Search found 11 matches

by Dogu-ya
Mar 03 2019 10:08pm
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 211
Views: 36603

Re: AT-One electric inline skates (quick update April 2018)

Small update, Got my old 3d printer out to make some prototypes. Getting the printer repaired, set up and calibrated and printed parts to fit with each other took almost all my time till now. Starting to print a few clutch designs I have for a proof of concept. Hey ! Did you manage to keep working ...
by Dogu-ya
Aug 22 2018 10:56pm
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 211
Views: 36603

Re: AT-One electric inline skates (quick update April 2018)

Small update,

Got my old 3d printer out to make some prototypes.
Getting the printer repaired, set up and calibrated and printed parts to fit with each other took almost all my time till now.

Starting to print a few clutch designs I have for a proof of concept.
by Dogu-ya
Jul 10 2018 10:39pm
Forum: E-Bike Technical
Topic: Question about coaster brake design
Replies: 0
Views: 163

Question about coaster brake design

Hi guys, I have a question regarding one component in coaster brakes, the clutch spring. Also known as retarder spring, clutch tensioner, etc. I've been reading H.P Townsend's coaster brake patent and in it, he describes his clutch spring, M as providing resistance needed for relative rotation betwe...
by Dogu-ya
Jul 03 2018 10:37pm
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 211
Views: 36603

Re: AT-One electric inline skates (quick update April 2018)

Yep ! These are a good choice to start with. I forgot, do you want to FWD, RWD or AWD your skates with the clutch ? Only RWD or FWD, depends on how it feels when accelerating, that will be a later stage. Currently working with RWD design, just because it seems conventional. The clutch allows for fr...
by Dogu-ya
Jul 03 2018 1:09am
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 211
Views: 36603

Re: AT-One electric inline skates (quick update April 2018)

I'm impressed by these little bldc motors, they put out a lot of horsepower for their miniature size.
5065 motor 1.PNG
5065 motor 1.PNG (351.5 KiB) Viewed 1113 times
5065 motor 2.PNG
5065 motor 2.PNG (241.09 KiB) Viewed 1113 times
5065 motor 3.PNG
5065 motor 3.PNG (243.02 KiB) Viewed 1113 times
5065 motor 4.PNG
5065 motor 4.PNG (219.74 KiB) Viewed 1113 times
5065 motor 5.PNG
5065 motor 5.PNG (286.92 KiB) Viewed 1113 times
https://grabcad.com/library/5065-bldc-outrunner-motor-1
by Dogu-ya
Jun 28 2018 10:29pm
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 211
Views: 36603

Re: AT-One electric inline skates (quick update April 2018)

If you wanna try VESC despite the stories, note that it had become a lot more user friendly now with VESC-Tool! Auto detection helps a lot to get adequate parameters for your motor. Yep, gonna have to either cut the frames or adapt a sub frame to it! I've ridden many miles with 2 wheels per skate (...
by Dogu-ya
Jun 28 2018 1:25am
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 211
Views: 36603

Re: AT-One electric inline skates (quick update April 2018)

I'll start with a basic ESC, read a lot of horror stories about VESCs and FOC mode blowing up because of bad parameterising. I modelled the skate frame I have (minus all the fancy geometry), gained a slight appreciation for the considerations that go into the skate frame and wheels. Skate frames wou...
by Dogu-ya
Jun 21 2018 9:01pm
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 211
Views: 36603

Re: AT-One electric inline skates (quick update April 2018)

Which acceleration level do you want to achieve ? Plenty of torque is great (I'm kinda a power addict haha), but it should also be tame enough for human balance ! 10-15Nm should be plenty enough for a strong start I think, so if you can size your clutch toward 20Nm tolerance you should have overbui...
by Dogu-ya
Jun 20 2018 9:26pm
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 211
Views: 36603

Re: AT-One electric inline skates (quick update April 2018)

Not sure if I should start my own post or hijack this one(?) Seems most inline skate discussions happen here. I am done drafting my "small-scale" 2 way clutch, Inventor is telling me it will fail at ~3Nm, which is bad... A few short calculations imply that torque needed is 7.5 ~ 15Nm. Probably more....
by Dogu-ya
Jun 05 2018 8:12pm
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 211
Views: 36603

Re: AT-One electric inline skates (quick update April 2018)

Hi Dogu, welcome! :wink: You did choose the rough path then, and seeing you're a soldier you're fit for it! I'll gladly help if I can. Yep Thundrblade are the only choice available for now (it is Ryuudan skates) & I'm working my back to officially release AT-One :mrgreen: Why hate on hubs / direct ...
by Dogu-ya
Jun 05 2018 1:59am
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 211
Views: 36603

Re: AT-One electric inline skates (quick update April 2018)

Hi new to this forum, been a long time stalker of this thread. I've also wanted to design and build my own electric inlines for a long time, I am finally determined to start. Been procrastinating by going to the army for 2 years, going to university, getting a job for 3 years as an engineer. Time to...