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  1. Unfortunately not the first batch has sold out. ...

    Unfortunately not the first batch has sold out.

    I am currently changing the design slightly to improve the performance significantly. Which will take about a month before I can accept preorders...
  2. Yes, it's an inverter so battery current is...

    Yes, it's an inverter so battery current is normally significantly lower than motor current unless you spend all your time at 100% duty 200A which I rather doubt. Ec5 is good for 120A continuous...
  3. Here is the first finished controller...

    Here is the first finished controller
    https://i.imgur.com/GE4kiWq.jpg
  4. Did more testing today, with some help from the...

    Did more testing today, with some help from the other thread over on vesc forum (https://vesc-project.com/node/339?page=1) it turned out to be an issue with the current shunts reading the wrong...
  5. All the units will be shipped on Wednesday as I...

    All the units will be shipped on Wednesday as I need to order more capacitors to put the extra ones on.

    I spent the whole day testing at 12S, I seem to be saturating the Revolt160sh at 140A and...
  6. Thanks Leonard I took a few days to go over all...

    Thanks Leonard
    I took a few days to go over all the settings and make some improvements to the board for 18S, such as 3 additional capacitors on the output side. Now the inductance to the bulk caps...
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    Yeah all my holes for waterjet are 1mm bigger...

    Yeah all my holes for waterjet are 1mm bigger than required so they are a good clearance fit. The tolerance is caused by the kerf of 0.5-0.7mm for 4mm thick steel. If its thicker you might need more...
  8. During my testing yesterday I put the wrong...

    During my testing yesterday I put the wrong settings on the board and managed to blow it up on the switch from Hall sensors to sensorless. Also had 0A regen which was stupid. So on the switchover it...
  9. Have now tested at the max current my power...

    Have now tested at the max current my power supply can manage. Just waiting on the lipo to charge! 8029
  10. The boards have now finished being assembled by...

    The boards have now finished being assembled by the fab and are on their way to me! All the other parts have arrived so I will be doing final testing this weekend.

    https://i.imgur.com/BrW2ASg.jpg
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    If you are a student you can download Inventor...

    If you are a student you can download Inventor and use the design tools in there to generate pulleys, belts, gears, chains, etc with the correct center distance and then import them to fusion 360.
    ...
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    Anyone in Zurich?

    Currently in Zurich for the next few days.
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    Yeah you don't need a 10kW motor for a self...

    Yeah you don't need a 10kW motor for a self righter, unless its also a spinner... A VESC-X would probably work fine.
  14. OK will make one shortly then. The fab...

    OK will make one shortly then.

    The fab finished the first board and it passes the functional tests I sent them. (Without a motor) Which checks that everything is connected properly and working. So...
  15. I have been using the ebike throttle that maddox...

    I have been using the ebike throttle that maddox sent for all my testing. Should I make a video showing how to set it up?
  16. So the PCBs are finished and 40 are heading back...

    So the PCBs are finished and 40 are heading back to me now. Should arrive on Monday. Currently the first board is being assembled and tested to ensure everything is OK before building the rest. ...
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    Ok I am now deciding between these three. I think...

    Ok I am now deciding between these three. I think the last one is the best for what I need to do.

    Small one with dro...
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    I already have a cnc mill so don't need a combo...

    I already have a cnc mill so don't need a combo machine. Just looking for something small so I can put it on my bench. Would be nice to able to handle about 100mm aluminium cores for dual disk drums.
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    Looking for a small lathe for fw drums

    I am looking for a small Lathe to make featherweight drums and shafts etc, preferably tabletop and reasonably cheap <£2k.

    Been looking at this one:
    ...
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    There is some talk of banding together to make...

    There is some talk of banding together to make our own show. Seems there are plenty of people willing to volunteer to make it a reality.

    Edit: If you are interested in helping hit up this group....
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    They could have told us a bit earlier so we could...

    They could have told us a bit earlier so we could actually have applied for BattleBots instead!! The complete lack of communication is infuriating! Guess we will just build a bunch of feathers for...
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    The teeth actually stick out below the chassis so...

    The teeth actually stick out below the chassis so if one touches the ground it might go flying. Which will make it more entertaining to watch.. less so for driving!
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    Yeah that was the other plan, will need to cut...

    Yeah that was the other plan, will need to cut the shafts down anyway. So that is probably the easiest way to do it.
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    So we fired it all up and it spins nicely,...

    So we fired it all up and it spins nicely, limited it to 200 rpm and it only needs about 60A on one motor to maintain that speed.

    Here is a test of the weapon module at 60% speed (I did also do...
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    It's because a lot of the time electronics...

    It's because a lot of the time electronics connect the ground to the case of the device, or the mounting points. So the whole frame of your bot would be battery ground in that case. It doesn't really...
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