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  1. BillPSU

    The best way to protect a bolt from loosening?

    Drill a hole through the nut and bolt and use a stainless steel tie wire. I've never seen a tie wired nut and bolt come loose. Bill
  2. BillPSU

    Designing a Rotating Arm Jig

    What size of radius are you generating? If the radius is not too larger than 7" you could setup a faceplate fixture on a lathe and turn the OD as your radius. You did not give any quantity numbers and the expected savings for doing this work. Good Luck Bill
  3. BillPSU

    The best way to protect a bolt from loosening?

    Another choice is to use a Dardelet thread. It is a self locking thread. You still may be exceeding the strength of the fastener and stretching, but it won't come loose. Bill
  4. BillPSU

    CAD/CAM Machine tools

    Typically the control manufacturer is not the machine tool manufacturer. An example is Fanuc controls are used on many different configuration machine tools and the primary interface to machine is the servo drives and auxiliary systems. The servo drives are glorified PLC's and the auxiliary...
  5. BillPSU

    CAD/CAM Machine tools

    All CNC equipment have PLC's doing the mundane things on machine tools. Turning pumps on, monitoring limit switches, cycling way lube, ball screw lube, indexing turrets many functions to many to mention. Most of these are not controlled by the operator but by the machine tool builder. If...
  6. BillPSU

    CAD/CAM Machine tools

    You also need to know what tooling is required to do the job and depends on what type of programming you are doing. Machining: Roughing end mills, finishing end mills, reach problems using long length end mills, material issues cast austenitic stainless versus aluminum, ETD 150, hardness of...
  7. BillPSU

    W-axis on CMM ? Calibration Metric?

    The w-axis can be a tertiary axis movement parallel to the z-axis. An example is a horizontal boring machine. The spindle movement in and out is the z-axis. While the table movement parallel to the z-axis is the w-axis. On your CMM. The w-axis may be a rotational axis. It probably depends on the...
  8. BillPSU

    Math Question : Writing Machine Macro

    Use a G92 position preset in your program and change the preset as the part moves. You may have to put a program stop at your expected preset location and indicate the part location. When I programmed the locations of rotation points and part location was known and taken into account when it was...
  9. BillPSU

    MACHINING A SOCKET DRIVER

    I have seen special sockets being made. Drill the center. Change to a end mill and flat bottom the drilled hole. Put the socket on a Bridgeport with a shaper head and shape the square in one corner. Index the part and repeat the shaping. Bill
  10. BillPSU

    Record the real-time feed rate from CNC machine

    I want to ask the question why do you need the feedrate? The velocity of the various slides does not give you the true feed rate. Say you have a 1" diameter mill and you are milling a .625" radius the periphery of the cutter is performing the actual feedrate while the centerline of movement...
  11. BillPSU

    Establishing Earphone manufacturing

    Its called manufacturing engineering. First you need to create a design and decide if you make the part(s) or purchase the part. If you make the part what processes are required for the part, the equipment required, the tooling required. Making a product is more than designing and designing must...
  12. BillPSU

    Alternative Lost-wax casting for complex metal parts

    Some parts there is no substitution of any casting process except lost wax. An example is hot section turbine blades. Air foil shape tolerances and smooth surfaces and extremely complex and tight tolerance cores and super alloy materials requiring vacuum melt and pour. There is no substitute...
  13. BillPSU

    Water Wicking In Lighting

    It depends on what voltage your LED are operating at. Currently at my companty we have to control water ingress on harness connections which are either 5 volt or 12 volts. We build construction equipment which used EH valves(electo-hydraulic valves). Normally we us dielectric grease to control...
  14. BillPSU

    Coating booth system

    Define your process first. 1. Understand the part conditions coming to the booth, Cross section, thickness, size, weight, length for corners 2. Define you paint prep processes (shot blast, wash, multi phase wash, phosphatize) 3. Define your paint ( melt temperature, number of colors, finish...
  15. BillPSU

    Optimal Condition Monitoring System for Pipe Casting Machine

    Optimal conditions should also include timing on the inoculation of the ductile iron. How long to hold the iron after incoculation depends on the inoculant used and other factors. You will have to understand your particular melt processes. You will also need to understand your refractory life in...
  16. BillPSU

    how would a machinist program this?

    A machinist would have a print with the necessary information including what needed to be machined and the tolerances. The manufacturing engineer would have defined the methods to be used by the machinist based on additional information. What is the material? Aluminum, cast iron gray, cast iron...
  17. BillPSU

    Quick Drawing Question

    Depending on the shop practices at your company the .188 x 45 degree may mean the surface width is .188 and the chamfer could mean .133 x 133 chamfer. Putting an upper and lower finish requirement is very unusual, meaning if you got a 16 finish you would have to roughen the surface. Normally you...
  18. BillPSU

    Looking for a 20000 - 30000 RPM Drill powered by pneumatic

    http://www.airturbinetools.com/ looks like they have what you want. Bill
  19. BillPSU

    Rule #1 Question - Implied Flatness

    Thickness and flatness are two totally different dimensions. I've had this argument on many occasions. You can buy a sheet of steel and see out of flatness conditions of 3/4" or greater be on the sheet and still meet the material this thickness. You may stand a chance by calling the problem a...
  20. BillPSU

    40" Shoulder to shoulder gage

    Ask your customer how they check the part and borrow their gage. Master Vernier Caliper another choice but this will cost about $3000. Probably a lot more money than the part is worth. Be sure the temperature is correct as temperature variation will cause problems for this length. Bill

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