Endless Sphere

I've bought gas 3 times in the last 8 years or so, with luck that number might never rise.
Two for other folks who were kind enough to give me rides, and once for a rented RV.

I'm seeing $7/gal for premium in SoCal.

Blessings for the quality of the precious air we all share being fiscally discouraged from needless fouling.

Even the best CVT just takes motor shaft power and wastes some of it as heat. It's easy enough to size the motor to give you the desired torque across the desired RPM range. Everything you need to add in series after your motor just means you need to re-choose a motor better suited for the applicati...

Worked with the ElectroBrapp guys yesterday and got the controller settings dialed in. 6500 rpms, instant power, (in the video it had soft start) and will hit the motors full power of 33ft\lbs of torque. If the motor can reach 6500rpms the impeller will be spinning around 9100rpms. First video I ha...

The thing is, I've now done enough days of dyno testing EVs to realize, any/all mass given towards a multi-speed transmission is instead re-applied towards making the motor stator iron and copper and magnets larger, the end result is higher continous power delivery and efficiency, simplicity, longev...

I miss Mr Thud too! What a heck of a guy, racer, and great builder.
Character of a guy, I hope to race with him again someday.

Wow my friend! That's some first class bruising! Excellent rainbow of skin colors and bruise area.
You're a fun guy, try to keep those wheels rubber-side down for me.

Beautiful moto builds. Glad you're not hurt from the wreck, bet you're glad you had that scratched up full face on. Great use of the printer to make your molds for CF parts.

May I ask...what method do you use to discharge cells, measure discharge, and measure shell temperature? For some tests, a pair of BK Precision 8601 Electronic Loads and the temperature sensing described below. For these tests…calibrated West Mountain Radio CBA Pro IV Battery Analyzer modified for ...

Fantastic impedance, thanks for sharing Mooch. I've always appreciated your work.

Nice kart! I see a lot of ET to be dropped in shorter gearing my friend.

Can you share the 60ft, 330ft, and 1/8th?

Possible to show a vid that is visible to non-facebookers?

I have also sealed the phase cable ends with silicone to avoid that moisture comes inside that way. The sidecovers are sealed with high temp silicone and also the wire channel through the axle is sealed with silicone from both sides. I run the motor quite hot. Thermal foldback is not applied before...

Not to be nitpicking, but LTO, LFP, are just variations or Lion (lithium ion) batts. LTO can and often does use the same NCM/NCA cathodes, replaces the lithiated graphite of the anode with lithiated titante (TiO2). LFP is it's own cathode replacing NCA/NCM from being in a cell, but uses the same lit...

One more aspect. Gore vents do stop condensed liquid and liquid droplets, but they pass (in or out) humidity preferentially to air (N2 O2), because H2O is a smaller lighter, faster moving and polar vapor molecule. I don't see any risk of the humotor not having plenty of gas exchange no matter the ef...

When I think again about it, I am not sure if it really makes sense. Wouldn't a (sealed) hub motor only suck air+moisture inside when the inside temperature is lower than the outside temperature? Normally the inside temperature would almost always be higher than the ambient temperature. Everything ...

I was just thinking of how many grins you leave on the table not being able to ride far with such low wh, but since you can now ride 20 miles its probably night and day for you. There are many grins :mrgreen: coming your way Curtis If he stabilizes chaffing from cell relative motion in the assembly...

When I go to the Rivian site and do the vehicle build, it generally comes out around $86k. If people really get deliveries for that price, I don't think its fair to call it a $100+k vehicle just because people with early deliveries are choosing to resale in attempts to make 150-200% easy profit to a...

I took some pictures in Paris of a guy on an ebike pulling a custom trailer that had extra ebike packs onboard powering a set of scooter chargers. I love the idea. I like scooter/ebike charge docks too.

I see a Rivian pickup at least once a day in SoCal. I do see at least a hundred Teslas for each Rivian, but they must have delivered quite a lot of them to see as many as I do.

I've been really impressed with that style of interconnect for prismatics. Great joint strength that tears the bus bar metal apart trying to remove it (unless you hole-saw from above right on the weld nugget area).

That prismatic looks like its got both terminals aluminum, very convenient.

Ive made this mistake, its only fixed by making both sides sprockets larger in diameter is the way to make your chain more quiet. The link below shows the effect of tooth count vs chain vibration. It looks like you have room to package 2x the number of teeth at least, doing that will knock out most ...

Glad to see you back, sir! I'm glad to report that I've yet to have a single wheel build come back for repair in all these years. Amazing. I have seen a few with my name on the rim tape, but they were pedicab wheels that had been flogged without mercy. Sure would be nice if someone decided to pick ...

Gigavac gx14 is a great option.