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Recent content by David Ferguson

  1. David Ferguson

    Troublesome DMG Gildemeister CTX Fanuc lathe

    The first thing you're doing wrong, is posting in a thread that's 15 years old.
  2. David Ferguson

    Cutting 6" diameter hole in 3/4" rubber mat

    Any chance you could "sharpen" a piece of pipe and punch the holes using a press, trailer tongue, or even a hammer and block of wood.
  3. David Ferguson

    new to me puma 400c with 21i-tb tool setting question.

    Sounds like you should contact DN and get manuals for your machine!
  4. David Ferguson

    Looking for some 3D models to machine.

    Free Models on GrabCAD: https://grabcad.com/library/software/nx
  5. David Ferguson

    g76 cycle machine issues

    I figured you would want G97 (constant surface speed off) for all threading to keep the feed/pitch of the thread constant.
  6. David Ferguson

    Key Components of a Machine Shop Business Plan

    Key parts of the Business Plan: - Defining what you do well - Determining the basic costs of making that product, or providing that service. - How you will find customers that need the product / service you do well. - How much will these customers need your product/service (how much will they...
  7. David Ferguson

    Machining intersecting radii/cylinder

    I would make that as two parts and weld or solder them together. Make them just like the mating part with a slot in the vertical cylinder to accept the side piece.
  8. David Ferguson

    Any new technology in the machining world?

    Here's a better description of how the waterjet laser works: https://onlinelibrary.wiley.com/doi/epdf/10.1002/phvs.202000033
  9. David Ferguson

    Software to draw relays, breakers, etc. Replace Visio?

    I use OpenOffice Draw. I've had to build my own library of components but it's worked well for me creating wiring harness drawings.
  10. David Ferguson

    FYI, Don't waste your time with CNCMACHINES.COM auctions.

    Unless an auction says "no reserve", you have to assume there is one. In live (in person) auctions, they sometimes talk the seller into removing the reserve if it's obvious there is a legitimate buyer, and this represents the market value, here and now.
  11. David Ferguson

    Can I measure current draw on a stepper motor?

    I think you need to use a DC Amp clamp with an oscilloscope, to get a true picture of the current drawn by the stepper motor. Most likely it's trying to step against something that doesn't move.
  12. David Ferguson

    Hiring new workers and pay scale of current workers, what options are there?

    If a company I worked for advertised jobs at a higher pay rate than I was getting, I would apply for the job! -- why not? I'm a known quantity.
  13. David Ferguson

    Large Diameter (12-16") Smooth Surface Stainless Drum - Need Ideas arbor

    I would think you could do this with rolled sheet and weld the ends together. The key would be your wheel/spokes (at least one at each end to keep the round shape). The thickness of the sheet will depend on how much load there will be that would try to buckle the drum.
  14. David Ferguson

    CAMWorks producing gouged parts with 3D toolpath

    To me it looks like that face isn't parallel to the cylindrical section at the top. So it has to make some additional movement along the top edge. I would look carefully at the geometry of that surface.
  15. David Ferguson

    Advice on first time being burned

    I think you need to send them a statement showing both orders, and all payments (ie, all your business with them). That statement should show that you are still owed half the amount from the last PO. I think their accounting system never got the invoice for the first job entered, so they...