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  1. MrDude_1

    Has anyone disassembled a Meanwell HLG supply yet?

    Like the topic said... Has anyone disassembled a Meanwell HLG supply yet? I have two MeanWell HLG-240H-30A supplies that I run in series to charge my 16s bike... it only goes up to 65.4v (4.0875 v per cell) and I would like to tweak it up to 66.4v (4.15v). Before I go and open my new...
  2. MrDude_1

    Future EV parts to scrap off of cars...

    Intresting article here: http://jalopnik.com/everything-you-need-to-know-about-the-upcoming-48-volt-1790364465 Its about cars moving up to 48v and various bits they expect to see in "mild EVs" The entire time I am reading this article, I am seeing parts I can get cheap from a scrapyard in a...
  3. MrDude_1

    What are all my current Skateboard Hub Motor options?

    Can someone explain to me all the current skateboard hub motor sellers? I have tried reading through alot of stuff, but there is a bit of drama and R&D in each thread.. to the point where I dont know whats available now, a year later.. I seem to hear Carvon, Jacobs hub motors and Hummie hubs...
  4. MrDude_1

    Can someone reccomend me a cheap front fork?

    Heres where I am at. I have a cheap genesis v2100 that I commute with. With the additional speed I see as an ebike, I had to upgrade the front brake. (203mm now) With stronger braking, I have worn the plastic bushings down in the fork to the point that I need a new fork. The main thing to me is...
  5. MrDude_1

    Huge heatshrink sizes in USA?

    Is there anywhere in the USA that sells huge heatshrink sizes? I am looking for ~300mm and ~450mm flat across sizes. Preferably black PVC. I can find tons of it on ebay, but its all in china, and takes weeks to get here. I dont need it often, but when I do I tend to need it fast. Does ANYONE...
  6. MrDude_1

    inexpensive BRUSHED DC motor controller??

    I am hoping someone here can help point me the right direction. I recently acquired a kid-size electric kart. I plan to start a build thread soon. It has a massive "1hp"-24v-42amp continuous Ohio Motor on it. Manufacturer data allows 550+ peak amps. :shock: I dont need that much...
  7. MrDude_1

    DIY Phaserunner heatsink.

    So this is how I made a custom heatsink for my phaserunner controller. for phaserunner info look here: http://www.ebikes.ca/shop/ebike-parts/controllers/c-phaserunner.html# It all started out as a simple thought: so I went on ebay and ordered a block of aluminum... I then went over to grins...
  8. MrDude_1

    can an RC outrunner shaft be magnetic steel?

    SO long story short, chain jumped, wrapped on the gear bolts of the rear sprocket and yanked on the motor shaft with enough force to bend it.. bend the 14mm stainless steel shaft. So now I need a new 14mm shaft. I am having issues finding non-magnetic steel rod 14mm od. I can find steel rod...
  9. MrDude_1

    Building a "Smart" CC lipo charger.

    First lets get the disclaimer out of the way. This is a stupid idea. If it fails, there is a high chance you will damage your batteries. There is a chance you could explode something. This works with high DC voltages, High AC voltages, and is lethal in just about every bad way possible. If...
  10. MrDude_1

    Thermodynamics question - controller heat

    So I am trying to work out a math problem, but I have no Thermodynamics education other that what I have picked up here and there... Hopefully one of you engineers can help me out. Here’s what I am trying to solve: I have a small ebike controller that can push 80amps, and then rolls back power...
  11. MrDude_1

    80-100 bell set screw question

    so this may be a dumb question, but I figured i would ask before I tear my motor apart. While checking my motor before its final install, I found the bell set screws to be snug, but not tight. I tightened them, but now I worry... right above them is a flat spot. are the set screws supposed to...
  12. MrDude_1

    My 40mph commuter Goped build thread.

    So this is my build of a 40mph electric GoPed. How this came about: For most of my life, my hobbies were building cars, electronics and motorcycles. I have ridden motorcycles for all of my adult life. I built/raced cars for all of my teenage and early 20s. I got bored with it, and I sold all my...
  13. MrDude_1

    quick sanity check of my lipo upgrade

    Can someone give me a quick sanity check to make sure this all makes sense? This is the wiring plan for my lipo upgrade. Two 4s lipo bricks make up one 8s unit. I have 4 such units making a 8s4p pack. The stock controller has a 33v limitation, so I am keeping it at this voltage for now. As...
  14. MrDude_1

    What can I use for a load to test a power supply?

    This seems like a really simple question to me, but I cant seem to find a decent answer online. I have a meanwell power supply that can put out 24-33v dc and 480+ watts. (18a or so max) What I want to do is put a load on the power supply that will pull between 7 and 10 amps (at whatever...
  15. MrDude_1

    Goped ESR high voltage cutoff

    Does anyone know how to modify the ESR high voltage cutoff? Perhaps adding/changing some resistor to the controller board? I've searched all over for info on it.. The only thing I know for sure is that my goped will cutoff from high voltage at about 30v. I want to run 8cell lipo, so hot off...
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