Search found 978 matches

by tostino
Oct 01 2012 2:26pm
Forum: General Discussion
Topic: Tablet advice - iPad or Android?
Replies: 129
Views: 5859

Re: Tablet advice - iPad or Android?

One has to ask why Google needed, or wanted, to even have a wifi receiver in their vehicles whilst driving around residential areas taking photos. If they had no intention of collecting data from home wifi networks why on earth did they even fit the gear? Clearly they actually wanted to collect thi...
by tostino
Oct 01 2012 12:25pm
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

It's time for another update! I don't have any pics at the moment (at work), but i'll post em later. I had some free time, and a dremel, so yesterday I got to modifying the case. I notched out a slot for the high power, and signal wires, and created 8 holes for the water cooling tubing to get into t...
by tostino
Sep 25 2012 6:10pm
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

So, i've got almost everything ready to go... I am having some issues trying to wire up my controller for my CA, the CA had a speed sensor, but that was broken in the accident, so I wanted to try and hook up the speed sensing through my controller but am having trouble finding info on how. Lots forg...
by tostino
Sep 21 2012 12:12pm
Forum: E-Bike Technical
Topic: What length spokes for a 9c motor and 29er rim
Replies: 3
Views: 409

What length spokes for a 9c motor and 29er rim

So, i'm just about done with my controller for my bike, and need to get going on the motor. I need to lace up my 9c into a 29er rim, and I am having trouble figuring out what length spokes I will need... Does anyone have experience with this? Have any tips? What did you use? This is the rim I was go...
by tostino
Sep 18 2012 10:57pm
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

hillzofvalp wrote:very interesting. *crosses fingers* getting close?
You tell me...
by tostino
Sep 18 2012 9:30am
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

I put kapton tape on the ends of the low side fet blocks, and that seemed to provide some pretty good protection. The material on the back is a cut up mouse pad. I thought that would work pretty good because it adds some spring. I had some mis-sized shunts, and I had to kinda build that bridge to ge...
by tostino
Sep 18 2012 8:45am
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

I'll cut to the good stuff... a bunch of new pictures.
by tostino
Sep 14 2012 11:34am
Forum: E-Bike Build Threads / Photos & Video
Topic: GCinDC's Giant DH Comp
Replies: 2900
Views: 339618

Re: GCinDC's Giant DH Comp

Our prime minister solve the traffic problem with almost 10 dollar per gallon .... traffic always good in greece 8) i guess that's one way to do it. there was plenty of traffic when i was there in '99, riding here on the back of my cousin's bike (which also gives a clue how i learned to ride...): I...
by tostino
Sep 11 2012 8:41pm
Forum: General Discussion
Topic: Replacing an alternator with a brush-less motor
Replies: 19
Views: 1620

Re: Replacing an alternator with a brush-less motor

And on that note, the little 75kw (at it's very best) ICE my car has could see a noticeable increase with quite a bit less power.
by tostino
Sep 11 2012 8:09am
Forum: General Discussion
Topic: Replacing an alternator with a brush-less motor
Replies: 19
Views: 1620

Re: Replacing an alternator with a brush-less motor

I really have no idea what motor i'd go for, but I was planning on putting a thumb throttle type device on my steering wheel. It doesn't have to be all or nothing. This will hopefully increase power greatly, and also increase mpg if I so chose to use it for efficiency instead doing 10x more hard sta...
by tostino
Sep 10 2012 2:50pm
Forum: General Discussion
Topic: Replacing an alternator with a brush-less motor
Replies: 19
Views: 1620

Re: Replacing an alternator with a brush-less motor

That was actually the exact same idea I had come up with for my 96 Corolla. I was wanting to leave the existing alternator in tact, and just add an additional motor + pulley to help with acceleration. I was planning on using one of the 36 fet infinion's i'm building up for it (and the other one on m...
by tostino
Sep 06 2012 12:47pm
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

