Wouxun KG-UV3D: Improved Knob Index

After Raj thoroughly shamed me for slobbering white glop on the KG-UV3D’s volume / power knob, I hereby repent…

Clamp a cutoff chunk of 3/16 =0.1875 inch diameter brass tubing in the lathe and file down one side to put the flat 0.150 inch from the far side, so that the knob is a tight slip fit. If you happen to have some solid rod, that would work just as well. In this case, the file pushed the paper-thin brass remnant into the tubing and I didn’t bother to clean it out:

KG-UV3D knob with fixture

KG-UV3D knob with fixture

Clean the white glop off the knob, jam the knob on the fixture, clamp the fixture in the Sherline’s vise, use laser targeting to center the spindle on the notch adjacent to the minuscule pip on the knob:

Laser aligning to knob feature

Laser aligning to knob feature

Drill a 2 mm recess that en passant obliterates the pip:

Drilling index recess

Drilling index recess

Fill it with some light gray paint that just happens to be on the shelf:

Knob with filled index mark

Knob with filled index mark

And, by gosh, it really does dress up the radio! [grin]

Wouxun KG-UV3D with improved knob

Wouxun KG-UV3D with improved knob

While I had the Sherline set up, I did the knob for the other radio, too.

Thanks, Raj… I needed that!


  1. #1 by Raj on 2012-09-13 - 01:12

    Welcome Ed, looks great now! I used to use my daughters crayons to fill the hole but it tends to accumulate dirt.

    To hold the knob I have used an old discarded pot shaft after liberating it from its stationary bits.

    • #2 by Ed on 2012-09-13 - 07:02

      an old discarded pot shaft

      Well, after you get me started, you know what to expect. [grin]

      The only question is whether I should save that snippet of tubing in a neatly marked ziplock bag tucked in with the special wrenches, toss it back into the tubing stockpile, or drop it in the brass recycling bucket. Decisions, decisions…

  2. #3 by Robert on 2012-09-13 - 18:18

    recycle that dawg and you will need it a week later… :D

    Hey Ed, what was that appliance repair site you use so much?
    Trying to help Dad fix Mom’s dishwasher, (just started, too)

    Gonna search now…

    • #4 by Ed on 2012-09-13 - 20:52

      that appliance repair site

      RepairClinic.com has provided a bunch of parts around here…