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Search: Posts Made By: rscamp
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05-12-15, 04:21 AM
Replies: 10
Views: 1,591
Posted By rscamp

I like both and don't have a preference until the...

I like both and don't have a preference until the usage is defined. For example, a crank drive with a variable speed rear hub is a combo that is nice to use. With a derailleur, shifting - at least...
05-11-15, 06:45 PM
Replies: 10
Views: 1,591
Posted By rscamp

Sure. In the interest of fairness... -...

Sure. In the interest of fairness...

- generally more expensive
- more mechanical complexity
- harder on pedal chain
- totally dependent on the pedal chain (a series rather than a parallel...
05-11-15, 05:14 PM
Replies: 10
Views: 1,591
Posted By rscamp

Crank drive has some nice advantages: -...

Crank drive has some nice advantages:

- location of mass better for handling
- gearing ratio is changeable to exchange speed for torque and vice versa
- both wheels remain easier to remove for...
04-04-15, 07:07 PM
Replies: 10
Views: 1,591
Posted By rscamp

Also look into a Bafang 8fun BBS02 crank drive...

Also look into a Bafang 8fun BBS02 crank drive...
01-22-15, 05:39 AM
Replies: 10
Views: 2,314
Posted By rscamp

What about "high drain" cells? Sure, they have...

What about "high drain" cells? Sure, they have lower rated capacity but the lower internal impedance of the high current cells makes more of this capacity useable in high-drain applications and...
11-24-14, 05:43 AM
Replies: 267
Views: 17,175
Posted By rscamp

For riding in traffic, bright bicycle lights need...

For riding in traffic, bright bicycle lights need a cut off for the filament/emitter and an appropriately shaped reflector just like low beams on a car. It is that simple.
11-21-14, 02:34 PM
Replies: 5
Views: 849
Posted By rscamp

You can buy these connectors at ebikes.ca.

You can buy these connectors at ebikes.ca.
11-01-14, 11:17 AM
Replies: 118
Views: 10,380
Posted By rscamp

I'm not sure what you mean by a "small/efficient"...

I'm not sure what you mean by a "small/efficient" motor. The BionX? Because a much smaller and much more efficient motor like an Astro 32XX series generates way more power for hill climbing than...
10-28-14, 04:27 AM
Replies: 118
Views: 10,380
Posted By rscamp

At what average speed? What does your bike...

At what average speed? What does your bike weigh?

I average 8Wh/km on a hilly route with an average speed of 30km/h. This is about 13Wh/mi at about 20mph. The trike weighs 70lbs.
10-28-14, 04:21 AM
Replies: 118
Views: 10,380
Posted By rscamp

No. We have already gone over this. You end up...

No. We have already gone over this. You end up losing speed and don't know if you are gaining any distance. If you didn't lose the speed, you could have gone farther on your kinetic energy.

Do...
10-28-14, 04:13 AM
Replies: 118
Views: 10,380
Posted By rscamp

But the question is what are the big numbers...

But the question is what are the big numbers showing.
10-27-14, 08:12 PM
Replies: 118
Views: 10,380
Posted By rscamp

Quite the contraption! Does it have a...

Quite the contraption! Does it have a refrigerator? :)

Here's some info on a trike I ride:

https://www.flickr.com/photos/rscamp/sets/72157635549406106/
10-27-14, 07:50 PM
Replies: 118
Views: 10,380
Posted By rscamp

Wow. This is a wild goose chase. You appear to...

Wow. This is a wild goose chase. You appear to be in diagnostic mode. It could be the large numbers are displaying something like the strain gauge value for pedelec assist. You need to look up...
10-27-14, 07:17 PM
Replies: 118
Views: 10,380
Posted By rscamp

Good catch, SpecialX. Watt-hours are cumulative....

Good catch, SpecialX. Watt-hours are cumulative. Although a Watt-Hour is a measure of energy and is the product of Watts X hours rather than Watts per hour.

350htrr - Can you take a close up...
10-27-14, 04:19 AM
Replies: 118
Views: 10,380
Posted By rscamp

...and 180W for 15 minutes is a LOT of effort for...

...and 180W for 15 minutes is a LOT of effort for most riders.

Yup. With any unmeasured human involvement in a riding cycle the regen numbers are meaningless.

I have nothing against regen as...
10-26-14, 03:33 PM
Replies: 118
Views: 10,380
Posted By rscamp

i generally agree with you, SpecialX. Voltage...

i generally agree with you, SpecialX. Voltage can be a very poor measure of SoC, but it can also be fairly good. It depends on the batteries and the conditions under which the voltage is measured. ...
10-20-14, 06:07 PM
Replies: 3
Views: 2,212
Posted By rscamp

I was informed the Bafang crank arms are 170mm. ...

