Open Source Ball Mill: Difference between revisions

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=Basics=
#REDIRECT [[Open Source Ball Mill (Disambiguation Page) ]]
*Part of the [[Open Source Laboratory Construction Set]]
*It is essentially a cylendar placed on its side, it has an axis going down the center of it's axis as well (preendicular to the circle faces), this is spun causing the material placed inside to repeatidly fall carying ball bearings with them, these then meet and collide on the cylendar walls.  This process is repeated untill the internal materials are powderized to the desired consistency.  Then the contents are removed and seperated. (PS Sorry if this rambled a bit, feel free to simplify it)
 
 
=3D Printing Uses=
 
Ball mills can be used to grind down a medium to a powder, which could be useful for the application of selective laser sintering, where a powder (ie: plastic, aluminum, stainless steel, titanium, etc) is sintered into a 3d model by a laser.
 
=Comments by [[User:Maltfield|Michael Altfield]]=
 
I ([[User:Maltfield|Michael Altfield]]) used to make ball mills for grinding shredded aluminum foil into a fine powder for thermite.
 
My first ball mill I bought for $20 from unitednuclear.com. It was the simple 3lb rotary rock tumbler. Iirc, the rubber belt-drive broke on it, so I ended up making my own. I would scrap motors from wasted electronics like standing osculating fans, hook the drive up to a long threaded rod, and use that to spin the cylindar.
 
The aluminum powder I made was very, very fine. The aluminum was sourced from aluminum foil passed through a nice-ish paper shredder then grinded in the ball mill.
 
=Used For=
* Making powder for Selective Laser Sintering 3D Printers
*Powderization of solids
*Mixing of said powders
 
=Industry Standards=
*
 
=Existing Open Source Designs=
*[[https://www.youtube.com/watch?v=nG3sMuAqqz0&t This one might honestly be ready to use with the addition of a housing, motor, and motor control system (also maybe scale up/down)]]
 
=Minimum Viable Products=
*Scaleable
*Modular
*Quick Removal of Main Container for Little Delay Time In Use
*Noise Reduction
*AC or DC input power
 
=Basic Design=
==Container==
*A cylendrical container in which the grinding takes place
*Needs to Be Durable
*Also has the addition of the axis through the middle
 
==Mechanism==
*The part that takes the rotation from the modor and adapts it to the axle of container
*Could be as simple as direct attatchment or much more complex
 
==Motor==
*
 
==Controller==
*
 
==Power Supply==
*
 
==Housing==
*The shell in which all the above componets are contained
 
==Balls==
*Stainless Steel Ball Bearings work well for most cases
*Ceramic or Teflon are better for more reactive substances
 
=BOM=
*
 
=See Also=
*
 
=Useful Links=
*[[https://en.wikipedia.org/wiki/Ball_mill Wikipedia Page on Ball Mills]]

Latest revision as of 18:16, 6 July 2020

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