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Thread: Build Log - Bread Dead Redemption (FW) - First Build.

  1. #1
    Intro

    Starting the build log here after about a year of planning, procrastinating and general scheduling issues.

    So I decided to chase the childhood dream of building a fighting robot at the age of 25. After chatting to a few people at Extreme Robots events, I'm so excited to get going. I'm pretty much an engineering novice, so I'm learning as I go. I figured my first attempt would be terrible, so I decided to base it on a toaster. That way if it goes horribly wrong, it would be more amusing than tragic.

    Now, I know this is a terrible idea. The toaster is too small and very flimsy. The further I plan, the more complicated it seems to be and sometimes I wish I could just build a normal wedge bot. However, many of my friends who know of this project think it's hilarious and are now expecting the toaster to be a thing, so I can't give up on it now!

    Parts

    As a starting point I have 2x 18V drills from the majestic middle isle of the local Aldi, a Flysky FS-T4B transmitter and receiver, Sabertooth dual motor speed controller and all the other general bits listed in the Robot Wars Haynes manual (minus the weapon parts). Also, not to forget the Tesco own-brand four slice toaster, the star of the show.

    Plans/Issues

    As things stand, I'm working on the following issues/objectives:


    • Weapon-wise, I have an industrial metal dustpan that I'm planning on using as a scoop. I also have a scooter motor for an axe (mostly so I can say it is the best thing since sliced bread, I'm doing this for the puns really), but I'm not sure if I should walk before I can run and focus on just building something that runs and pushes for 3 mins. However, adding the bulkheads for an axe mechanism would make more much needed space inside the robot, as I could mount the motors under/through the bulkheads.




    • Battery issues at the moment are that I'm rather nervous around Li-Po batteries as a first time builder. No doubt I will take the leap eventually, but testing with the drill batteries first seems like a good plan.




    • Toaster is too small and obviously not suited to robot combat. Any suggestions to help reinforce/expand this would be appreciated.




    • I cheaped out on the transmitter I bought, not sure if it is suitable. May buy another of the more commonly recommended ones at a later date.



    So that's where I'm at! Building starts today, just trying to get the wiring and motors working on a piece of MDF before I actually attempt to build a working robot. Any feedback/assistance/encouragement would be appreciated!

  2. #2
    Ocracoke's Avatar
    Team Kaizen

    Welcome to the forum!

    • Weapon-wise, I have an industrial metal dustpan that I'm planning on using as a scoop. I also have a scooter motor for an axe (mostly so I can say it is the best thing since sliced bread, I'm doing this for the puns really), but I'm not sure if I should walk before I can run and focus on just building something that runs and pushes for 3 mins. However, adding the bulkheads for an axe mechanism would make more much needed space inside the robot, as I could mount the motors under/through the bulkheads.
    Yeah, I would get something moving first and then get a weapon in. Surviving 3 minutes in the arena is an achievement on its own. Yes to planning ahead though, never hurts to do so.

    • Battery issues at the moment are that I'm rather nervous around Li-Po batteries as a first time builder. No doubt I will take the leap eventually, but testing with the drill batteries first seems like a good plan.
    Nothing inherently wrong with drill batteries though it is worth noting if the batteries from the drills are Lithium batteries as well as there are some extra rules surrounding the use of LiPo (note: not LiFePO4 batteries) in fighting robots, it is worth checking the rules for these and build with them in mind (again, forward planning). The only thing I can think might be a problem is the battery capacity but for a relatively simple robot, this is unlikely to be a problem.

    • Toaster is too small and obviously not suited to robot combat. Any suggestions to help reinforce/expand this would be appreciated.
    Well you realised this before going in, better than my first robot with a lampshade as a shell. I would cut slots into the toaster and mount HDPE panels to it (you can get this from directplastics.co.uk) lengthways for a frame and then extra HDPE around the sides for impact absorption.

    • I cheaped out on the transmitter I bought, not sure if it is suitable. May buy another of the more commonly recommended ones at a later date.
    I've used a variant of that transmitter before on a Beetleweight robot, it is OK. You'll find that the Sabretooth will do the channel mixing for you to give you forwards/backwards and turning on both motors but if you wanted to use different, single channel ESCs, you'd need a transmitter with mixing on it, such as the OrangeRX transmitter.
    Team Kaizen - Build Diary for all the robots

    AW: Amai, Ikari, Lafiel, Osu, Ramu
    BW: Shu!, The Honey Badger
    FW: Azriel
    MW: Jibril, Kaizen

  3. #3

  4. #4
    Ocracoke's Avatar
    Team Kaizen

    Sounds promising, can't wait to see it.
    Team Kaizen - Build Diary for all the robots

    AW: Amai, Ikari, Lafiel, Osu, Ramu
    BW: Shu!, The Honey Badger
    FW: Azriel
    MW: Jibril, Kaizen

  5. #5

  6. #6

  7. #7
    Ocracoke's Avatar
    Team Kaizen

    Hahhhaa. Oh dear. If Aldi won't take it back, sure someone here will have it.
    Team Kaizen - Build Diary for all the robots

    AW: Amai, Ikari, Lafiel, Osu, Ramu
    BW: Shu!, The Honey Badger
    FW: Azriel
    MW: Jibril, Kaizen

  8. #8
    Commendable. You'll go far.

    I don't think it's safe to try and dual wield these things, so now I've got to figure out how to return one!
    It's probably not safe, no, but it would look cool so don't necessarily write it off...

    Sounds like a good plan and congrats on the progress so far. If you fancy a deadline to motivate you I highly recommend signing up to a Robodojo event, not too far from you and you can enter the sportsman contest with minimal chance of your new machine getting trashed!

    Good luck and keep up the good work!

  9. #9
    Ocracoke's Avatar
    Team Kaizen

    If you wanted to come along to *a* robotics event, I am running the BotFest event on the 14th which is primarily an Antweight competition but we'll also have a static display of heavier weight robots as well. I'll definitely be bringing at least one Beetleweight, a Featherweight and a Middleweight, I'd be happy to talk you through them, how they were built, what parts were used etc.
    Last edited by Ocracoke; 31st August 2019 at 19:54.
    Team Kaizen - Build Diary for all the robots

    AW: Amai, Ikari, Lafiel, Osu, Ramu
    BW: Shu!, The Honey Badger
    FW: Azriel
    MW: Jibril, Kaizen

  10. #10

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