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Lightweight CNC e-cross QS165, ND72360.

hetm4n 4470 31
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  • Lightweight CNC e-cross QS165, ND72360.
    Welcome, I present my construction made completely from scratch. It is an electric cross with MIDDRIVE motor. The geometry is similar to the surron. Frame drawn in Corel and milled from 7075 aerospace aluminium on CNC router (10mm body, 20mm swingarm).

    Fardriver ND72360 controller (190A/360A-13kWmax) currently set to 120A/240A
    Motor QS165 47Nm + gear from surron + rear sprocket 58T.

    Cool? Ranking DIY
    About Author
    hetm4n
    Level 20  
    Offline 
    hetm4n wrote 806 posts with rating 513, helped 5 times. Live in city Ruda Śląska. Been with us since 2007 year.
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  • #3 21033790
    gulson
    System Administrator  
    And that's DIY! Plus eco-friendly :)
    Thanks for the presentation. Text me the parcel number and I'll send a small gift.
  • #4 21033818
    szeryf3
    Level 29  
    Looks awesome
    This is DIY.
  • #5 21033930
    hetm4n
    Level 20  
    ArturAVS wrote:
    Registered?

    From information from people who have already tried to register a single project of their own design, it comes out that this is practically impossible. Unless someone has better knowledge on the subject :) and by the way, I only drive it to the forest, tributes, pits etc. on public roads.
  • #6 21033938
    ArturAVS
    Moderator  
    hetm4n wrote:
    From information from people who have already tried to register a single project of their own design, it comes out that it is practically impossible to realise.
    It is realisable but costs a lot of pennies.
    hetm4n wrote:
    I only drive it to the forest, tributes, pits etc. on public roads with it.
    So formally, have you taken out any insurance? For your own peace of mind. And why do I ask? I once had a situation where I had a collision with a passenger car in a closed area (company). I was driving heavy/construction equipment (the licences were there, of course), the equipment had no third party liability and I had a lot of pulling because of it (the company too). After the incident I took out OC for my bike even, you never know what can happen.
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  • #7 21033984
    hetm4n
    Level 20  
    @ArturAVS I have a mortgage oc for the whole family, whereas even problems can be caused by walking and damaging someone. Itp.
  • #8 21034071
    E8600
    Level 41  
    Why is it not possible to enlarge the photos?

    What diameter is the control arm axle because it looks very delicate in the pictures?
  • #9 21034275
    hetm4n
    Level 20  
    @E8600 corrected. Control arm axle 10mm. Standard dimension on this type of factory motorbike. (Surron, talaria, e-ride etc).
  • #10 21034324
    E8600
    Level 41  
    hetm4n wrote:
    second battery under construction on NMC LG Chem E61v 60Ah cells.
    Will power be increased on new battery? The motor will withstand the max of this controller?
  • #11 21034347
    hetm4n
    Level 20  
    @E8600 this instantaneous motor will take 18kW, it is protected by a temperature sensor. With 8kW in the field the maximum temperature it has reached is 60°C. The second battery is being set up for quiet longer trips in the larger woodland and mountain trails in the Silesian Beskid. I have no intention of drawing more than 120A. For me, this power is sufficient.
  • #12 21034543
    maciex1993
    Level 15  
    A colleague from Ruda Śląska? Then I invite you to contact me!
    Great project, respect for making the frame yourself, I only converted the spalian.
    Red off-road motorcycle parked outside near a row of garages. .
  • #13 21034660
    E8600
    Level 41  
    I wonder if, in the case of registering a converted diesel, wouldn't it be easier because here only the type of drive is changed?
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  • #14 21034862
    szymon122
    Level 38  
    ArturAVS wrote:
    So formally, any insurance you have taken out?


