Search found 143 matches

by s28400
May 09, 2017 3:49 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Enertion - One Big Con?
Replies: 14
Views: 1884

Re: Enertion - One Big Con?

Yeah, I would stay as far away from them as possible. I had multiple very poor experiences with them and ended up just accepting the money I lost and moving on. This pretty much sums it up: https://www.radicalcreation.com/forums/ ... ?f=24&t=46
by s28400
Feb 25, 2017 2:38 pm
Forum: Motor Technology
Topic: BLDC Magnet Grades?
Replies: 2
Views: 267

BLDC Magnet Grades?

Hello, I am in the process of designing my own BLDC motor and I had a few questions regarding magnets. Does anyone know what the grade of neodymium magnet normally used in small rc motors? I have been looking at some charts comparing the grades and I think that N48H would be a good balance between s...
by s28400
Jan 29, 2017 3:58 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: TORQUEBOARDS Trampa MTB Motor Mount Kit
Replies: 1
Views: 673

Re: TORQUEBOARDS Trampa MTB Motor Mount Kit

Very nice! Those look great!
by s28400
Jan 08, 2017 2:53 am
Forum: Stand-up E-scooters and E-skateboards
Topic: Dual motor board with cast aluminium motor mounts
Replies: 8
Views: 1084

Re: Dual motor board with cast aluminium motor mounts

Very nice build, thanks for sharing! I recently built a home foundry and have been playing around with casting. Perhaps I will give this a go.
Cheers!
by s28400
Jan 05, 2017 3:16 pm
Forum: Battery Technology
Topic: High Quality 5-6A 12s LiFePO4 Charger?
Replies: 2
Views: 258

High Quality 5-6A 12s LiFePO4 Charger?

Hello, I am working with some A123 26650 Cells and I am trying to find a high quality robust charger. I was using this one here: http://www.batteryspace.com/Smart-Charger-5.0A-for-38.4V-LiFePO4-Battery-Pack-110-240V.aspx I thought that it was a high quality charger, but it ended up catching fire/smo...
by s28400
Dec 12, 2016 7:15 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Metos's project - VANGUARD | VESC | 6390 3.5KW 170KV | 12S
Replies: 13
Views: 2257

Re: Metos's project - VANGUARD | VESC | 6390 3.5KW 170KV | 1

What kind of current are you pushing to the motor? You may notice the board begins to feel sluggish after a few minutes of riding as the VESC will most likely overheat and start limiting the current to the motor in that enclosure. I would recommend installing an external heatsink that contacts some ...
by s28400
Dec 08, 2016 1:50 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Direct VESC V4.12
Replies: 15
Views: 1485

Re: Direct VESC V4.12

Very nice!! 100 amps sounds juicy! I'd be curious to see what kind of heat those fets throw at that current. Also, do you have a price range in mind for these units when you are finished? Keep us updated!
Cheers!
by s28400
Dec 07, 2016 9:54 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Direct VESC V4.12
Replies: 15
Views: 1485

Re: Direct VESC V4.12

Very nice! I look forward to seeing the thermal performance on these! Where do you get the smd placement done after you order from oshpark if you don't mind me asking?
Cheers!
by s28400
Nov 27, 2016 2:52 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: OpenSource Remote for VESC ArduBoardControl
Replies: 263
Views: 23983

Re: OpenSource Remote for VESC ArduBoardControl

Sorry for the long silence. I have not made much progress recently as other things have come up. I left off with the Bluetooth and programming a menu system. I hope to finish both up in the coming weeks when I have some free time. I will keep you guys updated as I make progress.
Cheers!
by s28400
Nov 26, 2016 5:12 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Enertion boards customer service is shocking
Replies: 10
Views: 785

Re: Enertion boards customer service is shocking

overclocker_kris wrote:UPDATE

Enertion has now gone out of there way to get employees in on there days off to get my refund sorted as quickly as possible. and are communicating with me very well abut the situation. so good on them for that.
They probably saw this thread.
by s28400
Nov 24, 2016 3:11 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Phase and Hall conectors
Replies: 14
Views: 707

Re: Phase and Hall conectors

I like where this is going. I myself have been looking for a connector that can handle all wires going to the motor. Perhaps a more flat design would be better? Also, could there be interference on the hall wires from the large currents in the phase leads being that close?

