Slashdot Mirror


Fosfor Gadgets' Top 10 Weirdest Computer Case Mods

Ant writes "DiggFosfor Gadgets' Top 10 Weirdest Computer Case Mods: 'Computers come in many different flavours, but apparently that ain't enough for everybody. Case modding -- the modification of a computer chassis - has become a big hobby for thousands of enthusiasts around the world...'" Update: 12/23 13:20 GMT by Z : The dangers of night posting. Added link.

5 of 148 comments (clear)

  1. Re:Link to the article please? by Anonymous Coward · · Score: 5, Informative
  2. Re:Link? by DigitumDei · · Score: 5, Informative

    I submitted this story yesterday (with the link). Seems they prefered the submission without the link over mine. ;)
    http://gadgets.fosfor.se/the-top-10-weirdest-case- mods/

  3. If you like casemods, you'll love this by Anonymous Coward · · Score: 4, Informative

    There are tons of wierd and wonderful casemods on this site
    http://www.mini-itx.com/

    They have a steady stream of people sending in photos of their work.

  4. Drilling Stainless steel for the WMD mod... by deacon · · Score: 4, Informative
    On page 5 of the wmd mod link

    http://www.bit-tech.net/modding/2005/10/19/wmd_g-g nome/5.html

    the fabricator notices that he keeps dulling his drill bits. There are two reasons for that.

    First, drill bit rpm is TOO HIGH. Stainless steel has poor thermal conductivity, and will not draw heat away from the drill bit very well. The drill bit cutting edge will go over temperature and soften and dull over.

    This nice PDF chart should be printed out and put next to your drill press:

    http://www.etec.wwu.edu/faculty/McKell/rpm%20ipm%2 0charts.pdf

    It shows an allowable speed (surface feet per minute) of 30 for stainless steel. Note this is the same as for titanium.

    Convert to rpm

    http://www.maintenanceresources.com/ReferenceLibra ry/CNC/scratching.htm#sfm-rpm

    or here:

    http://www.drillmasters.com/speedfeed.shtml

    using the formula RPM=SFM ÷ 0.262 ÷ DRILL DIA

    and you end up with for a 1/4 inch hole 30 ÷ 0.262 ÷ .25 = 458 RPM

    Thats about 7 revolutions per second.. pretty slow.

    These reccomended RPMs/SFM are for factory production where time is money. I usually run at a lower RPM than (half as fast or less) because I am not in a hurry. The drill will last much longer the slower you go.

    The second problem is the work hardening of stainless steel. If the drill bit is allowed to rub the surface without making a chip for even one revolution, the surface of the stainless will harden and dull the bit. You must press hard so that chips start forming immediately. If you must stop to raise the drill to clear chips for deep holes then raise the bit very quickly. Don't let the bit rub in the hole without cutting at any time.

    Finally, the cutting lubricant: I use rubbing-alcohol+water mixture. It boils away in the drill hole to cool the bit, and does not leave an oily mess on the work.