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Type: Posts; User: RFB

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  1. Replies
    159
    Views
    17,895

    Your best bet is to completely disassemble the...

    Your best bet is to completely disassemble the machine and thoroughly Scotch-Brite all of the working surfaces. Cast iron is a porous material so the rust goes down into the iron. Therefore trying to...
  2. Replies
    37
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    47,484

    Dividing Head Calculator

    I created an application that calculates the setup for a dividing head with a 40:1 gear ratio which is what most diving heads have. It is available for the asking.

    243442
  3. I'm not a screw machine owner or an operator, but...

    I'm not a screw machine owner or an operator, but do I have a Master's degree in common sense.

    1) Are parts available for the needed repairs and if so for how long?

    2) Are the machines meeting...
  4. Granite is very stable so drilling holes will not...

    Granite is very stable so drilling holes will not effect the flatness. If you generate excessive heat while drilling then it will cause the granite to crack. You must use a diamond abrasive with...
  5. Replies
    73
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    15,893

    A sharp end mill is your enemy when feeding into...

    A sharp end mill is your enemy when feeding into a net corner radius. I have some fine grit rubber abrasive wheels and a trip up and down the end mill flutes will eliminate some of the attitude. As...
  6. Common problem with machining wood on metal...

    Common problem with machining wood on metal cutting machinery is oil and if the end product will have some type of finish then that could be a problem. As for the surface speed for high speed steel...
  7. georgee1, It depends on the range of...

    georgee1,

    It depends on the range of responsibility and the type of work. Aircraft plants want CNC machinist (operators) that can setup tools and machine, read blueprints, run parts and monitor...
  8. Thread: End Mill Pull Out

    by RFB
    Replies
    112
    Views
    24,778

    Buy end mills with Weldon flat for a set...

    Buy end mills with Weldon flat for a set screw.... and pull the end mill down against the set screw before tightening it. A shop where I worked back in 1970s bought all new mill vises. First job in...
  9. Replies
    28
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    4,064

    5 axis with a tapered shank cutting tool with...

    5 axis with a tapered shank cutting tool with 180º + inclusive shank taper angle spherical ball on the end.
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