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Thread: Team Kaizen - Kaizen

  1. #31
    Ocracoke's Avatar
    Team Kaizen

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    Michael
    Robots
    AW: Osu, Ikari, Ramu / BW: Shu!, ??? (planning) / FW: The Honey Badger / MW: Kaizen
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    Somewhere on the Wirral
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    725
    So a little change, I've gone back to the CIM motors I was originally planning to use for this and there'll be a little bit of adjustment in the sizes.

    I'll be releasing a drawing of what it should end up looking like for Grantham and then onwards to Stevenage. Provided The Honey Badger doesn't get too bashed up at Manchester, I can see no reason why Kaizen could not be mobile and running before Grantham. It may end up being Tanto v6 sized though
    Last edited by Ocracoke; 17th April 2018 at 01:32.
    Team Kaizen

    AW: Osu, Ikari, Ramu
    BW: Shu! (Build Thread)
    FW: The Honey Badger (Build Thread)
    MW: Kaizen (Build Thread)

  2. #32
    Ocracoke's Avatar
    Team Kaizen

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    Michael
    Robots
    AW: Osu, Ikari, Ramu / BW: Shu!, ??? (planning) / FW: The Honey Badger / MW: Kaizen
    Location
    Somewhere on the Wirral
    Posts
    725
    So The Honey Badger got trashed at Manchester but I am determined to get Kaizen mobile for Grantham. Polycarbonate base plate and HDPE bulkheads are on order and heading over to me tomorrow. I'll be outfitting this one with 6mm stainless steel all around (given how heavy Tango's lid was at Manchester, I don't think I'll have any trouble making the lower limit now :P).

    I had bought a pair of CIM motors for this with the intention of getting either 4:1 or 12:1 gearboxes for those but thinking about it, I might go back to the 500W motors currently fitted given that during Manchester, I learned a technique for securing the hubs to wheels which I wasn't sure if it would work but seemed to quite nicely. Need to figure out a way to get the nut off the motor without a vice though :S
    Team Kaizen

    AW: Osu, Ikari, Ramu
    BW: Shu! (Build Thread)
    FW: The Honey Badger (Build Thread)
    MW: Kaizen (Build Thread)

  3. #33
    Retroman's Avatar
    Roboteer

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    Paul H
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    Pullover V2 (AW), Leopold (BW) & 1/3 of a Feather (Pushover)
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    Depending on if you can wait or not I can bring a vice to the social, it's not attached to anything at the moment so it's no trouble?

    Edit: if you want to get cracked on, I swear by channel-lock type pliers (also called box joint or water pump pliers) they can hold anything that fits in the jaws. https://www.google.com/search?ie=UTF...nel+lock+grips
    Last edited by Retroman; 25th April 2018 at 17:58.

  4. #34
    Ocracoke's Avatar
    Team Kaizen

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    Michael
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    AW: Osu, Ikari, Ramu / BW: Shu!, ??? (planning) / FW: The Honey Badger / MW: Kaizen
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    Somewhere on the Wirral
    Posts
    725
    I have been using a pair of Water Pump Pliers + Mole grips already so yeah, bring your vice with you to the next one if you can. I can hold off until the next social, got plenty on with building the bodywork
    Team Kaizen

    AW: Osu, Ikari, Ramu
    BW: Shu! (Build Thread)
    FW: The Honey Badger (Build Thread)
    MW: Kaizen (Build Thread)

  5. #35
    Retroman's Avatar
    Roboteer

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    Paul H
    Robots
    Pullover V2 (AW), Leopold (BW) & 1/3 of a Feather (Pushover)
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    Gtr Manchester
    Posts
    113
    Ah ok, she's stubborn then? Vice will be thrown in box along with my other stuff.

    Yeah man, the bodywork is both the fun and the infuriating, it's the cool looking Bit, but making it cool looking is the challenge ha

  6. #36
    Ocracoke's Avatar
    Team Kaizen

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    Michael
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    AW: Osu, Ikari, Ramu / BW: Shu!, ??? (planning) / FW: The Honey Badger / MW: Kaizen
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    Somewhere on the Wirral
    Posts
    725
    I suspect it might be a nyloc nut.

    The chassis panels/bulkheads arrived today and not going to lie, it is a squeeze, especially when you consider the polycarbonate base panel is 500mmx250mm big. The top panel covering the two bulkheads is 100mm wide for reference. There should be two outer panels at the edge of the base panel as well.

    DSCF6339.JPG

    You can see the two 500W scooter motors on there and one of the CIM motors on there along with a space as to how big I think the gearbox is. Definitely going to have to vertical mount the ESC, batteries and radio gear on the middle bulkhead. I could get some more space by moving the motors to the edge of the panel but it would only increase the centre space for the weapon and expose the gearboxes to the outside world which, obviously, is not good.

    I'll be marking out where the cuts need to be made for the bulkhead grooves/motor mounts but I need to make a final decision on the motors. The CIM motors simply allow for more space but are smaller and should be less powerful as a result. Anyone well versed in these to qualify that thought?

