HPC Revolution XXX

Discussions related to motors other than hub motors.
This includes R/C motors, botttom bracket, roller and geared drives.
Warren   100 kW

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Re: HPC Revolution XXX

Post by Warren » Oct 09 2015 5:01pm

Leeleeducati,

"I always thought that spline wasn't symmetrical for some reason?"

A freehub has one narrow spline tooth and, as a consequence, one wider space. This is to line up/index the cog's shift gates. But not necessary on the single speed cog you bought.

Leeleeducati   100 W

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Re: HPC Revolution XXX

Post by Leeleeducati » Oct 10 2015 8:32am

All this has to fit in here... I might go with a pulley vs. the Blackspire roller. There's a ton of measuring at this stage.
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cheekybloke   1 kW

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Re: HPC Revolution XXX

Post by cheekybloke » Oct 10 2015 12:24pm

Leeleeducati wrote:All this has to fit in here... I might go with a pulley vs. the Blackspire roller. There's a ton of measuring at this stage.
Hi mate,
awesome build.
You can use a bmx half link chain from motor to cranks and it enables you to get the chain tighter as you remove 1 link at a time not 2 as you would on a normal chain
Darren

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motomoto   1 kW

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Re: HPC Revolution XXX

Post by motomoto » Oct 10 2015 4:46pm

Just saying this because I've been there. When you get done and you ride it, all it's going to want to do is just flip over backwards. You have
motorcycle horsepower on a bicycle. The seat is high and over the back wheel and the force is being applied at the ground. There ya go.

You are doing an amazing job on this project. First class all the way. I can't wait to see it finished.

Leeleeducati   100 W

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Re: HPC Revolution XXX

Post by Leeleeducati » Oct 10 2015 6:12pm

Probably so, but somewhere there has to be a balance of gear, maybe lower voltage and decent programming and controller settings to be able to use this? I need to finish the mechanics to experiment. I've programmed such low throttle ramp up on the CA that I've barely inched forward so in a way I'm relying on electronics to keep this usable. This was the reason for going mid drive here, my previous hub builds just didn't cut it for super low speed technical climbs. I blame the Aussies for talking me into this giant :) in any case I've unwantingly passed the 12 o'clock position on many liter bikes in my day so I do have a respect for throttle.

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livetek   10 mW

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Re: HPC Revolution XXX

Post by livetek » Oct 12 2015 4:44am

Subscribed ! Great work !

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100volts+   10 kW

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Re: HPC Revolution XXX

Post by 100volts+ » Oct 12 2015 4:49am

subscribed
http://endless-sphere.com/forums/viewto ... =1&t=57440

Unlike puppets we have the possibility of stopping in our movements,
looking up and perceiving the machinery by which we have been moved. In this
act lies the first steps towards freedom. - PETER BERGER Sociologist

Leeleeducati   100 W

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Re: HPC Revolution XXX

Post by Leeleeducati » Oct 12 2015 4:19pm

Incisions complete, they lined up nicely. I've ordered some Delrin rod to machine grommets for the chains to pass through but for now they will have to stay like this. Everything on ebay takes a month to get here. The goal is to get this bike pedalable in the next week or so so I can start the electronics and get that motor spinning. I originally thought to put the tensioner on the plate I removed for these pics, but now I'm thinking/debating using the frame? might be easier to align before covers go on...
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kiwiev   10 kW

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Re: HPC Revolution XXX

Post by kiwiev » Oct 13 2015 5:12am

Love in your work Lee,

Cant wait for video :D

Cheers Kiwi

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livetek   10 mW

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Re: HPC Revolution XXX

Post by livetek » Oct 13 2015 5:19am

Same here ! ;)

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jansevr   1 kW

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Re: HPC Revolution XXX

Post by jansevr » Oct 13 2015 3:07pm

Cool build :) it will be interesting to see the performance/reliability of the revolt motor and what kind of continuous and peak power can be expected. In regards to flipping over backwards I would reccomend trying to modify the frame to use a dirt bike seat as opposed to a regular bike seat. I have done this with my 10kw dh bike and the difference is night and day. Now it is nearly impossible to flip because you can shift all your weight much further forward.

