HardWired II

[Eventorizon]

Good man. We're a bit of a rare breed unfortunately (or fortunately, as it means more Pepsi for us!)

All hail Pepsi Max!!!

[Flag Captured]

Finally other Pepsi lovers! I get an unlimited supply at work

Do want.

Surprised there's so many Pepsi fans, I'm among my own people at last haha!



Oh and Nick, I'm keeping the RPM a little lower I think, I wanted to go silly speeds but I've been chatting to Harry Hills, who said it's probably best to keep it slower and keep the reliable hits, and have it running an NTM 50-60 instead. Not ruling out the crazy fast disc yet, but it might not make it into the first version at least...

[overkill]

I agreed with Harry; there is no point to increasing the rpm past a certain point. The NTM motors have a great reputation or check out the SK3 motor range, which comes from the same factory as top Euro brands like Hacker. With the NTM 50-60 380KV motor @ 8S, you will only be getting 11K rpm without load. Under load and with a bit of gearing down, you might not get even 5K at the disk.

The HeliDrive SK3 4962-530kv motor will give you 15K rpm without load and is the same size as the NTM 50-60. It also has more poles which will give it a bit more torque at start-up and reduce the spin-up time.

[Revsmin]

I'm with Nick here, that SK3 4962 looks perfect for what you want. It also fits perfectly into the model, giving an extra ~400g and 2cm of space behind the motor.

[Mouldy]

Whats the weight of the disc? That needs taking into consideration before you decide on motor/gearing.

[Revsmin]

At 150mm diameter, 20mm thick, about 1.2kg.

[Mouldy]

Single tooth, 5000rpm would give you the reliable hits your after... with a disc so light id aim for 2:1 for a quick spinup.... running a big 6s pack for drive and weapon...450kv motor ish would work well, and give out some decent impacts.

Cokes better

[Mouldy]

Or if you want to use the sk3 4962 530kv youd be getting around 5500 at the weapon. Wont be the spinner to end all spinners but it will be good... with a robot like your design its all about balance...to much energy in the disc and it wont drive very well and IMO a good drive is more important than an overpowered weapon

[Revsmin]

IMO a good drive is more important than an overpowered weapon

Says the man who built 720 XD

[Mouldy]

Just went to show this year though. Kept loosing because my drive kept failing lol

What i mean goes for vertical discs more than drums... they have more of a difficult time trying to turn without gyroing which allthough looks cool i imagine its frustrating to drive.

[Revsmin]

Ah, but that's why the base is stainless, magnets

Cokes better

Aldi store brand M8

[Mouldy]

Be interesting to see the effects magnets have on the brushless drive

[Garfie489]

Coca-Cola is better than Pepsi, but Pepsi Max is better than Coke Zero. - Both Diets are just horrible.

If i am going out i prefer Coca-Cola - but in my home my mum doesnt let me have it so i prefer Pepsi Max. - Anyone had Coca-Cola out of a glass bottle before?

Nice robot btw :P

[Flag Captured]

Shall have a look at those motors, cheers! Still researching into what will be the best balance between torque and speed, I want plenty of power (should be able to use it thanks to the magnets, but we'll see) but not something that's going to be inconvenient to use. The idea of the 30-something thousand RPM single tooth was hilarious and would be lethal theoretically, but I have doubts about how it'd perform in practise...

Really, the idea is a good spinner on a good rambot, it's unrealistic to assume it'll be an amazing rambot and/or an amazing spinner (even more so considering I'm building the thing...) hopefully brushless can help that along a little but I guess we'll see how it works. Brushless and magnets should be interesting I agree Dave, shouldn't be that different from what you'd expect from brushed drive I hope, but it's still pretty much unknown at the minute. Don't know if anyone uses sensored outrunners for drive, or how they perform but the theory says it'll work alright. Will be posting results once I've got a pair ordered for HardWired 2!

Oh and Pepsi Raw, drink of the gods Until they stopped production of it...

[Flag Captured]

Featherweight shenanigans update!

First, HardWired II has been retired from competition, I'll still have it as a whiteboard machine (come at me, spinner bros) but a new one is sorely needed. Can't say too much yet, because it really hasn't been designed extensively, but it'll be running sensored brushless outrunners of the so big it couldn't possibly be a good idea variety, along with much larger wheels than before, HDPE armour, Hardox frame and most likely Hardox scoop to match. Shouldn't be much bigger than the old one, but it does need to be larger to fit everything in. Oh, and lots and lots of shock mounting, after the 720 incident...

Next, HardWired 3 is on hold, Hw2.2 is going to be my main machine for next year, I see no reason why Hw3 would need to be a thing yet. Much as I'd love active weaponry, it'll have to wait for now.

HardWired 1, the flipper, will be going to next year's champs, funds providing. I won't be driving though, my friend will who's been interested in competing, and they insist on having a flipper... Can't say I blame them looking at the top 4! Plan is to make this a Wheely big cheese style machine, designed just for launching stuff high because that's really fun. Mostly HDPE, not sure on the rest so far. Massive wheels though.

Balsa Steel is nearly finished and will be making it's debut at Barnsley, though I have to stress that under no circumstances must anyone push me onto the flame hazard, got it? ...guys?
Should be a fun little machine, 2WD drill box with mostly wood armour, not much innovation but it'll make a heck of a display!

Finally, Riptide has been planned somewhat for the future, designing it as almost a one hit wonder, 7kw motor Buzzbar style, toothed bar... Should be hilarious. Or break itself. Or both. Truth be told, it actually looks a little like NST but that's going to change soon, need some way of keeping it really stable on the ground. Tempted to suggest hardox and magnets, because they solve everything as we already know (I'm kidding, I haven't a clue yet)

So yeah, that's where things are at the minute, progress is halted at present due to a lack of funds, but HW2 and Balsa Steel will be making it to Barnsley, all going well.