    The other thing to consider is that because the CIM motor, even with the gearbox attached, is smaller and lower to the base plate than the scooter motors, the wheel sizes change but because the shaft changes, I can work with the shafts from a Banebots CIM gearbox (https://www.robotshop.com/uk/banebot...gearbox-4.html or https://www.robotshop.com/uk/banebot...unt-12to1.html, likely the latter due to a similar output shaft RPM to the scooter motor). The scooter motor shafts will need a flat putting on them (which I know isn't ideal) so... choices.
    Last edited by Ocracoke; 26th April 2018 at 15:50.
    Team Kaizen

    AW: Osu, Ikari, Ramu
    BW: Shu! (Build Thread)
    FW: The Honey Badger (Build Thread)
    MW: Kaizen (Build Thread)

  7. #37
    Retroman's Avatar
    Roboteer

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    Paul H
    Robots
    Pullover V2 (AW), Leopold (BW) & 1/3 of a Feather (Pushover)
    Location
    Gtr Manchester
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    113
    Nyloc? Noooooo! what a pig, difficult to deal with without ruining anything... we'll manage at the social though.

    Those scooter motors look very hefty, personally I'd go for the power, but I can totally see the dilemma you have. Is the space in the bulkhead for weaponry? Will there be any 'dead space' you could sneak some componentry into? Just looking again, is there enough height to place to ESCs over the motors?

  8. #38
    Ocracoke's Avatar
    Team Kaizen

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    Offline
    Name
    Michael
    Robots
    AW: Osu, Ikari, Ramu / BW: Shu!, ??? (planning) / FW: The Honey Badger / MW: Kaizen
    Location
    Somewhere on the Wirral
    Posts
    725
    That'd fall in favour of the scooter motors if power was the outright concern because the figures I ran suggest the CIM motors, with a 12.75:1 gearbox on them, are running close to their maximum. However, Track-tion used CIM motors as well (through a 17:1 gearbox) and whilst I wouldn't call that quick, obviously was able to move 95kg happily so perhaps my mathematics are off.

    The ESC will fit vertically onto the bulkhead but the CIM motors will obviously provide more space, the batteries on the other side. The weapon motor will go underneath wherever the batteries are.

    Yeah, the scooter motors are 6.5kg each and are big. 22.4x15x13cm big. I still have the original 600mmx300mm panel which I can still repurpose for this but mount the motors more inboard to prevent the gearboxes from becoming a prime target.
    Last edited by Ocracoke; 26th April 2018 at 21:48.
    Team Kaizen

    AW: Osu, Ikari, Ramu
    BW: Shu! (Build Thread)
    FW: The Honey Badger (Build Thread)
    MW: Kaizen (Build Thread)

  9. #39
    Ocracoke's Avatar
    Team Kaizen

    Status
    Offline
    Name
    Michael
    Robots
    AW: Osu, Ikari, Ramu / BW: Shu!, ??? (planning) / FW: The Honey Badger / MW: Kaizen
    Location
    Somewhere on the Wirral
    Posts
    725
    So just tried with the 600x300mm polycarb base panel, The ESC fits "nice 'n' snug" horizontally on the panel now and the centre gap is about 50mm bigger to the point where it looks too big. However, I think if I want a no-nonsense weapon, the gap looks to be about right now because there needs to be room for the weapon mounts and so on. In other words, Kaizen just got wider by 100mm

    With regards to these nuts on the shaft (the output shaft looks to be about 10mm or 12mm threaded), I had another go of getting the nut off and I just can't. Contrary to what I said a few posts ago, I had a think about it and I really want to crack on with this and if the weather is good, tomorrow will be when the bulkhead panels start going together. I've ordered myself a bench vice and hopefully will have them off by the end of next week otherwise a nut splitter might be needed.
    Team Kaizen

    AW: Osu, Ikari, Ramu
    BW: Shu! (Build Thread)
    FW: The Honey Badger (Build Thread)
    MW: Kaizen (Build Thread)

  10. #40
    Ocracoke's Avatar
    Team Kaizen

    Status
    Offline
    Name
    Michael
    Robots
    AW: Osu, Ikari, Ramu / BW: Shu!, ??? (planning) / FW: The Honey Badger / MW: Kaizen
    Location
    Somewhere on the Wirral
    Posts
    725
    Good news, the vice isn't needed! I borrowed a whopping 30kg+ vice from my father in law and getting a 19mm socket on the end of my big torque wrench did the trick. My veneer gauge says the threaded part of the shaft is 9mm wide and the shaft itself appears to be 7mm. The bit of the shaft where the cog normally goes is 10mm at the flat edges.
    Team Kaizen

    AW: Osu, Ikari, Ramu
    BW: Shu! (Build Thread)
    FW: The Honey Badger (Build Thread)
    MW: Kaizen (Build Thread)

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