I picked up some of these for trying to clamp. I'll see when they come in how they work.
by tostino
Sep 04 2012 7:33am
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

So you were horseless since the accident ?! That bitch. i pray for you my child that no fet pops on you, coz then it's gonna be a mess replacing any fet, aspecialy if 1 pops on high side. i usually k.i.s.s thermal paste & screw mount my heatsinks. Completely and utterly (electric) horseless =(. I s...
by tostino
Sep 04 2012 7:27am
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

Figure something else out instead of zip ties and make sure you have some sort of isolator between the blocks in case they move. What are you using to electrically isolate each phase to the water block on the back? I'd probably use nylon nuts and bolts myself. Bigger is stronger. I am using kapton ...
by tostino
Sep 03 2012 2:41pm
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

Well, zip ties are what I had available. So here is my progress.

I think i'll put a dab of epoxy in between the fet blocks to keep them from moving around and touching.
by tostino
Sep 03 2012 11:54am
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

Buy a sheet of good electrical insulating material, make sure both surfaces are flat, drill several holes and attach each with many nylon screws or regular screws run through some sort of plastic sleeve. I've used nylon screws in several of my controllers to attach fets to the heat sink with no iss...
by tostino
Sep 02 2012 10:33am
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

Some more progress today. Coming along pretty smoothly if I do say so myself!

Anyone have any ideas on how to attach these individual phase heatsinks to the larger heatsinks?
by tostino
Sep 02 2012 2:16am
Forum: Forum Rules and Features
Topic: Endless-sphere App?
Replies: 57
Views: 11462

Re: ES Mobile app - make easier for mobile users

I'd say that if tapatalk gives too many permissions,the best option is to have another theme available which fits mobile browsers a little better. I get by with my nexus one on the forums, its just a kind of painful experience.
by tostino
Sep 01 2012 11:51pm
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

Awesome info! Thanks. At the time I purchased these, no one had a working one. So it is pretty cool to get some real-world numbers. I just remember through some calculations that at a 50% duty cycle, and 400 phase amps, I would be generating a combined 1550w of heat between the high side and low sid...
by tostino
Sep 01 2012 10:06pm
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

Looks like the fets are all good still after soldering. They measure 400 mv.
by tostino
Sep 01 2012 7:53pm
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

Got it. I want to build one f these. What power do you think it'll take with cooling? 25kW? I do believe it'll do 25kw in short bursts, probably not continuous. Like I said before, I really should be using 4110's for what i'm doing now, but I don't have any, and instead I have 4115's. So that sever...
by tostino
Sep 01 2012 7:32pm
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

Just to be sure: You're going to electrically insulate the groups of FETs for each phase from each other, right? ;) Thank you! I didn't know that it was that easy to test. I'll do that asap. Just to be sure: You're going to electrically insulate the groups of FETs for each phase from each other, ri...
by tostino
Sep 01 2012 4:49pm
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

Great, I love it! I may try something like that myself. Though I would prefer Oil... Any specific reasons why you want to play with water? Water is pretty easy to work with... Lots of cheap parts that work reliably for computer water cooling. Also holds more thermal mass for the volume that oil if ...
by tostino
Sep 01 2012 4:47pm
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Re: Tostino's water cooled 36 fet infinion

I thought the thermal pad on the back was also the drain or source of the fet.. Which is why we put insulators behind the FETs... Is this not the case with 4115s? Check continuity. You may need to cut that bar into sections The 4115's are like any other fet. The difference is the layout of the 36 f...
by tostino
Sep 01 2012 2:09pm
Forum: E-Bike Technical
Topic: Tostino's water cooled 36 fet infinion
Replies: 54
Views: 4589

Tostino's water cooled 36 fet infinion

Hello all! It's been forever since I've been around these parts. Mostly to do with when I had an accident with my old bike, got hit by a lady in a mustang who turned right into me. Had to have knee surgery, bike was totaled (motor had shorted phases, controller blew because of it, frame bent, CA cru...