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Thread: Team MedBots

  1. #271
    Max's Avatar
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    For anyone who's interested, if you run a 24v Gimson on 36 to 1 ratio with 160mm wheels you get some smoke and a blown 25A fuse.
    I may have to turn down the wheels to a smaller diameter

  2. #272
    Strange, In Hannibalito 4 we run 9.6V GR01's with 180mm wheels @ 3S. The fuse is a 40A one, but I tested a 25A one too, and no problem there at all.
    Last edited by maddox10; 31st July 2013 at 16:24.

  3. #273
    Max's Avatar
    Member

    It could be a problem with the motor, it is one of the dodgy 24v ones. I've got the 18v replacements but thought I'd give the 24v ones a chance first as I don't want the extra speed from the slight overvolting.
    I'll test the motor to see where the problem lies

  4. #274
    Max's Avatar
    Member

    I can confirm now its cooled down that the brushes on the motor snapped off so that probably caused the problem. But both motors were very hot so I will turn down the wheels to about 130mm to prevent future failures.

  5. #275
    Max's Avatar
    Member

    Do most people use a normally closed burkert valve for inlet to their ram and a normally open valve as an outlet? I've realised both of the valves I've ordered are normally open so is there an easy way to modify one of them to normally closed?
    Last edited by Max; 1st August 2013 at 11:15.

  6. #276
    Most of the heavies use normaly closed valves , You need to give them power to open.

    In your case, you need power to close them, making it a rather dangerous setup. Link up, hope the valves that need to be closed are powered (LED is your friend here), before you open the bottles, very very gently -turn knob valves, not fire-extinguisher handles- And if during combat the power fails, your weapon will be activated, but blowing CO2 right out of the exhaust valve too. White clouds anybody?

    Modifying a Burkert. It's probably easy enough, but I myself never had the chance to look into a normaly open Burkert 5404 with 12V solenoid. Where did you order it?

  7. #277
    Max's Avatar
    Member

    Well I got my dad to order it from my pneumatic supplier so I had to guide him over th phone so I'm not entirely clear what type the valves are I'm getting! They should arrive today or tommorow so I'll find out exactly what I've got then get back to you, I wouldn't be that surprised if I get sent 24v nc valves.

  8. #278
    Max's Avatar
    Member

    Does anyone know if the electronize 30A have current limiting?
    Because mine seems to keep cutting out for half a second then going for around 5-10 seconds then cutting out again
    Last edited by Max; 2nd August 2013 at 16:54.

  9. #279
    Never felt that on ours. From memory it sometimes felt like they'd delay a tad when trying to move an almost jammed motor (say bringing Tormenta 1's lifter down after hoisting the sofa), but nothing like you described.

    Check your rx isn't being starved of power, if you're running a BEC. If the battery is discharged, or being too heavily stressed by the drive motors, the BEC might not keep the rx alive and so it'll failsafe. Once it "comes back on line" after the battery has recovered, it may take a moment to rebind, which might be delay you're feeling.

    Just a thought.

  10. #280
    Max's Avatar
    Member

    It seems to be happening a lot with one esc and a very little bit with the other so I doubt the receiver is failsafeing, but the bec could be starving the escs of power

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