Boring Brick

[mrsam]

That's a great idea I hadn't thought of that, might give that a go

[Flag Captured]

It's pretty tough to find a name, but what I did was just keep an eye out for cool words that pop up or song/album titles generally go well. Mine got its name from two sources funnily enough, one was an album called Hardwired and when I got round to building the thing properly the components were all hard-wired together so it couldn't be anything else really!

Either that, or try searching for synonyms on Google - I typed 'axe synonyms' in, and one of the suggestions was Abandon (from 'to axe' something) which actually sounds a really cool name, if it's not taken!

[mrsam]

The name will have to change i agree, i'm just finding it hard not to think of something predictable or too clichéd. If Tomohawk wasn't already taken i would have had that because of the shape of the axe but alas back to the name drawing board.

[Ellis]

As others have said, this is far from a boring brick. I love the shape!

edit: also, I agree with others about it being fine just running into the 15mm HDPE. With a smooth shaft like that I don't think you'll see any wear at all across the lifetime of a robot.

[mrsam]

Finished bolting the wheel guards together, i had intended to finish the axe mounts but i've been called into work early. I just couldn't resist taking a picture with the axe on it though,

[mrsam]

Awesome thanks for all the advice

[RogueTwoRobots]

15mm HDPE should be fine, as should running it without bearings. Obviously since it's an axe, the shaft won't be rotating as much as it would if it was a spinner so it shouldn't trouble you really, but it will wear down over time. As Mario said, when that happens, you can then look at bushings/bearings but, to be honest, you'll probably end up moving onto a new chassis long before that happens.

[mrsam]

I've got 15mm of hdpe, hopefully that would be enough? I might just run the shaft straight into the bulkheads and if im not happy ill press some bearings in

[maddox10]

HDPE isn't a bad bearing material in itself, and with 20mm thickness, just drill a 20mm hole and put the shaft directly in that. If it wears out, you can put in bushings or bearings. Just make sure there is enough material all alround, otherwise it will rip trough.

[teamshock]

The orginal Inertia XL used a 20mm bolt as the shaft running directly on the 20mm HDPE Bulkheads and lasted 2 years in this configuration, the second one had bearings press fitted into the bulkheads but these needed retainers as they had a habit of falling out.

The newest one is all Aluminium so a different structure entirely.

[Eventorizon]

Inertia XL ran into Nylon bulkheads with a 20mm bolt. With HDPE you really aught to use bearings or bushes as the HDPE will wear away quickly if you don't where as nylon is harder and designed to have things slide against it.

[Flag Captured]

I'm led to believe that Inertia XL just had the shaft run straight into the HDPE bulkheads for its spinning disc, and if that's true I'd guess that you wouldn't need bearings for an axe but don't quote me on that!

Edit: Of course, you need to make sure that your bulkheads are thick enough, I think they're usually about 20mm thick for spinners but again, don't quote me on that

[Mega Masher]

Press in the bearings

[mrsam]

Made a start on the axe supports today and im not sure whether to have bearings pressed in or to just have the shaft run straight into the hdpe bulkheads, what would people recommend?

[mrsam]

Thanks guys, yes axe is still going on when I get round to it and at the start it was supposed to be just a brick but it evolved a lot