Hollow plastic spheres. Looking for.

[flying dog]

About the size of a tennis ball.

 

Needs to be openable and hollow, and resealable.

 

I'm guessing some toys would come in them, but I am not having any luck finding where I could get a couple of them.

 

 

[crashley]

http://www.dhgate.com/product/wholesale-christmas-6cm-transparent-plastic/176312748.html#s1-5-1|2703504641

[fly_tornado]

install ebay on your computer, bound to have more balls than us.

 

 

[flying dog]

http://www.dhgate.com/product/wholesale-christmas-6cm-transparent-plastic/176312748.html#s1-5-1|2703504641

Nice but 100 minimum order is a bit over the top.

 

Thanks. Shall investigate further.

 

 

[Gnarly Gnu]

What diameter range is acceptable?

 

 

[flying dog]

Gnarly,

 

There is no real specs.

 

Tennis ball size is a good average.

 

I need the "Goldielocks" size: Not too big, not too small. Sort of thing.

 

So from golf ball to ....... 10cm diamater. Tennis ball seemed a good size to mention.

 

But! They need to be hollow, openable - if only once to do the "magic" to them, and not too expensive.

 

 

[old man emu]

OK. I'll ask the obvious question ... What are you going to do with them?

 

OME

 

 

[flying dog]

Sssssshhhhhh! Its a secret!

 

When I get it and have it working, I will show you the video which inspired me.

 

 

[Gnarly Gnu]

Perhaps what you need is a plastic aerial shell (fireworks), they come in two halves that clip together. There would be a small opening on one for the fuse, not sure if that's a problem. Could be welded over.

 

 

[flying dog]

Welded.... So it isn't plastic?

 

No problem, but now I'm interested.

 

What do they cost and where do you get them?

 

Example url to see picture/price.

 

 

[Gnarly Gnu]

Welded as in plastic welded that is. They are some moderately brittle type of plastic as they are designed to shatter. I just googled and found this picture (the plastic ones are on the right):

 

 

You only need a couple right?

 

 

[rgmwa]

I have a recipe for gunpowder and some ideas for a release mechanism if that would be useful.

 

rgmwa

 

 

[flying dog]

Gnarly,

 

Yeah, they look ok. Quickie: What are the ones on the left? Wood?

 

Wood could be glued.

 

So, it is possible for thin WOOD spheres also.

 

(Sorry, but I guess I need to keep an open mind.)

 

 

[Gnarly Gnu]

The ones on the left are pasted - kinda like paper mache really (French for "chewed paper"). You make these using kraft paper on a hemispherical former. Not as strong.

 

 

[flying dog]

Ooops.

 

Ok they won't work then.

 

 

[PA.]

Found some! At Coles supermarket in the Christmas area they are around 80 mm diameter and are $3 ea and include some useless Christmas trinket.

 

 

[rankamateur]

http://www.dhgate.com/product/wholesale-christmas-6cm-transparent-plastic/176312748.html#s1-5-1|2703504641

Very odd company Crashley, The link at the bottom of this page was knickers for an iPhone. http://www.dhgate.com/product/silicone-smarty-pants-apple-sexy-underwear/168799280.html

 

 

[flying dog]

PA,

 

Yeah, strange that.

 

I found (I think) the same thing in Target.

 

They are yellow and have "smilie faces" on them - right?

 

 

[flying dog]

Very odd company Crashley, The link at the bottom of this page was knickers for an iPhone. http://www.dhgate.com/product/silicone-smarty-pants-apple-sexy-underwear/168799280.html

 

Ya wadda?

 

 

[flying dog]

OK, "Next" question:

 

What "Shop" would I go to to get an old ball bearing which has failed?

 

Probably a bearing shop - right?

 

About 5 cm diameter.

 

Why?

 

Well as I now hope I have the sphere I Need, this is the video which inspired me:

 

 

I'm guessing syrup would work rather than honey.

 

 

[Gnarly Gnu]

Haha, neat. Many guys would aspire to own balls of steel (boom tish) but yeah as you suggest head to a bearing shop first & ask what they can do.

 

 

[PA.]

PA,

Yeah, strange that.

 

I found (I think) the same thing in Target.

 

They are yellow and have "smilie faces" on them - right?

Coles balls are clear.

 

 

[flying dog]

Oh, ok.

 

Thanks.

 

Shall look into them as well.

 

 

[planedriver]

Now you've got me thinking about other applications.

 

I once used a hydrualic brake attached to the gear rack on a big automatic sliding gate I supplied, which opened up a steep gradient. The reason for the brake was that in the event of the motor being dis-engaged while in the open position, about 400 kilos of wrought-iron gate would have raced down the slope to the closed position, taking out anything in it's path, with potential lethal consequenses. The hydraulic brake only allowed it to close slowly and 15yrs on still works like a charm.

 

Now i've got to make a magic ball to amuse the grandkids, to go along with my other party tricks.

 

Thanks for the idea.

 

 

[fly_tornado]

hope your grandkids haven't moved on from watching a ball roll down a book...