I was informed the Bafang crank arms are 170mm. I have purchased Schlumpf crank arms to bring them down to 155mm on a recumbent.
10-18-14, 04:26 AM
Replies: 118
Views: 10,380
Posted By rscamp

Cool. You can also go to a more efficient motor...

Cool. You can also go to a more efficient motor to get range. The motor I use is at least 10% more efficient than an average hub motor.
10-14-14, 04:35 AM
Replies: 118
Views: 10,380
Posted By rscamp

You put in additional effort to enjoy some...

You put in additional effort to enjoy some additional assist time at the end. Okay. Whatever turns your crank. You just can't call it 15% range extension or 15 extra km for the same overall energy...
10-13-14, 04:53 AM
Replies: 27
Views: 2,788
Posted By rscamp

There is a lot of room there and handy attachment...

There is a lot of room there and handy attachment points. Should be easy! :)
10-13-14, 04:34 AM
Replies: 118
Views: 10,380
Posted By rscamp

Sorry, not trying to annoy you. Just trying to...

Sorry, not trying to annoy you. Just trying to get you to see what you are missing.

When you go downhill, you use regen, correct? What happens if you go down hill without it? You go faster. ...
10-12-14, 08:20 PM
Replies: 118
Views: 10,380
Posted By rscamp

Exactly. The rider is actually expending...

Exactly. The rider is actually expending additional energy overall applying human effort to regen. This is a net waste of energy. It is not range extension unless you cheat and ignore the human...
10-12-14, 12:54 PM
Replies: 27
Views: 2,788
Posted By rscamp

I like Bailey!!! Here's our corgis playing...

I like Bailey!!!

Here's our corgis playing shortly after we got Callie. https://www.youtube.com/watch?v=6RrAuGiguX0&list=UUW5PAgR3yAewYcL2JS3bdoA
Here's our other corgi Cerin playing in the...
10-12-14, 11:24 AM
Replies: 27
Views: 2,788
Posted By rscamp

Ha! We have two. Here's the younger one in...

Ha! We have two. Here's the younger one in training...

411425
10-12-14, 11:06 AM
Replies: 27
Views: 2,788
Posted By rscamp

Hey. Is your co-pilot a corgi?

Hey. Is your co-pilot a corgi?
10-12-14, 10:54 AM
Replies: 118
Views: 10,380
Posted By rscamp

I'm glad you are happy with it. I believe you...

I'm glad you are happy with it. I believe you are convinced it provides you 15% range benefit.

Perhaps you could describe in detail the specifics of how you typically ride to educate me on how...
10-12-14, 10:34 AM
Replies: 27
Views: 2,788
Posted By rscamp

Turn signals on a bicycle can easily be as to see...

Turn signals on a bicycle can easily be as to see and understand as they are on a motorcycle if they meet the same criteria.

I think that universally the turn signal kits made for bikes are made...
10-12-14, 09:59 AM
Replies: 118
Views: 10,380
Posted By rscamp

I'm guessing you are referring to me as someone...

I'm guessing you are referring to me as someone who things regen is useless. Well I never said it was useless. It can be good for braking, for example. :) Just that for some situations and for...
10-12-14, 09:52 AM
Replies: 27
Views: 2,788
Posted By rscamp

The point about the spacing between turn signal...

The point about the spacing between turn signal lights is a good one. But it can be aided with light colours and a centre reference. For example, use yellow for turn signals and have a red running...
10-09-14, 08:53 AM
Replies: 118
Views: 10,380
Posted By rscamp

It is more than that. Look at the whole test...

It is more than that. Look at the whole test process as DrkAngel points out. What are the uncontrolled, or poorly controlled, variables?
10-09-14, 04:53 AM
Replies: 118
Views: 10,380
Posted By rscamp

Is it just me or is it hard to make sense of...

Is it just me or is it hard to make sense of this?

Think about this. Whatever you do to evaluate your energy usage and the benefit of regen, someone else would have to be able to repeat the test...
10-06-14, 04:05 PM
Replies: 118
Views: 10,380
Posted By rscamp

Ah is capacity in Ampere-hours. This would be...

Ah is capacity in Ampere-hours. This would be average current X time. Wh is energy in Watt-hours. This would be average power X time. So both of these are cumulative values and not instantaneous...
10-06-14, 01:43 PM
Replies: 118
Views: 10,380
Posted By rscamp

I'm not sure what you are really measuring. You...

