Endless Sphere

Since the extra capacity is not going to kill your weight budget why not go for a pack that doesn't get worked quite so hard. Sure the cells can handle 20C but doing that often will greatly reduce the lifespan. Make the 15 kg pack into two parts and it would be easy enough for someone to carry one m...

It is strange to hear about these wind farms having problems in the cold.

There are a ton running in Canada and they seem to do just fine in the winters here.

Do we have to order the preassembled kit to get the picture of samuel jackson on the back? Shaman on here is the one who did the design and the SLJ artwork. https://endless-sphere.com/forums/memberlist.php?mode=viewprofile&u=62507 It is actually pretty good practice for hand soldering a combo o...

I do and plan on ordering more once these are sold.

Still have a few of these left.

I have one I am no longer using.

It is missing the gravity spring.

Time to sell some Cheap FOCER 2 V1.0's For more details here is the development thread for this VESC6 compatible electronic speed controller. It was developed buy a member here. https://endless-sphere.com/forums/viewtopic.php?f=30&t=103465 https://forum.esk8.news/t/cheap-focer-2-open-source-low-...

Do you have a detailed W&B from the original builder? If you need a copy of the sheet to do the math I have the forms from the factory. There is a lot of dead weight on the front end of a Moni since it was originally intended for a larger motor. The ballast in mine weighs more than the motor and...

There are plenty intended for R/C motor and prop selection that will do the trick.

You could just measure the current thrust and that gives you a starting point.

One thing you will need to take into account is the thrust available at the speed you climb at. A paramotor is all about static thrust but a glider will be moving quite a bit faster while climbing.

You should look at some of the electric paramotor drives people have worked out.

They have similar prop size constraints and power requirements.

https://openppg.com/shop/paramotors/openppg-sp140/

Other than the seating position the GOAT and Lazair are very different airframes built using different methods.

Munro claims the new Tesla battery will reduce the battery weight in half. Half the empty weight of this aircraft is still to much to allow it to fly. This is a conversion it is not a new build. The power system has to work with the weight and balance as is. Luckily the original airframe had a larg...

40 kwhr of batteries would weigh more than the empty weight of this aircraft.

Have fun with that. Hope you have some automated welder to do 12000 spot welds. I am using volt cells as I need power density rather than energy density. I want a pack that is as light as possible to fit the existing airframe while being able to handle the peak power demands. Climb power is more imp...

That is some really shitty news to hear. I helped him with the instrument panel.

Two-strokes are not great power plants for aircraft.

Shouldn't be too difficult welding 18650s with a tack welder? And using those plastic brackets to form the grids? Not that I have built this, but am planning to build. Let me know when you are ready to build a pack with 900 individual cells. Probably just going to buy a complete Chevy volt pack and...

amberwolf wrote: ↑

May 12 2020 4:08pm

EIG NMC cells?

These are the prime candidate currently. Making a pack out of 900+ cells didn't really sound appealing.

I'm still working on an EV conversion of a single seat motorglider. https://endless-sphere.com/forums/viewtopic.php?f=38&t=89000 Got a motor and ESC but am still working on a battery. A Zero motorcycle battery would probably be perfect but there are not many in Canada so not many available on th...

Curious to see how people are building packs with these since the positive terminal is lower than the negative ring surrounding it?

Might be interested in a several kwhr of them but have to figure out pack assembly and how to get them here.

There is real irony of an electric airplane being converted to gas but good on you for building something, testing it and realising that it doesn't match your use case.

Got any plans for the electric drive train?

StinkyGoalieGuy wrote: ↑

May 29 2019 11:22pm

Very nice. So do you run the two packs in series? Do you use any kind of diode to isolate them in case the BMS trips on one of the batteries?

Missed this one.

No diode because they are in series. And they do not have a conventional BMS only a basic cell balancer.

silentflight wrote: ↑

May 30 2019 1:18pm

Maybe it was a type of nylon?

I used ABS. It is a pretty common material on bikes.

cheapcookie wrote: ↑

May 30 2019 1:22pm

Nice, have you tried 3d printed ryobi/makita/milwaukee adapters ?

The Waitley adaptor will also accept Milwaukee M18 as well as the dewalt packs.

Decided to update my bicycle for this riding season. The bike is an old Miele road bike that has been upgraded over the years. The update consisted of removing a Kepler friction drive and replacing it with a Bafang BBS01. For a power source I wanted to use a pair of 5 Ah Dewalt 20 volt packs. The mi...

I was always impressed by this setup at Oshkosh.

Outperforms just bout everything on the field. It is unfortunate that Zero's lawyers made it difficult for the designer to offer it as a ready to go kit.