Search found 600 matches

by DanGT86
Jun 12 2019 12:33pm
Forum: Items for Sale - Used
Topic: 7x VESC vedder controller + 11x 3,5kw skateboard motors for sale (Added 55KW motors and controllers first page)
Replies: 20
Views: 593

Re: 7x VESC vedder controller + 11x 3,5kw skateboard motors for sale (Added 55KW motors and controllers first page)

Im not up on my VESC trivia. Can these be updated to the latest firmware such that it would be functionally equivalent to a VESC 4?
by DanGT86
Jun 02 2019 1:53pm
Forum: E-Bike Non-hub Motor Drives
Topic: 2019 ditch your rear disc brake ?
Replies: 40
Views: 1101

Re: 2019 ditch your rear disc brake ?

I agree that chain retention is easier with non shifting standard teeth and singlespeed chain. The issue I keep bringing up about tensioners and chain management is based on the design of full suspension mountain bikes. Many common frames are not single pivot. On the above mentioned supermoto applic...
by DanGT86
Jun 02 2019 10:04am
Forum: E-Bike Non-hub Motor Drives
Topic: 2019 ditch your rear disc brake ?
Replies: 40
Views: 1101

Re: 2019 ditch your rear disc brake ?

Using the rear brake extends your stopping distance. The hardest you can stop is with the rear wheel just above the ground. Not challenging that statement but am genuinely curious about your source material. Do have any links or articles explaining it? Seems totally reasonable that the max braking ...
by DanGT86
Jun 01 2019 8:28am
Forum: E-Bike Non-hub Motor Drives
Topic: 2019 ditch your rear disc brake ?
Replies: 40
Views: 1101

Re: 2019 ditch your rear disc brake ?

Nobody said you couldn't lock up wheels up with regen. In a nutshell, the same way ICE unconsciously encourages you to speed away from a green light. Regen, encourages you to prepare, slow down, and engage a corner half a mile away. You have NO clue. With ASI controller and left hand domino regen t...
by DanGT86
Jun 01 2019 12:06am
Forum: E-Bike Non-hub Motor Drives
Topic: 2019 ditch your rear disc brake ?
Replies: 40
Views: 1101

Re: 2019 ditch your rear disc brake ?

I have not ridden a bike with variable regen but I have serious doubts about riding without a mechanical lever actuated rear brake for a variety of reasons: I like the modulation of regular brakes and the ability to lock up the wheel for trials type riding. If high end variable regen matches modulat...
by DanGT86
May 18 2019 9:14am
Forum: E-Bike Build Threads / Photos & Video
Topic: DH Comp Rotomax Mid drive
Replies: 11
Views: 861

Re: DH Comp Rotomax Mid drive

Nice plan and work so far. Controllers for these large RC motors have proven challenging for bike use so far which is why you don't see a whole lot of them run to full potential. Looks like a nice compact mounting solution. Have you given any thought to using the swing-arm pivot as the jackshaft loc...
by DanGT86
May 17 2019 9:13am
Forum: E-Bike Non-hub Motor Drives
Topic: Left side freewheeling cog with rotor
Replies: 18
Views: 585

Re: Left side freewheeling cog with rotor

Is there a standard thread-on bike Freewheel in there? If so, is the innermost circle of 8 bolts smaller than the minor diameter of the Freewheel threads so they can pass through to the hub? Its hard to see what is going on there? Are you keeping it secret? :wink:
by DanGT86
May 16 2019 12:41pm
Forum: Items for Sale - New
Topic: Assembled Hi-Power LiPo battery packs - any interest?
Replies: 553
Views: 98463

Re: Assembled Hi-Power LiPo battery packs - any interest?

I love the "Heavy" sticker as if a pallet of anything that size would be tempting for a person to lift by themselves. :lol:
by DanGT86
Apr 19 2019 8:00am
Forum: E-Bike Non-hub Motor Drives
Topic: Water Cooled Motor
Replies: 1
Views: 181

Re: Water Cooled Motor

There a quite a few watercooled small motor options on the market. Alien power systems offers watercooled versions of the more common ebike rc motors. The design considerations for use on a bike are always the same: does the cost weight and complexity of plumbing and radiator end up diminishing the ...
by DanGT86
Apr 08 2019 12:19pm
Forum: E-Vehicles General Discussion
Topic: Votol EM-100 & EM-150 controllers
Replies: 79
Views: 6384

Re: Votol EM-100 & EM-150 controllers

Nice! They are quietly hanging on to some cool tech over there at QS. I tried inquiring about the 7kw and 10kw mid-drive motors but they wouldn't give up any info. Considering the short burst power of the 3kw motor I think a 7kw matched to one of these EM300's would be about perfect for full sized m...
by DanGT86
Apr 07 2019 11:54am
Forum: Motor Technology
Topic: QS 3000w midmotor
Replies: 224
Views: 17335

Re: QS 3000w midmotor

Are you planning on offering the BAC4000 with a profile program for this motor?
by DanGT86
Apr 04 2019 7:53pm
Forum: E-Vehicles General Discussion
Topic: Votol EM-100 & EM-150 controllers
Replies: 79
Views: 6384

