Mini stock bearing assembly and sentry gun turret example craft.

[Majorjim!]

Hi all,

Here is the bearing I showed on the WIP thread.

I included an example craft that uses the bearing as a turret that can swivel and pitch up and down.

It is quite fragile even though it is stable and reliable in normal usage. I don't think it will work as a helicopter bearing as my tests didn't go well. It is uncontrollable and pulls itself apart if you try to maneuver it.

Its the smallest bearing I have seen and the pivoting is really cool though and it works upside down too.

When you construct something above it try to keep the center of mass close to the center of the bearing. It is quite forgiving though.

And don't swivel when at full pitch.

I can imagine it being a very cool crane for loading and unloading things or as Snuggler suggested a rotating crew cabin on a station or large craft.

Anywhoo, have a play with it and see what you can come up with.

DOWNLOAD MECHANISM ONLY

DOWNLOAD TURRET EXAMPLE CRAFT

If anyone uses it a nod to me for the bearing is all I ask.

MJ

Edited January 10, 2015 by Majorjim

[Yukon0009]

Time to implement this on my R4 Hoverfly!

But in seriousness, this is awesome.

[gGATORr]

Hooray! Another step forward in stock rotation technology! Well done!

[Majorjim!]

Time to implement this on my R4 Hoverfly!

But in seriousness, this is awesome.

Cheers dude, let me know if you have any issues.

MJ

[Yukon0009]

Well, it's a bit too big, but I have an idea.

[Majorjim!]

Well, it's a bit too big, but I have an idea.

,

Can't wait to see what you come up with matey.

Edited January 10, 2015 by Majorjim
I'm not an african american rapper.

[LABHOUSE]

Wow, how long did it take.

[Majorjim!]

Wow, how long did it take.

Hey man, I have been playing with it on and off for a few weeks now.

It works in micro gravity and upsidedown, just need to come up with a cool application for it!

[gGATORr]

Hey man, I have been playing with it on and off for a few weeks now.

It works in micro gravity and upsidedown, just need to come up with a cool application for it!

Gunship turret? I feel like this would have been perfect for the turret bearings.

[Majorjim!]

Gunship turret? I feel like this would have been perfect for the turret bearings.

I just saw that! You can give it a go man it would be awesome! Let me know if you have issues as I know the thing inside out and exactly what it can and cant do.

[LABHOUSE]

I still have no idea how this works after dissecting it...

[Majorjim!]

I still have no idea how this works after dissecting it...

The rotating core is the two small adapters and a little stack of cubics. There are wheels pressing against the top and bottom adapter equally.

And wheels pushing into the top and bottom corner equally. This holds the core steady and the wheels move against the core. Also the suspension keeps them in constant contact.

[gGATORr]

Just downloaded it and gave it a whirl. literally. And I must say, I'm even more impressed by how smoothly it operates! Very fine engineering. The only downside is the part count:(

[Ikaneko]

I still have no idea how this works after dissecting it...

Magic! 10 chars.

[Majorjim!]

Magic! 10 chars.

lol

yeah part count is around 90.. You could try reducing the symmetry amount. It may still be stable.

Edited January 10, 2015 by Majorjim

[Guest]

Wow, elegance and precision

Too bad it's fragile

What do you think of this for a rotor?

(8 langing gear

Stayputnik

8 landing gear)

Edited January 10, 2015 by RevanCorana

[LABHOUSE]

The rotating core is the two small adapters and a little stack of cubics. There are wheels pressing against the top and bottom adapter equally.

And wheels pushing into the top and bottom corner equally. This holds the core steady and the wheels move against the core. Also the suspension keeps them in constant contact.

I know the spinning, just not the tilting... magic theory accepted.

[Majorjim!]

I know the spinning, just not the tilting... magic theory accepted.

The tilting is due to the wheels suspension and the fact that they stay in contact with the surfaces.

Wow, elegance and precision

Too bad it's fragile

What do you think of this for a rotor?

Looks interesting, I will have a look at it.

Edited January 10, 2015 by Majorjim

[Guest]

I knew there was something spherical about it xD;

So can we say that, cubic struts are actually kinda cylindrical?

[Majorjim!]

I knew there was something spherical about it xD;

So can we say that, cubic struts are actually kinda cylindrical?

No they are modeled square.. An earlier version of my bearing had wheels 90 degrees to the cubics and they would ride the edges. I got around it by spiraling cubics clipped into each other so as to make more edges for the wheels to ride on.

By turning the wheels to 45 degrees they are in contact with both the cubics and the adapter base so the spiral of cubics isn't needed.

[Guest]

No they are modeled square.. An earlier version of my bearing had wheels 90 degrees to the cubics and they would ride the edges. I got around it by spiraling cubics clipped into each other so as to make more edges for the wheels to ride on.

By turning the wheels to 45 degrees they are in contact with both the cubics and the adapter base so the spiral of cubics isn't needed.

Ok interesting, maybe this doesn't help either at higher RPM (this and the low speed tolerance of the small rover wheels)

Here's a more proper version of the spherical core rotor idea, and a short vid too just to show that it is quite stable at high rpm and that the blade can be controlled by tilting the main body.

https://www./?bwrpwjvmi6zp3b4

[Majorjim!]

Ok interesting, maybe this doesn't help either at higher RPM (this and the low speed tolerance of the small rover wheels)

Here's a more proper version of the spherical core rotor idea, and a short vid too just to show that it is quite stable at high rpm and that the blade can be controlled by tilting the main body.

https://www./?bwrpwjvmi6zp3b4

LOL cool. That was your stayputnik bearing right? I've seen landing gear used in bearings as they have no max speed and are strong.

My aim with this one was to be as small as possible.

[Starwhip]

Only problem that I can see is that you can't timewarp.

Argh, the limits of stock!

But other than that, very cool!

[manni01]

I'm going to try this idea, but with the bigger more durable wheels. Maybe that could make a Heli.

[Gojira]

Only problem that I can see is that you can't timewarp.

Argh, the limits of stock!

But other than that, very cool!

Add a docking port, dock during timewarp, undock as necessary?