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  • sch's Avatar
    05-18-2013, 10:12 AM
    sch replied to a thread Caught Up At Last! in General
    Only problem with buying 'new' is dealing with W8, soon to be w8'. W7 comps still around as refurbs and occas "old stock" from last year not yet...
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    5 replies | 715 view(s)
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    05-18-2013, 10:07 AM
    sch replied to a thread new tools in General
    Helios deep drilling owes as much to its more aggressive spiral and deep groove as it does to fine finish. Looks like a wood cutting auger bit from...
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    4 replies | 753 view(s)
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    05-10-2013, 05:55 PM
    sch replied to a thread Jacobs 14N Question in Third Hand
    Always disassemble loose bearing devices over an old towel, nothing like a ball rolling off the table into the crap on the floor or bouncing away. ...
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    2 replies | 232 view(s)
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    05-10-2013, 05:51 PM
    sch replied to a thread Replace back gear - Logan 820 in Third Hand
    It has been 10d without a reply so I suggest you try: http://finance.groups.yahoo.com/group/loganlathe/ The www.yahoo.com site has a groups...
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    1 replies | 201 view(s)
  • sch's Avatar
    05-07-2013, 11:29 AM
    sch replied to a thread Chemical question for EVAN the rocket scientist in General
    This is what the chemists refer to as the solubility partition coefficients when you mix (in this case) two different liquids. Ethanol is highly...
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    37 replies | 2516 view(s)
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    05-06-2013, 07:02 AM
    sch replied to a thread 4x6 bandsaw blade thinkness: .020 or .025 ??? in General
    One of the problems with 4x5 4x6 saws is that the recommended blade tension of at least 15 KPSI is hard to reach with the supplied tensioning knob...
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    10 replies | 482 view(s)
  • sch's Avatar
    05-06-2013, 06:46 AM
    sch replied to a thread Self-made: Sliding tap holder... in General
    At the bottom of the second picture is a ref to the website that explains the mechanism in more detail. Click on the reference...
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    6 replies | 1132 view(s)
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    04-26-2013, 10:50 PM
    sch replied to a thread coupons from enco in General
    Free shipping also does not apply if the little motor freight icon is adjacent to the item description in the catalog either except when explicitly...
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    7 replies | 393 view(s)
  • sch's Avatar
    04-15-2013, 10:56 AM
    sch replied to a thread Lathe speed control in General
    I tried this drive with a treadmill motor and it was problematic. The motor was similar to the one discussed by Forest Addy in his post, 2.5HP...
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    11 replies | 918 view(s)
  • sch's Avatar
    04-14-2013, 02:00 PM
    sch replied to a thread I have seen the light. in General
    A friend supplied me with a small wrench which fit the 4J chuck on our mutual lathes, it has much shorter arms, maybe 3cm long and facilitates the...
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    23 replies | 2346 view(s)
  • sch's Avatar
    04-09-2013, 03:20 AM
    sch replied to a thread OT: New Source for Unobtainium...NASA to Start Mining Asteroid! in General
    Basically science fiction. Our ability to harness energy is infantile compared to the robust needs of any space enterprise. Recent reference...
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    9 replies | 670 view(s)
  • sch's Avatar
    04-08-2013, 05:29 AM
    sch replied to a thread New (to me) small, old lathe; how to proceed? in General
    Jackshaft such as pictured should be readily available in the form of a 200-300 mm shaft 12-18mm in size with pillow block bearings and a multispeed...
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    14 replies | 1570 view(s)
  • sch's Avatar
    03-25-2013, 04:50 PM
    sch replied to a thread Surgical steel in General
    "Surgical steel" is either high carbon steel or hardenable stainless, both are used in scalpel blades which are used once and tossed, like razor...
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    10 replies | 1210 view(s)
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    03-25-2013, 04:39 PM
    sch replied to a thread ER collet system in General
    The R8 key way is a sore point.... Because some spindles with the internal key have been found/manufactured with the internal key improperly...
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    13 replies | 961 view(s)
  • sch's Avatar
    03-25-2013, 10:00 AM
    sch replied to a thread ER collet system in General
    An R8 spindle will take ER collet chucks from ER16 to ER40, although the ER nut that holds the collet in place differs in size considerably from ER16...
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    13 replies | 961 view(s)
  • sch's Avatar
    03-21-2013, 01:08 PM
    sch replied to a thread Long shot: technologiss milling machine. in General
    www.technologiss.eu ? Google translates the original Polish ok. Looks like they make drill presses, round column and dovetail mills with fixed or...
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    7 replies | 811 view(s)
  • sch's Avatar
    03-18-2013, 07:03 PM
    sch replied to a thread Harbor Freight Tool Grinder, one more time in General
    Needed a diamond wheel, which i got from ENCO, the plate mounted "fine grit" steel wheel for $75 on a sale. Sprung for a second HF grinder also on...
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    31 replies | 7490 view(s)
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    03-18-2013, 02:59 PM
    sch replied to a thread Opinions about a older metal lathe.... in General
    No quick change gear box, which was available, and no thread dial.... Thread dial can be fabbed fairly easily, QC gear box, not. Seems over...
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    13 replies | 2199 view(s)
  • sch's Avatar
    03-05-2013, 02:23 PM
    sch replied to a thread Yet another rpc question in General
    An idler motor can simplify the RPC, RPC startup with simple RPC can be problematic with high current draws by the RPC during windup of the 3ph...
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    14 replies | 786 view(s)
  • sch's Avatar
    03-02-2013, 03:57 AM
    sch replied to a thread Kwackers CNC Rotary Table Controller in Digital Machinist
    {On the left is the input from the control circuit from top to bottom +5v, Pul, Dir and EN. I do not know what values PUL, DIR and EN should be. On...
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    10 replies | 1537 view(s)
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About sch

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About sch
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Birmingham, AL

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Steve

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09-23-2001
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