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  • Lucas toggle switch knockout?

    Is there a knockout for making toggle switch holes? I know just a drilled hole will do. Didn’t find anything online . Click image for larger version

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  • #2
    I just checked McMaster. They have manual style knockout punches but I didn't see one with that hole shape. I'm sure someone here knows what electrical source has that shape.
    ---------------------------------------------------
    '73 S3 88"
    '87 110 garden shed

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    • #3
      I spoke to a local guy who owns a fabrication shop and he said he can probably do it with a CNC machine. However- it seems like there should be a knockout that's available. The guy across the road from my shop is a commercial electrician- I'll ask him tomorrow.....

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      • #4
        D hole punches are available from various places (amazon link below), but they're not cheap. I just looked them up, here is a half inch one (I didn't try to find the Lucas size): https://www.amazon.com/Greenlee-60077-Punch-Unit-2-Inch/dp/B000ARDH6W

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        • #5
          OUCH !!
          Steve

          1964 Series IIa In progress
          1968 S IIa (Sold)
          1972 S III (Sold)
          1996 Discovery SE-7 (Sold)
          1985 J**p CJ-7 (For Sale)

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          • #6
            Check McMaster Carr. About $50.

            http://www.mcmaster.com/d-shape-knockout-punches/


            Colin
            A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.

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            • #7
              I think you read that wrong, $57 for the hydraulic adapter, $319 for the punch!!!
              gene
              1960 109 w/ 200TDI
              rebuild blog; http://poppageno.blogspot.com/

              You don't see faith healers working in hospitals for the same reason you don't see psychics winning the lottery.

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              • #8
                Yikes. Those prices. Looks like I will go the CNC route.

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                • #9
                  Originally posted by loose gravel View Post
                  I think you read that wrong, $57 for the hydraulic adapter, $319 for the punch!!!
                  Yup, I'm used to looking to the far right for prices on that website. Oh well, I tried.


                  Colin
                  A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.

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                  • #10
                    If you're only doing one or two holes, mark it with a scribe, drill out what you can with an undersized drill, and use a small hand file to finish it. 15 minutes for a hole, at most. You don't get to buy neat tools, but you can do that for something else.
                    ---------------------------------------------------
                    '73 S3 88"
                    '87 110 garden shed

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                    • #11
                      Originally posted by hackneyed1 View Post
                      D hole punches are available from various places (amazon link below), but they're not cheap. I just looked them up, here is a half inch one (I didn't try to find the Lucas size): https://www.amazon.com/Greenlee-60077-Punch-Unit-2-Inch/dp/B000ARDH6W
                      Man Alive! I never thought you could get gold hard enough to make a punch!
                      Today is a good day to die........
                      .......But tomorrow would be better...

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                      • #12
                        Here’s the finished product. I used an extra wiper motor cover for four auxiliary Lucas switches and two 2” gauges. For the “D” style profile a local machine shop used an end mill. Click image for larger version

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                        • #13
                          One close up Click image for larger version

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                          • #14
                            Well that came out really nice.

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                            • #15
                              Really nice.

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