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  1. galp

    BESC-G4

    The new BESC format is here. I started designing G3 but later scrapped it and went straight to G4. This version will be capable of even more serious current and higher voltage. At first glance: 12x IXTN400N15X4 in SOT-227 housing 700A phase current 30S capable 90 mm^2 phase busbars, 60 mm^2...
  2. galp

    Any 10-40 kW motor recommendations for ATV?

    Hi. Do you have any motor recommendations in 10-40 kW range for electric ATV? Voltage ~100V Phase current up to 400A Size/ weight should be something to fit on an ATV (10-30 kg could be more). Double winding would be perfect. I quoted for Emrax 208 bit it was almost 5k €. So I'm looking for...
  3. galp

    BESC - beefed up VESC motor controller for high power ebikes

    Heyo! I've been working on high power VESC fork for the last couple of months. It uses VESC logic and isolated gate drivers from TI combined with high performance MOSFETs. It is designed to take maximum input voltage of 150V (30S lithium capable) and peak 200A phase/battery current. Top side...
  4. galp

    Developing something like cycle analyst but for controllers running VESC software

    Hi! I've been developing my own motor controller based on VESC project for my 5 kW bike. It's falling together quite nicely. The thing is I'll have to make my own dashboard for it since it doesn't seem to exist. I was thinking to build something like cycle analyst or 750C display. I'll use...
  5. galp

    Problem with hub motor / hall / controller

    Hi! I recently bought this kit from aliexpress. Everything was running fine for about 200 km until today. Motor still runs fine with no load. But when I ride it and throttle up the motor makes weird noises like something is spinning inside. The speed on LCD also goes up although the actual road...
  6. galp

    10 kW Giant Glory 1

    Here's my Giant Glory 1 downhill bike conversion. mw0MbFbwiJo The bike used for this project is a downhill bike Giant Glory 1. It is a full suspension 26" bicycle with 180 mm front and 200mm back travel. Before mounting the rear motor wheel some modifications had to be made. Because the...
  7. galp

    Yet another custom remote - GalWii

    Hello! Sometime ago I decided to make a remote for my board. Idea is quite simple and goes something like this. Tx reads trigger value and sends it to the Rx (what every radio system usually does). On top of that, Rx reads: Voltage Current Charge (mAh) Temperature Speed (tacho) Tx...
  8. galp

    ESC for 4S 30A with brakes

    Hello! Is there any good ESC for 4S and 30A motor? Since VESC would probably be an overkill I'm looking for something cheaper. I have the PCBs and components for 4 VESCs at home but I'd like to use them for other projects. Anyway is there an alternative to VESC for specified specs on hobbyking...
  9. galp

    Using MOSFET for switching power and DB25 charging connector

    Hello! I want to share how I implemented main power switching with a single mosfet transistor that can be also found on VESC. I tried to make a super simple schematics. It also features a DB25 connector for charging. That way you can keep all the electronics enclosed at all times and simply...
  10. galp

    "Vintage" cruiser board

    Hello! I won an auction on ebay a week ago and received the board today. Nevermind the color. I got it for 6€ + 7€ shipping. I'll need something small for short commute to uni that starts in autumn. Has anyone converted it to EV yet? I have a spare SK3 motor, VESC and few LiPo cells at home...
  11. galp

    What was your FAIL moment?

    My worse fail moment was when I accidentally shortened vesc and 10S battery. Battery ground was still connected to VESC when i was doing some repairs on it. Fail moment happened when positive battery connector slipped and touched housing of usb port on vesc immediately vaporizing usb's metal...
  12. galp

    Enclosure for Quanum pistol grip

    Hi! I was wondering if anyone already made an enclosure for Quanum pistol grip remote. I'm thinking of designing 3d printable one just like Badwolf's for gt2b. Batteries died in mine today and I'm not buying them again. Besides I don't like how this remote looks like a gun... And it's also...
  13. galp

    Somewhat stealth ex-mountainboard, now longboard build

    Hi! I got tired of my local forest paths and decided to buy longboard wheels, mount them on mountainboard deck and trucks and see what happens. I was quite happy with the setup and super wide trucks are really awesome for cruising. After some days spent planning and modeling all required stuff...
  14. galp

    Pulley up a kryptonics wheel

    Hi! I just want to share my experience and knowledge with you. This is my way of mounting a pulley to a kryptonics longboard wheel. I've spent about a week on this one and tried to figure everything out. I think it turned out pretty well. This is exploded view render from solidworks. And...
  15. galp

    Carbon fiber pulley and machining leftover material

    Hi! So I got this Idea to machine pulley from carbon fiber sheet. I'm thinking of using 3mm sheets and cutting 4 of them and then bolting them together to get 12mm in width. Carbon fiber could also work better because I can use 1mm or 0.5mm tool. I machined pulley from 10mm aluminum today but I...
  16. galp

    What are best/cheapest longboard trucks available?

    Hi! I'm new to longboard stuff and I would like tu get some longboard trucks. After my mountainboard build I realized the board is too big for city cruising. So what I'm going to do is to keep the board (atom 85) and just replace trucks. I'm looking for the most money/quality efficient trucks...
  17. galp

    Share your experience with Hobbyking 150A car ESC

    Hello again! After my build of 10S dual SK3-6364 mountainboard. I decided to build an e-scooter. It will be running on 6S, since my budged is limited this time. I'm going to use a bit smaller motor SK3-6354 with 260KV, geared 1:4 on 200mm wheel. This is where I need your help. Should I buy...
  18. galp

    Hobbyking YEP esc

    Hello, does anybody have experience with HK YEP esc? How do the perform? Is electric brake usable? I was looking for 60 amp version for 2kW board. I used search but did not find anything. :( Thanks.
  19. galp

    Schematic for Turnigy 8000 6s

    You will need 12 packs for that. 4 in series times three in parallel.
  20. galp

    GalWiii - software/hardware for controlling e-boards

    Hello, my name is Gal and I'm from Slovenia, EU. Recently I started developing software/hardware for controlling all kinds of e-boards that use any kind of RC ESC. Here is a simple diagram how software works and what it does: GalWii is arm based so it has a lot of processing power allowing...
  21. galp

    3d printed pulley

    I just upgraded my 3d printer with heated bed so now i can print ABS plastic. I will try to print a pulley. I don't think it would be possible to print a small pulley (on motor) but i think it would be possible to print a larger pulley like 60 or 80 tooth. What do you think?
  22. galp

    MBS atom 85

    Hi guys, I have been working on my e-mb project for a month now. I allready have the motors and ESCs. I bought two Turnigy SK3 245Kv motors and Turnigy dlux 80amp ESCs. I don't really know where to get parts for transmission. I calculated the transmission ratio about 1:6 at speeds of 35km/h. I...
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