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  1. The labyrinth seals being talked about are...

    The labyrinth seals being talked about are machined into the parts of the spindle, they're not a separate item. So you should be set...
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    As I see it, the toroidal cylinder segments can...

    As I see it, the toroidal cylinder segments can be made fairly simply, with just an offset boring bar with a projecting cutting element (or two, three, whatever, as long as they're relatively narrow...
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    If you have the option, leave a little material...

    If you have the option, leave a little material on all the surfaces but the bore (sized for broaching), cut the splines, then somehow put a mating male spline "mimic" accurately trued in a lathe,...
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    Cool, looking forward to the pics. And yes,...

    Cool, looking forward to the pics. And yes, you're pretty close.
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    Nah, by then they'll just take a picture and have...

    Nah, by then they'll just take a picture and have their Insta3D™ printer make one. It'll use totally organic-based feedstock, and decompose to air and compost after use, so it doesn't take up extra...
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    Good that you're making some progress. If you...

    Good that you're making some progress. If you get a chance, a couple pics of the setup and dresser on the thread would be great.
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    Given the OP's lack of experience and equipment,...

    Given the OP's lack of experience and equipment, I'd think a single-edge flycutter would be a poor choice for cutting this hole. Even a good drill press doesn't have the spindle/column stiffness...
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    I know little about such things, but are you sure...

    I know little about such things, but are you sure no other damage was done to spindles, tapers, or other parts of the machine(s) during the wheel explosion? That you're not getting good registration...
  9. Wow, now that's dedication to craft and family. ...

    Wow, now that's dedication to craft and family. I'd be out getting as much excitement as I could handle (which in that situation, might not be much).




    Here's where I ask if the had any...
  10. I suspect divorce isn't the issue here... :( ...

    I suspect divorce isn't the issue here... :(

    I'm interested in A2 rod and plate, 7/8" rod would be great, along with 1" and larger. 1/2" and larger plate too.

    Remember the "game size" USPS...
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    Check out the Carpenter website, see if they have...

    Check out the Carpenter website, see if they have any data. At half cobalt, I'd guess on the lower SFM side with good carbide. You may want to check out cobalt toxicity to decide whether your dust...
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    Sure, why not. If you do this sort of work again...

    Sure, why not. If you do this sort of work again you may want to find a "downcut" tool to help with pullout risk, but usually PCD tools are low (or no) helix and don't create a lot of delam.
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    With a PCD tool that's sharp, and with a matrix...

    With a PCD tool that's sharp, and with a matrix material that's not gummy (and prone to buildup on the tool edges) run fast - likely your machine can't go faster than any limit. For FPT, try .004"...
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    Get a good HEPA filter for the vac, a "drywall"...

    Get a good HEPA filter for the vac, a "drywall" rated bag, and sure, have the vac outside. When the job is done junk the bag, wash down the vac barrel housing with water, and ensure the HEPA filter...
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    Yup, that one should be banned, nothing but...

    Yup, that one should be banned, nothing but linkspams in his/her/its messages.
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    He was using the blank space to illustrate what a...

    He was using the blank space to illustrate what a desolate and desperate situation he was in...
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    g-coder05, was DTS your personal company, and so...

    g-coder05, was DTS your personal company, and so the software used was yours? I could see it as an issue if you were using a "third party" license for contract programming (you work for a company,...
  18. Got any close-in pics of the inserts you were...

    Got any close-in pics of the inserts you were cutting with?
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    Air blast, but get a good dust collector!

    Air blast, but get a good dust collector!
  20. Huh - never had a problem with ribbon fire at...

    Huh - never had a problem with ribbon fire at shoulders. I did keep SFM down, and used sharp tooling (Al-specific inserts or ground HSS), but this was sciencey-work, not production, so I wasn't...
  21. Machining magnesium - some generally useful information

    Hi all,
    I've done a fair bit of Mg machining, but am always looking for more tips on it. I stumbled across a site that seems to have a number of good pages on it, so I thought I'd share a few:
    ...
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    Was this a "better late than never?" moment, or...

    Was this a "better late than never?" moment, or just a random drive-by editing?
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    Ox, do you know the grade and hardness of the CI...

    Ox, do you know the grade and hardness of the CI you'll be working on? At least some recommendations will be based on that info.

    Some CI's are very small chipping, even "dusty", some more...
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    Look under "sheet" rather than "shim":...

    Look under "sheet" rather than "shim": McMaster-Carr
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    Must be one o' them fancy city boys with a full...

    Must be one o' them fancy city boys with a full set of chompers...
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