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  1. tharding247365

    What is the positional tolerance of this slot?

    Drawing states ASME. Would this be different if it were ISO?
  2. tharding247365

    What is the positional tolerance of this slot?

    I see this a lot on drawings. This part has no GD&T applied to it, therefore our Sheet Tolerances apply. Dimensions 30 & 50 are centered on the centerline of the part. Do we assume the size tolerance IS ALSO the position tolerance, to sheet tolerance. Do we assume there is "Implied...
  3. tharding247365

    Best 2 Materials for Wear Resistance and Coefficient of Friction?

    Anybody have best recommendations for a slippery surface with the lowest wear rate? Examples: Teflon on plastic Hard Anodized Aluminum on Teflon Hard Anodized on plastic This will be sliding wear. One will ride over the other.
  4. tharding247365

    Recommend a plasma cutter table

    Looking for a plasma cutter to cut 3mm aluminum panels. Looking for high resolution accurate cuts. Anybody have recommendations on a plasma cutter table? Want to use one with a hypertherm cutter. A fiber laser would probably more suitable for this but they're too expensive.
  5. tharding247365

    Recommendations Fiber Laser Cutting Machines?

    Hobby sized would be ideal, but I'm aware I'm looking at 50k minimum? Looking for a small quality production machine
  6. tharding247365

    Recommendations Fiber Laser Cutting Machines?

    Looking to invest in a fairly small laser cutting machine. We want to cut through 3mm thick aluminum. Any brand recommendations? Fiber Laser cutters seem to be the way to go, just not sure what machine to be looking at. Cheaper the better, as these don't look cheap.
  7. tharding247365

    Rectangular Hole GDT

    Is this legit? I can see what this is trying to accomplish, but is there a better way to do this or is this fine? I was under the impression you can only use diametrical callouts on a circular feature.
  8. tharding247365

    How to optimize press fits?

    Appreciate the feedback so far. Can't share any pictures. Racookpe1978: The stainless part is on the outer side of the press fit assembly, and the ceramic solid shaft is the inner part. TygerDawg: It does look like somebody will have to look into Design of Experiments. Measuring parts in an...
  9. tharding247365

    How to optimize press fits?

    Parts are inspected when they come in. The pull force is indeed a minimum that we have call out. There was testing of acceptable fits before my time. Pull forces are not done every part, but as sample quantities to verify press fit I'm looking at possibly heating up the stainless part, and...
  10. tharding247365

    How to optimize press fits?

    Left out the most important detail. One part is ceramic, other is stainless. Hence why no threads.
  11. tharding247365

    How to optimize press fits?

    We press 2 round shafts together. One piece stainless, the other ceramic. We require a specific pull force, and as of now we sometimes get good parts and sometimes bad parts. Parts are not large, they're about half an inch big. Are there are things to consider when trying to achieve a...
  12. tharding247365

    Thermocouple Values Fluctuating? Lots of noise.

    First thing, I'm not an electrical guy, but I'm trying to figure this out. I have 2 Type T thermocouples. One connected to an Omega USB-UTC that is connected to a laptop, the other connected to a Heater Controller that uses a PID controller Both of these thermocouples connectors are fastened...
  13. tharding247365

    Recommendations on Inspection Software?

    We've tried the Solidworks Inspector package. We HATE it. It is so buggy, and doesn't do basic things that we'd like to do. We've called Tech Support numerous times and have gotten the "This is a known issue" lingo. We're pretty much done with this one. QA-CAD located here looks promising...
  14. tharding247365

    Anyone use DimXpert in Solidworks?

    Appreciate the feedback, wanted to verify it wasn't just me. Why would Solidworks release an add-in that isn't remotely stable!?!
  15. tharding247365

    Anyone use DimXpert in Solidworks?

    I've been assigned to start MBD (Model Based Definition) our models, for tolerance analysis', and possibly use the MBD to carry over into drawings. This is not the actual Solidworks MBD package, just the DimXpert that's built into Solidworks. As quirky as trying to dimension parts in the model...
  16. tharding247365

    Diametrical Position on a Square or Rectangular hole

    Any words of wisdom? This part is sheet metal. I almost want to suggest to just put a general note "All parts shall conform to TP .5 ABC unless otherwise specified" and be done with it and leave out the diametrical modifier. Not only does this make more sense in my head, this is laser cut...
  17. tharding247365

    Diametrical Position on a Square or Rectangular hole

    RFS is how it's currently called out. I believe the intent, is to usually include this modifier for the "more efficient" circular tolerance zone instead of the square tolerance zone. It just caught me off guard, because a circle, for every point on a circle, the opposite side of the circle...
  18. tharding247365

    Diametrical Position on a Square or Rectangular hole

    Would it be acceptable to use a diametrical position call-out on a square feature? Trying to use a circular tolerance zone to control this, but I read somewhere you can only use the diametrical call-out on a circular feature? Can anybody explain this in detail?
  19. tharding247365

    Hole Saw for Rubber Stopper?

    I also did not have to freeze. Just a diamond coated hole saw. Same bits I use for glass. Came out pretty straight using a cordless drill, I need to get a drill press.
  20. tharding247365

    Staking Tool Material for Steel Parts

    Any other suggestions?

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