38" H&M Intruder twin to begin

[Jesse J]

I am also really curious of your idea. You have much more practicality guiding your design and I have seen your great work. I have a really ugly sketch here that I don't want to show anybody. I also need to keep the tunnel somewhat clear for battery placement options. If I have to go with permanently fixing the mounts..... then that's what I'll do. I like the two bands kind where the front and rear of the motor are held solid.

Hit me with your thoughts, and I will try to clean up my pencil disaster before showing you...

[Punisher 67]

Sorry for the late reply Jesse , weekends are fairly busy for me ( Family stuff )

I will be brutally honest with you Jesse....I have racked my brain on and off for the last day and a half on how to approach this and have come up with pretty much nothing other than the dual motor mount system ( your original idea ) with L-brackets bolted to the mount on both sides and bolted to the center channel on the boat . what worries me is the mount flexing because of no rear motor support . we have to come up with something there . I have finished my brotherinlaws $hit so I can concentrate on your project a 100% from here on in . I will be going into Edmonton today to pickup the 3/16 Aluminum for the mount . starting tomorrow I will start drawing it onto a grid , I have no CAD experiance but do know the lazy cam program that comes with my Mach3 milling program does infact use DFX files so that hopefully will be an asset . the Adobe file Jesse is going to be a huge help thank you for that . Just bear with me......I wanted to get all projects out of my way before I tackled this head on

As far a your pencil disasters all ideas are welcome.................

[Punisher 67]

I have started on the rough grid design and the G-code co-ordinates less measurements / compensation for toolpath . If this shape is OK with you I will proceed with the rest and hopefully have the front mount cut by Wednesday . I could not get 3/16 Alum Jesse so the next size up is a 1/4 . I will do what I can to make it as light as possible . Motor mount will be pocketed out .125 inch and with 8 mount holes for motor

Feel free to alter whatever you want or make additions , Still brainstorming on the rear supports also

[Jesse J]

will check back in the am, family here too... thanks peter, we gonna rock this boat, eh?

[ksm2001]

One Cool Cat Jesse , speaking from seeing Peters workmanship first hand I can say it will be nothing short of perfection. Like the strut choice.

Ken

[Jesse J]

Thanks Ken, this will definitely be the flagship of the fleet!

Peter, I have sketched up something moderately comprehensible... I have abandoned the cross-tunnel idea and am thinking now two individual mirror-image mounts that bolt to the base of the sponson. The front (aftward) of the motor would bolt into the mount, and the rear would clamp on like the pic I have included. the total base would be 5" to allow adequate dispersal of any forces and would have a groove to allow the cooling can to just touch the floor of the sponson. We might have to chat on the phone for final details, but I think this is a good starting point.

I will email you a high-res pdf for your viewing pleasure. I didn't get whether a dxf would help or not, nothing is referenced in 3D, but it might help you get your code???

[Punisher 67]

Jesse I have never worked with a DFX but we all gotto start some where , please do send them a program within my main milling program uses them and could be a great help in generating code and I have been itching to get my hands wet there . Do the squares = 1/4 inch . You know I am pretty convinced that I had the cross channel figures out . both front and back mount would be identical for the exception of the front being pocket out with bolt holes and the rear having just a hole to support the rear of the motor . front and back would be joined by two 1/4 square frame connectors and bolted to the top platform ( 110 mm wide area ) at that point the mounts would go up and create a bridge over the batteries . since the mount are 1/4 inch thick the bridge area could be made thin (1/4 to 5/16) and still stay rigid . I am still going to draw it out and you can see what you think . If your game so am I.........................................

Jesse I need to know the hight x width of your batteries to see if this is even possible . one more item.......on your first PDF you have the motor spacing from shaft to shaft a 7.5" . in the second PDF you have it at 11.115".........................

[Jesse J]

Right, width is 7.326" (I gave you the x position in my drafting program)

Batteries, I can give you dims of my 5S packs, but don't have the 6S packs I will try. I can look up dimensions of those and report back. Need to see your drawing of the "bridge" could be cool. I did like the idea of binding up both motors together.

i do want the motors angled down at 6 deg toward the stern.

sent dxf. let me know if you can open/use them

[Punisher 67]

Sorry Jesse couldn't do much with the DFX file , that is one area that I need a deep education

My idea........the bridge mount

[Jesse J]

Might have to stick with individual mounts, batts are 4" wide by nearly 2.5" high (either 5S or 6S packs). Don't want to limit the placement with the bridge, however elegant it may be.

Did you not like the sponson floor mount idea? We could mount the motor mounts on the angle between the tunnel floor and the sponson vertical... could be the cleanest. What do you think? This would keep the floor clear.

[Punisher 67]

I have writen the code for your motor mounts front and rear and will cut them out either Tues or Wed . will brainstorm on the floor base once those are cut out

[Jesse J]

That's awesome, Peter. I can't wait to see them. I am sure they will be beautiful!

I am probably going to reinforce the motor area with CF and if it comes down to it, we could just glue the mounts into the sponsons. A little less elegant, but if there is a CF mat down, it should be pretty sturdy. I have always liked the idea of removable, not necessary, just convenient.

I think the back (toward the bow) should have a strap so the motor can slide in (aftward) and then drop into the back mount cradle, close the strap and secure. Sound good?

[Punisher 67]

As far as floor mount thats OK with me . anyway you look at this it has its challenges . Its been a long time since I have racked my brain on how to negotiate a mounting system . A strap system should work OK but I am also brainstorming on something easier if I come up with a alternative I will post

Your drafting skills are awesome , geez I gotto learn to do that with a program

We could mount the motor mounts on the angle between the tunnel floor and the sponson vertical... could be the cleanest

Sorry to ask a stupid question Jesse but could you clarify this exactly with a rough picture . I think I know what you mean

...............................

[Jesse J]

I was wondering if I was describing poorly... here is pic. Only problem here is measurements would truly have to be exact. We can do that, can always absorb slight slop with stuffing tube alignment, to be done with motors in place obviously.

[Punisher 67]

Bingo...........this one by far shows the most promise , now what I need is a clean picture of both mounts without the other behind it on a 1/4 inch grid . we have a copier at work that will scale it exactly for me to start writing code . Jesse wouldn't it be easier to just slide the rear mount onto the motor and then bolt it to the hull or do you figure a strap mount is still the way to go

Without your expert drafting skills we would be screwed..................