I'm not sure what you are really measuring. You should measure Ah or Wh. Use a standard course with and without regen and don't pedal.
10-04-14, 04:43 PM
Replies: 118
Views: 10,380
Posted By rscamp

:) Get yourself a CA or as a minimum, a hobby...

:) Get yourself a CA or as a minimum, a hobby "Whattmeter" if you want to see what is going on.
10-04-14, 03:28 PM
Replies: 118
Views: 10,380
Posted By rscamp

I didn't do any extrapolation in what was quoted....

I didn't do any extrapolation in what was quoted. Nor did I say it has no value. I'm not sure where you got this idea. What I am saying is that it's value is very limited and that many people,...
10-02-14, 05:57 PM
Replies: 118
Views: 10,380
Posted By rscamp

What is the drag torque for a given speed on one...

What is the drag torque for a given speed on one of these? Does anyone have hard numbers?
10-02-14, 05:37 PM
Replies: 118
Views: 10,380
Posted By rscamp

Actually, I'm glad you like it and I hope you get...

Actually, I'm glad you like it and I hope you get significant benefit from it.

For me, and I think for many others who perhaps don't realize it, the weight and the parasitic losses of...
10-02-14, 03:52 PM
Replies: 118
Views: 10,380
Posted By rscamp

With the exceptions you cite, you in fact support...

With the exceptions you cite, you in fact support my statement!
10-02-14, 02:51 PM
Replies: 118
Views: 10,380
Posted By rscamp

Righto! So for many people and many...

Righto!

So for many people and many situations, regen has little or even no benefit whatsoever - thus its seemingly high desirability with prospective e-assist customers is misplaced.
10-02-14, 12:59 PM
Replies: 118
Views: 10,380
Posted By rscamp

I don't follow what you are trying to show. My...

I don't follow what you are trying to show. My point is this.

What does regen do to extend range on the flat with no stops? The only source of energy other than the batteries under these...
09-22-14, 06:25 PM
Replies: 118
Views: 10,380
Posted By rscamp

I'd like to see a detailed analysis showing the...

I'd like to see a detailed analysis showing the extra range that results from using regen when riding on flat roads without stopping. :)
08-22-14, 04:43 AM
Replies: 1
Views: 1,511
Posted By rscamp

To further clarify the situation with 'unsprung'...

To further clarify the situation with 'unsprung' weight it should be noted that relative to the ground the wheel is sprung by the tire. The tire is fundamentally a compressed-air-filled balloon with...
07-14-14, 04:39 AM
Replies: 4
Views: 1,732
Posted By rscamp

Here's my brief review... BentRider Online...

Here's my brief review...
BentRider Online Forums - View Single Post - PBS Vid on the ELF (http://www.bentrideronline.com/messageboard/showpost.php?p=1225315&postcount=28)
02-03-14, 11:35 AM
Replies: 26
Views: 2,843
Posted By rscamp

Hmmm. I think a Garmin Montana meets most of the...

Hmmm. I think a Garmin Montana meets most of the requirements of the OP. It meets some of the really important ones like sunlight readability and weather resistance. It isn't cheap though...
01-31-14, 04:53 AM
Replies: 12
Views: 1,510
Posted By rscamp

Yes exactly. I have added a 2s balancing plug to...

Yes exactly. I have added a 2s balancing plug to a 2-cell 18650 battery holder for this purpose. And the charge rate is so low compared with LiPos, that the two cells could even come from different...
01-30-14, 05:43 AM
Replies: 12
Views: 1,510
Posted By rscamp

This depends on your skill level with...

This depends on your skill level with re-terminating cables, but another very viable possibility is to simply ignore the connectors that come with these lights entirely. Cut them off and put on...
01-20-14, 06:41 PM
Replies: 8
Views: 709
Posted By rscamp

I don't know what connector you've got on the...

I don't know what connector you've got on the battery you are trying to charge but if you source it you can make charge leads for any of the chargers there that will do 1s (a single LiPo cell).
...
01-14-14, 05:41 AM
Replies: 8
Views: 709
Posted By rscamp

I suggest you get a cheap hobby charger - then...

I suggest you get a cheap hobby charger - then you can charge a wide variety of batteries. Most of these run on a 12VDC source...
...
01-08-14, 08:37 PM
Replies: 118
Views: 8,117
Posted By rscamp

:) The 800 pound gorilla...

:) The 800 pound gorilla...
01-08-14, 07:13 PM
Replies: 118
Views: 8,117
Posted By rscamp

What is the efficiency of the system in...

What is the efficiency of the system in generating electrical power supplied to the light?
Showing results 1 to 50 of 251
 


 
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