Re: Votol EM-100 & EM-150 controllers

Does anyone know the maximum safe pack voltage for the Votol EM-150? There is a screenshot from the software that shows a drop down menu with options 48,60,72,84,96v. Those are common nominal pack sizes but does anyone know the absolute safe upper voltage?
by DanGT86
Apr 01 2019 9:21am
Forum: Motor Technology
Topic: QS 3000w midmotor
Replies: 224
Views: 17335

Re: QS 3000w midmotor

What is the belt profile for the pulley that comes on this motor? Is it something common like 8mm Gates GT? They are offering it with a splined output shaft for motorcycle sprockets as well? Does anyone happen to know if these are common spline sizes that would be interchangable with common dirt bik...
by DanGT86
Mar 30 2019 4:20pm
Forum: Items for Sale - New
Topic: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China
Replies: 1209
Views: 202688

Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

What spline size is on the shaft/axle? Looks like it is interchangeable with common motorcycle sprockets but I would like to know which ones?

When will information be available on the 7kw and 10kw mid-drive motors.
by DanGT86
Mar 30 2019 11:55am
Forum: Items for Sale - New
Topic: DENZEL electric dirt bike on Indiegogo. Just launched
Replies: 64
Views: 5943

Re: DENZEL electric dirt bike on Indiegogo. Just launched

Will be interesting to see how well that thing holds up to electric motor torque. I think step one should be machining an adapter to relocate that motor above the gearbox with a belt or chain connecting the two. That assembly looks super wide. :wink: I might have missed it but which motor is that? I...
by DanGT86
Mar 19 2019 12:18pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: how to program a sevcon gen4
Replies: 180
Views: 58066

Re: how to program a sevcon gen4

I suspect this will be a tough question to answer since there are so many experts on here with different opinions of "good enough" but I'll ask anyway. Is it possible to get a sevcon and a motor like an ME1507 purchased together as a kit and have it just work out of the box? Most of the vendors I've...
by DanGT86
Mar 08 2019 8:47am
Forum: Items for Sale - New
Topic: LMX motors 1200, 3100W continuous
Replies: 7
Views: 936

Re: LMX motors 1200, 3100W continuous

Can you estimate what the total price would be for the small motor shipped to the US?

What is the kv of the small motor?
by DanGT86
Feb 23 2019 1:01pm
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 144
Views: 19606

Re: New build, BHT mid-drive "direct", custom frame

Are you monitoring temps inside the motor? By the time the heat soaks through to the case it could be way too late for the windings.

Great job on the bike build by the way!
by DanGT86
Feb 08 2019 10:20am
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 490
Views: 42831

Re: Nucular electronics - complete kit for ev! [beta]

So is an extra 6FET $50 cheaper than the first?
by DanGT86
Feb 08 2019 9:06am
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 490
Views: 42831

Re: Nucular electronics - complete kit for ev! [beta]

Is the cost for multiple controllers always $100 cheaper than the initial cost of the first or is that just for the 12fet?

Do all the controllers work in tandem?
by DanGT86
Feb 02 2019 11:20pm
Forum: E-Bike Non-hub Motor Drives
Topic: Single speed ebike build
Replies: 26
Views: 3551

Re: Single speed ebike build

The watt ratings in all if these parts are suggestions not absolute limits. You can run a 250watt motor at 2500 watts but it will get hot right away. If you keep a motor cool and its wires are thick enough there really isnt a true limit to rate the power at within reason. If your motor is 250 watts ...
by DanGT86
Jan 27 2019 11:36pm
Forum: Motor Technology
Topic: Revolt RV-series motor review and comparisons
Replies: 191
Views: 10343

Re: Revolt RV-series motor review and comparisons

What is this "good solder" you mentioned when you were working with the tiny halls?
by DanGT86
Jan 27 2019 2:23pm
Forum: Motor Technology
Topic: Adding halls to BLDC motors
Replies: 98
Views: 9411

Re: Adding halls to BLDC motors

Looks like the whole 5v bus is 4.33 everywhere I check. I rebuilt the hall connector with fresh pins and good crimps. That one hall in question wont read a good signal with the scope in auto. The other 2 will. When I manually set the time in the scope they all read nice and clean with the caps. I'm ...
by DanGT86
Jan 27 2019 10:19am
Forum: Items for Sale - New
Topic: brake hub
Replies: 3
Views: 465

Re: Twin / double / two brake hub

Hard to see it clearly but it appears there are 3 spoke holes per every brake rotor screw hole. Based on that it would have to be 36.

That also assumes the pic is for the actual product.

What is the distance between the spoke flanges?

Is there any shipping option to the US?
by DanGT86
Jan 26 2019 12:17pm
Forum: Motor Technology
Topic: Adding halls to BLDC motors
Replies: 98
Views: 9411

Re: Adding halls to BLDC motors

Caps worked out well. In my original test a few posts back I had the leads reversed at the meter so my noise was in fact in the off state. :oops: If the controller threshold is .8v then I can see where this noise was easily getting there. I started with just one cap from the pos to neg feed shared b...