Self Righter ideas

[mattsdragons]

Anyone got any ideas for a dedicated self righter on a vertical crusher?

Had ideas involving high power servos and arms or drill motors with threaded rods etc but want to see what other ideas people have out there

[Ellis]

Re: Self Righter ideas

Depends on the shape of the machine, does it not? Venom self-rights in a way that I doubt Cobalt will eventually, for example.

Got pics of the robot concerned? What are the weight and size constraints?

[mattsdragons]

Re: Self Righter ideas

It's the 6wd crusher calumco was selling, was going to be the new pinsor before he sold it

[daveimi]

Re: Self Righter ideas

There's an American robot that uses a huge servo to self right. It's blue and is like an invertible pushy bot, it was built by teenagers etc but I can't find where I've seen it. But there's something to do with if it lands on end it ends up beached so they made a linkage powered by a servo to shove it back onto its wheels.

[harry hills]

Re: Self Righter ideas

It's the 6wd crusher calumco was selling, was going to be the new pinsor before he sold it

nice!

[mattsdragons]

Re: Self Righter ideas

Weight constraint is very little right now but would prefer it to be as light as possible, more weight for more hardox

[Ellis]

Re: Self Righter ideas

Ah, I see!

Well I'd suggest a system that self-rights you sideways, Hypno-disc style, as it'll be easier both power needed-wise and stability-wise.

In fact, Dave already had to go through this with 360, might be worth finding his thread and seeing how he did it.

Maybe one of those big Comodrill type things with the huge reductions would be up to it.

[psycho_fling]

Re: Self Righter ideas

id use a wire/cable that pulls when the claw goes down or up and then the self righter arm goes up so even when u dont need it it will activate but saves on weight

[plargen]

Re: Self Righter ideas

you could try having a arm that's linked in with the crusher so as the crusher goes down the self righting arm goes up ........... but a couple of powerful servos would probably be lighter

[mattsdragons]

Re: Self Righter ideas

http://www.rc-fever.com/power-hd-analog ... rrency=GBP

Leaning towards 2 of these attached to an arm or something? Or could one be sufficient, just though 2 so there was less strain on the servo as the stall is 17kg

[Eventorizon]

Re: Self Righter ideas

I had thought of a way to self right my original conker design.

Its basically a spring loaded pin on one side of the robot that you crank down using a small motor, you then fire it and the pin slams into the ground turning the robot over. It does have flaws but it can be made very light weight and in a very small space which seems to be what you are after.

Maybe that will spark off some other ideas :-)

[Kenny]

Re: Self Righter ideas

[quote=mattsdragons]http://www.rc-fever.com/power-hd-ana...<br /> Leaning

[Mouldy]

Re: Self Righter ideas

Servo won't work... 17kg is rated at 10mm from the centre of the output shaft... Devide that over the length of your arm or whatever your having and the force becomes pretty weak.

360s setup is pretty complex due to it having to fit in a wierd orientation... Astroflight coupled to a custom 2 stage worm reduction and a 3rd stage spur gear setup giving it 900:1.

Glens robot deamon in aus has a pretty slick setup that works well... I'll let you google it.

Maybe one of the lowest geared banebots planetary p60 gearboxes could also work.

[Mouldy]

Re: Self Righter ideas

Beat me to it lol

[mattsdragons]

Re: Self Righter ideas

Kenny: cheers for such a detailed reply, realised I failed to take that into account

Dave: I'll check out that system, see what's what on it yet I'll look into using one of those or something similar, not sure what yet but these things take time

Cheers all