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  • Users: paulcook
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  1. paulcook

    Music in the Office

    Hey all - hope this isn't inappropriate for an engineering forum, but would love y'alls take. I've been working at this company for about 4 years. They play music all day, everyday, in the engineering office. The music plays on a Sonos and is controlled by the hipsters in the marketing...
  2. paulcook

    Fusion 360 CAM VS MasterCAM

    Apologies if this has been asked. With Fusion in active development, I can't find a recent opinion. We're at a crossroads where we need to decide if we expand our MasterCAM license to include 3D 3-Axis Milling or switch to Fusion. I floated Fusion as the cost for 7 years of the basic CAM...
  3. paulcook

    Fully Threaded SHCS

    Any tips on where to potentially sourced stainless steel socket head cap screws with the following specs: 5/16-18 Fully threaded (critical) Lengths of 2.25”/3.5” SS alloy not critical Thanks y’all
  4. paulcook

    Standard HeliCoils Untreading Resistance

    We are putting standard stainless steel HeliCoils into aluminum castings. Thread is 5/16-18. We specify that the installer use medium strength (blue/242) Loctite, torquing to 125in-lbs. If the installer re-adjusts the product after the Loctite cures, is there a chance the HeliCoil comes out...
  5. paulcook

    Standard Tap Specifications / H3 Taps

    Would you consider the following tap "standard" - i.e. yielding a class 2 fit? https://www.mcmaster.com/2583A13/ Pitch Diameter Limit H3 Is it on the loose side, the tight side, or just what is used most of the time? Thanks y'all
  6. paulcook

    Permanently Locking Threads

    I have two parts that need to be permanently threaded together. One is cast aluminum with a 1/2-14 NPSM female thread. The other is galvanized steel 1/2-14 NPSM nipple. We currently use Loctite (the glue stick ones, primer green + high strength red) to keep these parts from rotating relative...
  7. paulcook

    316 Fasteners Made in Taiwan or 18-8 Fasteners Made in USA

    Headline says it all. Both sourced from McMaster for structural application. Which would you choose?
  8. paulcook

    Upgrading Manual Kiln With Digital Control

    Just bought a used kiln to help with some prototype work. Unfortunately, it is not possible to program controlled heating schedules with this kiln. It has a Kiln Sitter, which basically uses a physical piece of material (a "cone"), which softens at a certain temperature allowing a physical...
  9. paulcook

    Die Casting "Classes"

    On another thread, I was admonished for not knowing what a "Class I" casting is. It was in reference to a question on a die cast part out of ADC12 (A383). I explained we use NADCA standards for specifications, which is parameter specific (i.e. surface finish, linear tolerance, etc. all get...
  10. paulcook

    Tapped Holes In Aluminum Casting - Distance From Edge

    Designing a cast aluminum part (ADC12 alloy), and trying to determine an adequate distance from the center of the tapped hole to the edge of the material. Bolt is 5/16-18 stainless + loctite. Depth > 3X bolt diameter. For distance from the threaded hole center to the edge, we have about 0.77"...

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