GT i-drive 2.0 Build
- Thread starter GCinDC
- Start date
GCinDC
100 MW
Visiting my cousin in Greece in 1999, I learned some of the finer points of handling heavy traffic....
I thought it might explain a few things.
[youtube]XKkNSVD18e0[/youtube]
I thought it might explain a few things.
[youtube]XKkNSVD18e0[/youtube]
GCinDC
100 MW
Rained hard. Covered the pack. Up the long hill, the power cut out. Why?
Why else?
[youtube]vmOjeIpoc6s[/youtube]
I figured I'd show this as a last hurrah since a stash of bullets are due in soon. And so you guys know what I've been dealing with... Some Miles in the background for good measure.
Why else?
[youtube]vmOjeIpoc6s[/youtube]
I figured I'd show this as a last hurrah since a stash of bullets are due in soon. And so you guys know what I've been dealing with... Some Miles in the background for good measure.
GCinDC
100 MW
i was pretty sure it wasn't the phase wires... :lol:
and thank god it wasn't the controller! (it was pretty exposed to the wet.)
i'll be curious to see what performance improvement i'll get with the bullets.
ps, the pack look rough. i know you expect that from me. but if you recall, i once had dreams of clean manufactured looking pack cover, but finally gave up after going through three needles and one (now dead) sewing machine. Sewing through Cordura and sticky back velcro killed it.
in other news, huge storm last night. wet leaves everywhere. almost as bad as loose gravel (huh, icecube?).
any fallen trees on the trail dave?
i can just see the australians smirking as we head into winter and they bask in the sun...
and thank god it wasn't the controller! (it was pretty exposed to the wet.)
i'll be curious to see what performance improvement i'll get with the bullets.
ps, the pack look rough. i know you expect that from me. but if you recall, i once had dreams of clean manufactured looking pack cover, but finally gave up after going through three needles and one (now dead) sewing machine. Sewing through Cordura and sticky back velcro killed it.
in other news, huge storm last night. wet leaves everywhere. almost as bad as loose gravel (huh, icecube?).
any fallen trees on the trail dave?
i can just see the australians smirking as we head into winter and they bask in the sun...
You could just learn how make a fiberglass case mold to replace your metal sheet where the battery held. I mean the fiberglass case can make a good water proof seal because my step dad make lot fiberglass mold and case for his sailboat reason waterproof.
I have been thinking make a fiberglass for the battery case. I saw somewhere this forum one guy made beautiful fiberglass battery case and it looked so good.
I learned something new from you used 45amp power pole anderson connectors wow melt?! I better go get some bullet connectors instead so it would be handle high amp and high temperature handle. Keep us inform and I am eager see how the bullet handle the high amp and high temperature while you abuse your ebike.
Keep it up
I have been thinking make a fiberglass for the battery case. I saw somewhere this forum one guy made beautiful fiberglass battery case and it looked so good.
I learned something new from you used 45amp power pole anderson connectors wow melt?! I better go get some bullet connectors instead so it would be handle high amp and high temperature handle. Keep us inform and I am eager see how the bullet handle the high amp and high temperature while you abuse your ebike.
Keep it up
GCinDC said:i was pretty sure it wasn't the phase wires... :lol:
and thank god it wasn't the controller! (it was pretty exposed to the wet.)
i'll be curious to see what performance improvement i'll get with the bullets.
ps, the pack look rough. i know you expect that from me. but if you recall, i once had dreams of clean manufactured looking pack cover, but finally gave up after going through three needles and one (now dead) sewing machine. Sewing through Cordura and sticky back velcro killed it.
in other news, huge storm last night. wet leaves everywhere. almost as bad as loose gravel (huh, icecube?).
any fallen trees on the trail dave?
i can just see the australians smirking as we head into winter and they bask in the sun...
Lots of tree leaves and branches on the trail. I went slower. Same tree blocking path near canal as yesterday. This morning I passed a road biker stopped looking at the tree I guess trying to figure how to get around it. With my DH bike I rode off the trail around the tree and then back onto the trail without stopping!
GCinDC
100 MW
package on the stoop = joy.
ordered monday, arrived today! (paid $40 shipping! could have paid $20 to have them arrive in a month? decied to buy extras to sell and recoup some of the shipping cost...
)
ordered monday, arrived today! (paid $40 shipping! could have paid $20 to have them arrive in a month? decied to buy extras to sell and recoup some of the shipping cost...
) GCinDC said:package on the stoop = joy.
ordered monday, arrived today! (paid $40 shipping! could have paid $20 to have them arrive in a month? decied to buy extras to sell and recoup some of the shipping cost...
