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Re: 360 - mini hypnodisc
stuff for a new beetle weight ordered from robot market place. Just need to decide what setup to use on the weapon and ill start designing a chassis for it all Probably going to be a brushless drum with the motor built into the drum to save space.Comment
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Re: 360 - mini hypnodisc
the above videi dave says this
This video contains content from Channel 5, who has blocked it in your country on copyright grounds.Comment
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Re: 360 - mini hypnodisc
I know yeah. Glen uploaded it for me was 360s bits from gadget show- i guess someone grassed him up and he had to take it off. never mind
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Re: 360 - mini hypnodisc
Thanks to Tim for designing my disc for me for my beetle- would of done it myself but dont have the right program to design a single tooth blade, should be around 130grams when done and go at 15000rpm, 20mm wide p20 tool steel, getting Kenny to machine it when he gets time as i was really pleased with the job he did on 360's blade;
Ed's machining my new motor mount for 360s disc Tuesday hopefully ready in time for gadgetshow live.. pics of that when its done
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Re: 360 - mini hypnodisc
new motor mount done thanks to Ed..i designed it to support the front of the motor so the front face of the motor (the non turning part) is counter bored into the mount, meaning its abit better supported and acts as a nice heatsink, it also has two holes drilled for weight loss which will aid in cooling for the motor as they line up with holes in the front plate.. it also has a bearing mounted in it to take any force away from the bearing in the front of the motor.. just got to make a bigger shaft for the motor now to fit in nicely.
also found a tiny valve in my draw of odd bits and made a little valve block for it.. think my beetlweight will be pneumatic.. decided its impossible to make a robot thats 1.3kg that will do damage to thick armour ive seen on a few of the beetleweights already built.. and no one else has made a flippy one yet
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Re: 360 - mini hypnodisc
Mmm, sexy motor mount
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Re: 360 - mini hypnodisc
Good init! Would have put a nice chamfer around it if I had more time, maybe at some point in the future when Im not hungry after work.Comment
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Re: 360 - mini hypnodisc
lol i hope that dinner you had to leave for was really nice.
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Re: 360 - mini hypnodisc
Replacement motor axle done;
Also hadnt weighed it all together in ages, so stacked up all the parts and put it on the scales..
350g underweight.. think i might upgrade the drive next and go upto 6s lipo for abit more speed and power so i can use the magnet. should be around 13.5kg then.Comment
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Re: 360 - mini hypnodisc
Right got the new motor in along with the castle creations ice 160 esc and did a few spinup tests and noticed it wasnt that great, so hooked it up the built in data logging to my laptop and messed about with the motor and current settings and now it seems spot on, got to give it to the castle creations guys they've built one of hell of an esc and im really happy with it so far. Did a quick spin up test so i could see the graph, below is a quick shot of it.
That was spinning the motor up, then down to half speed, back upto full.. then down to nothing upto full really fast so i could see were the current limiter kicked in.. and true to the programing in the esc it cuts in just were i set it to...
But as you can see the continuous speed of the disc (you can enter your gear ratio so it works it out for you) is just under 4300 rpm... but it was still going up a little when i took the throttle off and the current needed to spinup is 256amps... not surprised really. Also it shows the voltage drop of the lipo is negligible so im happy with that's performance.
To anyone thinking of going to brushless i would highly recommend this esc!
Next thing i want to do is do a spin up to full speed test, run it there for 10 seconds then spin it down to see what the current and voltage evens out to.. Id also like to have a look at it after a fight to see how things are performing. At the moment its looking like i could possibly do with a slightly better lipo pack, but the one Ive got will be fine for this weeks show at gadgetshow live.
...i better stop messing about with data logging and put the thing together
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Re: 360 - mini hypnodisc
Done another spin up test and this is the graph;
I span it up a bit slower this time so the peak current draw isn't as high and the spin up time is a lot slower.. but the graphs easier to read, i kept it at full whack for 10seconds so i could see what everything leveled out to...
It evened out to a continuous current draw of 44amps which i'm happy with and this time the top speed reached 4663 RPM
Pretty chuffed..
Also the self-righter should be working for this weekend...
Next thing to do is properly combat test the controller!Comment
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Re: 360 - mini hypnodisc
Ed said I could use DB5 to test against 360 on the sunday. And John Lear has asked to film Beauty fighting it on one of the weekend days.
(well, i think ed may have said it CANT fight 360, but i dont belive i heard him right
)
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Re: 360 - mini hypnodisc
just remember if the link comes out please STOP
but will test friday i belive little spinner is there
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Re: 360 - mini hypnodisc
john its a 3minuite fight... 3 minutes means 3 minuets link or no link
..
So can me and Little spinner team up against beauty?..if your so good you'll beat us both easy
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