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Plasti Smithing...

Posted: Fri Mar 13, 2009 9:51 am
by Hubb
I was just looking over Instructables and found this:

http://www.instructables.com/id/HomemadePlastic/

It see this as having many applications in this hobby.

Posted: Fri Mar 13, 2009 11:59 am
by jrrdw
To much possibilities for inconsistencies for my taste. Voids, weak spots due to impurities in different plastic bags. Fun for crafts but I my self wouldn't trust it for anything important.

I'll give you 8 out of 10 on the find! :D

Posted: Fri Mar 13, 2009 12:02 pm
by daberno123
That looks like it would make a reasonable vortex block.

Posted: Fri Mar 13, 2009 12:16 pm
by SilentCyan
reminds me of the link someone around here has in their sig about making the styrofoam and potato plastics

Posted: Fri Mar 13, 2009 12:39 pm
by john bunsenburner
I wrote:Ah, that is me ou talk about!

http://www.instructables.com/id/Make-Potato-Plastic!/
http://www.instructables.com/id/How-to- ... 2-plastic/


The first one is good for large amounts, for example i am using it to fix m chamber in m stock so it doesnt flop around, the seconds one is for smaller amounts, the aceton can be recovered, like making bullets. Gasoline also works.

Posted: Fri Mar 13, 2009 12:51 pm
by jrrdw
john bunsenburner wrote:Ah, that is me ou talk about!

http://www.instructables.com/id/Make-Potato-Plastic!/
http://www.instructables.com/id/How-to- ... 2-plastic/


The first one is good for large amounts, for example i am using it to fix m chamber in m stock so it doesnt flop around, the seconds one is for smaller amounts, the aceton can be recovered, like making bullets. Gasoline also works.

Edit: PCGUY told me once about a trade mark inside the url that makes a post disappear. I couldn't find it myself but I removed the url tag from John's post and it showed up???

Posted: Fri Mar 13, 2009 12:55 pm
by john bunsenburner
wait wait, what are you talkign about Jrrdw?

Posted: Fri Mar 13, 2009 4:12 pm
by suburban spudgunner
This could be useful for making custom parts for my spudgun (i.e. useless cool stuff, nothing that would be under pressure or heat).

It would just need a good paint job...

Thanks for the link.

Posted: Fri Mar 13, 2009 4:19 pm
by jonnyboy
Nice find :wink:

It looks hard enough to be used as a vortex block or ammo. It might be able to be a piston. I could also see this being useful for aesthetic purposes. A lot cheaper than epoxy and if it doesn't turn out right you could just remelt it.

Posted: Fri Mar 13, 2009 10:18 pm
by pizlo
Hhahah, that video of the Styrofoam plastic. That's how you make homemade napalm... except pure acetone, mixed with some gas does a better job. Makes a consistent clear goo instead of a white blob.

Posted: Sat Mar 14, 2009 2:08 pm
by john bunsenburner
I didn't want to sa that but essentiall yes thats how ou make DIY napalm, i forgot to add before:

You can dissolve ALOT of styro foam in aceton/gasoline/a mixture of both, adjust the consistency on the thing you want to make, also this stuff is very sticky and especially in a satureated solution can make a HUGE mess. I woudl recomend doing this out side and only with things you dont mind getting full of flamable goo. All other thigns you need to know are in the instructables, and look into the advanced way of makign the patato plastic(which involves modding a pressure cooker), it is more presice and makes better plastic. Both plastics have a better consistancy than the first idea of this thread and both are easyly machined(while i would recomend the styrofoam plastic for pistons and the like) and both can be dyed WHILE manufacturing(of coarse oyu cna pain them but that would be the harder way IMHO)