Leeleeducati   100 W

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Re: HPC Revolution XXX

Post by Leeleeducati » Oct 22 2015 4:05pm

Been super busy with home and work lately but had a chance to get a few things done... here's some recent progress on the motor side chain tensioner. You can't really tell from the pics with the chain slack, but when everything is buttoned up with the crank it works really well. That's a 6803RS bearing to gage size. I plan on machining the cog out of metal at some point but for now this will do.
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Leeleeducati   100 W

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Re: HPC Revolution XXX

Post by Leeleeducati » Oct 22 2015 4:18pm

With these pics you can see the milled slot the bolt/tensioner can slide up and down to adjust chain tension. Again the chain isn't connected to the crank chainring hence the slack. Drama... I'm on Rev. 3 of the front chain ring carrier... OCD or crazy obsessive perfectionist, not sure what/why but I'm just not happy with the way the chain line routes through/past the rear swing arm. This revision will have the motor drive chain on the outside and the inner chainring connects to the rear. Wasn't how I originally wanted it (for looks only) but with this configuration I can easily get 5+ reduction if needed with tons of clearance now that the chain is closer to the center of the frame.
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kiwiev   10 kW

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Re: HPC Revolution XXX

Post by kiwiev » Oct 23 2015 2:08am

Awesomw work mate :D

Cheers kiwi

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madin88   100 MW

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Re: HPC Revolution XXX

Post by madin88 » Oct 23 2015 3:50am

MASTER Work!
- 10kW belt drive with Neumotor 8057: viewtopic.php?f=30&t=91144&start=50#p1377787
- Fully road legal (L1E approval) e-bike based on Votec V-FR frame
/ MXUS 3T / 17" Mitas MC11 / Adaptto Max-E / 20s12p 25R
- KTM Hardtail Pedelec / eZee V2 6T / 27,5" / Kelly KBSX @ 1,5kW / Torque PAS / CA-V3 / 13s4p Sanyo GA in Shark case

Leeleeducati   100 W

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Re: HPC Revolution XXX

Post by Leeleeducati » Oct 23 2015 3:24pm

Any more of these and I could probably decorate the Christmas tree... Rev. 3 is the one with the 10 center holes. This reverses the motor chain with the rear sprocket chain orientation. Still have to tap the holes for the Eno and inside chainring on the 10 small holes. There's a fourth blank that I shouldn't need, no more changes...
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Leeleeducati   100 W

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Re: HPC Revolution XXX

Post by Leeleeducati » Oct 23 2015 7:17pm

Connection made.
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boisrondevens   100 W

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Re: HPC Revolution XXX

Post by boisrondevens » Oct 23 2015 7:54pm

awesome work!!

RobertC   1 W

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Re: HPC Revolution XXX

Post by RobertC » Oct 24 2015 12:36am

So, what is "wrong" with the batteries, are they extras from damaged packs or did they not pass QA or slightly used?

Do they have the expected capacity and amperage?

A great bargain even if they are only 90% perfect..

korpin   10 kW

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Re: HPC Revolution XXX

Post by korpin » Oct 29 2015 9:49pm

very nice work!....any idea of what top speed will be?...I am having HPC build me revolution with MXUS hub motor and mini adappto control...another feature will be schlump drive 1:2.5 34/85 was wondering if would be possible to install a schlump drive with your set up?

Leeleeducati   100 W

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Re: HPC Revolution XXX

Post by Leeleeducati » Oct 30 2015 11:47am

This build won't be for top speed, I'm targeting around 70kmph but with hill climbing ability. I believe this motor setup will favour top end with the right gearing. I had the BB threaded so I'm not sure the Schlumpf can fit? There's always the Hammerschmidt a threaded BB can accept and that one does freewheel also. You will enjoy your Revolution.

Leeleeducati   100 W

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Re: HPC Revolution XXX

Post by Leeleeducati » Oct 30 2015 2:32pm

The front chain tensioner was the last component to make this a pedalable bike. I had to mill a "swingarm" design mounted off one of the ISCG tabs. It had to move up and down with the rear (vs. stationary tension) and with the spring it does a very nice job. The top spring mount is just temporary, I didn't want to drill any holes until the concept was proven. I'm hoping to get this out on Sunday to field test the "bike" component and then it's on to the electronics.
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korpin   10 kW

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Re: HPC Revolution XXX

Post by korpin » Oct 30 2015 5:40pm

70 kmh is not too shabby for a mid drive looks like a great compromise between speed,hill climbing,and range!

Leeleeducati   100 W

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Re: HPC Revolution XXX

Post by Leeleeducati » Nov 03 2015 7:21pm

Top spring mount completed. The design needs no fasteners, it sits in the frame and holds the spring in place on it's own.
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Leeleeducati   100 W

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Re: HPC Revolution XXX

Post by Leeleeducati » Nov 03 2015 7:28pm

I took it out for a spin as a "bike" today. Spin being the key word, felt like a spin class with the current gears, might change out the rear sprocket just for this phase of testing. It's a solid bike, feels good and stable. The Double barrel and Dorado work real nice on this frame. The steer angle is a bit slack for street, so I'll have to take it to the trails to see how she handles there. I do have the Cane Creek angleset on there so I may reverse and try 0.5 degree increments till it feels right (steeper). Now it's officially time for the electronics!
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