Endless Sphere

but i neglected to discuss how to release the pressure. you could just pierce the rubber plug w/ a hypodermic needle (which is how they charge it in the factory)

Sean9002, i think it lost pressure, which kept the rebound needle from backing off the orifice, thus the super slow rebound. full diagnosis soon trazor, sure. actually i haven't filled it w/ oil yet, that's the messy part. will make a video soon. btw what's your complete frame weight without shock a...

i picked 1.8mm wall thickness because thinner is very difficult to weld w/ my 0.9mm fluxcore wire, at least w/ the machine i have. anyway i just picked up a co2 tank. let's see if i could weld 1.3mm wall w/ MIG. i could probably get away w/ using thinner wall for the saddle bracket https://i.imgur.c...

Chambers wrote: ↑

Feb 05 2019 3:15am

Should be plenty strong mate - I was just curious

you really think so? because i really don't have an idea

Awesome build! Apologies if I missed it, Is the whole frame water pipe? Or just the head-tube? If not what tubing have you used? Thanks head tube is galvanized water pipe :lol: but dipped in hydrochloric acid to remove the zinc (not good to weld zinc) the smaller tubes are 1/2" nominal ERW. actual ...

nice work :thumb: As a small hint in terms of form stability of the frame, i would weld something like the "X" as done on LMX frames near the head tube to make it stiffer. And i also would weld another tube between motor and battery to have upper and lower tubes connected. https://i.imgur.com/m2Af0...

this is actually my first time to notch so i'm surprised that it worked as well as it did :lol: maybe you just have to compensate for the thickness of the pipe. the template generated is really for a theoretical zero-thickness pipe. https://i.imgur.com/IVHKf7j.jpg "footpegs". cheap VP Components ped...

i'm now getting half-decent results w/ flux-core wire but i wanna try MIG. is it that much better?

specifically i'm getting tired of the cleanup needed w/ flux-core. and the smoke

very nice fab skills! is that MIG welding?

btw i'm just a bit concerned about the strength of the swingarm since you cut holes in it (red arrow). this weakens the rectangular tube. maybe you could weld a circular "cap" over the hole to strengthen it

Great progress! I'm curious about which method you use to bend tubes. And the tube notching is perfect how you did it? there's a machine shop very close to my house about 1 block away. i just print an actual size template of the bends and he does them on the steel pipe using a manual pipe bender w/...

mid-drives EAT drivetrains. over thousands of kilometers riding different mid-drives i've ruined many cassettes, chains, derailleurs, derailleur hangers, etc. so now i use only the cheapest 8spd components

3p shouldn't take long to balance. and if you built it well and if the cells are all from the same batch you don't even have to balance for like a year

.15mm nickel tabs spot welded to the A123. then 10ga stranded copper wire soldered on top. i guess the little spot welds create a bottleneck. but right now i can't think of a better way, without soldering directly onto the A123 That looks like what I was thinking originally. Obviously you were able...

check out my method. pre-fluxed btw:










i guess soldering is ok if done fast. but i don't do it anymore because spot welding is easier.

https://i.imgur.com/TyPSaZn.jpg 4s2p anr26650m1a. sufficient to jump my cars a honda fit and a ford ecosport, both 1.5L engines .15mm nickel tabs spot welded to the A123. then 10ga stranded copper wire soldered on top. i guess the little spot welds create a bottleneck. but right now i can't think o...

you don't really need to have the QR-type 20mm axle. the pinch bolts you have now were orginally small QR levers if i'm not mistaken. so you simply need a plain 20mm axle of the correct length (it'll still have a bolt at the end to press everything together). then the pinch bolts will clamp onto the...

if not glued it's possible for cells to chafe through (due to vibration) the very thin PVC sleeves and short.

for added protection i like putting a layer of kapton tape between opposing parallel groups, then bonding w/ silicone sealant

what kind of power are you running? 428 is rather heavy...

e.g. the sur-ron uses 420

i've done experiments here: https://endless-sphere.com/forums/viewtopic.php?t=83141 the GA's need to be discharged to 2.5v to get the most out of them. can your lipos go this low? if not then this isn't a good plan then what'll happen is the lipos will contribute more in the beginning. but as the li...

30qm. "m" means malaysia

should have a stamped code there. you need to peel off a bit to see it

"pre 2016". hmmm... those had controller issues, right?