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Trial hole for transponder head

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Trial hole for transponder head

2 pictures on this page - scroll down to see the rest


TC20 hole test

TC20 hole test: 2009-09-19

Nikon Coolpix 8400

Test milling a hole for the TC20 head of the Trig TT21 transponder in an offcut of aluminium extrusion.


TC20 hole test

TC20 hole test: 2009-09-19

Nikon Coolpix 8400

TC20 transponder head temporarily mounted to check fit in the test hole milled in an offcut of aluminium extrusion. The hole at the right was the first try; I didn't get the rotary table correctly zeroed under the milling machine quill, so the hole is asymmetrical.

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