Endless Sphere

Step one of the models done:





Now it is time to start rounding edges..

Looks like a "far driver"
viewtopic.php?f=30&t=112177

If you have a bms that you can turn off, then the negative switch is defiantly not necessary. I dont know if I should bother with double switches either way. However, I would probably put some sort if pre charge circuit in there. The bms might be able to handle that part. But if you want to take the...

Thanks for allowing me into the forum. After skimming many posts I have not yet found if the R4850G2 can be modified to go beyond 58V. Actually I need 65V (or 67V) to charge my 16S - 600A lithium pack. If it can't, my plan is to use 48V setting and a number of CC boost converters. The drawback here...

Based on what I have read, I am under the impression that one benefit of using a BMS is that I can run the output of an appropriately rated power supply into the charging jack of the battery case and then the BMS will monitor the charging and handle the balance charging to top off the pack. Is this...

Check at the right riding height, but also test the whole range by taking off the spring. The motor should probably sit lower than you might think, on the ktm I have more wear on the underside on the chain guide than the upside. But it is just at the pivot point, so it is probably from when the susp...

Well, I wouldn't do it again now when the v3 of the qs 138 70h with built in gear reduction is available. If I started over with this build I would probably go with that on this one too. It would save a lot of time, money and weight. And I think hit with a big enough stick (high A and V) it would pr...

louis raaijmakers wrote: ↑

Nov 15 2021 8:35am

brilliant build!

after reading this tread i am going to back that idea off

Thank you
But why dont you want to build a dirtbike after reading this thread?

L.E.S wrote: ↑

Nov 15 2021 10:08pm

Also random question but are you using jackshafts on both of your bikes?

No, not on the ktm.

start voltage is the voltage where you want the motor to start.
"End of the" is where you want full throttle to happen.

Measure the voltage from your throttle and determine at what voltage you want it to start.

Any reason why not some type of foam? or is it the obvious that it is quicker using materials nearby? (or maybe a kink for hot glue) :lol: Thank you, I haven't really looked in to how to use foam for something like this. And I don't hove any experience in it. I have seen it used when a guy made his...

Hi Just found this forum and this thread. This build looks awesome! I'm in the fantasy/planning stage of a (prototype) build of my own so just trying to learn stuff and see what engines/batterys/controllers you guys are using. I'm located some 120km northwest of you so if possible I would really ap...

There hasn't been a lot of riding after the accident. First there was a few weeks for healing. I fixed the bike and we rode once. It was a little scary at first, but it was ok after a little while. But then I got sick and we had a break again. We were supposed to ride this weekend, but now my friend...

If I added some LiPo’s to the current battery as J bjork has suggested would I still use the one BMS? You have a few options in how to do it. 1: You can use the lipos in parallel with your battery, with no bms on the lipos and the bms you already have on the battery you already have. Then you wont b...

I only know about using an ixxat (or what it is called) can adapter and dvt software. You need a license for the dvt, but it is the can adapter that is expensive. I think you can keep the rest of the settings, and just change the ones you want. But it depends of if zero has a password protection or ...

You should be able to run the controllers in master/slave mode, at least if they are sevcon gen 4.

Time to make some more fiberglass parts while I'm trying to find someone to make my shaft :? I started with the top, in front of the seat. After some tries I settled on a design: https://i.imgur.com/hTHUJad.jpg Something like this, now on to a endless filling and sanding. This is how it ended up: ht...

I dont really see the point of buying re wrapped cells. They are usually either a quality cell that are a little more expensive than the original, or just any cheap cell re wrapped. They can of course change at anytime. I checked mooch reviews, but it seems like he hasn't tested this cell. The close...

Has nobody set up 3D tables for IPM motors?

Turn off HDC and test.
And read the votol thread before you make changes to the right flux settings.

Quick question for: does your version of the QS180 have an encoder or hall sensor? QS just told me that my Qs180 will use an encoder. It is encorder. Do you mean that my early model with 3 digital outputs have the same encoder as the new model? So in that case it is 3 digital outputs on the new mod...

My motor has 3 digital signals, like from hall sensors. So I guess that is what it is. I saw that comment in the qs sales thread and wondered what it meant exactly. Do you know if it is supposed to be an analog encoder with sin and cos signals? They seem to use a fardriver controller, but I havent s...

The motor will probably be capable of a lot more. The question is more what winding it is, if it is limited to 50km/h with a 72V battery it might be a very slow winding. If it isn't I think you will come a long way with a controller upgrade and a battery that can deliver. It looks like a short wheel...

This is an amazing build you have here ! Can you please share your build in Electric Motorcycle Builds Facebook group. :bigthumb: https://www.facebook.com/groups/electricmotorcyclebuilds Thank you, but I will pass on facebook. I dont see the point, just a flow with a mess of different builds. How d...

It looks like you are really trying to fry that poor little motor now
Is there a specific reason why you got an ATP instead of a far driver for example?

Here is the thread for votol:
viewtopic.php?f=7&t=95969