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Hard Time's build diary

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  • #31
    Re: Hard Time's build diary

    My robot is 2-wheel drive, so I'm getting 2 wheels with nut inert and 2 without.
    I'm using these motors http://www.homebase.co.uk/webapp/wcs/st ... 7C16849334

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    • #32
      Re: Hard Time's build diary

      so are you running the other 2 wheels via a belt drive from the motors?? or are they just dead wheels ???

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      • #33
        Re: Hard Time's build diary

        They're not driven by belts, they're free spinning. Bodge job came yester day and I needed some bearings. I saw his scooter and thought 'hmmm' , so I took my 10 quid scooter apart and in each of the wheels were 2 bearings.That is a cheap way to getwhaeels and bearings. But, I'm not using that way as the bearings are to big for the blue wheels.

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        • #34
          Re: Hard Time's build diary

          Mounted the motors into the plastic assembling it tomorow

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          • #35
            Re: Hard Time's build diary

            My robot so far, in bits.[attachment=0:2whijhdy]Big 'n' Scary, Like a LASER.docx[/attachment:2whijhdy]
            Attached Files

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            • #36
              Re: Hard Time's build diary

              Ordered bearings and steel bar from technobots last night.
              These are the bearings: http://www.technobotsonline.com/miniatu ... x24x6.html
              ...And these are the steel bar: https://www.technobotsonline.com/silver ... 33173.html
              I need a 12v battery that can power 2 drive motors and a lifter motor I'm thinking of using this battery: http://www.technobotsonline.com/haze-hz ... 2.2ah.html
              Is it the right battery? If it is'nt what kind of battery is better?

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              • #37
                Re: Hard Time's build diary

                That's a sealed lead acid battery. Usable but somewhat under powered. SLAs were used around 4 or 5 years ago in featherweights and were the standard at the time.

                I'd recommend looking at nimh batteries instead. Something like this pack here,

                http://cgi.ebay.co.uk/12V-3700mAh-NiMH- ... 3353ee4e1a

                Will give you all the power you need for your 3 drill motors. I have used these packs in the past and they have been fine.

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                • #38
                  Re: Hard Time's build diary

                  Bearings and shaft came last week. Got a bench drill over the weekend adn going to drill the holes for the bearings to fit into

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                  • #39
                    Re: Hard Time's build diary

                    Sabertooth 2x25a came today, hopefully over the weekend assemling the robot.

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                    • #40
                      Re: Hard Time's build diary

                      my robot is now fully built and running. I'm using a lesd acid at the moment, but would battery be good(it is shown in a set but i would buy the battery on its own:
                      http://www.centuryuk.com/ewcommon/tools ... artid=3618

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                      • #41
                        Re: Hard Time's build diary

                        cool

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                        • #42
                          Re: Hard Time's build diary

                          Those batteries should be fine for running your robot. They're pretty much the norm for people who haven't gone down the route of lithium batteries. I tend to go for packs around the 3700mAh mark but that's just personal preference (and dependent on what weapon I'm running); 3300mAh would certainly see you through a battle though.

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                          • #43
                            Re: Hard Time's build diary

                            got a bit of an old metal locker, i'm using it for the bumper as the points on the front are getting mangled and bent.

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                            • #44
                              Re: Hard Time's build diary

                              Got some metal from school, which i'm using to strengthan the lifter.
                              Making the limit switches circuit at the weekend;
                              Also got the 3300mAh Ni-Mh battery from century -uk

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                              • #45
                                Re: Hard Time's build diary

                                I demand pics!

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