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  • Users: tommo
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  1. tommo

    Hard Coat Anodizing Tapped Holes - Oversized Taps Available?

    Hi, We do a lot of Hard Coat Anodizing of Aluminum Parts, Mill Spec Mil-A-8625 Type III. My question is, as the anodizing builds up the surface of the material, in our case about 0.0015" on each surface, are there over-sized taps available to cut the threads, so after plating, the thread will...
  2. tommo

    Swagelok Fittings - Low Pressure Applications - Leaks?

    I've used a lot of Swaglok fittings over the years and really never had a problem, always using a tube cutter, and always marking the fitting at finger tight, and doing the standard 1 1/4 turn tightening procedure. Always use an appropriate tube wall thickness to the tube diameter. e.g 0.035"...
  3. tommo

    Oxygen in 316SS Electropolished Stainless Steel

    There are a few posts on this topic, but haven't seen any definitive answers, so just seeing if there are any opinions out there. I am making a gas system, and trying to size the tubing from a Mass Flow Controller (MFC) to a Burner where Oxygen and a Fuel Gas (methane) will be mixed and burnt...
  4. tommo

    Round Rail Linear Ball Bushings - Dry Lube Option?

    Hello, I have an application that uses Linear Round Rail Ball Bushings on a 1.0"shaft. The process develops a powder that mixes with the grease used to lubricate the bushings. The operators like to liberally grease the bearings, resulting in greasy sticky shafts that this powder sticks to...
  5. tommo

    STEP Assemblies AND Solidworks

    A supplier of Electrical Enclosures, www.hoffmanonline.com has models of their range of enclosure available for download in STEP format. On downloading the zipped file and opening in Solidworks (2007) I have the perfect model of an enclosure, including hardware, internal panels, door latches...
  6. tommo

    Aluminum Profile Framing Systems

    Hi, My company uses a particular brand of aluminum profile system, which is quite brilliant, but we are having trouble with the distributor. We are looking to find another profile supplier, but I want to ask the community either recommended brands - or things to watch out for. I really don't...
  7. tommo

    O-Rings: How do you mate them into an assembly?

    Folks, I have generated o-rings using the SWEEP function and want to mate them into my assembly. As mates can only be generated on a planar, cylindrical, spherical, conical surfaces - what tricks do you guys use to locate o-rings in assemblies? I know this sounds like an assignment question -...
  8. tommo

    Allowances for Coatings : Machinist or Drafter?

    I have a question, it is pretty basic - but I would like to know what the consensus of opinion is. We make a lot of parts, through job-shops that need to be hard coat anodized, which increases the size of the part by 0.015" per surface. People having work plated will also have the same...
  9. tommo

    Lee Plug Suppliers

    Does anyone know of suppliers of Lee Plugs in Los Angeles that resell the plugs in individual quantities. Enquiries to the Lee Plug Company in Ca meet with the response "minimum order of 50!"

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