Neighbors did not find it!
Did it come from HK USA warehouse?
Hyena
10 GW
It's probably too late now but has anyone tried these new ones from HK ?
XT150s - supposedly rated to 250 amps.
They interlock like andersons too which is cool.
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idproduct=12887&aff=81978
Nice vids tmaster, that should be helpful for the noobs.
XT150s - supposedly rated to 250 amps.
They interlock like andersons too which is cool.
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idproduct=12887&aff=81978
Nice vids tmaster, that should be helpful for the noobs.
beast775
100 kW
thanks for the solder vids tmaster,you wouldnt think i need them after soldering for 35 years part time but i just cant ever get it right .thanks.
.thanks.
bzhwindtalker
100 kW
I got some XT150 also, and they are really huge! more suited to 8awg. they don't keep together when stacked, but qith some glue they do. If you need high current capacity, they are the ticket!
GCinDC
100 MW
nice thread here, fyi: Wiring/Connecting/Terminating Materials Thread.
PACK UPDATE:
i hadn't expected my supplies so soon, a need a couple more things before getting down to business building the pack.
also have to decide if i should deconstruct the old pack or leave it and build another... i'm leaning toward building an identical (but better) one. the loop to lock and the db25 mount took a couple days so i gotta psych myself up for that...
and i've got to decide if i should cut down the power leads since i'm just going to have to tape them out of the way...
can't decide...
STORIES FROM THE ROAD:
yesterday, inbound under the tunnel, a vw wagon was trailing me on the left. he had plenty of time to pass but didn't. up at the light, he gave me an enthusiastic thumbs up. he asked what it's called. well, my unofficial name for the bike is 'the terror of mass ave', but i just said, 'it's homemade' and took off.
that was a much more pleasant experience than the dude in the minivan behind me in the left lane at the light. the way he was honking and waving his hands at me to move off (when i turned to raise my eyebrows), he was obviously afraid about being stuck for eternity with me, entombed together. i sped with traffic for a couple lights to demonstrate my right to be there, before disappearing far, far ahead.
i was pretty pissed though, and made some silly moves later on. i gotta stay cool and detached. it's fun to be competitive, but not it's not worth getting doored, and that's one of my primary concerns, along w/ all the crosses and peds.
FROM THE NET:
well, that's a lot of words. now for a nice vid. totally pro. quality to aspire to. inspirational. spiritual. open in youtube, put your headphones on and watch full screen.
[youtube]Cj6ho1-G6tw[/youtube]
PACK UPDATE:
i hadn't expected my supplies so soon, a need a couple more things before getting down to business building the pack.
also have to decide if i should deconstruct the old pack or leave it and build another... i'm leaning toward building an identical (but better) one. the loop to lock and the db25 mount took a couple days so i gotta psych myself up for that...
and i've got to decide if i should cut down the power leads since i'm just going to have to tape them out of the way...
can't decide...STORIES FROM THE ROAD:
yesterday, inbound under the tunnel, a vw wagon was trailing me on the left. he had plenty of time to pass but didn't. up at the light, he gave me an enthusiastic thumbs up. he asked what it's called. well, my unofficial name for the bike is 'the terror of mass ave', but i just said, 'it's homemade' and took off.
that was a much more pleasant experience than the dude in the minivan behind me in the left lane at the light. the way he was honking and waving his hands at me to move off (when i turned to raise my eyebrows), he was obviously afraid about being stuck for eternity with me, entombed together. i sped with traffic for a couple lights to demonstrate my right to be there, before disappearing far, far ahead.
i was pretty pissed though, and made some silly moves later on. i gotta stay cool and detached. it's fun to be competitive, but not it's not worth getting doored, and that's one of my primary concerns, along w/ all the crosses and peds.
FROM THE NET:
well, that's a lot of words. now for a nice vid. totally pro. quality to aspire to. inspirational. spiritual. open in youtube, put your headphones on and watch full screen.
[youtube]Cj6ho1-G6tw[/youtube]
grindz145
1 MW
GCinDC said:
This is like the 2 wheel mantra to live by. I constantly try to remind myself of that. I can't help but feel like the world of 4 wheelers is against me some days though...
bzhwindtalker
100 kW
that's really a beautiful video!
Ypedal
100 TW
Wow !!!!! 
* Got shivers from watching that video.. amazing to stick one's neck out like that and live to tell about it !!!.. aaaawwwome !
* Got shivers from watching that video.. amazing to stick one's neck out like that and live to tell about it !!!.. aaaawwwome !
