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  1. M

    Spindle Taper Regrind

    There may have been long-term considerations not prioritized by the manufacturer within the experience of this community, worthy of exploration. Thanks for your reflection.
  2. M

    Spindle Taper Regrind

    The groove is close to the mid point of the taper. Thanks for your feedback.
  3. M

    Spindle Taper Regrind

    Second-hand machine, the previous owner did not attend to keeping tool holder tapers clean, and the ISO30 spindle taper suffered aluminium chip intrusion, gouging. The spindle has been reground, balanced, and draw bar adjusted by the manufacturer, with a reported result of 1-2 microns of runout-...
  4. M

    Water as Alternatives to Vortex Air Cooling of Plastic

    I'm considering a water deluge system for cooling machined plastic and collecting chips and dust, and wonder if water for cooling and chip evacuation poses any special challenges for cutting. Thanks for your feedback.
  5. M

    ISO30 Tool Holders: is this normal?

    That was my reckoning- just need to hear it from someone else. Thanks.
  6. M

    ISO30 Tool Holders: is this normal?

    I applied a soft chemise and denatured alcohol to the holders- see attached images for the results on the two holders previously pictured. The chemise came away with lots of (presumably) aluminium glitter; a finger nail ran over the surface can detect some of the marks, most with effort. I...
  7. M

    ISO30 Tool Holders: is this normal?

    I have no direct experience with ISO30 anything; mid-purchase of a used S30C spindle and tool holders, reported to have low hours. While inspecting the tool holders, all the tapers include markings- some kind of generally blotchy in bands near top and bottom, some with many longitudinal marks...
  8. M

    ISO30 Spindle > BT30 Tool Holder = Adapter Pullstud?

    I'm looking to use BT30 tool holders with an ISO30 spindle, was told this could be accomplished by replacing the tool holder pullstud. Machining the part is not in the cards- anybody know of a vendor for the adapted pullstud? Thanks.
  9. M

    Automated Screw Array Adjustment

    On the way to locating the indicated tool, I became preoccupied by the display of technical virtuosity.
  10. M

    Automated Screw Array Adjustment

    A lot of useful reflection to chew on- thanks, each and every one.
  11. M

    Automated Screw Array Adjustment

    I'd like to use my gantry-style CNC (AVID) to turn screws in an array laid out as a grid, wondered if any here had tackled such a problem. The screws are used to position the elevation of associated elements. The end of the screw to be manipulated would be presented in line with the Z axis. For...
  12. M

    Long Tooling Stick Out for HDPE

    Like a drunk wondering into someone else's house, telling the residents to leave. I asked about the spindle power in an operation. It wasn't your operation. You were not equipped to judge why I wanted to know, got bent out of shape when the invitation to digress was rejected after polite...
  13. M

    Power constants for plastics?

    "Let me guess? "You're a lawyer?" A compliment, perhaps, suggesting you stand on the side of justice and civility? I'll wager your reaction was nothing of the sort.
  14. M

    Power constants for plastics?

    Is that what you want this place to be? Where you indulge yourself with denigration and heckling?
  15. M

    Power constants for plastics?

    A sound suggestion- were it not a recording. I've made inquiries.
  16. M

    Power constants for plastics?

    The first sentence describes why the Machinist's Handbook exists in the first place; the second why that knowladge is adapted to circumstance. Sure, we test what we build. And give due consideration before building. The argument- and hostility -toward discovery doesn't serve my interests...
  17. M

    Power constants for plastics?

    Sure. Those points are clear- and have been. Some observations are skewed to the interest of the operator- and that's fine. Your presumption remains an extant system, and that regardless of the capacity of that system, confounding factors will always render spindle capacity irrelevant. I...
  18. M

    Power constants for plastics?

    Present availability was exactly what I sought to determine. While I don't doubt the value of such a proposition- and would be happy to share any determination -the suggestion is a bit after-the-fact- akin to performing a structural analysis after construction, rather than before.
  19. M

    Long Tooling Stick Out for HDPE

    Characterizing asking about spindle power as "being told a bunch of shit", we clearly don't share the same values. Yes, chip evacuation is an important consideration. So is heat. Work holding. Distortion. No, that doesn't preclude relatively deep, rapid cuts, managed correctly- as I have...
  20. M

    Long Tooling Stick Out for HDPE

    Ever make long cuts into HDPE?
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