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  1. F

    #crossbreaks' midmotor CB120

    definitely not :-) I already offered my support and I am just 2h away from crossbreaks home. I have a Haas VF2 Mill and a Haas ST20 Lathe and a LaserCutter on my hands. No issues to do the job. But as far as I noticed there seems to be an issue getting the lams material. So, we should clarify...
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    build your very own Lebowski controller !

    Hi Lebowski, I am currently building up the controller. Probably I am just too stupid to find.... but how do I get the values for the R_mo resistors ? See attachment Thanks for enlightening me :-)
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    #crossbreaks' midmotor CB120

    ok, when you built the prototype, how did you get these lams ? Or what is the type/name/code of the material. A close friend of mine has 2 laser cutting companies in the stuttgart area. If I can let him know the material, he probably can get the lams and cut them out.....
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    #crossbreaks' midmotor CB120

    Hey CB, just one question. Where did you get the raw-material for the lams here in Germany / Europe ? I can hardly find a dealer around :shock:
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    LMX P2 : Freeride trials motorcycle frame development

    Hi Adam, it is a 24*4.0 so not too fat. Between the swingarm I could even put a 26*5.0. For Trial biking it behaves just perfekt. For singletrail down I can either pump it up or take my other 24*3.0 wheel. But honestly, for singletrial upwards it is the best I had. Battery is 16Ah / 92V nominal...
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    LMX P2 : Freeride trials motorcycle frame development

    Just finished this guy :-) Wheelbase is 3cm longer than a Specialized Demo. Ultra handy. Weight with 80V is 32.4kg, Batterybox and controller (Lebowski 12FET) support up to 120V / 200Amps. Motor size up to 160mm diameter. Very progressive rear suspension with 235mm travel. Geometry changeable...
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    build your very own Lebowski controller !

    ok, but ..... how do you sync two controllers: one turns clockwise and the other one counterclockwise ?
  8. F

    build your very own Lebowski controller !

    OK, got you. I guess the throttle values will become negative when I go into reverse, right ? So it seems I need to get/set the values from serial, which is not a big deal technically. But it looks like I can's get the rpms, Will continuous reading of the serial affect any other tasks of the...
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    build your very own Lebowski controller !

    Hi all, just received my chips from Lebowski :-) will start building a controller next week once the pcbs touch down. I read myself through the manual and the thread but could not find help on the CAN options. Usually with CAN you call or write to receivers and their registers. In this case I...
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    #crossbreaks' midmotor CB120

    Hi crossbreak. Any news on this one ? :P
  11. F

    #crossbreaks' midmotor CB120

    Maybe not directly related to the motor....but has anyone dxf's for the gates carbon drive belts ? The belts itself are pretty cheap, but the prices for the gearwheels are heavy stuff. Just because I saw the drawing above... :-) Thanks
  12. F

    #crossbreaks' midmotor CB120

    hey, good to hear from you. If my CAD helps you with the LMX let me know by PM. No problem to share it with you incl the CAMs.Cheers ! :-)
  13. F

    #crossbreaks' midmotor CB120

    those are built into the ktm http://www.heinzmann.com/en/electric-motors/pancake/synchronous-motor
  14. F

    #crossbreaks' midmotor CB120

    sry, forgot attachment
  15. F

    #crossbreaks' midmotor CB120

    Great job, congrats. I am also searching for a "usable" mid drive. I started to rework the bht. See attachment. I implemented a servo shifted 2 speed gearbox and ended up with getting it between 150mm swingarms. 1st gear reduces 1:2.6, second is direct 1:1. The issue with that is, that I need to...
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    LMX P2 : Freeride trials motorcycle frame development

    In most parts of western EU it is illegal to drive ANY motorized vehicle offroad, except farmers vehicles or on private own land, but even there only if you can proof certain requirement, e.g. for transport, hunting, etc. Unfortunately sport and fun is not accepted as requirement. There are 3...
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    build your very own Lebowski controller !

    Thanks guys for your quick answers :-) This is what I was hoping for
  18. F

    build your very own Lebowski controller !

    Really an amazingly great job Lebowski. I am pulling my hat. But I still have a question. Maybe I was just too stupid to find it in the posts, but....how does the controller behave ? Is it a pure torque control or speed control ? I am currently using a Kelly KBX which also claims to support...
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    LMX P2 : Freeride trials motorcycle frame development

    I am coming from the hard enduro 250cc two-stroker and 600 four-stroker pro scene and yes, you are right what matters weight. But that is only true under certain conditions, mostly when speeding in rough terrain. No joke, but with a heavier bike also a crash is happening slower (especially when...
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    LMX P2 : Freeride trials motorcycle frame development

    You are totally right reg. weight. Anyway still very light. But I could not withstand to mill the swingarm out of 7075aluminum blocks :-).
  21. F

    LMX P2 : Freeride trials motorcycle frame development

    Yep. That's my thought too, but I am coming more from the enduro side. Have lot's of mountains around me. The rear suspension is progressive like from a Trek remedy. You can adjust the geometry of the bike with a single screw under the seat. The motor axle is in the swing arm pivot point. It can...
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    LMX P2 : Freeride trials motorcycle frame development

    Here you go. 6.7kg. Built this one https://endless-sphere.com/forums/viewtopic.php?f=28&t=57668&hilit=bzhwindtalker&start=400#p1041818 a while ago. Time for Prototype 2. Oil cooled motor concept ready also. Controller also PCB ready. bzhwindtalker, let me know if you want to share some business...
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    BIG BLOCK alternative Motor

    From the technical specs absolutely, would be a great thing, but no option for me. It is not a bit waterproof. :cry: I will order one of those bht as a baseline for experimenting with the oil cooling and 2 speed. Once I get it, I will launch a thread. Does anybody more internal measurements...
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    BIG BLOCK alternative Motor

    I copied the picture above (incl order-link) some month ago from a thread somewhere here. The link is identical to the one for the high pole version (1st post here). Means: Same order link points to 2 different motors. Reasonable question: Which version will I get ? Unfortunately I don't find...
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    BIG BLOCK alternative Motor

    Thanks for the quick reply, but I am still not sure what I will get. There seem to be 2 types of this motor. An 8 magnet and a 12 magnet one (see picture for the 8 one and compare with the pictures of the 12 above). My current bike runs with a revolt 100Pro with halls and kelly kbx at 20s...
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