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Team Microbots Build Diary

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  • Team Microbots Build Diary

    Getting ready for a lot more stuff to come, expect to be thrown from the arena in next years UK FW Champs!

    Skyfall
    Skyfall is under major redesign and is going back into the shed at the end of the year for a complete rebuild, but same basic concept and same pneumatics, but I think Speed 900s in the middle of the robot, so it will be able to turn without difficulty:


    More pics of the CAD here.
    In the mean time, as the old 12v drills have now conked out, I will be fitting a pair of 9.6v Gimsons for the time being, which will eventually be used in new Metalbeak, a crusher with a hefty Gimsons Linear Actuator to power the claw.

    Antomic
    With the approach of AWS 39, I will be building a new ant which I have bought all of the parts for now:
    2 x Pololu 50:1 HP Motors
    2 x Fingertech TinyESC v2s (expensive!)
    1 x KST DS125MG Wing Servo with 7kg/cm of torque... Will be fun to see robots lifted with such ease, the 3.5kg/cm I have in Anti-Gravity 3 right now is enough to lift ants easily at full power.
    1 x 6v NiMH
    1 x Minima 6E RX
    The armour will be a type of Aluminium Alloy that I can't for the life of me think of the name of that weighs the same as normal aluminium but is a lot stronger. I have shed loads of it, so no need to buy that, but I want to get the parts before designing a body because of the size limit.

    Prometheus
    A brushless spinner concept based on 259 that I hope to have working by AWS 39, but I highly doubt it what with Skyfall, Antomic, and of course, school work (going into Yr. 11 'aint easy!). But I still hope to be shredding coke cans by the end of the year with a 10,000 rpm spinning flywheel powered by a Scorpion 2205-36 Brushless Motor at 6v.

    Project X
    Not forgetting of course the newest addition to the team, the transmitter problems are all sorted now so it should drive perfectly. As far as I know, it's the only robot using six independent Gimson motors to provide ultimate pushing power, but if you know otherwise, say. It will remain unchanged for a long time, as it works perfectly and as far as I know has very few minor flaws that will hardly ever put it in danger. The 40mm HDPE bulkheads on each side and in the centre of the robot are, I believe, unbreakable by Featherweights, but the scoops are so bendy that I really need new ones!

    I went all out on the diagram of Skyfall, so perhaps it can be used as a basic pneumatic FW guide:
    Last edited by Revsmin; 9 April 2013, 20:41.

  • #2
    Re: Team Microbots Build Diary

    sounds and looks very impressive Jarvis, liking the sound of the mini 259 don't bother with 6v, its so pitiful, go for a 3cell lipo, or a 2 cell if you are weak/sensible :P
    oh, and regards to schoolwork i found away around that, its just a case of not doing it

    Comment


    • #3
      Re: Team Microbots Build Diary

      I imagine you already know this but a 15A electronize won't be enough for a speed 900.
      Apart from that looks very good, sounds like you are going to be busy for a while!

      Comment


      • #4
        Re: Team Microbots Build Diary

        Looking forward to it all, mate.

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        • #5
          Re: Team Microbots Build Diary

          Is this one also going to be as long as an Oil Tanker?

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          • #6
            Re: Team Microbots Build Diary

            No:

            Because the motors will be at the sides, and not at the back, I can shorten the back end by 6cm, and since the original body (exc. wheels) was 53cm, it's now only 47cm. The main box section of the robot is also smaller, a width of 20cm as opposed to 29cm.

            Comment


            • #7
              Re: Team Microbots Build Diary

              how you planning on putting the motor & gearbox and the wheels at 90 degrees??

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              • #8
                Re: Team Microbots Build Diary

                Something similar to this might work:

                Comment


                • #9
                  Re: Team Microbots Build Diary

                  Oh that's going to be expensive for decent bevel gears...

                  Comment


                  • #10
                    Re: Team Microbots Build Diary

                    About €10 for the cheapest anglegrinders I can find.

                    That gives you a full gearbox.

                    Comment


                    • #11
                      Re: Team Microbots Build Diary

                      ahhh i was looking at a DIY gearbox using bevel gears on different ratios.

                      Comment


                      • #12
                        Re: Team Microbots Build Diary

                        This build will be one to watch

                        first part looked like dt coursework lol

                        Comment


                        • #13
                          Re: Team Microbots Build Diary

                          I found with a lot of angle grinders that the outer plastic casing is integral to the structure of the gearbox. They also use Helical gears.

                          Comment


                          • #14
                            Re: Team Microbots Build Diary

                            Originally posted by PJ-27
                            I found with a lot of angle grinders that the outer plastic casing is integral to the structure of the gearbox. They also use Helical gears.
                            So? Still probably cheaper to get the gears from such a gearbox, than to buy 'm from RS or HPC.

                            The gearbox itself is another matter.

                            Comment


                            • #15
                              Re: Team Microbots Build Diary

                              Originally posted by Hard Time
                              ahhh i was looking at a DIY gearbox using bevel gears on different ratios.
                              The gears in an anglegrinder do have a ratio. Like 1 to 2.5.
                              That was my conclusion when making the twin Speed 900 setup for Prodigy Evo.

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