Power in Flux

What's on your mind?


Live Feed

Richard230 clicked Likes for this post: Blacksmith, an Indian electric motorcycle by frodus

4 Hours Ago

Warren replied to the thread Electric Harley?.
" The world is truly tiny, and weird. I grew up 7.2 miles from Brooks Stevens house, and museum.


I used to go there to drool over the amazing vehicles in his collection, like this Talbot-Lago, one of 14 made. This is probably the one from the museum, as it is in the US, and I remember the steel airfoil tubing bumpers.


To make an EV connection, notice the door handles that worked like those on the Model 3. You pushed on the fat end to make the handle stick out.

About the time I built my '67 Bonneville cafe racer, and my buddy Dennis had his Sportster, this bike was at the museum. Being lead acid powered, it didn't get me excited then, and I forgot about it, until this piece jogged my memory.


If Ted will permit me to carry on a bit farther with this brain fart. :-) When they closed the one room schoolhouse I first went to, that was half way between Brooks' museum, and my parents' house, they sent us to the new consolidated grade school, in Grafton. My strongest memory from that school was "little Oscar" driving up to the school in the Wienermobile, and doing a magic show in our cafeteria. I just discovered that Stevens designed that too. :-) "

6 Hours Ago

frodus replied to the thread Blacksmith, an Indian electric motorcycle.
" ugh "

9 Hours Ago

flo replied to the thread Sachs xtc 125 conversion.
" HI
after having too much trouble with the tiny 1mm trunches in 3 mm aluminium i changed to 1,5mm thickness material and finally got the "lower bus-bars" made
Instead of doing multible 2s3p connections (that would have to be lined up seperat) i opted for a whole "lineup"
These were then cut halfway through at their holding taps and are glued to the fg base part.
the cuts facing downwards so i can dremel them all the way free without cutting into the fg once cured.
So basically i produced a sort of pcb board with more substance for current carrying and strength.
Guess pics show better than my rumblings.
Will show outcome as soon as glue is dry...

First FG battery box is done too... but that s just a box...


flo "

9 Hours Ago

flo replied to the thread Desktop CNC anyone?.
" Hi
just seen this so i would like to comment.
First off plywood is very good to mill - i mill it basically all day long and have none of those "frizzles" like you. For that you have to get your parameters right and the right mill bits.
Either straight or very little up-spiralling so it won`t pull the layers or cuts/fibers upwards. There is even bits with downwards spirals but i do not recomment them as chip extraction relies strongly on a very good dust collection. Otherwise your cut channels will get clogged and your bit breaks.

Opposed to what been written above i do not recommend a solution that takes the whole g-code aboard. Most machines offering these have limited capabilities and once you start running 3.d files you run into problems. Some of the files i cut ran into 900 000 lines and most of all i want access and reliability in such situations. There are far bigger files out there so this isn`t even outstanding..
But: Simply do not use either parallel board or usb solutions.
Ethernet - like the "smoothstepper Ethernet" is the way to go. It takes the computing away from your pc as well as from your "mach" or whatever you are using and is not restricted in length of wire and not prone to signal loss like the other two options.

I think i have some pics of plywood things i made in the "your other projects" threat. If interested.

Milling aluminium is not that difficult either. Either go for shallow cuts but high speed/feed (bit needs to cut not grind) to keep forces to the machine at bay
and that is what i prefere -
get a capable cam to do trochiodal milling. Look it up on y_tube it is far superior for hobby machines or "weaker" construction in general. Far superior for tool lasting too.
Try ESTL Cam for this, It is cheap and does trochiodal milling.

Pls excuse my english - i am not a native speaker...


flo "

9 Hours Ago

Richard230 created the thread Blacksmith, an Indian electric motorcycle.
" Now here is an electric motorcycle that lives up to its name, at least in looks: https://electricmotorcycles.news/is-...indian-people/ "

12 Hours Ago

furyphoto replied to the thread Desktop CNC anyone?.
" Here's a test cut of my motor mount. Plywood is not the best material for milling (especially a shabby old piece from behind the woodshed), but it will be strong enough for a mock-up on the frame. I have yet to try milling aluminum, so I will need a bit of practice before attacking the actual cut without breaking bits. In the meantime, I will likely fancy up the mount with some finer detail work in CAD.

http://andrewdoran.com/_Services/pro...untTestCut.JPG "