GCinDC said:package on the stoop = joy.
ordered monday, arrived today! (paid $40 shipping! could have paid $20 to have them arrive in a month? decied to buy extras to sell and recoup some of the shipping cost...
HK is about 12 to 14 days shipping for normal air mail or registered mail. Express is about 5 to 7 days. Thats to Texas here though, and it does come through the east coast so it might be a little faster for you!
beast775 said:thanks for the solder vids tmaster,you wouldnt think i need them after soldering for 35 years part time but i just cant ever get it right
You're welcome! Solderings kinda a finiky thing. When I first started I never used flux and was weary not to use it, I thought in my head that it wouldnt work as well and cause a poor connection! LOL I was wrong wrong! But theres different technique's people use; I probably go a little overboard sometimes on making the solder connection. But I've never had a connection fail yet!
beast775
100 kW
is he even human? i cant imagine how much work thats is 8) ..incredible.great vid.
GCinDC
100 MW
New bulk chargers. The little black things on the right shown w/ my meanwell/icharger combo for size comparison!
The 'bulk charger' is made of ping 48V 2A charger (61V) and a lenovo 20V 4.5A charger ($9 ebay) in series for 81V+.
I'd been thinking about a couple meanwells, or 4 actually, for home & work, but then I realized that I charge 5s8p @ 10A, so 4hrs for the whole pack, and i rarely use the whole pack. if i charge 20s2p, to charge the same speed, i only need 2.5A @ 80V. i tested it and it seems to work. but i'm rebuilding my pack this weekend, so the full charge will have to wait. And I'll probably do a couple cycles as 5s with the iCharger. But bottom line, I've got a light cheap charging solution to carry aournd! i think i'm going to parallel the AC cords so I don't need two outlets...
If this works well, I may just buy three more of the lenovo chargers to charge at 4.5A!
so the mess, actually just before cleaning up. i would have stayed up late to solder the power leads but my 250W soldering iron started smoking out it's ass.
i spent a fair amount of time thinking how to crimp three 10AWG wires. I sawed the hex end off coax connectors, but the crimp wasn't great (and the soldering iron died) so that decided it.
i know what you're thinking, i got a million bullets to build harnesses.... but something JohninCR said struck home, something about soldering all the connections on his next build. and the truth is that this pack isn't coming apart, if i can help it. the last one stayed in there a year, and i hope this one does too.
i'll use the bullets for the phase wires, etc, but to parallel the power leads, get this, i'm going to use big ass wirenuts. Feel free to convince me otherwise. You've got until tomorrow noon when I'm going to the hardware store!
anyway, here's the hermit crab without its shell, fyi. notice the goo marks on the packs. those illustrate how much the packs have swollen...
View attachment 6
side by side to show swelling.
taping up w/ fiber tape this time!
hot-glued the JST-XH's. suckers aren't going anywhere...
more work tomorrow! (and no riding... )
The 'bulk charger' is made of ping 48V 2A charger (61V) and a lenovo 20V 4.5A charger ($9 ebay) in series for 81V+.
I'd been thinking about a couple meanwells, or 4 actually, for home & work, but then I realized that I charge 5s8p @ 10A, so 4hrs for the whole pack, and i rarely use the whole pack. if i charge 20s2p, to charge the same speed, i only need 2.5A @ 80V. i tested it and it seems to work. but i'm rebuilding my pack this weekend, so the full charge will have to wait. And I'll probably do a couple cycles as 5s with the iCharger. But bottom line, I've got a light cheap charging solution to carry aournd! i think i'm going to parallel the AC cords so I don't need two outlets...
If this works well, I may just buy three more of the lenovo chargers to charge at 4.5A!
so the mess, actually just before cleaning up. i would have stayed up late to solder the power leads but my 250W soldering iron started smoking out it's ass.
i spent a fair amount of time thinking how to crimp three 10AWG wires. I sawed the hex end off coax connectors, but the crimp wasn't great (and the soldering iron died) so that decided it.
i know what you're thinking, i got a million bullets to build harnesses.... but something JohninCR said struck home, something about soldering all the connections on his next build. and the truth is that this pack isn't coming apart, if i can help it. the last one stayed in there a year, and i hope this one does too.
i'll use the bullets for the phase wires, etc, but to parallel the power leads, get this, i'm going to use big ass wirenuts. Feel free to convince me otherwise. You've got until tomorrow noon when I'm going to the hardware store!
anyway, here's the hermit crab without its shell, fyi. notice the goo marks on the packs. those illustrate how much the packs have swollen...
