The first and BEST Qulbix Raptor mid-drive build!

Discussions related to motors other than hub motors.
This includes R/C motors, botttom bracket, roller and geared drives.
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by recumpence » Nov 08 2016 2:27pm

McKitterick wrote:Matt, that is such crazy-gorgeous-wild engineering and design - kudos to you! Looks great and like it'll be a blast to ride.

I have a question for a problem I just had with mine that maybe you've already figured out. Seems like you're running power from the motors through your reduction setup directly to the left-rear gear, while retaining a derailleur setup on the right side for pedaling under your own power. I've just installed the 6000-watt kit from Tangent on a traditional downhill bike. On its maiden voyage, when I reached half-throttle, the motor ripped the chain right off the gears, nearly taking my leg off: https://endless-sphere.com/forums/viewtopic.php?t=84683

I'm thinking of swapping over to a belt drive, but your comment that you've never dropped a chain makes me reconsider. With a single-side drivetrain like mine, do you recommend sticking with a chain (but going with the thicker one you use and maybe special gears?)? Have you tried belt drives and compared for high-power applications like this?

Thanks!
Chris
Derailer systems have a finite power limit before the chain skips. That is why run left side drive. For high power, left side single ratio drive is the way to go.

I am not a fan of belts for high torque, low RPM use. Chains are stronger for a given width (generally speaking). Belts are best for high RPM, low torque applications such as the motor to jackshaft.

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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by ElectricGod » Nov 11 2016 12:14pm

Have you taken the bike out for a ride yet. Do you have any idea what your top speed is or how fast it is?
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by recumpence » Nov 13 2016 10:00am

Sorry for the late reply.

Nope, the bike is not wired yet. I have been doing a bunch of preparation stuff. Here is the situation;

The motors in the pictures are 6 turn wye 3220s. These are not the motors for this bike. The motors it will receive are 3 turn. Those 3 turn motors are in other projects (my winch is one of them). So, I needed to remove the 3 turn motors from the other projects, then remove these 6 turn motors from the Raptor. Then I needed to convert the 6 turn wye motors into delta termination (time consuming pain in the butt) and install those motors into their respective locations. After that I need to prep the 3 turn motors for this twin drive. All that needed to be done before this build can move forward. Also, once I took the winch apart to extract the 3 turn motor for this bike, I took that opportunity to do some important work on the winch. On top of all that, I have a substancial OEM project build I have been in negotiations regarding. That took a bit of my time. That OEM project also required reorganizing my entire shop.

So, yes this bike is still progressing. But, I have alot on my plate that is nothing to post pictures of, but sure does take up time. :D

Matt
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by recumpence » Nov 16 2016 5:46pm

Update:

I finally have something to show.

The bike is mechanically finished. Now I have a huge amount of wiring to do. Today I finished the pedalling components, modified the 3 turn Wye motors, installed them and finished the remaining drive unit details. Though the electric system is not running yet, I was finally able to pedal the bike around. I can tell you it rides really well. It is stable and very nimble. Compared to my Motoped, this thing is petite. The Motoped is very much a motorcycle. This is very much a bicycle in the way it feels and rides. It is far narrower, shorter, and the Q-factor is drastically narrower. It just feels better. It will, also, be about 20 pounds lighter than the Motoped while having 20% more battery capacity.

You can see I spaced the pedal sprocket 1 inch over toward the frame. This was done to compensate for the wider bottom bracket and put the chain in the proper alignment. I thought this would be a weak setup. But, no matter how hard I pedal, it stays straight and true.

Oh, I also modified the lower carbon fiber housing to fit around the cooling fans. I will take a few pictures of that when I have an opportunity.

Matt
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by Ham » Nov 16 2016 6:11pm

Looking gooooood.

How do you handle water with the motors being so exposed?
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by boisrondevens » Nov 16 2016 6:21pm

Woowww :lol:
Nice work!

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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by Daim11 » Nov 16 2016 6:23pm

That is the finest two-wheeled electrified beauty I have ever laid eyes on!

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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by Sean9002 » Nov 16 2016 6:31pm

That bike instills both fear, and arousal in me!! :twisted:
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by recumpence » Nov 16 2016 7:07pm

Ham wrote:Looking gooooood.

How do you handle water with the motors being so exposed?
I don't ride in water. However, I do ride in snow. I have a carbon fiber housing that goes under the drive unit for snow riding. There are pictures of it on a previous page.

Matt
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by ElectricGod » Nov 16 2016 7:53pm

This bike is stunning. It looks well put together. I like the way the top motor sits in those slots so it acts like a belt tensioner.
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by MattyCiii » Nov 16 2016 9:43pm

Matt-

Those toothed idlers on the electric drive side... did you make or are they off-the-shelf?
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by recumpence » Nov 16 2016 10:23pm

MattyCiii wrote:Matt-

Those toothed idlers on the electric drive side... did you make or are they off-the-shelf?
I had those made. They were $50 each. :shock:

Matt
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by recumpence » Nov 19 2016 11:16am

Here is a picture of the lower drive unit cover/housing modified for cooling fan clearance.