19 Hours Ago

Stevo clicked Likes for this post: Electric Race Kart build by frodus

1 Day Ago

dice23 replied to the thread electrafunk racing.
" Attachment 8165Attachment 8166 been a minute since ive been on here, but heres some more of my leftover used parts still kill'n it "

1 Day Ago

dice23 replied to the thread Ed Gold: Electric Motorcycles.
" i just spoke the truth as I see it...lmfao... and he did not edit anything I said! ahahahaha, but ed gold is a great dude with a crazy history of photo journalism... but he quickly found out how twisted the ev bike world is and the,,,experts,,, involved...lol...no where near the bible ted put together, but interesting all the same! oh yeah, I'm still out here bitches!!! and still faster too! "

1 Day Ago

dice23 clicked Likes for this post: Ed Gold: Electric Motorcycles by Ted Dillard

1 Day Ago

Richard230 created the thread the Hydrogen Highway is not cheap.
" https://insideevs.com/california-app...ging-stations/

I have been watching that station being built for the past 5 years and it still isn't complete. "

2 Days Ago

frodus replied to the thread Electric Race Kart build.
" Customers prior to closing, I can assist with whatever I sold them as a package, just not additional requests.

For the bluetooth project, that's being handled by Sportdevices:

Might ping them to see where it stands, I've not had time lately to work on it. "

2 Days Ago

Stevo replied to the thread Electric Race Kart build.
" I suppose a congrats is in order! I'm hoping you will still be able to assist occasionally with prior customers requests ?
I was also hoping to add the BMS and bluetooth interface to my build soon... If you are not going to move forward with it, maybe I can pick up where you left off?
I'm getting close to the time of pulling the trigger on that big purchase. "

5 Days Ago

frodus replied to the thread Electric Race Kart build.
" So, Things have been kind of hectic.

I wasn't expecting to change careers into the EV world, but I should be starting work with Cascadia Motion, owned by BorgWarner, in the coming weeks. So I'm shutting down my Electro Motive Force, LLC business because of a conflict of interest. There are other places to get this combo though, likely through EVDrive.com.

A few months ago, we worked with EVDrive and built a battery pack for a major Kart manufacturer. They're modifying the chassis some, so we're waiting on that. I'll likely stick with either the 1616 or 1507 motors, and a Size 6 Sevcon. It's just taking a little longer due to the employment situation. "

6 Days Ago

Byte replied to the thread Electric Race Kart build.
" Hi Frodus,

Already for quite some months I was looking onto your website, specifically looking at the ME1507. By coincidence I found your post on this forum and saw that you're the owner of the shop.
I'm looking into going next-level by making a ultra-light electric bicycle with a bunch of power (35+ kW peak performance). I'm a Mechanical Engineer and previously build some very lightweight <15 kW electric bicycles, which are very fun to drive, but I'm looking for more I will probably contact you in a few months as I'm currently working on all the calculations and developing the frame.

I'm very curious to see an update on your build, as your last post was already from about 3 months ago.

Patrick "

6 Days Ago

Nicman clicked Likes for this post: A Proper electric motorcycle by Ted Dillard

6 Days Ago

Ted Dillard created the thread Ed Gold: Electric Motorcycles.
" So Dice chats me up on Facebook and tells me he has this guy who is loving my book, and is putting together his own photo book on electric motorcycles and is wrapping up his interview with Dice, complete with some awesome photography:


Yeah, that's Dice. He got ugly.

I chat with Ed on the phone, nice guy, completely insane, but that comes with the territory. (Writing books? Photography? Traveling the world without a home taking pictures? Your call...) Anyway, since I've got not much to show for my efforts but a book on the shelf and a partially disassembled bike in the back of what used to be my shop and is now a storage container for the makerspace stuff, and he's kind of all about the photos, he elects to forego the trip to Boston and head to Florida. Can't say I blame him.

So a month or maybe 3 go by, and here's his book: https://www.edgold.co.uk/electric-mo...WEqJc2_PqE6tfM

It looks pretty sweet to me - thought I'd share it here... enjoy! "

1 Week Ago

Stevo replied to the thread A Proper electric motorcycle.
" Beautiful! "

1 Week Ago

flo replied to the thread A Proper electric motorcycle.
" Want one!!
perfect bike for my taste... guess one just need to rob a bank first to afford something like this.

Flo "

1 Week Ago