Cheers!
by s28400
Nov 24, 2016 3:06 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Enertion boards customer service is shocking
Replies: 10
Views: 785

Re: Enertion boards customer service is shocking

I have also had several similar terrible experiences with enertion and will not be buying anything from them ever again. First I waited months for my VESC order after being told time and time again that they would be shipped the following month. The final straw was when they actually took my money f...
by s28400
Nov 23, 2016 7:24 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: VESC 6.0 Update
Replies: 21
Views: 4069

Re: VESC 6.0 Update

Sooo good! Can't wait! :D :D :D
by s28400
Nov 19, 2016 4:44 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Bad to Connect USB to VESC While Charging Battery?
Replies: 3
Views: 242

Re: Bad to Connect USB to VESC While Charging Battery?

Yeah, I am using a laptop but it was also charging. I think my laptop has protected USB ports but I have heard of people frying them when a backflow like this occurs. Do you know why the anti-spark would turn on partially? Also my anti-spark sometimes stays on even when the switch is in the off posi...
by s28400
Nov 19, 2016 2:19 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Bad to Connect USB to VESC While Charging Battery?
Replies: 3
Views: 242

Bad to Connect USB to VESC While Charging Battery?

Hey guys, I've been playing around with some things on my build and noticed some strange things going on while charging. When I connected the charger, the anti-spark switch turned on partially allowing the VESC lights to come on. I eventually realized that this was being caused by having both the ch...
by s28400
Nov 14, 2016 2:32 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Looking for Durable Custom Wheel Pulleys?
Replies: 1
Views: 390

Looking for Durable Custom Wheel Pulleys?

Hey guys, I have been playing with different materials for wheel hub pulleys for the ABEC Flywheels and I have finally found the perfect place to get them made. Shapeways is an online 3D printing service and for about $20-$30 a pulley, you can have them SLS 3D printed out of their "Strong and Flexib...
by s28400
Nov 13, 2016 10:28 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Buffalo: Electric skateboard game-changer
Replies: 4
Views: 706

Re: Buffalo: Electric skateboard game-changer

Doesn't look that great or different to me. Everything looks pretty amateur IMO.
by s28400
Nov 01, 2016 3:31 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Where to buy a VESC?
Replies: 2
Views: 681

Re: Where to buy a VESC?

I've had several very bad experiences with Enertion vescs. I have bought a total of 4 vescs from them and two died after a day of bench testing and two others had dead DRV chips on arrival. They don't respond to their emails or support contact forms and their prices are fairly high. I would stay awa...
by s28400
Oct 18, 2016 8:31 am
Forum: Stand-up E-scooters and E-skateboards
Topic: CC licence and VESC
Replies: 7
Views: 707

Re: CC licence and VESC

Hmm, this is an interesting point. So if you were to make a different board layout, you would have to share it. I know a handful of designs that are modified that have not been shared lol.
by s28400
Oct 09, 2016 4:56 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Open Source Motor Dyno
Replies: 4
Views: 356

Open Source Motor Dyno

Hey guys, I'm working on a motor dyno to test motors and generate power, torque, and efficiency curves. It will be arduino based and will use VESCs to drive/brake the motors. I have started a build log on my site but will update here if you guys are interested. https://www.radicalcreation.com/forums...
by s28400
Oct 09, 2016 3:20 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Advanced Vesc remote control
Replies: 16
Views: 2477

Re: Advanced Vesc remote control

Very nice design work. I am still working on the BLE firmware updating on the other thread but there is a lot to it. Are you planning on keeping this RF based or are you going to switch to bluetooth? Also, I would highly recommend a hall effect based throttle control as those small pots can send fal...
by s28400
Oct 05, 2016 8:28 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Anti-Spark Stuck On From Charger?
Replies: 5
Views: 511

Re: Anti-Spark Stuck On From Charger?

same thing happened to my APS switch 2 weeks ago - stuck on ON position after a few weeks of normal use. was particularly bad for me, since my battery isnt protected by a low voltage power cutoff BMS, so it got discharged to 2.0V/cell cause I didnt use the board for a while. Dang that sucks. Yeah I...
by s28400
Sep 27, 2016 4:30 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: 2nd E-Toxx build
Replies: 10
Views: 654

Re: 2nd E-Toxx build

Holy shit this thing is going to be a monster. What kind of range are you expecting to get with all those lipo's?
by s28400
Sep 23, 2016 11:18 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Anti-Spark Stuck On From Charger?
Replies: 5
Views: 511

Re: Anti-Spark Stuck On From Charger?

I got it from APS but it is the same Chinese one most suppliers sell.
by s28400
Sep 23, 2016 2:24 pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Anti-Spark Stuck On From Charger?
Replies: 5
Views: 511

Anti-Spark Stuck On From Charger?

Hello, I have a generic anti-spark switch like the one from torqueboards or alien power system and it seems to have gotten stuck in the on mode regardless what position the switch is in. It is new and I have not even ridden with it, only bench testing so far. The problem began after I charged my boa...