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  • Erich's Avatar
    05-21-2018, 11:24 PM
    Long rod the diameter of the unworn hole. Slide it through the entire carb. bias the rod to the unworn side. Indicate the rod to find center. BORE...
    25 replies | 1142 view(s)
  • Erich's Avatar
    04-21-2018, 02:40 PM
    Erich replied to a thread Tightening up my lathe in General
    Evaluate backlash at 3 locations in the cross slide travel. All the way out. location for normal turning of a 1/2 to 1 inch diameter bar. All the...
    8 replies | 507 view(s)
  • Erich's Avatar
    04-20-2018, 05:56 PM
    Erich replied to a thread thread measuring in General
    Yes. Wires because they are cheaper than thread mics. If I did this regularly I would spend the dinero for a thread mike.
    14 replies | 719 view(s)
  • Erich's Avatar
    04-18-2018, 12:59 AM
    Erich replied to a thread Cutting 3" Acrylic Tube in General
    clamp one end in the 3 jaw chuck, run the other end in a steady rest. Face and chamfer end. flip part and repeat.
    25 replies | 1411 view(s)
  • Erich's Avatar
    04-14-2018, 12:34 PM
    Erich replied to a thread What material OT? in General
    Granite or some other type of stone.
    23 replies | 1448 view(s)
  • Erich's Avatar
    04-10-2018, 09:59 PM
    Erich replied to a thread A Delrin Question in General
    6.8 e-5 in/in/F
    8 replies | 853 view(s)
  • Erich's Avatar
    04-06-2018, 07:17 PM
    You can nest two angle plates together two ways. One the small points together. The other they are opposite. In the first case the angles add. In...
    23 replies | 2109 view(s)
  • Erich's Avatar
    04-01-2018, 10:26 PM
    This is the way I think this technique works. Small focused spot of heat does two things. 1 reduces yield strength. 2 Causes thermal expansion in...
    35 replies | 4150 view(s)
  • Erich's Avatar
    03-31-2018, 10:19 PM
    What is it (major diameter) when they are different?
    229 replies | 14219 view(s)
  • Erich's Avatar
    03-31-2018, 01:31 PM
    I don't agree. Start a thread by cutting the OD to the nominal major diameter. Now cut the thread to nominal pitch diameter. Measure it over wires...
    229 replies | 14219 view(s)
  • Erich's Avatar
    03-27-2018, 10:15 AM
    Erich replied to a thread Lathe problems - bed twist? in General
    DO NOT USE THE TAILSTOCK FOR THE FIRST GO ROUND OF TESTING. All you will learn is about tailstock alignment. Because you want a long stick out and...
    70 replies | 4606 view(s)
  • Erich's Avatar
    03-24-2018, 03:13 PM
    Erich replied to a thread O.T. washing machine motor in General
    The porcelain coated drums make great firepits for camping or the back yard. the holes allow good air flow and the metal gets glowing red hot so you...
    37 replies | 2402 view(s)
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About Erich

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About Erich
Poway CA
Backpacking and making swarf
Mechanical Engineering


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