grwsaltspring
10 W
- Joined
- Feb 25, 2008
- Messages
- 74
Good Fun
Greg
Greg
GGoodrum said:Here's the short video. It turns out you can upload it directly from the iPhone. Amazing.
[youtube]VVlOBXe4a5o[/youtube]
oatnet said:Great vid - how is the noise from the motor? That vid of recumpence's beautiful twin motor PK ripper was too loud for my stealth standards but yours sounds much quieter. I know that the DC motor in my VW is much more apparent in video than on tape, maybe I will try one of these builds after all.
-JD
PS - yep, Iphone 3GS rules
deecanio said:Thanks for the vid Gary, looks like it pulls very nicely, was that a "too fast" i heard in the vid :lol:
not to derail, im thinking of getting the iphone 3gs - you approve then?
D
lesdit said:I think you need a full suspension bike for that road in the video !
methods said:Looking good.
Bob is getting blasted from all side about the hall sensor issue.
I really think the next step is to just convince him to do a one-off.
Ask if he can epoxy the hall sensors right into the motor.
If he can, --- just once---, place those halls where they should go then we can duplicate the spacing perfectly.
-methods
P.S. Dont get your leg caught in that meat grinder
GGoodrum said:The 3Gs rocks! Absolutely amazing what this thing will do, and it is very fast, even on the 3G mode. Anyway, I'm loving it.deecanio said:not to derail, im thinking of getting the iphone 3gs - you approve then?
drewjet said:Nice vid.
Love the freewheel adapter, any idea on price and availability?
drewjet said:Nice vid.
Love the freewheel adapter, any idea on price and availability?
GGoodrum said:Not sure yet, but they should be pretty cheap. My guy is normally quite reasonable, and I told him to make about 50, or so. I also told him to have them all anodized black. I just need to do a fit check tomorrow, on the bike, and then I'll have him do the run. Depending on how busy he is, it could be a couple days, or a week. The anodizing adds another day is all.
-- Gary
MitchJi said:Hi Gary,
drewjet said:Nice vid.
Love the freewheel adapter, any idea on price and availability?
GGoodrum said:Not sure yet, but they should be pretty cheap. My guy is normally quite reasonable, and I told him to make about 50, or so. I also told him to have them all anodized black. I just need to do a fit check tomorrow, on the bike, and then I'll have him do the run. Depending on how busy he is, it could be a couple days, or a week. The anodizing adds another day is all.
-- Gary
I think you should get a price/weight of aluminum vs steel. When Matt had his (much smaller) FW adaptors made the weight difference was pretty substantial.
50 sounds like a lot to me if the only application is right hand drive with Nexus Hubs. How many drives has Matt sold and how many of those are being used with right hand drive with aNexus Hub?
MitchJi said:I think you should get a price/weight of aluminum vs steel. When Matt had his (much smaller) FW adaptors made the weight difference was pretty substantial.
MitchJi said:50 sounds like a lot to me if the only application is right hand drive with Nexus Hubs. How many drives has Matt sold and how many of those are being used with right hand drive with a Nexus Hub?
gwhy! said:But it dont have to go on a nexus hub it will allow two indepent freewheels on the rear of the bike also which is a very good thing in my book anyway, thats my understanding of the adapter if im wrong can someone please let me know ..
Also I would like to ask will this adaptor be screwed to a wheel so its fixed and then put a freewheel onto the adaptor or dosnt it have a standard freewheel thread on the inside now that would be cool.
Perfect! 8)GGoodrum said:These are aluminum. The idea is that this adapter and the big sprocket are aluminum, to save weight, and then the 16T cog that is sandwiched between these two is hardened steel, as it is attached to the hub.
MitchJi said:50 sounds like a lot to me if the only application is right hand drive with Nexus Hubs. How many drives has Matt sold and how many of those are being used with right hand drive with a Nexus Hub?
GGoodrum said:Although you can certainly use these with Matt's hub, the intent really was to come up with a much simpler direct-drive setup. Also, thee's a ton of single-speed cruiser-type bikes out there that use the same sort of three-splined cog, held on with a steel circlip. We have 5 or 6 of these beach cruisers down at our condo in SD. I'm thinking a six-wire 12-turn 3210, with one of Richard's new delta-wye switching widgets, would make a great two-speed commuter bike setup. Anyway, 50 seems like a good starting number, as it gets the per unit cost as low as possible. If I end up with a bunch of unused ones, I'll start a new pile, next to the 13" stack of unused prototype BMS boards.
-- Gary
GGoodrum said:The second purpose is to put a second freewheel (the hub has one...) on there for pedal chain, so that the motor won't drive the pedals, or the chain going to the pedals...
GGoodrum said:gwhy! said:But it dont have to go on a nexus hub it will allow two indepent freewheels on the rear of the bike also which is a very good thing in my book anyway, thats my understanding of the adapter if im wrong can someone please let me know ..
Also I would like to ask will this adaptor be screwed to a wheel so its fixed and then put a freewheel onto the adaptor or dosnt it have a standard freewheel thread on the inside now that would be cool.
The purpose of this adapter is two-fold. First, it will allow either a multi or single-speed hub, with a three-splined removable cog, to have now two chains to the rear, one for the motor and one for the pedals. The second purpose is to put a second freewheel (the hub has one...) on there for pedal chain, so that the motor won't drive the pedals, or the chain going to the pedals. this eliminates the need for replacing the front crankset with one that has an embedded freewheel. The advantage of having the FW in the back is that with it in the crank, the chain will still move with the motor, but the pedals won't.
The way it works is pretty much the same way something like an IPS freewheeling crank works, which simply embeds a 16T BMX freewheel in the crankset. The four holes in the adapter, and the holes on the big sprocket, line up perfectly with a 16T sprocket. So, the 16T Nexus sprocket is "sandwiched" between the big #35 sprocket and the adapter. Then, you simply screw on a BMX freewheel (they come from 16t to 22t...), onto the adapter. I'll post some pics of this assembly, on this bike, a little later today.
-- Gary
methods said:So how are you feeling about your decision to go with #35?
I am going to try some of the #25 pieces from Electric Scooter Parts.
They will bolt right onto that adapter you made. Largest rear is 90T
They have a few front gears that will bolt onto a 3/8" for cheap.