Electric Duc Build

General Discussion about large electric scooters and motorcycles and other things with no pedals.
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stueveone   10 µW

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Electric Duc Build

Post by stueveone » Nov 27 2017 7:47pm

Hi gang,

Just got started on my next build: a Ducati 999 Cafe Racer.Here is what I am shooting for:

Motor - Motenergy Me0913 (for now)
Controller - Sevcon Size 4 (for now, looking at Zeva possibly)
Batteries - Home brew with 18650's
Hp - 40 (for now)
Capacity - 10kWh
Range 80 (eventually)

Picked up the frame a few weeks ago. Designing a cable actuated hall effect throttle converter now and then it's on the motor mount and battery box.

Back to work,
Stueve
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Rube   100 W

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Location: Brisbane, Australia

Re: Electric Duc Build

Post by Rube » Nov 28 2017 4:07am

Super cool concept, would you mind taking a picture of the rear shock linkage? SamD has some pretty handy operated cable throttle boxes, not sure if hey use a hall sensor. Can be found in the for sale section.

Scottydog   100 W

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Joined: Oct 26 2013 10:45am

Re: Electric Duc Build

Post by Scottydog » Nov 28 2017 8:47am

nice chassis for it!! 8)

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skeetab5780   10 MW

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Re: Electric Duc Build

Post by skeetab5780 » Nov 28 2017 9:00am

really nice frame for conversion! GL

Scottydog   100 W

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Re: Electric Duc Build

Post by Scottydog » Nov 28 2017 11:24am

That was the "ugly" Duc model, much nicer with it's clothes off! A café version will look very sweet!

SlowCo   10 kW

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Re: Electric Duc Build

Post by SlowCo » Nov 28 2017 2:37pm

Looking forward to following your project. Please update with photo's regularly... :wink:

stueveone   10 µW

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Re: Electric Duc Build

Post by stueveone » Nov 28 2017 6:47pm

Thanks for the feedback people!

Damn! Wasn't aware of SamD's converter. And at $30 you can't go wrong! However, I'm stubborn and still might finish up my own...

Doing some motor mockups right now (former cb750 mount shown). There are some interesting offsets I'll have to navigate. The Ducati motor is a stressed member, so whatever the motor mount looks like I'll have to make sure it's up to the task!

And here is your photo of the linkage Rube. Let me know if that works...

-s
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jonescg   1 GW

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Location: Perth, Western Australia

Re: Electric Duc Build

Post by jonescg » Nov 28 2017 7:33pm

Very nice!

Looking forward to following this build!

Chris

stueveone   10 µW

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Re: Electric Duc Build

Post by stueveone » Jan 28 2018 8:57pm

Hi all,

Ugh... Holidays etc. Haven't had much time to work in the garage let alone post. That said, here are some updates:

Doing some battery/motor mount mockups (see photos). I wasn't happy with any of the directions I was mulling over. The stressed member relationship of the battery/motor mount is the main culprit. Plus navigating the swing arm to frame mount offset is a bit gnarly. So, I've decided to go down another, way crazier path (see CAD).

One of the reasons I was drawn to this frame style was the thought of a battery module hanging from the trellis frame where there was a bit of negative space showing between the bottom of the faux-gas tank and top of the battery module. By keeping the motor in the chain line (as seen in the first photos), this doesn't really give me much opportunity to work with this design. So, I've been playing with other ideas.

Simply moving the motor up doesn't work with the offsets and chain line, however mirroring the motor 180 and moving it up does. There is now a jackshaft that comes out closer to the swing arm and will use a series of timing belts to allow for far greater gearing flexibility. And everything is lining up pretty well. Now batteries will inhabit the space where the motor once was and I'll be able to accomplish the hanging trellis design direction! ...in theory anyways.

Next steps are to detail out the CAD and to then do a wood/plastic CNC'd mock up to check my geometry before going back in and stylizing the sucker so that it doesn't look so much like a computer tower!


-s
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boars   100 mW

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Location: Brisbane Australia

Re: Electric Duc Build

Post by boars » Feb 12 2018 9:06am

Gorgeous frame for it - should make for some amusing conversations with ICE/Duc riders.

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