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Type: Posts; User: beone

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  1. Replies
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    Re: How Close to Charlotte, NC are you?

    Tomcat, you are correct. Long hot day, but lots of fun. I let the kids ram up thier own sand molds and keep what comes out. I do tne pouring of course.
    Dave
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    Re: How Close to Charlotte, NC are you?

    Im up for a meet but tbe next month is a problem. Tomorrow ans sunday i will have my foundry set up at the murrays mill festival. Then in two weeks to oklahoma for a wedding, then two weeks later i...
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    Re: Simple Question and maybe a dumb one

    Yes
  4. Why not add an L shaped stiffiner to the sides?

    Why not add an L shaped stiffiner to the sides?
  5. Re: working with perspex, looking for some information

    Try using a 50-50 mix of dish detergent and water as coolant. Just brush it on
    Dave
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    Re: I am in Valdese if anyone wants to chat

    I have a homebuilt 20x40 router, and a small homebuilt kill. Heading to the beach tomorrow, maybe we can get together and of the month?
    Dave
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    Re: I am in Valdese if anyone wants to chat

    Hi, I'm Dave. I live down in SOFO, you know, South of forty in hickory. Been cncing bout 13 years. Welcome!
    Dave
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    Otherwise, on the right side of each axis DRO,...

    Otherwise, on the right side of each axis DRO, you can set a scale factor. Just remember to set it back
    Dave
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    Re: Torsion Box Materials

    I would recommend ply for the skins it is more stable over time and much more robust as you fasten and remove things on it mdf or particle board will do for the ribs but glue it won't nail if you...
  10. Re: What hardware do I need to set up a coolant system?

    A bucket and a tube?
  11. Inkscape is free and has a very good raster to...

    Inkscape is free and has a very good raster to vector converter. I understand it even has a cam package
  12. Replies
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    Hickory is a good place with very few 'bad'...

    Hickory is a good place with very few 'bad' areas. The south where I live is called Mountain View and has a lot of good developments in many price ranges. The north part(where my daughter lives) is...
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    I live up in hickory in the SoFo district( you...

    I live up in hickory in the SoFo district( you know, south of forty😀). Foundry, woodworking, homemade CNC running mach3.
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    Cast 6061 will not have the same characteristics...

    Cast 6061 will not have the same characteristics as bar due to it not being cold worked. As cast it is brash and works poorly. You can improve it greatly by heat treat. Six hours or so at 400 to 450...
  15. Check your rigidity and backlash. At 6 mm the...

    Check your rigidity and backlash. At 6 mm the forces on the bit are at least double those at 3mm and it could be distorting the entire machine.
    Dave
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    Vcarve works great with mach3 I use the generic...

    Vcarve works great with mach3 I use the generic gcode processor with the .tap extension. While AutoCAD is more powerful as a cad, I find vcarve does almost everything I need. I haven't opened my cad...
  17. Thread: diy rails

    by beone
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    They should work fine, but use too many bearings....

    They should work fine, but use too many bearings. Look up the skate bearings on conduit threads. They work very early
    Well and are cheap and easy. Many will say you must have 'real' linear bearings...
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    Use a little coolant, just water will do, a mist...

    Use a little coolant, just water will do, a mist is best. I cut at about 8ipm at at 15000
    Dave
  19. This looks fantastic,thank you

    This looks fantastic,thank you
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    Really? You are comparing aluminum and paper...

    Really? You are comparing aluminum and paper mache? I wouldn't even know how to start.
  21. Had a bit of trouble sleeping there, did we...

    Had a bit of trouble sleeping there, did we adamjohn?
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    Single edge engraving bit,cool it with air and...

    Single edge engraving bit,cool it with air and water mist. Otherwise cool with 50-50 mix of water and dish detergent
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    Carbide bits will cut most anything. I use them...

    Carbide bits will cut most anything. I use them almost exclusively in 60,40,and 30 degrees. It comes down to feed and speed. In wood and polyurethane plastic, I run at 30 in per minute at a max depth...
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    Sticky: The holes are prob for lightening. Also, the kits...

    The holes are prob for lightening. Also, the kits are/were cut on a CNC so they were easy. If you are cutting by hand just omit them but make sure they are not a pass thru for a lead screw etc.
    Dave
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    You need a lube-coolant. Try a 50-50 mix of dish...

    You need a lube-coolant. Try a 50-50 mix of dish detergent with water. Slather on the acrylic before cut, keeping it wet it will make a world of difference
    Dave
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