View attachment 6
side by side to show swelling.
taping up w/ fiber tape this time!
hot-glued the JST-XH's. suckers aren't going anywhere...
more work tomorrow! (and no riding...
)
Hyena
10 GW
Have you measured the output of this and found it to be fairly constant current ? And does it actually output 20v or 21 ?GCinDC said:
I've been thinking about getting one of those universal laptop chargers to mod as a cheap and light backup charger to leave at work etc. A few on ebay have multiple voltage options but they usually go 20, 22, 24v. I'm assuming there's just a resistor network inside that's probably fairly easy to mod to get the exact voltage you need.
On an unrelated note, did you find there was much difference in the bikes performance when you temporarily went from 20S to 24S ?
I'm trying to decide whether to go 24S zippy 25C lipo for my next build or 20S 25-50C turnigy nano-tech (2 10S packs in series). Both would cost around the same and while the higher voltage has obvious appeal I kinda wanna try out the nano-techs too (although not in 24S for the cost of multiple 6S packs)
GCinDC
100 MW
measured 20.6 - 20.7V on the laptop charger at rest. my watts up is broken and i didn't feel like dragging out the alligator clips to measure the current on the voltmeter because i was thinking the ping is only 2A, so the laptop puppy at 4.5A ought to be able hang w/ that, yo. and because the ping charger is cc/cv, won't it keep other chargers in series up at cc? that's what i thought i understood from the whole meanwell hiccuping... i'll measure though when i charge for real.
great question: 24s vs 20s? it's been a while, but as i recall:
- 24s on the same controller gave only slightly higher torque
- 24s had a noticeably higher top speed (i recall feeling like God!)
i decided against running 24s though because:
- i knew me and that god feeling meant trouble!
- 24s wouldn't fit in my pack and would require extra tedious work at charging
- and to retrofit my pack would take serious work, and the db25 system won't work...
- configuring regen wasn't going well, and i rely on regen for significant braking. in fact i think my rear brakes were shot when i tried it.
now that you mention it, i probably could have bought 6s and fit 24s in my pack (they're just wider than the 5s, no?). i would just need better brakes, regen or no... alas... maybe the 4th build.
ps. regen has been working well on my lyen controller out of the box, but only when i drop to 75V, which i do quickly w/ my dying pack. it kicks in slightly when i let off the throttle, and twice as hard when i pull the ebrake lever. the rear vbrake pads rarely touch, except when postmen walk in front of me, as you'll see in my next video.
great question: 24s vs 20s? it's been a while, but as i recall:
- 24s on the same controller gave only slightly higher torque
- 24s had a noticeably higher top speed (i recall feeling like God!)
i decided against running 24s though because:
- i knew me and that god feeling meant trouble!
- 24s wouldn't fit in my pack and would require extra tedious work at charging
- and to retrofit my pack would take serious work, and the db25 system won't work...
- configuring regen wasn't going well, and i rely on regen for significant braking. in fact i think my rear brakes were shot when i tried it.
now that you mention it, i probably could have bought 6s and fit 24s in my pack (they're just wider than the 5s, no?). i would just need better brakes, regen or no... alas... maybe the 4th build.
ps. regen has been working well on my lyen controller out of the box, but only when i drop to 75V, which i do quickly w/ my dying pack. it kicks in slightly when i let off the throttle, and twice as hard when i pull the ebrake lever. the rear vbrake pads rarely touch, except when postmen walk in front of me, as you'll see in my next video.
GCinDC
100 MW
ps. the genuine lenovo chargers are TINY, esp the 20V3.25A 65W ones - 4 taped in a block would be 1/2 the size of a meanwell; the generic ones (mine) larger. it has no fan, and i'm toying with the idea of mounting it w/ the pack. i'd like to have a single long extension cord to pull out and plug in... probably won't but just a thought...
Hyena
10 GW
Cool. I'm not worried about the extra top speed from running 24S, more so the mid range torque and acceleration. After getting around with a 15S pack and 40a controller for ages jumping back on my 18S 60a controller bike felt heaps faster, so I suspect 20S voltage with 120% timing will suffice (infact I'll probably normally run in ~ 80% speed mode for less twitchy throttle response)
But then I do have a shiny new 9C 8x8 here which I'd love to test on 24S, but I guess these are musings for a new thread of mine, not clogging up yours :wink:
But then I do have a shiny new 9C 8x8 here which I'd love to test on 24S, but I guess these are musings for a new thread of mine, not clogging up yours :wink:
grindz145
1 MW
Considering you're having trouble blowing controllers up at 20s, that's probably another reason not to go to 24
