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  1. marka-ee

    What unreasonable demands are the US making to 'resolve' tariffs for your country

    I heard there's some truth to the rumors that some countries charge some tariffs on goods from the U.S. trying to enter their country. Could this really be true?
  2. marka-ee

    Will Tariffs come about and lead to higher priced ebike parts

    I'm in Europe. Do you guys think that these tariff things between the US and China Will make prices go up or down in Europe for bicycle parts, etc?
  3. marka-ee

    Spring seat suspension bouncing - is elastomer better?

    I have a thudbuster seatpost on my hardtail bike as well. It really helps a lot, turns it into basically a halfway full suspension bike. I only do street riding with it, but it made a big difference. The rearward travel of the seat as it hits bumps takes a little bit getting used to, but then...
  4. marka-ee

    Robotics Project: Snuggles, The Wolf

    I think this might be a great interest to you. MSN robotic therapeutic puppies with many of the desired features you want.
  5. marka-ee

    Turn on Bosch Powerpack 500 for accessory usage

    I have a Bosch power tube that I wired so I can get the power bypassing its BMS and it worked okay for me. I charge it through the Bosch connector. Maybe my power tube is older and doesn't have all these ridiculous soft-destruct mechanisms.
  6. marka-ee

    What would be the reason for the dual rear suspension on this "Triple Suspension Foldable E-bike?"

    Someone explain to me how he got about 2 meters of air with no ramp or hill or any other thing like this nearby. I am calling it a doctored image.
  7. marka-ee

    How to Salvage/Harvest Cells, Remove Old Welds

    For me it's the satisfaction of recovering something that would have otherwise be probably thrown away. I like fixing my appliances or home electronics that were purposely designed to fail because of the fuse that slowly burns away, which is often the battery. Yes, it takes a lot of labor and it...
  8. marka-ee

    How to Salvage/Harvest Cells, Remove Old Welds

    If you read carefully, I send I slice through the strips. I don't touch the actual cell.then the stubs of the remaining strips are easy to solder to.I don't have a strip welder, but instead have been sometimes using very low temperature solder. This with a quick dab of soldering iron at a high...
  9. marka-ee

    How to Salvage/Harvest Cells, Remove Old Welds

    I use a Dremel with a miniature cut-off wheel and slice through the nickel strips that way.For many salvage cells, I use them for other purposes, such as replacing cells in home appliances or lithium-powered stuff. So I leave some of the nickel strip on there to make it safer to solder to the...
  10. marka-ee

    42-88V variable current/volts charging. Poor fan flow design choice?

    I have an AliExpress battery charger that does 10 amps and has variable voltage and variable current. I think it's a pretty good charger overall so far because it can charge my 10S batteries and also 20S. Or anything in between. My question though is how they implemented the cooling. There is a...
  11. marka-ee

    Gates CDX belt, any size, even broken

    I don't know if this document would help, but it is what it is. https://www.gatescarbondrive.com/~/media/files/gcd/gates-tech-manual-en.pdf
  12. marka-ee

    some AI images of trikes for fun.

    I do a lot of playing around with generating images on my local machine. These were generated with Flux model. I get such a kick out of these sometimes it's like opening a surprise each time it finishes.I wanted a hub motor, but it has a hard time with that for some reason.
  13. marka-ee

    Coming along nicely...

    A potential thief who knows about e-bikes might take a fancy to the battery and take a box cutter and remove it and walk away with it.
  14. marka-ee

    Voltage Boost (and Z-source inverters) versus Flux Weakening

    I used one of those 1800 watt DC to DC boost converters on a bike for quite a while. It really helped the top speed. Although one thing to be very cautious about is controllers that offer a regen feature because I blew out a controller when it tried to backfeed power. This is not a good thing...
  15. marka-ee

    Finding the "SUV" of Bikes

    So true with these commercially available bike racks for their rear. They always look so good with those fat looking aluminum structural members, but they're actually more like soda straws and not really designed by an engineer. On a suspension mountain bike, I was using one of the racks that...
  16. marka-ee

    Apparently ChatGPT can help you write code / programs?

    chat GPT and for that matter all large language models right now have what's called a context and the context might be what you're referring to as it's 'memory' so the context might be 16,000 tokens which is roughly 16,000 words but after you roll over that it doesn't know anything previous to...
  17. marka-ee

    Apparently ChatGPT can help you write code / programs?

    Wait a minute. LLMs are usually used for text output. Does the wolfie dog plan to talk?
  18. marka-ee

    Browser Ad Blocking (don't leave the server) security and privacy etc making ad filled sites bearable and quick:

    I'm using both Brave and Firefox. I find that YouTube video playback seems to be a problem. It doesn't buffer more than about 30 seconds or a minute worth, and then it just stops and refuses to buffer any more data. It might be my ad blockers, or it might be because I'm using a VPN. Sometimes...
  19. marka-ee

    Controller and Display manufacturers

    I just came across this thread. I'm especially interested in these generic looking controllers coming from China under various names or no name at all. I suspect that many of them share the same internal circuit board. Is there going to be any database or way to help identify these when people...
  20. marka-ee

    What a dumb looking bike

    Form follows function, not the other way around. That's a core principle to engineering.
  21. marka-ee

    How green are lithium batteries EV technology?

    Overconsumption, false ideas of what comfort level should be right, greed, selfishness,These are the faults, I believe, prevent the right thing from happening. I don't think there's anything wrong with EVs or their lithium batteries if the vehicles were small. But people are used to driving...
  22. marka-ee

    Brainstorming ways to make instant 25 km speed limit / low power mode, in case I get inspected.

    I don't know, I may have to tinker around. I have some extra 'Promini' Arduino processors laying around, and those are easy to work with. Where were you getting your tachometer signal from? From a wheel magnet sensor? Or something else? I once took the signal off of a Hall sensor from my motor...
  23. marka-ee

    Brainstorming ways to make instant 25 km speed limit / low power mode, in case I get inspected.

    Yes, that's what my velomobile looks like.I don't have the wheel covers, however. The law is a little ridiculous because with these and pedaling alone, you can get to 50 or 60 km per hour because of the streamline nature of the vehicle. But I still have to suffer a possible inspection, and you...
  24. marka-ee

    Brainstorming ways to make instant 25 km speed limit / low power mode, in case I get inspected.

    It's a leiba x-stream, two 20" on front, 26" on back. I really like direct drive. I have that on my also 26 inch two wheel recumbent. It works out well because there are very few hills near me and I like the silence and lack of fiddly bits to wear out inside. Also, I prefer not to drive that...
  25. marka-ee

    Brainstorming ways to make instant 25 km speed limit / low power mode, in case I get inspected.

    I live in an area that requires e-bikes to have some pretty severe restrictions. They don't like throttles and they only allow power supplementing up to 25 km per hour. On my other bikes, I don't have a problem with this because they look like normal bikes and I just do a lot of ghost pedaling...
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