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View Full Version : making a skeg / rudder /fin for my minn-kota trolling motor part 1



dragonfly
03-22-2014, 02:49 PM
I made a aluminum skeg for my new st-80 I-pilot today I have made a few SS ones but after hearing about my buddy raising up forgetting it was there and cutting his head I decided to make one a little more forgiving this is how I made mine first I used 4'' schd. 40 aluminum pipe not tube (pipe is measured on the inside. tube is measured on the outside ) and trued the ends on the lathe
http://i1364.photobucket.com/albums/r740/shawnlsullivan/154fdeb9-b567-4b47-9671-947a802b63f3_zps6890eded.jpg (http://s1364.photobucket.com/user/shawnlsullivan/media/154fdeb9-b567-4b47-9671-947a802b63f3_zps6890eded.jpg.html)
now turned the end bevels and the hose clamp grooves.
http://i1364.photobucket.com/albums/r740/shawnlsullivan/bfa3202c-b404-4d23-9d23-1b9949acf973_zps88b12d57.jpg (http://s1364.photobucket.com/user/shawnlsullivan/media/bfa3202c-b404-4d23-9d23-1b9949acf973_zps88b12d57.jpg.html)
now over to the mill. set up the DRO and mill the center groove for the skeg.
http://i1364.photobucket.com/albums/r740/shawnlsullivan/f94c881f-2aed-4fac-86ab-d48bd06b569a_zps0d6e130a.jpg (http://s1364.photobucket.com/user/shawnlsullivan/media/f94c881f-2aed-4fac-86ab-d48bd06b569a_zps0d6e130a.jpg.html)
along with a 5/16 groove that will straddle the minn-kota skeg to help it from rotating.and start the parting process.
http://i1364.photobucket.com/albums/r740/shawnlsullivan/ff07d407-b57f-4213-a518-c1b83795f1e0_zpsa510f45b.jpg (http://s1364.photobucket.com/user/shawnlsullivan/media/ff07d407-b57f-4213-a518-c1b83795f1e0_zpsa510f45b.jpg.html)
this is it separated
http://i1364.photobucket.com/albums/r740/shawnlsullivan/2479ece4-d9ba-4e18-8c08-0b423959b997_zps4e184388.jpg (http://s1364.photobucket.com/user/shawnlsullivan/media/2479ece4-d9ba-4e18-8c08-0b423959b997_zps4e184388.jpg.html)
now I need to back bevel the skeg groove to fit the skeg on the minn-kota because it is flaired
http://i1364.photobucket.com/albums/r740/shawnlsullivan/b87b1fed-d6e8-4513-8cf6-c0cc374553a4_zps0a17720b.jpg (http://s1364.photobucket.com/user/shawnlsullivan/media/b87b1fed-d6e8-4513-8cf6-c0cc374553a4_zps0a17720b.jpg.html)
while it was milling I ruff cut the new skeg and test fit and marked out for the hose clamp grooves.
http://i1364.photobucket.com/albums/r740/shawnlsullivan/0b23ce22-ff64-41b2-b84f-c63768789490_zps45877ab3.jpg (http://s1364.photobucket.com/user/shawnlsullivan/media/0b23ce22-ff64-41b2-b84f-c63768789490_zps45877ab3.jpg.html)
cutting the hose clamp grooves
http://i1364.photobucket.com/albums/r740/shawnlsullivan/eadd1366-ed82-4ecd-b4b9-663830241c42_zpsf5eb4157.jpg (http://s1364.photobucket.com/user/shawnlsullivan/media/eadd1366-ed82-4ecd-b4b9-663830241c42_zpsf5eb4157.jpg.html)
now to part 2