A diffrent motor mount idea for mono !

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  • rearwheelin
    Fast Electric Addict!
    • Oct 2008
    • 1941

    #1

    A diffrent motor mount idea for mono !

    This is my hand drawn sketch of a mount style that I will be doing in a Rico 31'' soon. The side plates will be forward of the motor plate and rear support will be focused to the transom for better strength and balance ( theorey ). My goal is to minimize stress at the V and transfer some to the transom were the boat is strongest and also to give a bit more finger room when screwing in four bolts into the motor.
    Attached Files
    "Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
    --Albert Einstein
  • Taylor
    Senior Member
    • Dec 2010
    • 106

    #2
    good logic if you get one setup let me know what materials u use and i might try one on for size in my delta force 35 i havent found a mount yet

    Comment

    • rearwheelin
      Fast Electric Addict!
      • Oct 2008
      • 1941

      #3
      On the pic, its hard to read ...... 2-2.5mm carbon plate for motor plate and side plates , 6mm or 1/4'' square aluminum rod for binding motor and side plates ( must drill and tap 4 holes on each side.... i think.....i am going with 4mm ) , Stainless tubing with 4mm lock nuts epoxied inside to run from upper part of motor plate to transom( cut and bend to desired place on transom then epoxy in 4mm nuts).......
      "Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
      --Albert Einstein

      Comment

      • rearwheelin
        Fast Electric Addict!
        • Oct 2008
        • 1941

        #4
        Originally posted by rearwheelin
        On the pic, its hard to read ...... 2-2.5mm carbon plate for motor plate and side plates , 6mm or 1/4'' square aluminum rod for binding motor and side plates ( must drill and tap 4 holes on each side.... i think.....i am going with 4mm ) , Stainless tubing with 4mm lock nuts epoxied inside to run from upper part of motor plate to transom( cut and bend to desired place on transom then epoxy in 4mm nuts).......
        O.K. , did more home work this time I broke out the micrometer. I will be using
        8mm solid aluminum square rod and 10mm by 1mm titanium tubing I found here metricmetal.com/ With titanium tubing now I will feel comfortable with only a single link to the transom and a big wieght saving over stainless. I also am reinforcing transom with 1mm carbon fiber. Also at Parker Steel Co. I found 1mm titanium cold rolled sheet to make my own medium sized turn fins.
        "Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
        --Albert Einstein

        Comment

        • rearwheelin
          Fast Electric Addict!
          • Oct 2008
          • 1941

          #5
          Originally posted by Taylor
          good logic if you get one setup let me know what materials u use and i might try one on for size in my delta force 35 i havent found a mount yet
          Depending on how soon you need a mount I will be willing to make u one . It might take a fair bit of time though. I am going to mount mine close to transom . I think all I need is a measurment of your V ( a traced actual shap of your transom) and u would need to shade on your cut out the areas whare hardware is mounted so I could bend the support tubing correctly.
          "Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
          --Albert Einstein

          Comment

          • rearwheelin
            Fast Electric Addict!
            • Oct 2008
            • 1941

            #6
            Originally posted by rearwheelin
            Depending on how soon you need a mount I will be willing to make u one . It might take a fair bit of time though. I am going to mount mine close to transom . I think all I need is a measurment of your V ( a traced actual shap of your transom) and u would need to shade on your cut out the areas whare hardware is mounted so I could bend the support tubing correctly.
            Taylor , I seen a pic of your DF 35 , it has strakes . My mount isn't really intended for a hull with strakes.....
            "Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
            --Albert Einstein

            Comment

            • Taylor
              Senior Member
              • Dec 2010
              • 106

              #7
              ok

              Comment

              • CornelP
                Senior Member
                • May 2009
                • 745

                #8
                You can also try to spread the stress on a larger area on the bottom. The mount I did for this mono can be actually taken out quite easy, just 3 bolts, vertical and easy to access.
                Attached Files

                Comment

                • rearwheelin
                  Fast Electric Addict!
                  • Oct 2008
                  • 1941

                  #9
                  Originally posted by CornelP
                  You can also try to spread the stress on a larger area on the bottom. The mount I did for this mono can be actually taken out quite easy, just 3 bolts, vertical and easy to access.
                  Allways like to see diffrent styles. Like it ! The matching carbon cooling can too !
                  "Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
                  --Albert Einstein

                  Comment

                  • rearwheelin
                    Fast Electric Addict!
                    • Oct 2008
                    • 1941

                    #10
                    Originally posted by Taylor
                    ok
                    Might I recoment a simple carbon fiber plate the width of your rails cut out to form with the V bottom but not touching the fiberglass because that could cause stress cracks on the bottom. I like this type of mount because almost every motor you would want to run has 25mm mounting holes and depending on how long of a motor u use a support at the end seems to be the trend on anything longer than a 1515 and thats easy to do.......from motor to motor. I would bolt the side plates to the rails and then motor plate..............................never mind , just buy the mount that everyone else seems to use , its a no brainer.....for me.......lol Figure out what motor then buy or build a mount for that motor. I like to build my own and make them expandable to fit most motors.
                    "Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
                    --Albert Einstein

                    Comment

                    • rearwheelin
                      Fast Electric Addict!
                      • Oct 2008
                      • 1941

                      #11
                      Originally posted by rearwheelin
                      O.K. , did more home work this time I broke out the micrometer. I will be using
                      8mm solid aluminum square rod and 10mm by 1mm titanium tubing I found here metricmetal.com/ With titanium tubing now I will feel comfortable with only a single link to the transom and a big wieght saving over stainless. I also am reinforcing transom with 1mm carbon fiber. Also at Parker Steel Co. I found 1mm titanium cold rolled sheet to make my own medium sized turn fins.
                      So I gave Parker Metals a call today and they only sell buisness to buisness
                      "Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
                      --Albert Einstein

                      Comment

                      • JMSCARD
                        Fast Electric Addict!
                        • Mar 2010
                        • 3444

                        #12
                        Originally posted by rearwheelin
                        So I gave Parker Metals a call today and they only sell buisness to buisness
                        Well then, thats easy Randy... start a business!

                        Hear let me help....

                        RDR Racing
                        Randy Duke Rearwheelin Racing :)

                        Comment

                        • rearwheelin
                          Fast Electric Addict!
                          • Oct 2008
                          • 1941

                          #13
                          Originally posted by JMSCARD
                          Well then, thats easy Randy... start a business!

                          Hear let me help....

                          RDR Racing
                          Randy Duke Rearwheelin Racing :)
                          Will do ! .............12 by 12'' by .040 sheet of titanium to make turn fins is $70.00!!!!!!!!!!!!!! I have a $600.00 hand sheer to cut it up for turn fins but I dont need any that big ! There anyone out there want some turn fins made out of titanium, slightly thicker than 1mm . They should ad speed in the turns !!!!!!!!!???????????? Donate to the R&D cause !!!!!
                          "Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
                          --Albert Einstein

                          Comment

                          • rearwheelin
                            Fast Electric Addict!
                            • Oct 2008
                            • 1941

                            #14
                            Last ditch effort on my metric spec. speacialty metal

                            Just got ahold of a long time friend who happens to be a foreman at a reputable machine shop. He will be checking pricing and hooking it up ! Titanium turn fins will be 1mm thick to cut the water with minimum resistance and max ridgidity n strength ! I will have lots of xtra material if anyone would like to give it a shot latter on..........I will be mounting them with 25mm by 25mm by 4mm thick stainless channel and mount will be adjustable for angle and degree of fin. Hand sharpened with a sharpening stone.
                            "Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
                            --Albert Einstein

                            Comment

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