    The insurance would be for what vehicle? I have an e-bike with a power output of about 2200W and taking out insurance on the bike then in the event of an accident the first thing the insurer will do is verify that my vehicle is a bike.
  • #15 21034928
    hetm4n
    Level 20  
    @maciex1993 what did you put in there that was interesting? What parameters? With the dragracer app you can check the performance by gps:)
  • #16 21035050
    satanistik
    Level 27  
    With these OCs what do you give them on the form, what VIN, frame number? You know such a vehicle I built ;-) . Insurance companies are not looking for problems just cash.

    A cool project, too bad there are no videos from the field. How long does such a battery - rechargeable?
  • #17 21035380
    maciex1993
    Level 15  
    >>21034928
    Motor QS138 70H V3, battery 21S15P samsung 40T 4.5kWh, driver 120A from battery ( votol em 150) (max 180A from battery but I do not need that much, can handle any hill as for my modest skills ) phase current unknown :) theoretically 600Nm on the wheel.
    Weight 108kg, range at 50km/h ~~ 100km, top speed 80-90 but also limited to 50/70 because there is no need for more off-road.
    We can agree on PW for some meeting, I have 2 compatriots from the area on surrrons or other custom.
  • #18 21035430
    pawlik118
    Level 33  
    Upload a video from the site :) .
  • #19 21035597
    ArturAVS
    Moderator  
    szymon122 wrote:
    I have an e-bike with a power output of about 2200W and taking out insurance on my bike then in the event of an accident the first thing the insurer will do is verify that my vehicle is a bike.
    By law it is not. I was not referring to motor insurance.

    Text excerpt about third-party liability insurance in private life.
  • #20 21037280
    ^ToM^
    Level 42  
    To ride on the street you need a category A or B licence, For a bicycle card will not pass. :) .
  • #21 21037426
    kiss39
    Level 39  
    Hello

    We have Made in Poland another cool project and product. Create some team, group and register, register guys - because the Chinese will take advantage.
  • #22 21041800
    rademenes787
    Level 6  
    Great and congratulations, you're the guy! My only concern would be the sharp edges, especially at the top.... Is it not possible to soften it somehow? Maybe an overlay?
  • #23 21042151
    hetm4n
    Level 20  
    The edges are gently chamfered, no harm done. It is possible to combine them with some protective casings etc, but I like them as they are. In general, the idea was to make them very round during machining, but my amateur CNC milling skills and lack of knowledge of cad programs, I opted for simplicity and ease of execution.
  • #24 21042378
    AlexTT
    Level 1  
    We can introduce this design and make it cheaper to implement without sacrificing quality.
  • #25 21052548
    gradek83
    Level 42  
    The Polish military should have such motors for rapid movement on the battlefield.
  • #26 21055528
    szeryf3
    Level 29  
    Now they need a lot of things and are trying to make ends meet. But privately he would be too.
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  • #27 21066520
    Strumien swiadomosci swia
    Level 43  
    Immediately some businessman connected with the Polish board of directors will see a business opportunity and will be looking for students to copy the baika.
  • #28 21066576
    bolek
    Level 35  
    E8600 wrote:
    I wonder if it wouldn't be easier in the case of registering a converted combustion engine, because here only the type of drive is changed?
    The only way to register such a DIY is to buy something with a lightweight frame and documents.
  • #29 21070029
    ziboalle
    Level 2  
    Super project.
    What diameter are the wheels? What is the total weight ?
  • #30 21071271
    hetm4n
    Level 20  
    @ziboalle 19" wheels 70/100-19R tyres , weight 65kg
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    Topic summary

    The discussion revolves around a custom-built electric cross bike featuring a MIDDRIVE motor, specifically the QS165 model. The frame is crafted from 7075 aerospace aluminum using CNC milling techniques, with dimensions similar to the Surron bike. The setup includes a Fardriver ND72360 controller, currently configured for 120A/240A, and a rear sprocket of 58T. Participants discuss the challenges of registering such DIY projects, insurance considerations, and technical specifications like wheel size (19 inches) and total weight (65 kg). The author mentions plans for a second battery to extend range for off-road use, while others express admiration for the project and share insights on performance and safety.
    Summary generated by the language model.
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