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SpudFiles Forum Index » General Spud Cannon Related » Quality lathe?
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FordGtMan
PostPosted: 06/02/2008 2:24 AM    Post subject: Quality lathe? Reply with quote

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I have always had a fascination of making my own stuff with machinery and i was looking around to see how much a mini lathe and everything would cost. I was looking at ebay and found this odd piece of equipment and i have never seen it before. Have any of you recognize this thing and would it be a good machine to have for the price? If it turns out to be good, looks like a good addition to the shop.

http://cgi.ebay.com/MINI-MULTIPURPOSE-LATHE-6-IN-1-MACHINE_W0QQitemZ38 0030523752QQihZ025QQcategoryZ12578QQssPageNameZWDVWQQrdZ1QQcmdZViewIte m
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psycix
PostPosted: 06/02/2008 5:07 AM    Post subject: Reply with quote

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That thing looks awesome to me!
The only thing holding me back is the ability to lathe no more then 20mm (metal) and 45mm (wood).
If I ever buy a lathe I want to machine alluminium pistons 50mm+ with it.
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Hotwired
PostPosted: 06/02/2008 6:51 AM    Post subject: Reply with quote

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I don't know why you'd want an aluminium piston anyway. It'll always be of greater mass than a plastic one.

If you've got a valve design which is like Solars (two disks and a rod) then metal has more attractions but for pistons which are basically cylinders you shouldn't kid yourself you need a metal slug in there.

45mm is plenty for smaller bored cannons, I'd not believe any lathe that fits together like lego would have especially high precision but probably good enough for anything I'd make Smile

If it was around here for the equivalent price of £150 I'd get one. I'm currently looking at the costs of getting some valve bits machined and it'd be rather more than that.
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FordGtMan
PostPosted: 06/02/2008 23:41 PM    Post subject: Reply with quote

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Well Damn, i just found out it can only be shipped to Australia... Damn... Mad Mad Mad Crying or Very sad
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psycix
PostPosted: 06/03/2008 6:16 AM    Post subject: Reply with quote

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Hotwired wrote:
I don't know why you'd want an aluminium piston anyway. It'll always be of greater mass than a plastic one.

If you've got a valve design which is like Solars (two disks and a rod) then metal has more attractions but for pistons which are basically cylinders you shouldn't kid yourself you need a metal slug in there.

Ofcourse the piston would not be solid, but drilled out as much as possible.
Also, alluminium is stronger and wont break as easily on extreme pressures.
A piston slamming back and forth in a 35bar automatic gun (one of my possible future plans, being about 1 or 2 years probably) needs to be constructed out of a very strong material right?
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Hotwired
PostPosted: 06/03/2008 8:05 AM    Post subject: Reply with quote

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Of course, I'd use something like nylon or UHMWPE but thats just me.
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psycix
PostPosted: 06/03/2008 8:12 AM    Post subject: Reply with quote

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Oh, and also, besides machining pistons, you might also machine projectiles!
And then you will want to machine steel dont you? Wink
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