Matt
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by izeman » Nov 19 2016 11:28am

you seem to like the steam punk look. all those rivets :). i'd use black one to mask them.

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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by Ham » Nov 19 2016 11:49am

Looks great. I fear the UK mud would find it's way in there and spawn all sorts of Gremlins!
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by recumpence » Nov 19 2016 5:30pm

Ham wrote:Looks great. I fear the UK mud would find it's way in there and spawn all sorts of Gremlins!
I would never ride in the mud. Way too difficult to clean off.

Matt
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by recumpence » Nov 19 2016 6:19pm

izeman wrote:you seem to like the steam punk look. all those rivets :). i'd use black one to mask them.
I could not find black rivets locally. Besides, the silver rivets break up the otherwise very plain look of the bike.

Of course, esthetics are subjective.

Matt
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by Ham » Nov 20 2016 5:04am

I'd rather not ride in the mud but sadly if i don't it means I'll never get out on it round here
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by ElectricGod » Nov 20 2016 10:44pm

A crazy powerful machine like this! I'd ride wherever I could.
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by motomoto » Nov 21 2016 10:58pm

I like they way the bike looks without the motor cover. I just had an electrical panel put in at my shop and
the guy was an artist with the wiring. A pretty wiring job is the bomb. Guys should be creative wiring their ebikes.

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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by recumpence » Nov 22 2016 7:20am

motomoto wrote:I like they way the bike looks without the motor cover. I just had an electrical panel put in at my shop and
the guy was an artist with the wiring. A pretty wiring job is the bomb. Guys should be creative wiring their ebikes.
I feel the same way. I was into competition car audio years ago. We focused alot of time on wiring.

The cover is only for snow riding.

Matt
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by recumpence » Nov 26 2016 1:58pm

Not much to show in the way of pictures. However, I wanted to give a quick update;

Today I spent alot of time on electrical details. I fabricated the throttle and figured out the wiring of the Dominoe throttle (I have never used the Dominoe before), sourced a second controller from another project (I only had one controller available for this build), programmed the controllers, and did some other general wiring. What I have left to make is the primary wiring harness for the pack and the bike is finished. I am trying very hard to take my time on this build and not rush anything. Rather than cut corners for the sake of "Just getting the bike running", I have been more methodical than usual.

I am a few connectors short of what is needed to finish the bike. So, until more XT90s arrive, I will continue handling little details.

Oh, lastly, as a bike built with winter riding in mind, I have a set of LED headlights to install. I have one on another bike and it is wonderful. So, two of them on this bike should be great.

Matt
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by ElectricGod » Nov 28 2016 1:54am

recumpence wrote:Not much to show in the way of pictures. However, I wanted to give a quick update;

Today I spent alot of time on electrical details. I fabricated the throttle and figured out the wiring of the Dominoe throttle (I have never used the Dominoe before), sourced a second controller from another project (I only had one controller available for this build), programmed the controllers, and did some other general wiring. What I have left to make is the primary wiring harness for the pack and the bike is finished. I am trying very hard to take my time on this build and not rush anything. Rather than cut corners for the sake of "Just getting the bike running", I have been more methodical than usual.

I am a few connectors short of what is needed to finish the bike. So, until more XT90s arrive, I will continue handling little details.

Oh, lastly, as a bike built with winter riding in mind, I have a set of LED headlights to install. I have one on another bike and it is wonderful. So, two of them on this bike should be great.

Matt
What lights are you using?
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by recumpence » Nov 28 2016 7:56am

ElectricGod wrote:
recumpence wrote:Not much to show in the way of pictures. However, I wanted to give a quick update;

Today I spent alot of time on electrical details. I fabricated the throttle and figured out the wiring of the Dominoe throttle (I have never used the Dominoe before), sourced a second controller from another project (I only had one controller available for this build), programmed the controllers, and did some other general wiring. What I have left to make is the primary wiring harness for the pack and the bike is finished. I am trying very hard to take my time on this build and not rush anything. Rather than cut corners for the sake of "Just getting the bike running", I have been more methodical than usual.

I am a few connectors short of what is needed to finish the bike. So, until more XT90s arrive, I will continue handling little details.

Oh, lastly, as a bike built with winter riding in mind, I have a set of LED headlights to install. I have one on another bike and it is wonderful. So, two of them on this bike should be great.

Matt
What lights are you using?
No name ebay LED headlights. I will post a picture when I can.

Matt
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Re: The first and BEST Qulbix Raptor mid-drive build!

Post by litespeed » Nov 28 2016 8:00am

And a link please if you truely think they are wonderful!

Tom
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