I did mine with a 2" holesaw, completely from the outside and was done
in minutes.
Bill Bina
On 12/10/2015 3:27 PM, William Walker via CnC-List wrote:
Eric,
Do it. Missed seeing you this summer.
Bill Walker
Evening Star
Sent from AOL Mobile Mail
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On Thursday, December 10, 2015 Eric Frank via CnC-List
<cnc-list@cnc-list.com> wrote:
A question about removing a depth transducer to install the new one.
Based on earlier input from the list, I have used a 2 inch hole saw
from the top. Fortunately the diameter of the old transducer is just
shy of 2 in and the new one requires a 2 in hole. So the body of the
old transducer just fits inside the hole saw, keeping it lined up with
little drag (not cutting much of the plastic body of the transducer).
When the inside top of the hole saw reached the top of the transducer,
I then cut off the top half of the transducer so I could proceed
drilling down. Now the hole saw just touches the hull, but the inside
top of the hole saw hits the top of the transducer, so I will need to
saw off the next section of the transducer to proceed further. With my
tools, not so easy to saw off the transducer just above the hull.
Question: what about drilling down thru the transducer with a regular
drill bit, using the pilot hole made by the drill bit in the hole saw,
and then, using that hole as a guide, use the hole saw to proceed up
from the outside of the hull. This would avoid cutting thru more of
the transducer (a pain), and the pilot hole should guide the hole saw.
Sound OK, or better to continue from the top? Thanks as always for
your input. Eric Frank Cat's Paw C&C 35 Mk II Mattapoisett, MA
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