idea—they wanted to create a "wireless" version of Geofón using small XLR wireless transmitter. So I designed a special modified version of the Geofón case top to include heavy duty XLR connector. 
  
-I made the STL file available so you can 3D print and make your own modified Geofón as wellHave fun!+===== Parts & tools ===== 
 +  * [[https://github.com/LOM-instruments/Geofon-accessories/blob/main/geofon_xlr.stl|3D printed Geofon_XLR top]] 
 +  * [[https://www.neutrik.com/en/product/nc3mpr-hd|Neutrik heavy-duty XLR connector, NC3MPR-HD]] 
 +  * DIN 7991 M4 x 8 mm bolt 
 +  * ~10 cm of thin, stranded single core wire 
 +  * soldering iron and solder 
 +  * M4 tap drill ([[https://wiha.com/int/en/tools/bits/wiha-drill-bits/combination-drill-bits/combination-drill-bit/27898|for example]])
  
-{{:undefined:geofon_xlr.jpeg?nolink&600|}}+ 
 +===== Instructions ===== 
 +  - Print the provided STL file. Tap the two screw holes on the side: the top hole uses an M4 x 8 mm bolt, and the bottom hole uses the original bolt from your Geofón. 
 +  - Prepare two wires of equal length and solder them to pins 2 and 3 of the XLR connector. 
 +  - Attach the XLR connector to the printed body and secure it using the M4 x 8 mm bolt from the side. 
 +  - Solder the wires to the element: the pin marked with a dot should be connected to pin 2 on the XLR connector. 
 +  - Insert the element into the casing and secure it from the side, as you would with a regular Geofón. Finally, screw on the bottom part of the casing using the original Geofón’s component. 
 + 
 +{{:research:xlr_connector.jpeg?nolink&400 |}}{{:undefined:geofon_xlr.jpeg?nolink&600|}}