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Recent content by ProgressiveRacing

  1. ProgressiveRacing

    How to insert surface symbol in ugnx drafting

    Specify the appropriate surface finish. Use GD&T to 'drive' the manufacturing process towards grinding if that is what is needed.
  2. ProgressiveRacing

    What Think3 is?

    As best I remember, Think3 is OpenMind's 3D modeler. Though it seems their CAM package, HyperMill, is far more popular... at least on this side of the pond. You can probably read more about it at the OpenMind website. Regards
  3. ProgressiveRacing

    Win7 64-bit & SW Explorer search issue

    Well... ok. I'm a UG/Pro-E user, so SW isn't exactly my forte, but I'm coming along. Perhaps a better way to ask this is: What do I need to do so that I can search part files via our server using metadata as entered within the file "properties" tab(s)? We're currently upgraded to...
  4. ProgressiveRacing

    Win7 64-bit & SW Explorer search issue

    Ok, I apologize if this has been asked before, but I cannot find a satisfactory answer on this issue anywhere it seems... We are attempting to point SW Explorer to search within a folder on our server and, even attempting to do so as admin, the change does not 'stick'. When metadata searching...
  5. ProgressiveRacing

    Aluminum surface 6061 T6 moon craters?

    I don't believe there is a maximum rpm for 6061T6 to be honest. Generally, in my aerospace machining experience with high-power gantry mills, we worked back from maximum RPM to find stable cutting conditions at maximum metal removal rates. That was before tap-testing and harmonics software came...
  6. ProgressiveRacing

    flood or through coolant for drill

    Perform a little cost analysis and see if you're wasting your time or not. 500 holes doesn't really say much... are they .25" or 2.5" deep? Perhaps the tool life is fine and you just need to change tools more often. When everything breaks down; cost per part, tooling usually comes out at 1-3% of...
  7. ProgressiveRacing

    chamfering with a spot drill

    Hi ornery, I can't say that I've had the same experiences. One of my clients builds custom equipment for optometry from time to time, much of which is comprised of 304L componentry. The first programs I worked out for them, I suggested moving away from the numerous M42 HSS chamfer mills they'd...
  8. ProgressiveRacing

    chamfering with a spot drill

    Short of employing a cham-bit, as Mike suggested, or using a custom tool, saber's suggestion is your best bet; use a larger spotter. ornery, My point is that you can. The reason the sfm suggestion is there in the first place is due to the tool's ability to withstand heat; that is not only...
  9. ProgressiveRacing

    chamfering with a spot drill

    Actually, YES, you can run the tool at a speed suitable to your effective diameter. For instance, Z-.100 (for interpolation) @ 90º included, is a .200" diameter milling tool. SFM should be set to that tool diameter, not a 1/2" drill. Being a light peripheral cut, sfm can be on the higher side...
  10. ProgressiveRacing

    Machining LP410A Nylon

    Best thing to do with this stuff is 'anneal' it first. Then it machines just fine, coming off as nothing more than powder. It absorbs moisture, so that makes coolant a bit of a problem, especially if there are any close tolerance features. Machining dry with an air blast is your best bet; high...
  11. ProgressiveRacing

    Dry machining aluminum

    Not 'dry' but using minimum quantity lubricant (MQL) as supplied by a Unist MQL system (http://www.youtube.com/watch?v=wL8HFzu586A). There seem to be a number of comparable units on the market these days. Tooling is a mix of DLC and ZrN coated micrograin carbides along with some diamond coated...
  12. ProgressiveRacing

    tapping feed rate

    Our older machines (those with rigid tapping) produce better quality threads using the "mega synchro" tap holders from Big Kaiser, which allow a very small amount of axial movement to compensate for any synchronous error. Tap life is up some 35% on those machines. We typically employ rigid...
  13. ProgressiveRacing

    Design of laser cut sheet aluminum tabs?

    Any way you can run an experimental piece before going to full sheet? Tabbing parts is somewhat commonplace but at this thickness it might be a little tricky; never tried to tab a material this thin so I'd go about it with a test, compensate and go from there till I had a process nailed down...
  14. ProgressiveRacing

    Machining non parrelell surfaces with edgecam

    A few questions: 1. What is the approximate distance along 'X' and 'Y' for the sloped section? 2. Approximate slope angle? 3. Material? 4. Current machining parameters (SFM, IPT, DOC, WOC) for rough and finish? Thanks. The Manufacturing Reliquary http://cmailco.wordpress.com/
  15. ProgressiveRacing

    drill chips

    Chip length and form is as much a function of feed (in/rev) as it is anything else, though drill geometry plays a role as well. You could simply increase feed and produce shorter chips, with better chip control – but at a reduction in tool life. As with anything else, there's always a point of...
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