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Type: Posts; User: metlmunchr

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  1. Replies
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    Hu, everyone knows true "user friendly" dividing...

    Hu, everyone knows true "user friendly" dividing devices have motors attached to them. Motors help prevent so much of our blood from draining out thru our knuckles :D
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    2,211

    Matt, that's an impressive setup. I've felt for...

    Matt, that's an impressive setup. I've felt for a long time some kinds of machining sucks. Good to see someone put that characteristic to use :D
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    160 at the handwheel. Odd number though. Most...

    160 at the handwheel. Odd number though. Most rotary tables are 90:1.
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    Heres a way I've done some thin sheet aluminum...

    Heres a way I've done some thin sheet aluminum parts in the past. mill the profile, leaving the entire bottom of the slot intact but just a few thousandths thick. then drop down thru the part and...
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    4,457

    Kong, I use a lot of ccgt aluminum specific...

    Kong, I use a lot of ccgt aluminum specific inserts for aluminum, and, unless something is happening to the corner of the insert, your problem lies somewhere other than with the insert. I'm speaking...
  6. Scott_bob, I guess the fact that power, as...

    Scott_bob,

    I guess the fact that power, as referenced in the design news article, is an exponentially derived term, flew right over your head too as it swelled with satisfaction at having found...
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    1,778

    Re the dry cutting.....A guy with Dapra told me...

    Re the dry cutting.....A guy with Dapra told me they had run high speed videos of their carbide mills and found the cutter acts like a fan if it's running fast, and that its literally impossible to...
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    1,875

    What sort of quantity are you talking about?, and...

    What sort of quantity are you talking about?, and how are you grinding it now? The 303 should be about the most machinable of the common alloys. Just make yourself a company name, for example...
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    I think there may be some issues about the...

    I think there may be some issues about the voltage on the parallel ports on a lot of laptops.....3V as opposed to the common 5V signals maybe. I've had a laptop for a long time. The "cool factor"...
  10. Where did you get the principle of: "wear varies...

    Where did you get the principle of: "wear varies roughly as the spuare of speed"?

    For sliding motion, friction losses will increase as a square function of sliding speed, and wear will increase in...
  11. Scott_bob, it's interesting to note that your...

    Scott_bob, it's interesting to note that your Fadal was 8 yrs old about 6 months ago, but now it's 10. Since wear varies roughly as the square of speed, if you've doubled the average feedrates,...
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    4,610

    If you've got a million dollars, you'll probably...

    If you've got a million dollars, you'll probably be able to set up a small mold shop. Add a couple employees with 15 to 20 years each of moldmaking experience, and a mold designer with a like...
  13. I'd agree with this.......for a mill......for a...

    I'd agree with this.......for a mill......for a specialized application like 3D surfacing or mold work. However, that work represents less than 15% of the machining currently being done in the US,...
  14. In a horizontal machining center, I'd look for...

    In a horizontal machining center, I'd look for either a Makino MC-40 with a Fanuc 11M or a Mazak H-400 with a Maza-cam control. These are both 400 mm nominal work envelope machines, and either of...
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    there's not much other way to talk about...

    there's not much other way to talk about rotational inertia in simple terms than to say it varies as the 4th power of diameter. Past that means getting into the methods by which kinetic energy and...
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    Cold, are you talking about a 1/4" EM in a...

    Cold, are you talking about a 1/4" EM in a slotting type cut at .800 DOC? Or just a light cleanup pass around the edges? Generally about one diameter deep is all you can safely run in a slotting...
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    I don't follow the mini-mills too closely since...

    I don't follow the mini-mills too closely since they're not something I'm interested in owning, but I have seen far more negative comments about them (MaxNC) than positives in the yahoo groups. ...
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    G92X0 ? Don't know whether that would work on a...

    G92X0 ? Don't know whether that would work on a rotary axis or not. Seems it would, since it just sets the current position to the specified value.
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    T-1 alloy steel plate would not be any more...

    T-1 alloy steel plate would not be any more difficult to machine than stainless, and it's got far greater strength than any SS unless the SS is a heat treatable alloy and has been heat treated. Most...
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    Having water under the material should help a...

    Having water under the material should help a lot. I know it does on my oxy-fuel burning table. Most commercial plasma tables in the lighter capacities are set up with a draft table to suck away...
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    To be worthwhile, thru tool coolant needs to have...

    To be worthwhile, thru tool coolant needs to have several hundred psi available to be able to blast chips out of holes, etc where the chips cause the most problems. Gets out of the range of your...
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    As Cadcam and Gerry point out, both fixed right...

    As Cadcam and Gerry point out, both fixed right angle and variable angle spindle attachments are available. Koma Precision makes some nice ones. You can hold them in your hand, and they cost about...
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    The moisture sensitivity is with the air being...

    The moisture sensitivity is with the air being supplied to the plasma cutter from the compressed air system. They're very sensitive to moisture in that respect, but not sensitive to moisture in...
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    Thanks Al..........that sounds like a reasonable...

    Thanks Al..........that sounds like a reasonable cause to me............I'll pass the info along to him. He's got an independent tech who services his Fanucs but doesnt normally work on Okumas. He...
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    Sam, speed issues aside, doing CAD work with any...

    Sam, speed issues aside, doing CAD work with any CAD program on ANY laptop will get old real fast. Been there, done that, and it's no fun. Picking elements in a drawing which you wish to edit or...
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    Yep, actually fixing the problem is a much better...

    Yep, actually fixing the problem is a much better route than working around it. Doesn't take long to scrap $600 worth of parts, and you'd still have to buy the encoder.

    Here's another Okuma...
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    Paul, if it's an Acme type screw, they're usually...

    Paul, if it's an Acme type screw, they're usually only hardened to Rc 28-32. Any carbide used for steel cutting will work. If it's a ball screw, they're a lot harder. If you're using brazed...
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    Gunner, I don't know whether you may have solved...

    Gunner, I don't know whether you may have solved this problem or not by now, but I'll toss in a couple suggestions and questions anyway. Since your original post stated you had a lead error PER...
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    Re the cutting of Inconel.........I don't know...

    Re the cutting of Inconel.........I don't know which Inco alloy you're looking at using, but 718 is a common one for use in jet engine parts. The guy who proposes to sell you a chunk of inconel with...
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    If you go to their site and then refresh the page...

    If you go to their site and then refresh the page you'll probably see the $17.95 price. Thats what I saw today when I went there for the first time. Your browser is probably pulling up the page...
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