Endless Sphere

very nice build! excellent workmanship. but please put it up on some kind of gallery. i'd love to view all your pics but it's too slow to click one by one

btw i'm also working on a very similar build.

- battery packs got moved up slightly
- slightly longer swingarm

still need to redo my saddle struts and paint the frame bright yellow/green like the decal on the fork. swingarm and struts would be silver or gray

the parameters set right makes sense, because I did forget to mention the motor gets hot under normal riding (just cruising around) I thought that was a red flag. but I never touch flux weakening or anything, but I did adjust my throttle min and max because I had a dead band at beginning. I measure...

larsb, the flux weakening values are very unpredictable. for example i can see in the "display" tab that mid is selected but when i change the fw values for the sport mode the motor RPM changes another example, if i put zeros on all the fw fields the motor will turn very slowly like 200 or 300 rpm. ...

hi I saw you posted posted you got the low brake to work? what is the difference between that and the high brake? I have the purple wire(high brake) going to my brake switch along with a 12v wire. this is how I was told the regen works. the only issue I have is when I let off the throttle my engine...

this is a 1.2 x 17 rim. 680 grams only

tire is 2.5 x 17 knobby. 2000 grams

sorry no links. local shop

finally figured out how to get regen brake using the low-brake wire (gray/black) momentary switch to ground (black wire)

this controller is such a pain. documentation sucks

i think i'll copy this. seems to be both a chain guide and a tensioner

IMG_20200515_101550.jpg IMG_20200515_101811.jpg HTB1b0.pkaagSKJjy0Fcq6AZeVXaL.jpg so here's the complete frame w/ the motor mount. 8.48kg weight. not that much heavier than the surron's but not exactly a fair comparison. the surron saddle subframe seems to be included in that weight figure. but sti...

Looking good man! Are you going to run a tensioner now? Is that the Pirelli vintage dirt bike moped tires 17"? i think i just bought two of those That QS motor doesn't look so huge now that its in the frame, a few other threads are using these motors in actual dirt bikes that are likely 100lbs heav...

alignment seems ok

i just counted the chain. by serendipity it's exactly 130 links! so this means two things: 1) no need to cut, i simply buy a 130L chain. 2) i don't have to buy 140L chains which are rarer

skeetab5780 wrote: ↑

May 06 2020 8:21am

WHY oh WHY am i so good at overheating motors!

Looking good, Can I ask why you are not running the motor concentric to the pivot anymore? Was there an issue with it or something else? Thanks well the old motor (BHT) was small enough to fit between the pivots. it was an attempt at compartmentalization so i could treat the drivetrain+swingarm as ...

swingarm alignment seems good as per eyeball

by sheer coincidence the motor sits almost exactly flush w/ the side of the frame!

nice work! will be watching this thread...

btw you'll be using this GNG motor?

Great progress! I'm curious about which method you use to bend tubes. And the tube notching is perfect how you did it? IMG_20200502_124210.jpg IMG_20200502_124149.jpg thanks to the lockdown the shop that does my bending is closed. so here's another covid mini project. extremely simple bender. just ...

so i decided to copy LMX's instead of the kuberg...

my city is on lockdown so the CNC plasma shop is closed. so all parts cut by hand

Sub'd again these new QS motors are looking pretty hefty, curious how it does on this bike since mine weighs similar got high hopes for this motor. it'll probably be the "final" motor for this frame :lol: just got the frame extended at the bottom. needed butt welds (which i'm not a fan of) on both ...

sqbatt.jpg thanks but tbh i did make a lot of compromises for the sake of simplicity e.g. my 17s6p rectangular battery is arranged 17x6 which puts the weight high and forward (this can be felt while riding). a squarer pack would fix this relatively minor issue at the expense of a lot less elegant s...

useful excel tool: https://www.datamc.org/data-acquisition ... -geometry/





so by moving the motor downwards by 31mm an anti-squat of close to 100% can be achieved at 33% sag

so there's the new motor side-by-side w/ the BHT...

here's the problem. if i don't mod the frame the chain pull angle doesn't look too good for anti-squat so i went ahead and cut the frame to mount the motor lower

Out of interest. What was your Flux weakening setting ?? will check later @overclocker: where did you buy from? qs-motor or SIA/Ecosys qsmotor (www.cnqsmotor.com)? whichever it was, seems their delivery is worse than i've experienced aren't those 2 the same company? here in philippines importations...

http://i.imgur.com/n20LyC6.jpg this is what i used to fluxcore that frame. not exactly the cheapest model as it's MIG-capable (has gas inlet and outputs DC). i probably wouldn't recommend the harbor freight model that does AC-only and only has 2 heat settings (high and low) to weld up the critical ...

Yes, I’ve had my controller at 50V undervoltage setting when i tried to find root cause to cutouts i had at the time. thanks! finally got my controller. seems to accept 50v but i hope there's no weird LVC issues at those low voltages it's annoying that it's in park mode out of the box :roll: so i h...